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ICS502M - 190MHz LOCO PLL Clock Multiplier | Renesas
ICS502M

ICS502M - 190MHz LOCO PLL Clock Multiplier | Renesas

Renesas Electronics ICS502M is a LOCO PLL clock multiplier that generates a high-quality clock output and reference from a low-frequency crystal or clock input. The device supports input clock frequencies from 2 MHz to 50 MHz and output clock frequencies up to 190 MHz, with a 3.0 V to 5.5 V operating-voltage range. It is packaged in an 8-pin SOIC and is designed to replace crystal oscillators in electronic systems requiring multiplied clock outputs. The low-cost oscillator architecture uses phase-locked-loop techniques and a standard fundamental-mode crystal to provide a compact frequency-multiplication solution. A clock generator, also called a clock multiplier or PLL clock generator, converts a lower-frequency reference into one or more higher-frequency timing signals. Within the broader clock and timing hierarchy, the ICS502M belongs to the oscillator family, the clock-generator family, and ultimately the timing-control IC category. Its phase-locked loop compares the reference with a divided feedback signal, adjusts the internal oscillator, and produces a stable multiplied output. This architecture makes it useful in systems needing a clock rate that is inconvenient or unavailable from a discrete crystal. Key verified features include a maximum output frequency of 190 MHz, input-frequency support from 2 MHz to 50 MHz, low jitter of 50 ps one sigma, and operation from 3.0 V to 5.5 V. The output can support 25 mA drive capability at TTL levels. Duty-cycle behavior is specified at 45/55 through 160 MHz, which is relevant when clocking TTL-compatible logic. The advanced low-power CMOS process supports portable and embedded equipment where clock generation must combine compactness with controlled power consumption. The ICS502M is suited to CPU and digital-logic clocking, communications equipment, test and measurement systems, industrial controls, and embedded platforms that can tolerate the deterministic jitter of a PLL-derived clock. Because PLL multiplication depends on the reference and feedback configuration, board-level layout, supply integrity, loop stability, and output loading can influence signal quality. The 8-pin SOIC package is straightforward to assemble but requires careful decoupling close to the supply pins and short, controlled clock routes to minimize added noise and skew. Designers should verify the required multiplication ratio, output frequency, duty-cycle limits, jitter budget, supply voltage, and downstream load before finalizing a design. They should also compare the PLL-derived output against the phase-noise requirements of any receiver, serializer, processor, or ADC. The manufacturer datasheet remains the authoritative source for programming details, timing characteristics, electrical limits, and the complete pin assignment. This page consolidates the verified manufacturer and distributor information for ICS502M, adds application-specific engineering context, and identifies same-package alternatives where the available cross-reference data supports direct replacement. It also distinguishes verified facts from parameters that still require confirmation from the complete datasheet or application-specific testing.

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ICS502MI - 140MHz LOCO PLL Clock Generator | Renesas Electronics
ICS502MI

ICS502MI - 140MHz LOCO PLL Clock Generator | Renesas Electronics

The Renesas Electronics ICS502MI is a LOCO PLL clock multiplier and clock generator that produces a high-quality, high-frequency CMOS clock output from a lower-frequency crystal or clock input. The device supports a maximum frequency of 140 MHz, uses PLL technology, provides one clock circuit, and is specified for differential input/output operation of No/No. It is packaged in an 8-SOIC surface-mount package measuring 0.154 inch width. The operating supply voltage range is 3 V to 5.5 V, and the specified operating temperature range is -40°C to +85°C. The ICS502MI is intended for systems that need a stable reference clock or multiplied clock output without relying on a high-frequency source directly. A LOCO PLL clock generator is a clock-and-timing integrated circuit that multiplies a low-frequency reference into a higher-frequency output. The reference can be a crystal or an external clock, and the internal PLL helps produce a higher-frequency clock for digital logic, communications, control electronics, and embedded systems. In system terms, it belongs to the clock generator and phase-locked-loop hierarchy, which sits within clock-and-timing integrated circuits and semiconductor timing-control devices. Its CMOS output is intended to drive downstream digital circuitry requiring a stable reference frequency. The ICS502MI’s main engineering characteristics include a 140 MHz maximum frequency, a 2:2 input-to-output ratio, one clock circuit, CMOS output, and PLL operation. Its 3 V to 5.5 V supply range allows use in both 3.3 V and 5 V system rails, although the clock-generation architecture and output behavior should be checked against the complete manufacturer datasheet for each board design. The -40°C to +85°C operating range covers industrial-temperature requirements commonly encountered in industrial controls, embedded equipment, communications hardware, and test systems. The 8-SOIC package supports standard surface-mount assembly and provides a practical footprint for designs that do not require a tiny BGA or QFN package. The device is identified as obsolete by the available product listing, so current supply and lifecycle planning require careful review before committing to a new production design. Engineers evaluating a replacement should compare the reference-input method, PLL configuration, output frequency range, supply voltage, pinout, package, timing characteristics, and operating-temperature requirements. A functionally similar clock generator is not automatically a drop-in replacement because reference pins, feedback configuration, output enable behavior, and output edge characteristics must match the original PCB footprint. Typical uses include generating a system reference for digital logic, providing a multiplied clock for communications equipment, and supplying a CMOS clock in embedded industrial systems. The reference source and external component values must be selected using the manufacturer’s recommended application circuit and electrical characteristics. Because this is a timing device, board layout should keep the crystal or reference input connections short, maintain a clean supply path, and provide suitable bypassing close to the device. For implementation, verify the exact pin assignment, recommended crystal load capacitance, output-drive configuration, and power-supply sequencing requirements in the manufacturer datasheet. Place decoupling capacitance close to the supply pins and route high-speed clock outputs over controlled-impedance traces when they feed sensitive digital or communications circuitry. This page summarizes the available ICS502MI specifications, lifecycle information, package data, sourcing path, and replacement-evaluation considerations.

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ICS502MT - 190MHz PLL Clock Generator | Renesas Electronics
ICS502MT

ICS502MT - 190MHz PLL Clock Generator | Renesas Electronics

Renesas Electronics ICS502MT is a LOCO PLL clock generator IC that produces a high-quality, high-frequency clock output and reference from a lower-frequency crystal or clock input. The device supports operation up to 190 MHz, uses one clock-generation circuit, and is available in an 8-SOIC surface-mount package. Its supply-voltage range is 3 V to 5.5 V, making it suitable for conventional low-voltage digital and communication systems. A PLL clock generator is a clock-and-timing IC that uses phase-locked-loop technology to multiply, divide, or otherwise condition an input frequency into a stable output clock. In the broader semiconductor hierarchy, the ICS502MT belongs to clock and timing integrated circuits, clock generators, frequency synthesizers, and power-management-dependent signal-support devices. Its LOCO architecture provides a practical way to derive a higher-frequency operating clock without requiring a high-frequency external oscillator. Key features include a maximum output frequency of 190 MHz, a CMOS output, PLL operation, and support for either a crystal or external clock input. The 8-SOIC package is 0.154 inch, or 3.90 mm, wide and is supplied in tape-and-reel form for automated production assembly. A single clock-generation circuit keeps the device focused on compact systems that need one principal clock output rather than multiple independent outputs. ICS502MT can multiply a lower-frequency reference into a high-frequency clock suitable for digital logic, communications equipment, and embedded processing systems. Because PLL-based generation depends on stable reference and feedback behavior, component placement, power-supply integrity, output loading, and crystal or source selection remain important. The device's CMOS interface also requires attention to voltage levels and signal-integrity practices when driving external loads or long PCB traces. Typical uses include digital control systems, communication modules, processor clock trees, embedded platforms, and interface subsystems that require a reference-derived clock. Its single-circuit architecture is advantageous when the design needs one high-quality clock and additional logic would add unnecessary cost, board area, or power consumption. Verify the required multiplication ratio, input-frequency range, output jitter, and timing margins against the complete manufacturer documentation before committing a new design. A primary design consideration is to preserve a clean reference path from the crystal or clock source to the ICS502MT, while placing output-bypass and decoupling capacitors close to the supply pins. Follow the manufacturer's recommended crystal load capacitance and PCB layout because incorrect loading can shift frequency or impair startup. This page combines the device specifications, sourcing guidance, application context, and replacement considerations that engineers need when integrating the ICS502MT into a clock-generation design.

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ICS503M - 160MHz LOCO PLL Clock Generator | Renesas Electronics
ICS503M

ICS503M - 160MHz LOCO PLL Clock Generator | Renesas Electronics

The Renesas Electronics ICS503M is a 160 MHz clock generator IC and LOCO PLL clock multiplier packaged in an 8-pin SOIC measuring 3.90 mm wide. It is designed to generate a high-quality, high-frequency clock output from a low-frequency crystal or clock input. The supplied distributor record identifies the ICS503M as a clock generator with one output and an 8-SOIC package. A PLL clock multiplier is a timing IC that multiplies a lower-frequency reference into a higher-frequency clock. This clock generator belongs to the broader hierarchy of oscillator and clock ICs, frequency synthesizers, timing devices, and semiconductors. The LOCO family was designed as a cost-effective way to produce a high-quality, high-frequency clock when the source frequency is substantially lower than the required system clock. The ICS503M's primary documented specifications are its 160 MHz maximum clock-generator frequency and single-output configuration. Its 8-SOIC surface-mount package provides a compact implementation for communication, networking, industrial, and digital-system clock trees. The 3.90 mm package width is explicitly stated by the distributor listing, while additional electrical limits and detailed timing characteristics were not included in the provided verified extraction. The LOCO architecture separates clock generation from the frequency source. A low-frequency crystal or external clock can be multiplied by the internal PLL to produce the required output frequency. PLL-based generation can reduce the cost and size of the frequency reference compared with using a high-frequency resonator, although loop filter selection, reference stability, output jitter, and startup behavior must be evaluated in the target design. Typical uses include generating a high-frequency communication clock from a lower-frequency reference, supporting digital processors and programmable logic, and clocking interface or data-conversion systems. The ICS503M can also serve as a clock-tree element where one low-frequency source must be multiplied before distribution to multiple downstream circuits. Designers should confirm the complete pinout, reference-input range, output waveform, supply voltage, output drive, jitter, lock behavior, and stability requirements against the manufacturer datasheet before layout release. Because only summary distributor specifications were provided, these implementation-critical values remain deliberately unresolved rather than estimated. This page combines the verified 160 MHz, single-output, and 8-SOIC package information with traceability to the available distributor and datasheet listings. It also distinguishes confirmed data from unavailable parameters, provides application-oriented engineering context, and avoids presenting unsupported pin assignments, prices, or substitution claims as verified facts.

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ICS503MT - LOCO PLL Clock Multiplier | Renesas | 8-SOIC
ICS503MT

ICS503MT - LOCO PLL Clock Multiplier | Renesas | 8-SOIC

The Renesas ICS503MT is a LOCO PLL clock multiplier and clock generator designed to produce a higher-frequency clock output from a lower-frequency crystal or clock input. The device is listed in an 8-SOIC surface-mount package, operates from a 3 V to 5.5 V supply, and supports a 0 °C to 70 °C operating-temperature range. It is categorized as a clock generator, PLL, frequency synthesizer, and clock/timing integrated circuit. A PLL clock multiplier is a timing semiconductor that uses phase-locked-loop technology to derive a stable output clock from a lower-frequency reference. This type of device belongs to the clock and timing IC hierarchy, alongside clock generators, frequency synthesizers, PLL-based multipliers, and other timing-control components. The ICS503MT is intended for systems that require a controlled clock relationship between an input reference and a multiplied output. The ICS503MT accepts either a crystal or clock input and produces a CMOS clock output. Its 8-SOIC package supports surface-mount assembly, while the listed reel packaging is suitable for automated production handling. The 3 V to 5.5 V operating-supply range allows use in conventional 3.3 V and 5 V digital systems when the downstream clock requirements match the device specifications. The device is identified as obsolete or end-of-life in the product information, so new designs should confirm lifecycle status and sourcing requirements before committing the ICS503MT to a production BOM. For an existing design, engineers should review the manufacturer datasheet for the exact multiplier ratios, crystal recommendations, output characteristics, timing limits, electrical limits, and package drawings before modifying the circuit. Typical uses for this device include legacy digital equipment, embedded control systems, communications equipment, and other clocked electronics that already have a validated ICS503MT board layout. The primary design consideration is preserving the original footprint and reference-source configuration; changing crystal frequency, load capacitance, supply voltage, or output loading can alter timing behavior. This page combines the listed package, electrical, environmental, lifecycle, and application characteristics with practical guidance for legacy-clock restoration and replacement assessment. It also distinguishes verified device facts from parameters that require confirmation in the manufacturer datasheet.

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ICS508M - 250 MHz PECL-to-CMOS Clock Converter | Renesas
ICS508M

ICS508M - 250 MHz PECL-to-CMOS Clock Converter | Renesas

The Renesas Electronics ICS508M is a single-circuit clock converter that generates a high-quality CMOS clock output from a PECL input and supports frequencies up to 250 MHz. The device is packaged in an 8-pin SOIC measuring 3.90 mm wide, with separate VDD supply connections identified in the manufacturer documentation. It operates without a PLL, uses a 1:1 input-to-output ratio, and has one differential input section with a single-ended CMOS output. A clock converter is a clock-and-timing IC used to bridge incompatible electrical interfaces while preserving the timing information of a periodic signal. Within the broader hierarchy, a clock converter belongs to clock generation and timing ICs, alongside clock buffers, clock multipliers, dividers, phase-locked loops, and distribution devices. The ICS508M is specifically a logic-level conversion device rather than a frequency synthesizer, so its main function is interface translation instead of frequency multiplication or division. The verified headline characteristics are a maximum operating frequency of 250 MHz, PECL input, CMOS output, a 1:1 input-to-output ratio, no PLL, and one clock circuit. These features make the ICS508M useful when a system contains a high-speed PECL clock source but the receiving logic requires a CMOS-compatible clock. The 1:1 relationship means the converter does not intentionally change the fundamental clock frequency while transferring it between the two logic families. The ICS508 uses separate supply connections for its input and output sections, a characteristic that helps the two interfaces operate in their respective voltage domains. The manufacturer documentation also identifies the ICS508 as a cost-effective method for producing a high-frequency CMOS clock from a PECL source. Exact supply-voltage tolerances, input-output delay, output jitter, rise and fall time, temperature range, and package dimensions beyond the stated width were not available in the supplied verified data and therefore require confirmation from the manufacturer datasheet. Typical clock-converter applications include high-speed digital backplanes, telecommunications timing interfaces, FPGA or ASIC clock-interface conversions, and legacy systems that mix ECL-family clocking with CMOS logic. The ICS508 can also be evaluated for instrumentation and test systems where a PECL oscillator is available but the destination device expects a CMOS clock. In every case, the source and destination logic levels, voltage rails, edge-rate requirements, and system timing budget must be checked before implementation. A key design practice is to treat the PECL input and CMOS output as separate high-speed signal paths. Use short, impedance-controlled connections, minimize parasitic capacitance, provide the required local decoupling, and validate source and load termination with an oscilloscope or suitable high-bandwidth test equipment. Do not infer differential signal integrity, jitter performance, or logic thresholds from the basic frequency and interface specifications alone. This product record combines the verified distributor and manufacturer data with an explicit distinction between documented facts and missing parameters. It also identifies where application-specific companion parts may help engineers build a broader clocking system, while clearly noting that no pin-compatible replacement was verified by the supplied cross-reference results.

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ICS508MI - 250MHz PECL to CMOS Clock Generator | Renesas
ICS508MI

ICS508MI - 250MHz PECL to CMOS Clock Generator | Renesas

The Renesas Electronics ICS508MI is a single-channel clock generator and PECL-to-CMOS converter rated to 250 MHz, with a 1:1 input-to-output ratio, housed in an 8-pin SOIC (0.154 inch, 3.90 mm width) surface-mount package. It accepts a PECL reference clock and produces a CMOS clock output from a 2.375 V to 5.5 V supply, and it belongs to the ICS508 ClockBlocks clock generator family. A clock generator is a timing IC that produces a stable, distributed clock signal for the digital blocks of a system. A PECL-to-CMOS converter is a specialised clock-buffer function: positive emitter-coupled logic (PECL, also called ECL) is a high-speed differential-style bipolar logic standard used inside high-speed telecom and datacom equipment, while CMOS is the low-noise, low-power logic family used by most modern ASICs, FPGAs and processors. A converter of this type sits in the hierarchy clock generator > clock buffer > clock and timing IC > integrated circuit, and it is used when a design must translate an ECL/PECL domain clock onto a CMOS domain rail without adding a PLL or changing the fundamental frequency. Key features of the ICS508MI include a maximum operating frequency of 250 MHz, a single output circuit with no internal PLL, a fixed 1:1 divide ratio between input and output, and a differential-input capable interface. The device operates from a 2.375 V to 5.5 V supply and is specified in the 8-SOIC surface-mount package, with tube packing indicated by the MI ordering suffix. Architecturally the ICS508MI is deliberately simple. There is no PLL, no VCO and no programmable divider chain, so the output is a buffered and level-shifted replica of the input clock with deterministic phase behaviour and very low added jitter relative to PLL-based solutions. The ICS508 family uses separate supply pins for the PECL input side and the CMOS output side, which allows the converter to be operated at the supply level that best suits each side of the interface, such as 5 V PECL driving a 2.5 V CMOS core. Typical applications include telecom line-card and cross-connect equipment, network interface cards, SONET/SDH and Ethernet line cards, high-speed backplane distribution, test and measurement instrumentation, and any board that mixes ECL/PECL clocking with CMOS logic. The key design consideration is supply partitioning: keep the PECL and CMOS supply rails decoupled, terminate PECL inputs with the appropriate bias network, and observe the recommended output termination to avoid edge degradation at 250 MHz. This page consolidates the ICS508MI specifications, drop-in alternatives, packaging details and practical layout guidance into one reference, adding engineering context that is not in the manufacturer datasheet itself.

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ICS508MT - 250 MHz PECL-to-CMOS Clock Converter | Renesas
ICS508MT

ICS508MT - 250 MHz PECL-to-CMOS Clock Converter | Renesas

Renesas Electronics ICS508MT is a PECL-to-CMOS clock converter with a maximum operating frequency of 250 MHz, a 1:1 input-to-output ratio, and one clock channel. The device converts a differential PECL clock input into a single-ended CMOS clock output, providing a practical interface between high-speed PECL circuitry and conventional CMOS logic. It is housed in an 8-pin SOIC package measuring 3.90 mm in body width. A clock converter is an interface IC within the clock and timing hierarchy, where clock-generation and clock-buffer functions support digital logic, communications, and signal-processing systems. PECL, or positive emitter-coupled logic, is a high-speed differential signaling format, while CMOS provides a single-ended output suitable for driving conventional digital circuitry. The ICS508MT bridges these electrical domains without using a PLL. Key features include a 250 MHz maximum clock frequency, one converter circuit, a 1:1 input-to-output ratio, and separate VDD supplies for voltage translation. Differential clock input supports noise-resistant high-speed transmission, while the CMOS output provides a compatible signal for downstream digital logic. The absence of a PLL also means no multiplication or division function is added by this device. Technically, the ICS508MT is a clock translator rather than a frequency synthesizer. It preserves the input clock relationship at its output while changing the interface from differential PECL to single-ended CMOS. Separate supply domains allow the input and output circuitry to operate from different supply voltages, which is useful when connecting clock sources and logic devices that use different rail levels. Designers must still provide suitable decoupling and high-speed routing between the source, converter, and receiving logic. Typical applications include telecommunications and data-communications clock distribution, high-speed digital backplanes, FPGA clock interfaces, network equipment, and test instrumentation. The part is particularly appropriate when a board contains a PECL clock source but the receiving logic requires a CMOS-compatible clock. When designing around the ICS508MT, prioritize short, controlled impedance traces, solid grounding, and manufacturer-recommended bypass capacitors. Check that the PECL common-mode and termination arrangement matches the clock-source requirements, and verify the output supply and logic thresholds against the downstream device. This page combines the defining ICS508MT specifications, practical interface guidance, and verified drop-in alternatives. It also distinguishes the device from true clock generators and PLL-based converters so engineers can select it according to interface, frequency, packaging, and supply-domain requirements.

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ICS511M - 200MHz LOCO PLL Clock Generator | Renesas Electronics
ICS511M

ICS511M - 200MHz LOCO PLL Clock Generator | Renesas Electronics

Renesas Electronics ICS511M is a LOCO PLL clock generator IC designed to produce a high-quality high-frequency clock output from a lower-frequency crystal or clock input. The verified distributor information identifies the device as a 200 MHz clock generator with PLL capability, CMOS output, and an 8-SOIC surface-mount package measuring 0.154 inch, or 3.90 mm, in width. Its operating supply range is 3.135 V to 5.25 V. A clock generator is a timing IC that converts a stable low-frequency reference into a higher-frequency clock required by digital logic, communications equipment, processors, and interface circuits. A phase-locked loop, or PLL, is the feedback-based clock architecture used in the ICS511M. In this product hierarchy, ICS511M is a clock generator with PLL capability, belonging to the clock and timing IC family within integrated circuits and power-management-adjacent digital systems. The LOCO product family is intended to provide economical frequency multiplication and clock distribution functions. The principal verified specifications include a maximum frequency of 200 MHz, one clock circuit, PLL operation, clock or crystal input, and CMOS output. These characteristics make ICS511M suitable for systems that require a local high-frequency clock without using a dedicated high-speed processor clock tree. The 8-SOIC package supports conventional surface-mount assembly and is distinct from larger leaded packages. The 3.135 V minimum and 5.25 V maximum supply limits place it in a low-voltage digital supply range. The typical clock-generation topology connects a crystal or external clock source to the input, configures the PLL multiplication ratio, and feeds the resulting CMOS clock into the target digital subsystem. This arrangement can reduce the number of high-frequency clock sources required across a board while centralizing frequency generation. Compared with a free-running oscillator, the PLL approach allows the output frequency to be related to an external reference. Compared with a microprocessor that includes an internal PLL, ICS511M provides a separate timing source that can be shared by multiple functional blocks when the circuit design allows it. ICS511M can be used in communications equipment, digital control systems, embedded processing platforms, clocked logic, and industrial or consumer electronics requiring a stable high-frequency reference. Designers should verify the complete input-frequency range, output-frequency limits, jitter, duty-cycle, timing, and loop-filter requirements against the manufacturer datasheet before finalizing a design. Those parameters are not present in the supplied verified web data and must be confirmed before production use. This page combines verified distributor and manufacturer references, the available LOCO-series identification, a package-level comparison framework, and practical selection guidance. It also distinguishes verified information from parameters that require datasheet confirmation, helping engineers evaluate ICS511M without treating generic PLL or clock-generator claims as part-specific facts.

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ICS511MI - 160MHz Single PLL Clock Generator | Renesas
ICS511MI

ICS511MI - 160MHz Single PLL Clock Generator | Renesas

The Renesas Electronics ICS511MI is a single-phase-locked-loop clock generator with a maximum operating frequency of 160 MHz, clock or crystal input, and CMOS output in an 8-pin SOIC package. Its 1:1 input-to-output ratio and low-cost LOCO architecture are designed for generating a high-quality clock output from a lower-frequency crystal or clock source. A clock generator is an integrated timing device that converts a reference clock or crystal into one or more stable timing signals. Within the broader semiconductor hierarchy, the ICS511MI is a PLL clock generator, a clock and timing IC, and ultimately a power-management-adjacent frequency-generation component. Its single-channel structure simplifies designs that require a local high-frequency clock rather than a more complex multi-output timing architecture. The ICS511MI provides a maximum operating frequency of 160 MHz, accepts either clock or crystal input, and produces a CMOS output. The listed input-to-output ratio is 1:1, indicating that the generated output frequency corresponds directly to the supplied reference relationship. Its operating temperature range extends from -40°C to +85°C, allowing operation across industrial temperature environments when the external reference and load conditions meet the device requirements. Internally, the device uses a single PLL to multiply or organize a lower-frequency reference into a higher-frequency clock. This approach offers a practical alternative to relying solely on a high-frequency external oscillator when the system requires a locally generated, specified timing signal. The one-circuit implementation also reduces board area compared with solutions containing several clock-generation channels. Typical applications include communication equipment, digital signal-processing systems, frequency conversion, clock multiplication, and general digital subsystems requiring a local CMOS clock. The ICS511MI is particularly relevant to compact designs where an 8-pin surface-mount package and a single clock output are preferred over a larger multi-channel timing device. Designers should select the reference frequency and external loop-filter components according to the manufacturer recommendations, then verify output jitter and acquisition behavior across the intended frequency range. Board layout should keep the crystal or clock path short, provide a clean return path, and place support components close to the device to reduce susceptibility to noise and parasitic feedback. This product page combines the ICS511MI device identity, verified operating parameters, packaging information, drop-in comparison candidates, and practical design guidance. It also highlights the distinctions that matter when evaluating clock-frequency range, package compatibility, reference input method, and application suitability before making a replacement decision.

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ICS511MT - 200MHz PLL Clock Generator | Renesas Electronics
ICS511MT

ICS511MT - 200MHz PLL Clock Generator | Renesas Electronics

The Renesas Electronics ICS511MT is a single-output PLL clock generator IC designed to produce a high-frequency CMOS clock from a lower-frequency crystal or clock input, with a maximum output frequency of 200 MHz. It is packaged in an 8-pin SOIC measuring 3.90 mm wide. The ICS511MT is identified as a LOCO PLL clock multiplier, a clock-generation approach used to multiply a reference clock while providing a stable, high-quality output for digital systems. A PLL clock generator, also called a frequency multiplier or clock synthesizer, belongs to the clock and timing IC category. It uses a phase-locked loop to derive an output frequency from a reference source. The reference can be a crystal oscillator or external clock, and the generated CMOS output is suitable for systems requiring a higher-frequency operating clock than the source provides. Key features of the ICS511MT include PLL clock multiplication, a maximum frequency of 200 MHz, one clock circuit, CMOS output, and support for both crystal and clock inputs. The 1:1 input-to-output ratio is listed for the device, while the PLL architecture provides a practical route to generating a high-frequency clock from a lower-frequency reference. Its single-circuit configuration suits designs requiring one multiplied clock rather than multiple independently generated outputs. Technically, the ICS511MT is intended for clock generation where the output must be derived from a stable reference. The use of a crystal input supports designs that require predictable frequency behavior, while clock input support allows the device to operate from an existing system reference. The CMOS output interface makes it relevant to digital logic, processor, communications, and embedded-control systems requiring a high-speed clock signal. Typical applications include clocking for digital processors, communications equipment, test and measurement systems, embedded control platforms, and general-purpose digital logic. The device can reduce the need for multiple external clock-generation solutions when a single high-frequency CMOS clock is sufficient. Its principal benefit is clock multiplication in a small 8-SOIC package, although board-level stability, jitter, supply requirements, and output-drive limits must be checked against the manufacturer datasheet before finalizing a design. For PCB implementation, place the device close to the crystal, decoupling capacitors, and clock-consuming circuits to minimize trace length and noise pickup. Follow the manufacturer’s recommended crystal load-capacitance network, provide stable supply decoupling, and route the output as a short, controlled-impedance clock trace. Confirm pin orientation, operating limits, and crystal requirements directly from the manufacturer datasheet and the package drawing. This product summary combines the device’s identified LOCO PLL architecture, 200 MHz maximum frequency, CMOS output, input options, package format, sourcing context, and practical clock-tree design considerations to support faster component selection and PCB planning.

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ICS512M - 200MHz Clock Generator | Renesas Electronics
ICS512M

ICS512M - 200MHz Clock Generator | Renesas Electronics

The Renesas Electronics ICS512M is a 200 MHz clock generator IC with a PLL and bypass function, supplied in an 8-pin SOIC package measuring 0.154 inch, or 3.90 mm, in width. The listed device provides one clock-generation circuit, accepts a clock or crystal input, produces a CMOS output, and supports a 1:2 input-to-output ratio. According to the supplied distributor and manufacturer listings, its core function is to generate a high-quality, high-frequency clock output and a reference clock from a lower-frequency crystal or clock source. A PLL clock generator is a clock-and-timing integrated circuit that multiplies or organizes an input reference into one or more system clock outputs. Its place in the broader hierarchy is PLL clock generator > clock generator > clock and timing IC > integrated circuit. The ICS512M is therefore used when a system needs a more stable, controlled, or distributed clock derived from a lower-frequency source, especially where crystal and clock reference generation must share one compact device. The verified listing identifies the ICS512M as a 200 MHz clock generator with PLL bypass, crystal or clock input, CMOS output, one circuit, and a 1:2 ratio. These characteristics make it applicable to communication hardware, RF systems, digital boards, clock generation, timing distribution, and synchronization. The 8-SOIC surface-mount package supports compact designs where a through-hole clock generator would be unnecessarily large. The PLL architecture allows the device to produce a high-frequency output from a lower-frequency crystal or reference clock while retaining a bypass path for direct clocking. This architecture is useful when the design needs both a reference source and a multiplied clock without implementing multiple separate timing components. The 1:2 ratio is the most specific verified functional detail for the ICS512M, while other device parameters are not stated in the supplied search data. Typical uses include generating reference and operating clocks for communication equipment, synchronizing digital subsystems, supporting RF signal-chain timing, and furnishing a CMOS clock to board-level logic. In a multi-clock system, the device can reduce the number of discrete oscillator and divider blocks, but the final loop-filter, crystal, decoupling, and output-loading design must follow the manufacturer datasheet before production release. The primary design consideration is to confirm the exact input range, output waveform, jitter, operating temperature, and bypass behavior against the Renesas ICS512 datasheet. Engineers should also validate startup, crystal loop stability, and output loading in the intended PCB environment because those values are not fully provided in the retrieved search snippets. This page consolidates the verified Renesas and distributor information, separates confirmed specifications from missing datasheet parameters, identifies same-family drop-in candidates, and adds practical procurement and design guidance for engineers evaluating ICS512M clock-generation requirements.

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ICS512MI - 160MHz PLL Clock Multiplier | Renesas Electronics
ICS512MI

ICS512MI - 160MHz PLL Clock Multiplier | Renesas Electronics

Renesas Electronics ICS512MI is a single PLL clock-multiplier clock generator with a maximum output frequency of 160 MHz, supplied in an 8-pin SOIC package. It accepts a clock or crystal input, provides bypass operation, and uses CMOS output circuitry. These characteristics position the ICS512MI in the clock and timing hierarchy as a phase-locked-loop clock generator rather than a conventional fixed-frequency oscillator. A PLL clock multiplier is a timing IC that derives one or more stable clock outputs from a lower-frequency reference. Its phase-locked loop compares the reference with an internal feedback signal and adjusts the generated output to maintain phase and frequency relationships. In the ICS512MI, the input can be a clock signal or crystal, while PLL bypass allows the system to select a direct clock path when required. This combination supports frequency conversion and clock distribution in computing, networking, communication, and industrial systems. Principal features include a maximum clock frequency of 160 MHz, one clock-generation circuit, CMOS output, PLL capability with bypass, and a stated input-to-output ratio of 1:2. The 8-pin SOIC package provides a compact surface-mount form factor suitable for conventional PCB assembly. The device is positioned as a low-cost oscillator alternative when a system needs a high-quality multiplied clock or reference clock derived from a lower-frequency source. Technically, the important design consideration is that the reference source, loop behavior, output stability, and bypass mode must all be evaluated as one clock-generation system. A crystal-connected design provides a stable reference, while an externally driven clock offers flexibility in systems that already have a reference available. The bypass path should be evaluated for startup sequencing, glitch behavior, and output-source transitions using the manufacturer’s recommended circuit and timing information. Typical uses include processor and peripheral clock generation, communication-system reference clocks, network-interface timing, industrial control modules, and general-purpose frequency multiplication. The ICS512MI can be especially useful where replacing a higher-cost crystal oscillator with a programmable PLL-based clock source simplifies board-level frequency planning. When laying out a PCB, route the input, feedback, ground, and clock-output paths with attention to return paths and switching-edge behavior. Follow the manufacturer datasheet for recommended crystal-load components, decoupling, grounding, and maximum operating conditions. Validate timing margin in the assembled system rather than relying only on nominal frequency figures. This page combines the ICS512MI specifications, package details, practical clock-design guidance, and clearly qualified replacement information to support faster engineering evaluation and sourcing.

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ICS512MT - 200MHz LOCO PLL Clock Multiplier | Renesas | 8-SOIC
ICS512MT

ICS512MT - 200MHz LOCO PLL Clock Multiplier | Renesas | 8-SOIC

The Renesas Electronics ICS512MT is a LOCO PLL clock multiplier and clock generator IC that multiplies a low-frequency crystal or external clock reference up to a maximum output frequency of 200 MHz at a 1:2 multiply ratio, housed in an 8-pin SOIC package with a 0.154 inch (3.90 mm) body width. It accepts a clock or crystal oscillator input, drives CMOS clock outputs, and includes a bypass path so the PLL can be disabled when a direct reference clock is preferred. A clock multiplier is a phase-locked loop (PLL) based timing device that takes a low-cost, low-frequency reference source - typically a crystal oscillator running between 2 MHz and 50 MHz - and synthesises a much higher, phase-locked output frequency. In the product hierarchy, a clock multiplier sits under clock generator ICs, inside clock and timing ICs, within integrated circuits, and ultimately falls under the broader timing and clocking element of any digital or RF system. Its purpose is to deliver high-quality, stable, jitter-controlled timing from an inexpensive reference. Key features of the ICS512MT include a PLL with bypass capability, a maximum output frequency of 200 MHz, a 1:2 input-to-output ratio, CMOS output signalling, and a single clocking circuit on board. The bypass mode allows the same board to be used in test or low-power configurations where the PLL lock time or power consumption is undesirable. Because the part is a multiplier rather than a general-purpose fractional-N synthesiser, the design is simpler, cheaper, and typically lower in phase noise than a programmable synthesizer of comparable output rate. Technically the ICS512MT uses a phase-locked loop that compares a divided output against the reference input and continuously corrects the internal voltage-controlled oscillator until the multiplier ratio is satisfied. Locking behaviour, reference-to-output jitter, output drive strength, and supply requirements are governed by the manufacturer datasheet, which should be consulted for absolute maximum ratings, recommended decoupling, and crystal load-capacitance selection. Typical uses include telecommunications line-card and base-station clocking, networking equipment clock synthesis, instrumentation and test-and-measurement front ends, industrial control and data acquisition systems, and any board that must convert a modest-frequency oscillator into a 200 MHz domain clock for high-speed serial links or ADC/DAC sampling systems. When designing around this device, pay particular attention to reference jitter and loop bandwidth: a crystal reference with excessive phase noise will multiply that noise by the same ratio at the output, and a noisy reference cannot be corrected downstream. Keep supply decoupling tight and route the crystal or reference input away from high-current switching nodes to preserve the low-jitter behaviour the LOCO architecture is intended to deliver. This page consolidates the device specification, family drop-in options in the same SOIC-8 footprint, comparison tables and practical design notes, giving an engineer the decision context that a bare distributor listing does not.

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ICS513M - 140MHz LOCO PLL Clock Generator | Renesas
ICS513M

ICS513M - 140MHz LOCO PLL Clock Generator | Renesas

The Renesas ICS513M is a LOCO PLL clock generator and fanout distributor with a maximum output frequency of 140 MHz, one clock circuit, CMOS output, and an 8-pin SOIC package. It accepts a crystal or external clock input and includes PLL bypass functionality, allowing it to generate a high-quality clock from a 14.31818 MHz crystal or clock source. The 1:2 input-to-output ratio reported in the verified product data supports clock multiplication use where a higher-frequency CMOS clock is required. A PLL clock generator is a clock-and-timing semiconductor that locks an internal phase-locked loop to a reference oscillator and multiplies or redistributes that reference into one or more stable digital clock outputs. In the product hierarchy, a PLL clock generator belongs to clock generation and distribution, then clock and timing ICs, then broader semiconductor and digital IC categories. It is used where a circuit requires a controlled relationship between a low-frequency crystal reference and a higher-frequency operating clock. The ICS513M's principal verified features include a 140 MHz maximum operating frequency, CMOS output logic, one clock circuit, support for both crystal and clock inputs, and PLL bypass capability. Its 8-SOIC package measures 3.90 mm in width according to the distributor listing. The 1:2 input-to-output ratio makes the device relevant to systems that need frequency multiplication from a standard 14.31818 MHz reference. Technically, the ICS513M combines reference generation with phase-locked-loop multiplication and clock distribution. The verified descriptions characterize it as a cost-effective way to produce a high-quality, high-frequency clock output. PLL bypass provides a selectable operating mode for designs that require direct reference-clock behavior rather than multiplied output, although the supplied data does not specify bypass propagation delay, jitter, lock time, or loop bandwidth. Typical uses include digital logic timing, communication equipment, embedded processing, and general-purpose clock distribution where a crystal or external clock is available. The ICS513M can be used as a clock source for circuits requiring a CMOS-compatible, multiplied clock derived from 14.31818 MHz. Its single-circuit fanout structure is appropriate for designs that need one primary high-frequency clock rather than multiple independently programmable outputs. When implementing the ICS513M, verify the crystal load capacitance, feedback-divider configuration, operating voltage, and output timing against the manufacturer datasheet. The verified snippets do not provide supply-voltage limits, output rise or fall times, phase jitter, RMS period jitter, or cycle-to-cycle jitter. Those timing and electrical details should be confirmed before using the device as a direct replacement for a different PLL generator. This page consolidates the verified distributor specifications, genuine source links, application guidance, and same-family replacement candidates. It also distinguishes confirmed ICS513M parameters from unavailable electrical and timing data so engineers can make a traceable component-selection decision rather than treating unsupported values as guaranteed specifications.

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ICS513MT - 140MHz PLL Clock Generator | Renesas Electronics
ICS513MT

ICS513MT - 140MHz PLL Clock Generator | Renesas Electronics

The Renesas Electronics ICS513MT is a LOCO PLL clock generator and fanout distribution integrated circuit capable of operating up to 140 MHz. It accepts a clock or crystal reference, provides CMOS clock outputs, supports PLL bypass, and is packaged in an 8-pin SOIC package measuring approximately 3.90 mm wide. The device is designed for systems requiring a stable, distributed reference clock without implementing a discrete phase-locked-loop arrangement. A PLL clock generator is a timing integrated circuit that locks an internal oscillator to an external reference and then produces one or more predictable clock outputs. The ICS513MT belongs to the LOCO family of clock generators, combining a phase-locked loop with fanout distribution in a small integrated package. Its clock-and-crystal input flexibility allows it to serve either an externally supplied reference or a 14.31818 MHz crystal, depending on the system architecture. The principal operating features include a maximum frequency of 140 MHz, one clock-generation circuit, a 1:2 input-to-output ratio, CMOS output technology, and PLL bypass capability. The bypass function provides a practical alternative path when the design requires direct reference-clock behavior. The SOIC-8 package also supports conventional surface-mount assembly and gives the clock generator access to power, ground, input, and output functions within a compact footprint. Technically, the part uses a phase-locked loop to establish an output clock related to its reference source. Because its primary inputs include either a crystal or external clock, the circuit can accommodate a frequency-standard reference used by communications, computing, control, and embedded systems. The 140 MHz upper operating frequency provides substantial timing headroom for digital logic, while the CMOS outputs are suited to systems using conventional CMOS clock-input thresholds. Exact operating limits, tolerance, and stability details must be confirmed in the manufacturer datasheet before release to production. Typical applications include digital controller clocking, communications-interface timing, embedded processing modules, data-conversion systems, and general fanout distribution. It is particularly relevant when a board must derive a consistent high-frequency clock from a shared 14.31818 MHz reference while maintaining a compact surface-mount layout. In multi-load designs, output loading and trace length become important because excessive capacitance or impedance mismatch can degrade clock-edge quality. The primary design consideration is to validate the reference frequency, PLL configuration, output loading, and decoupling against the worst operating conditions. Keep clock traces short, provide a clean return path, use appropriate series termination when edge rates are fast, and account for capacitive loading on every CMOS output. A solid ground plane and local input/output bypass capacitors help reduce supply-induced jitter and clock-edge distortion. This product page combines the ICS513MT operating characteristics with package information, sourcing guidance, application analysis, and verified drop-in alternatives. It helps engineers identify whether the LOCO PLL architecture, 140 MHz capability, 1:2 ratio, and SOIC-8 footprint fit a new clock-distribution design before conducting board-level timing validation.

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ICS514M - 140MHz PLL Clock Generator | Renesas | 8-SOIC
ICS514M

ICS514M - 140MHz PLL Clock Generator | Renesas | 8-SOIC

Renesas Electronics ICS514M is a 140MHz clock generator and fanout-distribution IC that uses a phase-locked loop to multiply a 14.31818MHz crystal or clock reference. It is packaged in an 8-pin SOIC measuring 3.90mm wide and operates from a 3V to 5.5V supply in the commercial 0°C to 70°C temperature range. A clock generator is a timing IC that converts a stable low-frequency reference into one or more higher-frequency clock signals. Clock generators and fanout-distribution devices form part of the broader clock and timing IC category, supporting clock synthesis, distribution, and system timing in digital equipment. The ICS514M uses PLL multiplication to provide a practical alternative to selecting and sourcing a high-frequency crystal for every clocked circuit. The device supports a 14.31818MHz crystal or clock input and reaches a maximum output frequency of 140MHz. Its configurable S1 and S0 input pins provide operating-state control referenced in the datasheet: when S1 and S0 are both low, the internal PLL is disabled, the CLK output remains low, and the crystal oscillator and REF output remain active. This permits a system to retain reference-clock availability while suppressing the divided or multiplied clock output. The 8-pin surface-mount SOIC package supports compact clock-generation layouts in industrial, communications, consumer, and embedded equipment. Operating from 3V to 5.5V makes the device usable with both 3.3V and 5V system rails, although the complete external crystal, load-capacitor, and output-loading design must be evaluated against the manufacturer datasheet. Its maximum 140MHz rating is a key selection criterion for processors, programmable logic, communications equipment, and digital peripherals requiring a multiplied reference. A primary design consideration is that PLL programming, crystal accuracy, load capacitance, output jitter, and allowable operating modes must be checked before layout release. Decoupling capacitors should be placed close to the supply pins, and clock traces should be routed with controlled impedance and short return paths to minimize noise pickup and crosstalk. The stated 140MHz maximum should not be treated as guaranteed performance for every crystal and output-divider configuration. This product page consolidates the verified manufacturer and distributor information, provides engineering-oriented selection guidance, identifies same-footprint alternatives, and highlights design details that help buyers compare ICS514M clock generators more efficiently than a basic distributor listing alone.

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ICS514MT - 140MHz Loco PLL Clock Generator | Renesas
ICS514MT

ICS514MT - 140MHz Loco PLL Clock Generator | Renesas

Renesas Electronics ICS514MT is a Loco PLL clock generator with a maximum operating frequency of 140 MHz, CMOS output, and support for either a 14.31818 MHz crystal or an external clock input. The device is packaged in an 8-SOIC package measuring 0.154 inch, or 3.90 mm, in width. Its PLL includes a bypass function, allowing it to support both synthesized and bypassed clock-generation paths. A PLL clock generator is a timing integrated circuit that multiplies, divides, or conditions an input clock to produce one or more stable output frequencies. In the broader semiconductor hierarchy, the ICS514MT belongs to the clock and timing IC family, where PLLs are used alongside oscillators, dividers, buffers, and clock trees to distribute timing signals throughout electronic systems. Its LOCO architecture is intended to provide an economical frequency-generation solution from a common crystal reference. The ICS514MT accepts a clock or crystal input and produces a CMOS clock output. Its maximum frequency is 140 MHz, and its input-to-output ratio is listed as 1:2. The PLL and bypass functions give designers the option to retain a direct source-clock path or use phase-locked synthesis. These features are useful where a system needs more than one frequency domain but only a small number of clocks. The single-circuit architecture keeps the design focused on one principal clock-generation function. A crystal-based implementation can use the specified 14.31818 MHz reference, while an external clock input offers flexibility when another oscillator already provides a suitable reference. Because the output technology is CMOS, the device is intended to interface with digital logic operating at compatible voltage levels, subject to the operating limits and supply requirements defined in the manufacturer datasheet. Typical uses include communications equipment, digital signal-processing systems, embedded-control platforms, frequency-sensitive test equipment, and general-purpose digital subsystems. In a communications design, the part can create a stable high-frequency operating clock for a synthesizer, controller, or data-conversion chain. In test equipment, it can provide a repeatable reference for timing-sensitive measurement or processing sections. PCB implementation should preserve short clock paths and suitable return paths to minimize susceptibility to noise and crosstalk. Place the crystal, input circuitry, decoupling capacitors, and output load close to the device where the layout guidance permits. Check the bypass-mode state before system startup so that the intended clock path is established consistently. This product overview combines the ICS514MT device classification, operating limits, package information, drop-in replacement evidence, and application guidance into one engineering reference. It also identifies design checks that are important beyond the basic 140 MHz headline specification, including PLL bypass behavior, source selection, clock routing, and package-level decoupling.

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ICS542M - 156 MHz 1:2 Clock Divider | Renesas | SOIC-8
ICS542M

ICS542M - 156 MHz 1:2 Clock Divider | Renesas | SOIC-8

The Renesas Electronics ICS542M is a clock fanout buffer and programmable divider IC with a maximum input frequency of 156 MHz, supplied in an 8-pin SOIC package. It accepts a CMOS clock and provides divided outputs using selectable divide ratios of 2, 4, 6, 8, 12, or 16. Its 3 V to 5.5 V operating-supply range supports both 3.3 V and 5 V systems, while the 1:2 distribution function provides two clock outputs from one source. A clock divider is a timing IC that derives one or more lower-frequency or phase-related clock signals from an input reference. Within the broader clock and timing hierarchy, the ICS542M belongs to the clock-buffer, clock-distribution, and clock-divider category. This functionality is useful when a subsystem needs a divided reference clock, multiple outputs for parallel logic, or a lower-frequency signal generated without adding a separate oscillator and PLL. Key verified specifications include a maximum frequency of 156 MHz, a 1:2 output configuration, CMOS inputs, CMOS three-state outputs, and a 3 V to 5.5 V supply range. The listed divider ratios permit useful choices for digital clocking, data converters, communications modules, and embedded systems. The package designation is 8-SOIC with a stated width of 0.154 inches, or 3.90 mm. The ICS542M combines clock division and distribution in one device. The divide control selects the relationship between the input clock and the generated outputs, while the fanout section supports distribution to two destinations. This integration can reduce the number of separate timing components required when only one of the available divide ratios is needed. Because the verified product information does not include detailed propagation-delay, output-duty-cycle, rise-time, fall-time, or jitter values, those characteristics should be checked in the current Renesas datasheet before high-speed timing closure. Typical uses include clock distribution for digital logic, generating a divided reference for data-acquisition systems, supporting communications equipment, and producing deterministic clocks in embedded control platforms. The 156 MHz ceiling accommodates demanding CMOS clock trees, but actual system operation must account for supply voltage, temperature, load capacitance, and the selected divider ratio. For layout, place the device close to the clock source and receiving circuits to minimize trace length and propagation-delay variation. Keep output traces short, provide the decoupling specified by the manufacturer datasheet, and use controlled-impedance routing when outputs drive longer PCB traces. Verify unused-output state, enable or three-state behavior, and rise/fall-time requirements in the system timing budget. This page consolidates the verified Renesas and distributor information, lifecycle evidence, practical clock-tree design guidance, and a transparent comparison of parameter gaps. It also distinguishes confirmed electrical facts from unverified details rather than inferring missing timing values or assuming drop-in alternatives where the supplied cross-reference data does not prove compatibility.

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ICS542MI - 156 MHz 1:2 Clock Buffer | Renesas Electronics
ICS542MI

ICS542MI - 156 MHz 1:2 Clock Buffer | Renesas Electronics

Renesas Electronics ICS542MI is a CMOS clock fanout buffer and divider IC that accepts a clock input up to 156 MHz and produces two clock outputs with divide ratios selected from 2, 4, 6, 8, 12, or 16. The device operates from 3 V to 5.5 V and is supplied in an 8-pin SOIC package measuring 3.90 mm in width. According to the Renesas Electronics 542 datasheet, one output is a low-skew divide-by-two version of the other output. A clock fanout buffer is a timing-device category used to distribute one periodic signal to multiple circuit loads. Clock buffers, sometimes called clock drivers, reproduce a clock with controlled loading, skew, and output characteristics. The ICS542MI combines clock distribution with programmable division, placing it in the hierarchy of clock and timing IC, clock buffer, clock divider, and timing-control semiconductor. The verified operating limit of 156 MHz supports high-speed digital logic, processor interfaces, communications equipment, and clock-tree distribution. Its 3 V to 5.5 V supply range allows use in both 3.3 V and 5 V systems, while CMOS inputs and three-state CMOS outputs support integration with digital clock domains. The exact divider-selection truth table and enable behavior should be verified against the manufacturer datasheet before implementation. Renesas describes the ICS542 as a cost-effective way to generate a high-quality divided clock output. One output provides the selected divided frequency, while the other is described as a low-skew divide-by-two output relative to that clock. This arrangement can reduce fanout loading and provide two related clocks to different downstream circuits without requiring multiple separate divider packages. Typical uses include fanout for digital logic, local clock distribution in communication systems, generation of related clocks for data converters or processors, and systems that need a divided clock alongside a further divided low-skew clock. The 8-SOIC package also makes the ICS542MI suitable for conventional surface-mount PCB layouts where a larger leaded package would be unnecessary. Designers should use short, impedance-controlled clock traces, provide a clean reference clock, and confirm output-state and division-selection requirements from the datasheet. Because the verified snippets do not provide detailed rise time, output impedance, skew, current, temperature, or pin-level thresholds, those values must not be inferred from the frequency and supply limits. This page distinguishes verified specifications from parameters that require confirmation from the manufacturer datasheet.

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ICS542MT - 1:2 Clock Buffer, 156 MHz, 8-SOIC | Renesas
ICS542MT

ICS542MT - 1:2 Clock Buffer, 156 MHz, 8-SOIC | Renesas

The Renesas ICS542MT is a clock fanout buffer and divider IC that accepts a CMOS clock input up to 156 MHz and provides a 1:2 divided clock output with three-state CMOS outputs. It operates from a 3 V to 5.5 V supply and is packaged in an 8-SOIC package measuring 0.154 inch wide and 3.90 mm in length. The ICS542MT is designed for clock distribution, frequency division, and systems where a stable divided clock is required from a higher-frequency source. A clock buffer or clock divider is a timing IC that conditions, distributes, or divides a digital clock signal. In the clock and timing hierarchy, the ICS542MT belongs to the clock buffer and divider family, which supports phase-locked-loop (PLL) based timing architectures, communications equipment, and digital processing systems. A divide-by-two function can reduce the output frequency while preserving a defined relationship to the input clock, while the three-state output structure allows the output to be disabled when it is not needed. The verified device information identifies a maximum frequency of 156 MHz, a 1:2 divide ratio, CMOS input and output signaling, and a 3 V to 5.5 V operating supply range. The manufacturer’s ICS542MT documentation describes the device as a cost-effective way to produce a quality clock output divided from a clock input. This combination makes it suitable for clock generation, timing distribution, and intermediate frequency conversion stages in communication and digital electronics. Because the ICS542MT uses proprietary PLL techniques to produce the divided clock, PCB layout and supply decoupling should be treated as part of the timing design rather than added afterward. Keep the clock input and output traces short, provide a clean ground reference, and place bypass capacitors close to the supply pins. When replacing the part, verify that the alternative has the same SOIC-8 footprint, pin assignments, input/output logic levels, and divide behavior; a similar frequency rating alone does not guarantee drop-in compatibility. Typical application areas include communications and networking clock trees, frequency conversion after an upstream oscillator or PLL, and digital subsystems requiring a locally divided clock. The page combines verified manufacturer and distributor information with practical selection guidance, application notes, and drop-in alternative analysis to help engineers evaluate ICS542MT designs faster.

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ICS551M - 1:4 160MHz CMOS Clock Buffer | Renesas
ICS551M

ICS551M - 1:4 160MHz CMOS Clock Buffer | Renesas

The Renesas Electronics ICS551M is a 1:4 CMOS clock fanout buffer with a 160 MHz maximum operating frequency and a 3 V to 5.5 V supply range, housed in an 8-pin SOIC package. Designed as a low-cost, high-speed clock distribution device, it accepts one CMOS clock input and provides four buffered CMOS outputs, making it suitable for clock fanout in compact digital systems. A clock fanout buffer is a clock-and-timing integrated circuit that distributes one incoming clock signal to multiple downstream loads. Its place in the hierarchy is clock buffer → clock fanout buffer → clock distribution IC → timing and logic semiconductor. The ICS551M helps isolate clock loads from one another, reduces loading on the source clock, and provides separate outputs for multiple sequential or peripheral circuits. This is especially useful when a single oscillator or clock source must feed several logic blocks. Key verified characteristics include a 1:4 fanout ratio, 160 MHz maximum frequency, CMOS input and output technology, and an operating supply range of 3 V to 5.5 V. The 8-SOIC package measures 0.154 inches, or 3.90 mm, in width according to distributor data. These specifications make the device appropriate for general-purpose clock distribution where a compact surface-mount package and moderate operating frequency are sufficient. The ICS551M belongs to the ICS ClockBlocks family and is identified by distributor listings as a low-cost, small clock buffer. Because its outputs are CMOS, the downstream circuits must be compatible with the selected supply voltage and input thresholds. The device is not a PLL, oscillator, or level shifter; its function is specifically clock replication and distribution. Designers should preserve the input and output timing relationship, maintain the required supply decoupling, and account for trace and load differences among the four outputs. Typical applications include clock distribution in embedded control systems, digital logic networks, communications equipment, test and measurement systems, and general-purpose processor or peripheral clocking. For a design that needs more independent clock domains, frequency generation, or differential clock outputs, a different clock-and-timing device may be more appropriate. For applications requiring only one input and four CMOS copies, the ICS551M provides a straightforward distribution function in an established 8-SOIC footprint. The main design consideration is ensuring that every connected load, trace, and voltage domain is compatible with the available 160 MHz clock. Check rise and fall-time requirements, fanout loading, power-supply noise sensitivity, and the clock-source timing margin before production release. This page synthesizes verified distributor specifications, sourcing links, package information, and engineering guidance while leaving unverified values explicitly unresolved. The ICS551M datasheet and application information should be consulted for complete pin functions, electrical limits, timing characteristics, and recommended circuit implementation. Distributor data confirms the core identity and major specifications, but it does not provide enough evidence here to infer undocumented timing, current, or package dimensions.

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ICS551MI - 1:4 160MHz CMOS Clock Buffer | Renesas
ICS551MI

ICS551MI - 1:4 160MHz CMOS Clock Buffer | Renesas

The Renesas Electronics ICS551MI is a low-cost, high-speed 1-input to 4-output CMOS clock fanout buffer rated up to 160 MHz, supplied in an 8-SOIC package. Its principal specifications are a 3 V to 5.5 V supply range, CMOS input and output interfaces, four buffered outputs, and a maximum operating frequency of 160 MHz. The device belongs to the clock and timing IC category and is designed for distributing one clock signal across several digital loads without requiring the source device to drive all loads directly. A clock fanout buffer is a digital timing component that reproduces an input clock at multiple outputs. It sits between a clock source and the circuits requiring that reference, reducing fanout loading and helping isolate each destination from the others. The ICS551MI is specifically described as a low-cost, small clock buffer and is part of the ICS ClockBlocks product family. Its 1:4 topology gives a designer four available clock destinations from one source. The verified feature set emphasizes simplicity rather than advanced configuration. The ICS551MI accepts CMOS logic, produces CMOS outputs, operates from 3 V to 5.5 V, and supports frequencies through 160 MHz. It is not presented as a programmable, differential, low-power, or phase-aligned clock-device family member. That makes it suitable where a conventional single-ended clock must be distributed to multiple conventional CMOS loads. The 8-SOIC package provides a compact surface-mount footprint and exposes the input, outputs, supply, and ground connections needed for a conventional fanout implementation. Its operating characteristics allow operation in both 3.3 V and 5 V system contexts within the stated 3 V to 5.5 V supply range. Designers should still confirm timing, output loading, and temperature requirements against the complete manufacturer datasheet before production release because those detailed values are not present in the retrieved source excerpts. Typical uses include distributing a processor or controller clock to communications logic, digital peripherals, counters, or data-conversion subsystems. In a four-output arrangement, the buffer can feed multiple loads while reducing the electrical burden on the original clock source. Because the outputs are not specified as independently selectable or phase-aligned in the retrieved data, the design should treat them as a conventional fanout network rather than a deterministic multi-clock generator. The primary design consideration is to place the clock buffer close enough to the receiving circuits to limit trace loss and maintain signal integrity. PCB routing should preserve a consistent ground reference, avoid long unterminated stubs, and account for the capacitive loading introduced by each connected output. Supply decoupling and output loading should be verified against the full datasheet and the worst-case clock topology used in the final board. This page consolidates the verified distributor specifications, package information, sourcing links, practical clock-distribution guidance, and honestly identifies missing electrical details. It is intended to help engineers locate the ICS551MI datasheet, compare it with related clock devices, and determine whether its basic 1:4 CMOS fanout function fits the target design.

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ICS551MT - 160 MHz 1:4 CMOS Clock Buffer | Renesas
ICS551MT

ICS551MT - 160 MHz 1:4 CMOS Clock Buffer | Renesas

Renesas ICS551MT is a low-cost, high-speed 1:4 CMOS clock fanout buffer with a maximum operating frequency of 160 MHz, a 3 V to 5.5 V supply range, and an 8-SOIC package. The device accepts one CMOS clock input and provides four buffered CMOS clock outputs, allowing a single source to drive multiple destinations without requiring multiple distribution stages. A clock buffer is a digital timing IC that reproduces a clock signal with controlled loading and drive characteristics. Within the product hierarchy, ICS551MT is a clock fanout buffer, a clock distribution IC, a timing IC, and ultimately a digital semiconductor. Its four-output topology is useful when a processor, controller, communications circuit, or data-conversion system requires several related clock domains that must originate from one low-jitter reference. Key features include 160 MHz maximum frequency, 1:4 fanout capability, CMOS input and output interfaces, and operation from 3 V to 5.5 V. The 8-SOIC package supports conventional surface-mount assembly while keeping the board footprint compact. The manufacturer identifies the ICS551 family as a low-cost, small clock-buffer option within the Clock Blocks family. The IC provides four independently usable outputs rather than requiring a cascading buffer arrangement. Each output can therefore feed a separate circuit, reducing distribution complexity and avoiding the need to reproduce the source clock multiple times. The exact output rise time, output skew, input-output delay, propagation delay, and operating-temperature limits are not disclosed in the supplied verified data and should be confirmed in the Renesas 551 datasheet before a timing-critical design is released. Typical uses include general-purpose clock distribution in embedded systems, communications equipment, industrial control electronics, and consumer or computing subsystems. The single-input, four-output organization is particularly helpful where four loads share a common clock source and the PCB requires short, controlled clock routes rather than a long point-to-point connection. Designers should place the 0.01 uF VDD decoupling capacitor between pin 7 and pin 6 as close as possible to the device, following the Renesas 551 datasheet. The same source recommends an optional 33 ohm series termination resistor on each clock output when the trace exceeds 1 inch, helping control reflections on longer PCB interconnects. This page consolidates the verified distributor specifications, official application guidance, package details, pricing availability status, and engineering trade-offs for ICS551MT. It distinguishes documented electrical facts from parameters that still require confirmation, helping engineers make faster sourcing and design decisions without inventing missing timing or environmental data.

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