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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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ICS553MI - 1:4 200 MHz Clock Buffer | Renesas Electronics
ICS553MI

ICS553MI - 1:4 200 MHz Clock Buffer | Renesas Electronics

Renesas Electronics ICS553MI is a low-skew 1:4 clock fanout buffer with a maximum operating frequency of 200 MHz, CMOS inputs and outputs, a 2.375 V to 5.25 V supply range, and an 8-SOIC package measuring 0.154 inch, or 3.90 mm, in width. It is positioned as the lowest-skew, small clock buffer in the ICS ClockBlocks family. A clock fanout buffer is a clock-management IC that receives one periodic signal and distributes multiple synchronized copies to several destinations. The ICS553MI belongs to the fanout buffer subclass of clock and timing ICs, within the broader clock-buffer, clock-driver, and clock-management semiconductor hierarchy. Its 1:4 fanout ratio makes it suitable where one source must feed four loads without redesigning the clock tree. The primary verified specifications are a 1:4 fanout ratio, 200 MHz maximum frequency, CMOS input and output interfaces, and a 2.375 V minimum operating supply voltage with a 5.25 V maximum. The 8-SOIC package supports conventional surface-mount assembly while providing four buffered outputs. These details distinguish it from single-output clock devices, lower-frequency buffers, and devices requiring more than four outputs. The low-skew architecture is intended to minimize output-to-output timing displacement, making the device relevant to synchronous systems in which downstream circuits require closely related clock edges. Exact propagation delay, output-to-output skew, rise time, fall time, output impedance, and input pulse-width limits are not present in the supplied verified data and should be taken from the manufacturer datasheet before timing closure. Typical uses include processor and FPGA clock distribution, communications-interface clock fanout, data-converter clocking, memory-interface timing, and general-purpose digital clock-tree branching. In each case, the single input can feed four destinations while the 200 MHz operating limit defines the upper frequency envelope. The CMOS interfaces also allow the device to operate across a 2.375 V to 5.25 V supply range, subject to the input and output voltage limits in the datasheet. The principal design consideration is timing verification. Engineers should check the worst-case input-to-output and output-to-output skew across process, voltage, and temperature, rather than relying only on the 200 MHz headline frequency. Supply decoupling, input slew rate, trace loading, and the number of clock destinations also require review because they affect edge quality and timing margin. This page consolidates the verified manufacturer and distributor information, distinguishes confirmed specifications from unavailable data, and documents practical clock-tree considerations. It also explains the absence of verified drop-in substitutes so engineers can avoid assuming that a shared package or similar frequency rating guarantees pin-to-pin compatibility.

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ICS570A - 170MHz Zero Delay Buffer | Renesas | Clocking
ICS570A

ICS570A - 170MHz Zero Delay Buffer | Renesas | Clocking

The Renesas Electronics ICS570A is a multiplier and zero-delay buffer clock IC designed for 5 V systems, with a maximum output clock frequency of 170 MHz and an 8-pin SOIC package. It combines clock multiplication, fanout distribution, and zero-delay buffering in one device, making it suitable for systems that need multiple related clock outputs without adding substantial propagation delay. According to the manufacturer datasheet information, the A version is intended for 5 V designs and the B version is intended for 3.3 V designs. A zero-delay buffer is a clock-integrity device that reproduces an input clock at one or more outputs while compensating for internal propagation delay through a phase-locked-loop technique. ICS570A uses Integrated Circuit Systems proprietary analog/digital PLL techniques, allowing the device to provide low input-to-output skew while distributing or multiplying the source clock. The part is therefore positioned between a clock source and the digital circuits, processors, or memory that require synchronized clock signals. Key documented features include support for 14 multiplier choices from 0.5x to 32x, output clock frequency up to 170 MHz at 5 V, and the ability to recover degraded input clock duty cycle. The listed low input-to-output skew is 300 ps maximum for outputs above 60 MHz. The device is also identified as functionally equivalent to the AV9170, although the manufacturer explicitly notes that the AV9170 is not a pin-for-pin replacement. Typical uses include processor and controller clock generation, communication-system clock distribution, memory clocking, retrofit or modernization of older clock architectures, and any board requiring a multiplied or buffered reference clock. The ICS570A should be selected when the surrounding circuit requires a 5 V zero-delay buffer and an 8-pin SOIC footprint. The B version or another device should be considered when the system operates from 3.3 V, because the A and B versions target different supply voltages. Designers should preserve the manufacturer's recommended input, output, termination, and load conditions. Clock jitter and skew tables depend on the termination resistance and load capacitance, so a replacement must be checked against the original clock topology rather than selected only by package. This page combines the verified manufacturer and distributor information with a conservative drop-in assessment, clearly separating confirmed replacements from parts that are only functionally equivalent.

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ICS570B - 170 MHz 3.3 V PLL Clock Buffer | Renesas
ICS570B

ICS570B - 170 MHz 3.3 V PLL Clock Buffer | Renesas

The Renesas Electronics ICS570B is a 3.3 V fanout distribution, spread-spectrum clock generator and zero-delay buffer (ZDB) that provides a maximum output clock frequency of 170 MHz in an 8-pin SOIC package. It combines a proprietary analog/digital phase-locked loop with clock multiplication, fanout, duty-cycle correction and low-skew output buffering for systems that require multiple related clocks. A zero-delay buffer is a clock-integrity device that uses phase-locked-loop techniques to reproduce an input clock at its outputs with very small propagation delay relative to the source clock. It belongs to the clock and timing hierarchy of clock generators, PLL multipliers, fanout buffers, clock drivers and zero-delay buffers. The ICS570B is intended for systems where several logic domains require related clocks without introducing significant inter-clock skew. The ICS570B supports output clock frequencies up to 170 MHz at 3.3 V and can select between 14 multiplication ratios from 0.5x to 32x. It also includes fanout distribution, spread-spectrum clock generation and the ability to recover a degraded input-clock duty cycle. The maximum input-to-output skew is 300 ps for output rates above 60 MHz, making it useful for high-speed communications, storage, networking and processor clock trees. Internally, the device uses analog/digital PLL techniques rather than a simple static clock buffer. This architecture allows one reference clock to be multiplied and distributed while limiting output-to-output skew. The published family information also identifies the B version as the 3.3 V option and the A version as the 5 V option, making supply-voltage compatibility a critical selection criterion when comparing family members. Typical uses include frequency multiplication for a CPU or bus clock, fanout to multiple peripheral clock domains, spread-spectrum clock generation for reducing electromagnetic interference, and duty-cycle restoration of a degraded source clock. The 8-pin SOIC package supports conventional surface-mount assembly and keeps the footprint compact for clock-distribution sections on communication, industrial and computing boards. Designers should verify the input and output reference clock requirements, the selected multiplication ratio, output termination and load capacitance against the Renesas 570 datasheet before layout. Keep clock traces short and match trace lengths where output-to-output skew is critical. Provide a continuous ground reference under the device and place decoupling capacitors close to the supply pins. This page consolidates verified manufacturer and distributor information, published price references, family-level drop-in options and practical clock-tree design guidance. It also identifies where application-specific data, such as exact supply current, temperature range and production lifecycle status, must be confirmed against current manufacturer documentation.

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ICS571M - 160MHz Zero Delay Buffer | Renesas Electronics
ICS571M

ICS571M - 160MHz Zero Delay Buffer | Renesas Electronics

Renesas Electronics ICS571M is a 160 MHz fanout distribution zero-delay buffer IC packaged in an 8-pin SOIC measuring 3.90 mm wide. It is designed for clock distribution applications where a source signal must be reproduced across multiple destinations while minimizing propagation delay. The verified distributor listing identifies the device as a one-output fanout buffer with zero-delay characteristics. A zero-delay buffer belongs to the clock and timing IC hierarchy. Unlike a conventional logic buffer, which introduces a specified propagation delay, this device uses an internal buffer arrangement intended to preserve clock-edge timing between the driving source and distributed loads. Fanout buffers are used to reduce loading on a clock generator, isolate multiple destinations, and provide a repeatable distribution point on clock, data, or control networks. The principal verified characteristics are a maximum clock frequency of 160 MHz, one fanout output, and an 8-SOIC surface-mount package with a stated width of 3.90 mm. The distributor data also classifies ICS571M under Clock Generators, PLLs, and Frequency Synthesizers, reflecting its primary use within clock and timing systems. Detailed supply-voltage, output-impedance, skew, jitter, and temperature limits were not present in the supplied verified records. ICS571M is suited to communication equipment, processor clock networks, data converters, instrumentation, and industrial electronics requiring local clock distribution. Its small SOIC outline supports compact designs, while the zero-delay architecture can be preferable when an upstream source must drive several clocked loads without intentionally adding another propagation-delay stage. Designers should verify input slew rate, output loading, supply voltage, and timing margins against the manufacturer datasheet before release. Decoupling and return-path planning remain important because a clock buffer can reproduce upstream supply noise and edge distortion at every distributed output. PCB length matching may also be required in systems with stringent setup-and-hold limits. This product record consolidates verified distributor specifications, sourcing links, practical application guidance, and honest data-gap disclosures. It also distinguishes confirmed parameters from values that require datasheet review, helping engineers make a technically defensible selection without treating unverified electrical limits as guaranteed specifications.

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ICS574M - 160MHz 1:4 PLL Zero-Delay Buffer | Renesas
ICS574M

ICS574M - 160MHz 1:4 PLL Zero-Delay Buffer | Renesas

Renesas Electronics ICS574M is a PLL-based 1:4 fanout and zero-delay buffer rated up to 160 MHz, with CMOS inputs and CMOS clock outputs in an 8-SOIC surface-mount package. The device contains one clock circuit, uses a 1:4 input-to-output ratio, and provides four low-skew outputs for high-speed clock-distribution systems. Its operating-temperature range is 0°C to 70°C, and supplier records identify the part as obsolete or end-of-life. A zero-delay buffer is a clock and timing IC that combines a phase-locked loop with multiple output stages. Within the product hierarchy, it belongs to clock distribution devices, which are part of clock and timing integrated circuits and ultimately semiconductor signal-management components. By compensating for internal propagation delay while distributing one source clock across four outputs, this type of device helps maintain controlled timing relationships across multiple digital loads. The primary characteristics of the ICS574M are its 160 MHz maximum operating frequency, 1:4 input-to-output fanout, CMOS logic compatibility, and PLL-based zero-delay operation. Four independently available clock outputs make the device suitable where one incoming reference must drive several clock domains while limiting output-to-output timing skew. The 8-SOIC package provides a compact surface-mount format with a stated body width of 3.90 mm and lead pitch of 0.154 inches. Technically, the PLL-based architecture is intended to reduce propagation delay and skew across distributed outputs. The verified device information identifies the input and output technology as CMOS and confirms that PLL operation is supported. Detailed electrical limits, supply-voltage operating range, output-to-output skew, input-to-output delay, operating-current consumption, and timing tolerances are not available in the supplied source data and therefore require confirmation against the original manufacturer datasheet before release to production. Typical uses include processor and peripheral clock distribution, data-processing systems, communications equipment, test systems, and other high-speed digital platforms requiring one reference clock to feed four destinations. Because the ICS574M is listed as obsolete, engineers should confirm the available lifecycle status, remaining supply, and any formal last-time-buy or end-of-life schedule with the authorized distributor. The primary design consideration is timing closure. Board traces must be length- and impedance-matched when the four outputs must arrive at their destinations within a tightly controlled interval. Decoupling, grounding, and output loading should follow the original datasheet guidance, while any substitute must be checked for pin assignment, supply voltage, frequency ceiling, skew, and output enable behavior rather than package name alone. This product record combines verified distributor specifications, lifecycle evidence, package information, and practical replacement guidance. It distinguishes documented electrical facts from unavailable parameters, helping engineers identify whether the original ICS574M remains suitable or whether a redesign is required.

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ICS613M - Low Phase Noise Clock Multiplier | Renesas
ICS613M

ICS613M - Low Phase Noise Clock Multiplier | Renesas

The Renesas Electronics ICS613M is a low-cost, low-phase-noise, high-performance clock synthesizer and clock multiplier in a 16-pin SOIC package. It is positioned for applications requiring low phase noise and low jitter, and the manufacturer describes it as the ICS family's lowest-phase-noise multiplier. The ICS613M belongs to the clock synthesizer and PLL frequency-synthesizer segment of the broader clock and timing IC category. A clock multiplier is a timing IC that derives one or more higher-frequency clock outputs from a lower-frequency reference input. By multiplying the reference frequency while preserving low phase noise, this type of device can support clock trees, communication interfaces, digital processing systems, and mixed-signal equipment. In the electronics hierarchy, the ICS613M is a clock synthesizer, then a clock and timing IC, then an integrated circuit and semiconductor. The primary verified feature of the ICS613M is its low phase-noise performance. Low phase noise is important when clock timing jitter can degrade signal integrity, reduce usable timing margin, or increase data-conversion errors. Its low-cost positioning also makes it relevant to designs that require stable frequency generation without selecting a higher-cost premium clock-generation solution. The available technical data does not provide a numerical phase-noise, jitter, frequency, or supply-voltage rating. The ICS613M is identified as the lowest-phase-noise multiplier within the ICS family, indicating that its clock multiplication architecture was optimized specifically for phase-noise-sensitive designs. Clock multiplication can reduce the need for multiple independent oscillators and allows a system to derive related timing signals from a common reference. Designers must still account for loop stability, reference quality, output-load capacitance, and the multiplication ratio required by the target system when evaluating the device. Typical applications include communications infrastructure, digital signal processing platforms, instrumentation, industrial control systems, and clock-tree generation where a common reference must be converted into additional timing domains. The 16-pin SOIC package supports conventional surface-mount PCB assembly and is suitable for designs that do not require a specialized leadless package. Exact frequency, supply, output, and stability limits must be confirmed from the complete manufacturer datasheet before schematic release. The principal design consideration is verification of operating conditions. The visible verified data confirms the device category, low-phase-noise positioning, clock-multiplier function, and 16-pin SOIC package, but it does not expose the electrical tables needed to select compensation, loop, decoupling, or output components. A design should therefore preserve the 16-pin footprint only after checking the complete pin assignment and confirming all required frequency ratios. This product record consolidates verified distributor availability, manufacturer-described clock performance, package information, application guidance, and honest data gaps into one engineering-oriented resource. It also distinguishes confirmed facts from parameters that still require the full Renesas or legacy ICS datasheet, helping teams accelerate sourcing without turning incomplete search results into unsupported design assumptions.

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ICS621MI - 1:4 200MHz Low-Skew Clock Buffer | Renesas
ICS621MI

ICS621MI - 1:4 200MHz Low-Skew Clock Buffer | Renesas

Renesas Electronics ICS621MI is a low-skew 1-to-4 clock fanout buffer rated for 200 MHz operation and supplied in an 8-pin SOIC package measuring 0.154 inch, or 3.90 mm, in body width. The device provides one clock input and four buffered clock outputs for distributing a common timing signal across multiple circuit loads. According to the verified manufacturer and distributor information, its operating supply range is 1 V to 1.8 V, while its input is tolerant of 3.3 V signals. This combination allows it to be used in mixed-voltage clock-distribution networks where a lower-voltage core or peripheral must be driven from a higher-voltage clock source. A clock buffer is a digital timing IC that reproduces an input clock onto multiple outputs. It belongs to the clock and timing hierarchy, alongside clock generators, dividers, multiplexers, and phase-shifting circuits, and is used within digital logic and communications equipment. Unlike a PLL-based clock generator, the ICS621MI does not create a new frequency; its purpose is to fan out one source while limiting skew between destinations. That makes it useful when several sequential circuits must receive related clock edges and when added routing distance could otherwise distort arrival timing. The verified headline specifications are a 1:4 fanout ratio, a maximum indicated operating frequency of 200 MHz, a 1 V to 1.8 V supply range, 3.3 V tolerant input, low-skew operation, and an 8-SOIC package. The 3.3 V tolerant input is particularly useful at system interfaces because it permits a 3.3 V-domain clock source to feed the buffer without a separate input translator. The low-voltage 1 V to 1.8 V operating range suits modern high-performance digital cores requiring compact, low-power clock distribution. The primary engineering benefit is the relationship between fanout and timing control. One source clock is distributed to four outputs rather than being connected to four loads directly. The buffer isolates the source from downstream capacitive loading and provides matched output paths intended to reduce output-to-output skew. Because the available verified material does not publish a numeric skew value, input capacitance, output rise or fall time, or propagation-delay tolerance, those characteristics should be obtained from the manufacturer datasheet before relying on a margin in a timing-critical design. Typical applications include high-speed digital logic, processor clock distribution, communications equipment, memory interfaces, and general-purpose fanout of a board-level or module-level clock. In each case, the designer must ensure that the source remains within the specified frequency, power-supply voltage, and input-signal limits. Decoupling close to the supply pins and short, impedance-controlled clock routes are also important because package and board parasitics can affect edge quality even when the nominal fanout and frequency ratings are satisfied. A key design consideration is that pin-compatible does not always mean timing-identical. Before substituting another fanout buffer, verify package dimensions, input and output pin positions, supply range, output-drive capability, propagation delay, output skew, operating temperature, and the definition of the enable or output-control behavior. These checks are especially important when the replacement operates from a different voltage range or has different edge-rate characteristics. This page combines the verified distributor data, package information, interface capabilities, and application guidance into a focused engineering reference for the ICS621MI.

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ICS651M - 1:4 200MHz Clock Fanout Buffer | Renesas
ICS651M

ICS651M - 1:4 200MHz Clock Fanout Buffer | Renesas

The Renesas Electronics ICS651M is a 1:4 clock fanout buffer distribution IC designed for clock signals up to 200 MHz, supplied from 1.425 V to 2.625 V and packaged in an 8-SOIC. Its single clock input feeds four clock outputs, making it useful when several digital subsystems must receive a common timing reference. A clock fanout buffer is a clock and timing IC that reproduces one input clock across multiple outputs. It belongs to the clock distribution hierarchy, where a buffer preserves edge-driven timing while increasing fanout, isolating source loading, and giving short, controlled routes to multiple receivers. Unlike a frequency-changing oscillator or PLL, the ICS651M does not create a new frequency; it distributes the supplied clock and is intended to maintain low-skew operation. The principal verified features are the 1:4 fanout ratio, 200 MHz maximum operating frequency, clock input and clock outputs, and 1.425 V to 2.625 V supply range. The 8-SOIC package measures 0.154 inches, or 3.90 mm, in width. These values position the part as a compact, low-voltage clock distribution solution where four copies of one clock are required rather than programmable or multiplied clock synthesis. Use the ICS651M after a stable clock source when the next circuit stages would otherwise load a single output excessively or require long branches to remote logic. Equalizing trace geometry and keeping the input and output return paths close to a continuous ground plane can help control propagation-delay differences among outputs. Engineers must also verify downstream input thresholds, output timing at the actual operating frequency, and termination requirements for each clock network. Typical uses include coordinating clock domains in processors, FPGAs, communications equipment, test systems, and digital control logic. The device may be particularly useful where one low-voltage master clock must reach four independent loads without repeatedly branching a long net. Because its verified maximum frequency is 200 MHz, timing margins should be evaluated at the highest intended edge rate rather than relying only on the nominal operating frequency. Place all four clock outputs into controlled PCB routes, avoid long stub traces, and provide a low-impedance return path beneath every clock edge. If unused outputs are left unconnected, their exact treatment should be confirmed from the manufacturer datasheet. Decoupling, output enable, and input-standby behavior were not included in the supplied search evidence and must be checked before layout approval. This page consolidates verified distributor specifications, sourcing links, application context, and design cautions. Where primary documentation was unavailable in the supplied data, unknown electrical details remain explicitly marked rather than being estimated.

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ICS651MI - 1:4 200 MHz Clock Fanout Buffer | Renesas Electronics
ICS651MI

ICS651MI - 1:4 200 MHz Clock Fanout Buffer | Renesas Electronics

The Renesas Electronics ICS651MI is a low-skew, single-input to four-output clock fanout buffer rated for operation up to 200 MHz, supplied in an 8-SOIC package. Its 1:4 fanout ratio provides one clock distribution function for driving four downstream destinations, while its 1.425 V to 2.625 V supply range supports low-voltage digital clocking systems. The verified distributor and technical listings identify the device as a Clock Fanout Buffer (Distribution) IC with clock input and clock outputs. A clock fanout buffer is a clock-and-timing IC that receives one periodic signal and produces multiple buffered copies. It belongs to the broader clock-buffer and clock-driver hierarchy, where buffers are used to extend fanout, isolate a source from downstream loading, reduce edge-rate degradation, and distribute a common timing reference. The ICS651MI therefore serves as an interface between a clock source and several digital loads rather than as a frequency-generating or phase-locked-loop device. The principal verified specifications are a 1:4 fanout ratio, a maximum operating frequency of 200 MHz, a 1.425 V to 2.625 V supply-voltage range, and an 8-SOIC package measuring 3.90 mm in width. The low-skew description indicates that the device is intended to preserve close timing relationships among its four outputs. This makes it potentially useful in communications, processor systems, test equipment, and other clocked digital equipment when one source must feed several destinations. The ICS651MI uses a clock input and four clock outputs, providing eight functional connections in the 8-SOIC package. The public search results supplied for this product do not expose the complete numbered pin assignments, enable controls, output-drive strength, propagation-delay limits, or detailed electrical characteristics. Those values must therefore be confirmed against the manufacturer datasheet before layout or timing-signoff work. Renesas provides an official ICS651MI family datasheet page at the URL included in this record. Typical applications include four-way clock distribution within communications equipment, fanout for processor or logic clock trees, clock buffering in industrial control systems, and synchronized distribution to multiple digital peripherals. In each case, the 200 MHz maximum frequency and four outputs are the main selection criteria. The designer should also verify input and output capacitance, supply tolerance, output enable behavior, and package-level timing data because those details are not present in the verified excerpts supplied here. A key design consideration is that a buffer does not remove all timing uncertainty from the downstream system. Trace lengths, load capacitance, supply noise, and clock-tree topology can still affect edge arrival times. Place the buffer close to the clock source, keep output routing topology consistent where skew matters, and use controlled-impedance routing when outputs drive transmission lines. Confirm that every downstream receiver meets the available amplitude, slew-rate, and timing requirements at the selected operating frequency. This page consolidates the verified distributor listings, manufacturer datasheet reference, package information, electrical envelope, and practical selection considerations for ICS651MI. It also distinguishes directly verified facts from unavailable electrical details and avoids presenting unverified cross-references as drop-in replacements. The resulting guidance is intended to support initial design selection, sourcing, and datasheet review without substituting for schematic-level timing and signal-integrity validation.

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ICS651MT - 200MHz 1:4 Clock Buffer | Renesas | 8-SOIC
ICS651MT

ICS651MT - 200MHz 1:4 Clock Buffer | Renesas | 8-SOIC

The Renesas Electronics ICS651MT is a 1:4 fanout clock buffer with a maximum operating frequency of 200 MHz, a 1.425 V to 2.625 V supply-voltage range, and an 8-pin SOIC package. The device accepts one clock input and provides four buffered clock outputs, making it suitable for distributing a low-frequency clock across multiple digital, communications, or embedded-system loads. A clock buffer, also called a clock driver or fanout buffer, is a digital timing IC that reproduces an input clock onto multiple outputs with controlled propagation delay and low output-to-output skew. Clock buffers belong to the clock and timing hierarchy, alongside clock generators, phase-locked loops, jitter cleaners, dividers, and delay lines. Their purpose is to restore signal integrity, isolate the source from capacitive loading, and provide matched clock branches in systems where a single clock cannot directly drive every destination. The ICS651MT is identified as a low-skew, single-input, four-output clock buffer in the ICS ClockBlocks family. Verified specifications list a maximum frequency of 200 MHz, a 1.425 V to 2.625 V supply range, 250 ps skew, and a commercial operating-temperature range of 0 C to 70 C. Its four-output architecture supports economical distribution without implementing four separate discrete buffers. The SOIC-8 package also supports conventional surface-mount manufacturing and inspection processes. Operationally, the buffer preserves the clock waveform while adding fanout capability. The verified datasheet guidance specifies a 0.01 uF decoupling capacitor between VDD on pin 7 and GND on pin 6, placed as close to the device as possible. It also states that a 33 ohm series terminating resistor may be used on each clock output when the trace is longer than 1 inch. These recommendations reduce supply-noise coupling, ringing, and reflections on longer clock routes. Typical uses include processor-clock distribution in embedded equipment, communication-interface clock fanout, general-purpose logic clock distribution, and fanout for digital converters or controllers. Because this is a four-output buffer rather than a clock generator, an external clock source is required. The source must provide a valid clock waveform within the device's specified frequency and supply-voltage limits, and each connected load must be checked for timing margin. The primary design trade-off is output loading versus timing margin. Short, lightly loaded traces may not need source termination, while long PCB routes can develop edge reflections that reduce setup and hold margin. Place the decoupling capacitor at the supply pins, use short output branches, and evaluate rise time, fanout, and skew at the actual operating frequency before releasing the layout. This product page consolidates the verified clock-buffer specifications, application guidance, comparison fields, and practical implementation notes. It distinguishes documented electrical and packaging data from unavailable lifecycle, pricing, and pinout details so engineers can make sourcing decisions without treating unverified values as established facts.

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ICS663M - 120MHz PLL Clock Synthesizer | Renesas Electronics
ICS663M

ICS663M - 120MHz PLL Clock Synthesizer | Renesas Electronics

Renesas Electronics ICS663M is a single-circuit phase-locked-loop clock synthesizer with a maximum operating frequency of 120 MHz, a 1:1 input-to-output ratio, and CMOS clock output. The device is supplied in an 8-SOIC surface-mount package measuring 3.90 mm wide and is listed for operation from 3.13 V to 5.5 V. A phase-locked loop, or PLL, is a frequency-control building block that locks an internally generated or controlled clock to a reference signal. Within the clock and timing hierarchy, the ICS663M functions as a PLL building block combining a phase detector, charge pump, voltage-controlled oscillator, and output buffer. This allows an external timing loop to synthesize or synchronize a stable CMOS clock rather than relying only on a free-running oscillator. The verified product information identifies the ICS663M as a low-cost PLL intended for clock synthesis and synchronization. Its principal documented parameters include one PLL circuit, one clock input, one CMOS output, no differential input or output, a 1:1 input-to-output division ratio, and operation up to 120 MHz. The 8-SOIC package provides a compact surface-mount option for clock-generation and timing circuits. The PLL architecture makes external loop filtering an important part of the application circuit. External components can establish loop bandwidth, damping, and phase-error behavior, which influence jitter, acquisition time, and reference-clock rejection. Actual performance therefore depends on the external loop network, reference frequency, output loading, supply quality, and board layout rather than only on the nominal 120 MHz maximum. Typical applications include reference-clock multiplication, synchronization of communications equipment, generation of a derived system clock, and recovery or conditioning of a timing signal. The ICS663M is also suitable for industrial instrumentation, test equipment, and embedded systems that require a phase-locked CMOS clock but do not require a highly integrated programmable clock generator. Designers should provide stable supply and reference-clock connections, follow the manufacturer’s recommended loop-filter topology, and use short return paths for clock and ground. Because an 8-SOIC footprint is compact, trace geometry and capacitance control become important when maintaining signal integrity at higher clock rates. This page combines verified distributor and manufacturer-linked product information with practical PLL design guidance, transparent comparison data, and availability details. It distinguishes documented parameters from engineering values that still require confirmation from the Renesas datasheet before schematic release or production qualification.

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ICS722M - 28MHz 3.3V CMOS VCXO | Renesas Electronics
ICS722M

ICS722M - 28MHz 3.3V CMOS VCXO | Renesas Electronics

Renesas Electronics ICS722M is a 28 MHz voltage-controlled crystal oscillator, or VCXO, with a 3.3 V power supply, CMOS output, and 8-pin SOIC surface-mount package. The device is a low-cost, low-jitter oscillator intended to replace discrete VCXO modules while providing integrated frequency-control functionality in a compact surface-mount footprint. Its nominal operating frequency is 28 MHz, with source material also identifying the product as a 27 MHz-class VCXO; the exact nominal-frequency wording should therefore be confirmed against the manufacturer datasheet before release. A voltage-controlled crystal oscillator is a frequency-control IC built around a crystal resonator and an adjustable oscillator circuit. A VCXO belongs to the broader oscillator hierarchy, which includes crystal oscillators, frequency dividers, clock generators, phase-locked loops, and timing ICs. Unlike a fixed-frequency crystal oscillator, a VCXO permits its output frequency to be adjusted within a manufacturer-specified control range, making it useful when small frequency corrections are required for clock synchronization, filtering, or signal conversion. The supplied product information identifies the ICS722M as a low-cost, low-jitter, high-performance 3.3 V VCXO with a CMOS output. It is available in an 8-SOIC package and is listed in tube packaging by one distributor. Its single-oscillator architecture supports applications requiring one independently adjustable clock rather than a multi-output PLL or clock-generator network. The 3.3 V supply operation also allows integration with 3.3 V CMOS logic without a level-shifting stage when the associated interface voltage levels are compatible. The IC accepts a crystal input according to the distributor specification summary and produces one CMOS clock output. This arrangement separates the stable resonant element from the voltage-controlled oscillator circuitry, supporting accurate frequency generation with electrical tuning capability. The exact tuning range, control sensitivity, initial frequency accuracy, temperature stability, RMS jitter, operating-temperature range, output load requirements, and supply-current limits are not stated in the supplied source data and must be obtained from the manufacturer datasheet before production design. Typical uses include communications-clock recovery, frequency conversion, tunable oscillator modules, digital signal-processing clock trees, and embedded systems that need a small frequency adjustment around a crystal reference. In such designs, the control voltage should remain within the datasheet-specified tuning range, and the output must be properly terminated for reliable CMOS rise and fall times. The compact SOIC-8 package also makes the device suitable for lead-free surface-mount assembly, subject to the manufacturer’s recommended reflow profile and package qualification data. The primary design consideration is that voltage-controlled frequency adjustment is not interchangeable with wholesale frequency synthesis. The ICS722M offers a tuning function around its crystal frequency, whereas a PLL-based clock generator provides programmable multiplication and division. Engineers should compare pull range, sensitivity, jitter, phase noise, supply noise rejection, and load capacitance against the timing budget rather than selecting only by the 28 MHz headline frequency. This page consolidates distributor inventory, package, voltage, output, and oscillator-class information with a traceable source list, practical application guidance, and clearly documented data gaps. It also distinguishes verified product facts from parameters that require confirmation from the Renesas or original IDT manufacturer datasheet.

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ICS728M Clock & Timing IC | Technical Overview
ICS728M

ICS728M Clock & Timing IC | Technical Overview

The Renesas Electronics ICS728M is an integrated clock and timing component associated with the ICS family of timing ICs. The supplied verification data did not include a manufacturer datasheet, product page, distributor listing, or confirmed technical parameter table, so its operating frequency, supply voltage, output configuration, package, pinout, and lifecycle status cannot be stated responsibly. This page therefore distinguishes confirmed identification from parameters that still require manufacturer-document verification. A clock and timing IC is an integrated circuit used to generate, distribute, condition, or select clock signals within electronic systems. Such devices belong to the semiconductor hierarchy and ultimately support digital logic, communications, industrial control, consumer equipment, and data-processing systems. An ICS-series timing device may provide multiple outputs, programmable frequencies, low-jitter operation, or specific clock-generation functions, but no verified evidence in the supplied dataset establishes which capabilities apply to the ICS728M. The primary engineering parameters to verify include the nominal input reference frequency, supported output frequencies, number and type of output clocks, supply-voltage range, jitter performance, temperature range, and package dimensions. Because none of these values were returned by the failed real-time search, this record does not infer them from similarly named ICS devices. Obtain the manufacturer datasheet and ordering information before sizing decoupling, setting filtering components, or designing a replacement board. Clock-integrity analysis also depends on whether the device is intended as a source, a jitter cleaner, a buffer, a synthesizer, or a distribution element. The verified results contained no functional block diagram or application circuit, so the exact architecture and supported use cases remain unconfirmed. Engineers should review the recommended reference circuit, output-load limits, termination guidance, and power-supply sequencing requirements directly in the applicable manufacturer documentation. Potential design locations for a clock and timing IC include processor clocking, communication-interface timing, data-conversion systems, and embedded control platforms. These are category-level use cases only and are not a claim that the ICS728M supports every listed architecture. Final suitability must be established by matching the verified clock-frequency range, supply rails, I/O standards, jitter budget, package footprint, and environmental requirements to the target design. The most important design precaution is to avoid assuming pin compatibility from the MPN suffix alone. Before procurement or substitution, verify the exact package marking, lead assignments, exposed-pad requirements, maximum supply voltage, output drive, and reference-circuit values. A same-family name or similar distributor listing is not sufficient evidence of a drop-in replacement. This record adds information beyond an unstructured search-result list by documenting the verification gap, the parameters required for engineering review, and the evidence needed before selecting alternatives. It also supports honest procurement comparisons without presenting unverified clock specifications, prices, pin assignments, or drop-in claims as fact.

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IDTADC0801S040TS-C18 - 8-bit 40MSPS ADC, 20-SSOP | Renesas
IDTADC0801S040TS-C18

IDTADC0801S040TS-C18 - 8-bit 40MSPS ADC, 20-SSOP | Renesas

The Renesas (formerly IDT) IDTADC0801S040TS-C18 is a single-channel 8-bit analog-to-digital converter (ADC) supporting sampling rates up to 40 MSPS, packaged in a 20-pin SSOP with an exposed thermal pad. The -C18 suffix denotes the standard commercial temperature grade and RoHS-compliant lead-free finish, while the integrated flash topology delivers single-cycle conversion latency suitable for real-time signal acquisition. An ADC (Analog-to-Digital Converter) is a data-acquisition integrated circuit that samples continuous analog input voltages and converts them into discrete digital codes, enabling microcontrollers, DSPs, or FPGAs to process real-world sensor signals. Flash ADCs sit at the low-resolution/high-speed end of the converter taxonomy (flash -> successive-approximation -> pipeline -> sigma-delta), trading bit-depth for the shortest possible latency, which is why 8-bit flash parts remain popular in video, IF-sampling, and oversampling receiver front-ends. Key features include 8-bit resolution, 40 MSPS maximum sampling rate, single-channel analog input, ultra-low-power operation per the datasheet description, parallel CMOS-compatible output interface, and an internal reference structure that simplifies external BOM. The 20-SSOP package offers a compact footprint for space-constrained PCBs while still providing moderate thermal performance for industrial signal chains. The device uses a flash-style comparator array with proprietary IDT/Renesas architecture, allowing direct digitisation of intermediate-frequency (IF) or baseband signals without complex front-end conditioning. Designers benefit from single-clock-cycle conversion latency, simplifying digital down-streaming and digital-AGC design in software-defined radio and instrumentation. Typical applications include video digitisation, ultrasound front-end signal chains, digital oscilloscope input stages, IF-sampling in communications receivers, and low-resolution sensor digitisation in industrial automation. Designers should follow the Renesas datasheet for input drive network, reference decoupling, and clock-jitter budgeting; the datasheet states the converter's specified ENOB and SNR figures depend on proper analogue input layout. When designing with this device, prioritise a low-jitter clock source and short, impedance-controlled analogue input traces to preserve SNR. The integrated reference network reduces external component count but designers must follow datasheet-recommended decoupling on REFCAP and supply pins to achieve published distortion specs. This page synthesises distributor pricing, drop-in alternatives sourced from the Renesas portfolio, and practical design notes that go beyond the raw datasheet, helping engineers evaluate IDTADC0801S040TS-C18 against modern alternatives for both new designs and legacy board refreshes.

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IDTADC0804S030TS-C18 - 8-bit 30 MSPS ADC, 28-SSOP | Renesas
IDTADC0804S030TS-C18

IDTADC0804S030TS-C18 - 8-bit 30 MSPS ADC, 28-SSOP | Renesas

The Renesas (formerly IDT) IDTADC0804S030TS-C18 is a single-channel, 8-bit, high-speed, low-power analog-to-digital converter from the ADC0804S030/040/050 family, capable of sampling rates up to 30 MHz (40 MHz and 50 MHz siblings are pin-compatible). Housed in a 28-pin SSOP package, it uses a flash conversion architecture to deliver sub-microsecond conversion latency suitable for video, IF sampling, and high-speed instrumentation front ends. A flash ADC (sometimes called a parallel ADC) is a class of analog-to-digital converter that uses a bank of 2^(N)-1 comparators to resolve an N-bit sample in a single clock cycle. Flash converters sit at the bottom of the ADC taxonomy (flash ADC -> high-speed ADC -> data converter -> mixed-signal IC -> semiconductor) and trade power and die area for the lowest possible latency of any ADC architecture, which is why they remain dominant for bandwidth-limited video and communications IF applications above 10 MSPS. Key specifications include 8-bit resolution, 30 MSPS maximum sampling rate, single analog input channel, differential reference voltage architecture (Vref(dif)) with VRT/VRB reference inputs at 2.02V / 2.37V, a -9.7 mA reference current, and an internal R-ladder resistance of 245 ohm with a +456 m ohm/K temperature coefficient. The device targets ultra-low-power operation per the manufacturer's catalog description, and operates from a single supply with CMOS-compatible digital outputs. The ADC0804S030/040/050 family is built on a bipolar-compatible CMOS flash process and integrates 255 comparators plus encoding logic on-die. The differential reference input lets the full-scale range be scaled to the application, and the SSOP-28 footprint is shared across all three speed grades, simplifying PCB layout reuse when higher sample rates are needed in derivative designs. Typical applications include digital video broadcast equipment, ultrasound front-end digitizers, CCD imaging pipelines, cable modem return-path digitizers, and radar IF sampling. The 28-SSOP footprint is also useful where board height is constrained but QFPs are unavailable in the bill of materials. When designing in this part, allocate adequate decoupling on AVDD/DVDD rails and follow the datasheet's reference-driving guidance for the differential VRT/VRB inputs to preserve linearity; 50 ohm controlled impedance is recommended for the analog input trace to preserve ENOB at Nyquist. This page synthesizes distributor pricing, same-brand pin-compatible 40/50 MSPS variants, drop-in alternative notes, and PCB layout guidance that the bare Renesas datasheet does not present side-by-side.

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IDTADC0804S040TS-C1 - 8-bit 40MSPS Flash ADC | Renesas | 28-SSOP
IDTADC0804S040TS-C1

IDTADC0804S040TS-C1 - 8-bit 40MSPS Flash ADC | Renesas | 28-SSOP

The Renesas IDTADC0804S040TS-C1 is an 8-bit resolution flash analog-to-digital converter (ADC) sampling at up to 50 MHz, housed in a 28-pin SSOP package. Originally designed by IDT (Integrated Device Technology) and now part of the Renesas portfolio following the 2019 acquisition, this single-channel converter targets high-speed video, IF sampling, and instrumentation front-ends where 8-bit dynamic range is sufficient. What is a flash ADC? A flash (or parallel) ADC is the fastest ADC architecture, using 2^N-1 parallel comparators to convert an analog input in a single clock cycle. Unlike successive-approximation (SAR) or pipelined converters that need multiple cycles per sample, flash ADCs achieve sub-nanosecond conversion latency, making them ideal for real-time signal capture. The trade-off is component density: 8 bits require 255 comparators, limiting practical resolution. Flash ADCs sit at the top of the ADC taxonomy: ADC > flash ADC > high-speed data converter > signal chain IC > semiconductor. Key features include 8-bit resolution, sampling rates up to 50 MHz, single-clock-cycle conversion latency, 5V analog and 5V digital supply rails, TTL/CMOS-compatible digital inputs, In-Range (IR) CMOS outputs with no missing codes guaranteed, and an effective 7.8 ENOB at 4.43 MHz full-scale input with a 40 MHz clock. The wide analog input bandwidth and high SNR over a large frequency range make this part suitable for undersampling IF applications. Internally, the ADC0804S040 uses a resistive ladder reference network driving 255 latched comparators, with proprietary decoding logic producing a one-hot-to-binary output in a single propagation delay. DC sampling is explicitly allowed, unusual for a flash architecture, simplifying system clocking when AC-coupled inputs are absent. The combination of 5V supply tolerance and TTL/CMOS digital I/O simplifies interfacing with legacy 5V logic families common in industrial control and video processing. Typical applications include video digitizers, digital oscilloscopes, IF sampling in communications receivers, industrial inspection cameras, and medical imaging front-ends. In each, the 40 MSPS throughput and 7.8 ENOB at near-Nyquist inputs provide sufficient dynamic range without the latency or cost of pipelined converters. When designing with this device, ensure clean 5V analog and digital supplies with adequate decoupling (100 nF ceramic at each supply pin). The single-clock-cycle latency simplifies PCB trace-length matching between analog input and clock distribution. This page synthesizes distributor pricing, parametric alternatives in the same 28-SSOP footprint, and design notes not typically aggregated on a single distributor page.

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