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MCP79511-I/MS - SPI RTCC, 64B SRAM, 10-MSOP | Microchip
The Microchip Technology MCP79511-I/MS is a 3V SPI Battery-Backed Real-Time Clock/Calendar (RTCC) IC with 64-byte SRAM and pre-programmed EUI-48 MAC ID, housed in a 10-pin MSOP package. The device integrates a digital-trimmed timekeeper, automatic battery switchover, 64-byte battery-backed SRAM, and 2 Kbit EEPROM for non-volatile parameter storage. According to the Microchip product page, the MCP79511 SPI RTCC is highly integrated with memory and advanced features normally found in higher-priced devices. A Real-Time Clock (RTC) IC is a low-power timekeeping device that maintains accurate wall-clock time (seconds, minutes, hours, day, date, month, year) and calendar functions even when the main system is powered down. RTCs typically include a backup power input (battery or supercapacitor) to keep time during outages, and they communicate with a host microcontroller via serial interfaces such as I2C, SPI, or parallel buses. Within the broader hierarchy, an RTCC sits under Clock & Timing ICs -> Integrated Circuits, and shares architectural lineage with calendar/watchdog timers used in metering, data loggers, and secure element designs. Key features of the MCP79511-I/MS include digital trimming for high-accuracy timekeeping (typically ±5 ppm across the industrial temperature range), automatic power-switchover to a backup battery when VCC drops below threshold, two configurable interrupt outputs for alarms and watchdog functions, and a unique pre-programmed 48-bit MAC address (EUI-48) that simplifies networking product compliance. The SPI interface operates at up to 5 MHz for fast register access and supports 1-byte to 64-byte block writes to the SRAM and EEPROM. The integrated 2 Kbit EEPROM provides ample storage for application parameters, configuration data, or tamper logs. Architecturally, the MCP79511 uses a 32.768 kHz crystal oscillator input with an on-chip digital trimming DAC, allowing fine frequency adjustment to compensate for crystal tolerance and aging. The device's power-sense circuitry continuously monitors VCC and seamlessly switches to backup supply without losing time integrity, which is critical for metering, security, and IoT edge nodes. A separate backup-supply pin (VBAT) accepts 1.3V-3.6V, supporting lithium coin cells or supercapacitors. Typical applications include smart energy metering (AMI), data loggers with timestamping, industrial automation controllers requiring scheduling, security alarm panels, IoT edge nodes with secure timekeeping, and any embedded system needing persistent date/time during power cycles. The pre-programmed EUI-48 MAC ID simplifies Wi-Fi, Ethernet, or 6LoWPAN commissioning and avoids the need for external MAC address storage. When designing with the MCP79511-I/MS, place the 32.768 kHz crystal as close to the X1/X2 pins as possible and use load capacitors that match the crystal's specified load capacitance (typically 6-12.5 pF). Decouple VCC and VBAT with 100 nF ceramic capacitors to handle the automatic switchover transient and prevent register corruption. This page synthesizes Microchip datasheet specifications, distributor pricing as of 2026-10-09, verified drop-in alternatives, and practical design notes not typically assembled on a single manufacturer datasheet page.
MCP79511T-I/MS - 3V SPI RTC with EUI-48 | Microchip
The Microchip Technology MCP79511T-I/MS is a 3 V SPI real-time clock/calendar with 64-byte battery-backed SRAM, 1 Kbit EEPROM, and a pre-programmed EUI-48 MAC ID. Its 10-pin MSOP package supports battery switchover, digital trimming, an interrupt output, alarms, events, and a pre-programmed unique identifier. The device targets systems requiring accurate timekeeping, low-power backup, and secure network identity. What is a real-time clock/calendar? An RTC maintains time and calendar information independently of the system processor, typically from a crystal oscillator and backup supply. An SPI RTC combines that timekeeping function with a serial peripheral interface and nonvolatile storage. The MCP79511T-I/MS belongs to the RTC and clock/timing category, providing system time, retained data, and programmable events without relying entirely on a microcontroller. The MCP79511 family combines digital trimming compensation, a backup-power switchover circuit, and pre-programmed EUI-48 identification. Its integrated 64-byte battery-backed SRAM preserves frequently used configuration or counter data, while 1 Kbit EEPROM provides nonvolatile storage. The SPI interface allows the host to configure the device, read current time, program alarms and timers, and manage stored data over a compact serial connection. The MCP79511T-I/MS is designed for low-power embedded systems where accurate timekeeping and identity are important. Digital trimming supports calibration of the oscillator, while the battery switchover helps maintain operation when the primary supply is removed. The interrupt output can indicate alarms, timer events, or other programmed conditions, allowing the host processor to remain inactive until an event occurs. Typical applications include Ethernet-connected equipment requiring EUI-48 identification, industrial controllers, data-acquisition systems, network appliances, embedded instruments, and battery-backed telemetry products. The combination of RTC functionality, retained memory, EEPROM, and MAC identity can reduce the number of discrete components required in a design. Designers should verify the crystal, load capacitors, supply decoupling, and backup-battery interface against the manufacturer datasheet. Firmware must also account for the device address, register map, interrupt behavior, and any required calibration sequence. The available verified source data confirms the 3 V SPI RTCC function, 64-byte SRAM, 1 Kbit EEPROM, EUI-48 identity, and 10-MSOP package. This page consolidates manufacturer product information, distributor listings, interface details, and application guidance for engineers evaluating the MCP79511T-I/MS. Exact pricing, electrical limits, timing values, and pin assignments should be checked against the current Microchip datasheet before release to production.
MK2049-36SI - 3.3V PLL Clock Synthesizer | Renesas
Renesas Electronics MK2049-36SI is a 3.3 V PLL-based communications clock synthesizer that accepts multiple input frequencies and generates T1, E1, T3, E3, OC3 and other communications clock frequencies. The device uses an 8 kHz reference clock, produces LVCMOS outputs, and supports frequencies up to 77.76 MHz. It is supplied in a 20-pin SOIC package. The 3.3 V supply requirement, phase-locked-loop architecture and communications-oriented output range make the MK2049-36SI suitable for line-card, transmission, switching and other telecommunications clocking systems. A PLL clock synthesizer is a clock-and-timing integrated circuit that multiplies or divides a stable reference frequency while locking its internal oscillator to that reference. In the product hierarchy, a PLL synthesizer is a clock generator, a clock-and-timing IC and ultimately a semiconductor. Compared with a free-running oscillator, the phase-locked architecture allows multiple related output frequencies to share a common 8 kHz reference, reducing frequency drift between clocks and simplifying synchronization across a communications system. The MK2049-36 family provides one PLL-based clock-synthesis circuit with a maximum reported output frequency of 77.76 MHz. Its input and output signal format is LVCMOS, and the specified input-to-output ratio shown in the verified distributor listing is 1:3. The SI ordering suffix identifies the industrial 20-pin SOIC configuration. These characteristics make exact timing, supply-voltage and pin-level verification against the Renesas datasheet essential before replacing another PLL clock generator. The verified datasheet guidance states that the MK2049-36 requires only a small number of external components for proper operation. Decoupling capacitors of 0.01 µF should be connected between VDD and GND close to the device, particularly at pins 4 and 7 and at pins 15 and 17. The Renesas document also recommends 33 Ω series terminating resistors on clock outputs when traces exceed one inch and the characteristic impedance is assumed to be 50 Ω. These details minimize supply coupling and high-frequency clock-edge reflections. Typical applications include telecommunications line equipment, T1 and E1 interface systems, OC3 and E3 clock generation, Gigabit Ethernet clock-distribution networks, and legacy synchronous communications equipment. In these systems, the 3.3 V operating supply and LVCMOS interfaces simplify integration with compatible digital logic. The shared 8 kHz reference allows several output rates to remain phase-related, which is valuable when transmitters, switches, serializers and test equipment must operate coherently. Designers should preserve the manufacturer's recommended 0.01 µF decoupling layout and account for output drive requirements when the clock net is not properly terminated. The 33 Ω source-termination guidance is especially important for long PCB traces or cable connections because excessive edge reflections can degrade timing margin and produce spurious clock activity. Supply sequencing, crystal or oscillator startup behavior, and the exact configuration of each programmable output should be checked in the full datasheet. This product page consolidates the verified manufacturer and distributor information, identifies the documented external-component requirements, and distinguishes true same-package alternatives from redesign-level options. It also provides application-focused design guidance for engineers evaluating the MK2049-36SI as a legacy or production communications clock-synthesis component.
MK2049-45SI - 51.84MHz Dual PLL Clock Synthesizer | Renesas
Renesas Electronics Corporation MK2049-45SI is a 3.3 V dual phase-locked-loop clock synthesizer with a maximum output frequency of 51.84 MHz, configured for 8 kHz communications-clock locking, and housed in a 20-pin SOIC package. The device supports frequency synthesis and jitter attenuation, while its VCXO-based first PLL uses a pullable crystal to track signal wander and attenuate input jitter. A phase-locked loop is a timing-control circuit that locks an oscillator phase and frequency to a reference signal. Within the clock and timing hierarchy, a PLL clock synthesizer sits above a crystal oscillator and below communications timing systems, converting or distributing reference clocks while reducing phase noise and jitter. The MK2049-45 family provides selectable output frequencies and buffer-mode options for clocking systems that require deterministic low-jitter timing. The verified source data identifies 14 selectable output frequencies, two buffer-mode selections, a maximum frequency of 51.84 MHz, and operation from an 8 kHz communications-clock input. A 125 MHz high-frequency input is also listed in the comparison data for buffer or jitter-attenuation use. These functions allow one device to address both synthesized communications-clock generation and buffered high-frequency clock distribution. The first PLL is VCXO based and relies on a pullable crystal to follow input-clock wander while attenuating jitter. The second PLL provides the device's synthesis path, with programmable output selections providing flexibility across multiple communications requirements. The source material also identifies the MK2049-45SI as a clock generator, PLL clock synthesizer with one listed PLL channel and a 1:3 input-to-output ratio in one abbreviated specification source. Typical uses include communications infrastructure, line-card timing, 8 kHz-locked reference generation, and high-frequency clock buffering. The device is particularly relevant where an 8 kHz communications reference must be converted into one of 14 supported output frequencies. Its 20-pin SOIC package also allows reuse of an existing surface-mount layout when the appropriate pin configuration and electrical limits are confirmed against the manufacturer datasheet. Designers should verify the selected output frequency, PLL configuration, loop filters, crystal requirements, input-output ratio, and decoupling network against the official datasheet before layout release. The pullable crystal and VCXO topology are central to jitter performance, so incorrect component selection or filtering can undermine the intended phase-noise benefit. Pin assignments and crystal recommendations must be taken directly from the manufacturer documentation rather than inferred from the abbreviated distributor listing. This product analysis consolidates the verified distributor and manufacturer information, distinguishes the confirmed 8 kHz synthesis mode from the 125 MHz buffer mode, and identifies unresolved datasheet details explicitly. It also provides sourcing context, package-aware candidate references, and practical design cautions that are not apparent from a distributor search result alone.
MK2058-01SI - 27MHz Clock Jitter Attenuator | Renesas Electronics
Renesas Electronics MK2058-01SI is a VCXO-based clock jitter attenuator IC designed for system clock distribution, with a maximum operating frequency of 27 MHz, LVCMOS input and output, and a 2:1 input-to-output ratio in a 20-pin SOIC package. The device uses a 3.15 V to 3.45 V supply, integrates a PLL, and provides one clock circuit for applications that require a low-jitter distributed reference clock. A clock jitter attenuator is a timing-integrity device that reduces unwanted phase variation in a reference clock before it is distributed to a digital system. Clock generators and PLLs are members of the clock and timing IC hierarchy, while the MK2058-01SI specializes in conditioning an existing reference. Its VCXO-based architecture combines an oscillator with a phase-locked loop to attenuate jitter inherited from the incoming source or interconnect path. The verified feature set includes one clock channel, a 27 MHz maximum frequency, LVCMOS-compatible input and output signaling, and a 2:1 input-to-output division ratio. The single-ended architecture means that neither the input nor the output is differential. These characteristics make the device suitable for system clock distribution where a 2:1 divided clock and single-ended LVCMOS interface match the receiving logic. The MK2058-01SI integrates a PLL and a voltage-controlled crystal oscillator rather than functioning only as a frequency divider. This architecture is intended to suppress clock jitter while maintaining a stable system reference. Because the input and output are single-ended, board-level return paths and clock trace topology remain important; short connections, a controlled ground reference, and avoidance of disruptive nearby circuitry can help preserve timing quality. Typical uses include communications equipment, networking systems, embedded digital platforms, and clock-distribution subsystems operating below or at 27 MHz. It is particularly relevant when the source clock exhibits timing variation and the downstream circuitry benefits from a conditioned 2:1 reference. The 20-SOIC surface-mount package supports conventional PCB assembly, although the available 0.295-inch, 7.50 mm-wide body requires careful lead spacing and thermal-layout consideration. Designers should verify crystal selection, loop-filter settings, input waveform quality, and output-drive requirements against the manufacturer datasheet before production release. The data identifies the device as a VCXO-based jitter attenuator, but the supplied source material does not expose the complete recommended external-component list or all electrical characteristics. This page consolidates the verified Renesas and distributor facts for the MK2058-01SI, distinguishes confirmed specifications from missing datasheet parameters, and explains selection trade-offs without presenting unsupported substitutions as drop-in equivalents.
MK2059-01SI - 25.92MHz Clock Translator | Renesas | Telecom
The Renesas Electronics MK2059-01SI is a VCXO-based frame clock frequency translator with a maximum output frequency of 25.92 MHz, LVCMOS input and output interfaces, and a 20-pin SOIC package. It accepts an 8 kHz frame-rate reference clock and phase-locks its generated output to that reference, producing common telecommunications clock frequencies. A voltage-controlled crystal oscillator-based clock translator is a clock-generation IC that combines frequency translation, phase locking, and reference synchronization. It belongs to the broader clock and timing IC hierarchy, where clock generators and phase-locked loops support communication networks, digital transport systems, and other equipment requiring stable, traceable timing references. Unlike a free-running oscillator, the MK2059-01SI derives its output from an external reference, improving synchronization across a telecommunications system. Key features include a 25.92 MHz maximum output frequency, an input-to-output ratio of 2:1, LVCMOS input and output signaling, and an integrated PLL. The supply-voltage range is 3.15 V to 3.45 V, while the rated operating-temperature range is -40°C to +85°C. The surface-mount 20-SOIC package provides a compact option for communication and timing equipment. Internally, the device uses a VCXO-based architecture and PLL-based clock generation to lock the generated clock to the 8 kHz input reference. This phase-locked relationship is the principal technical feature: the output is not intended as an unrelated free-running oscillator but as a translated reference derived from the incoming frame clock. The PLL feature and LVCMOS interfaces place the device in the class of integrated frequency translators intended for telecommunications clocking. Typical applications include telecommunications line equipment, frame-clock synchronization networks, clock distribution subsystems, and communication interfaces that require a derived reference from an 8 kHz source. The 25.92 MHz maximum output makes it suitable for systems operating at the stated common telecommunications reference frequency, while the 3.15 V to 3.45 V supply range supports low-voltage digital clock architectures. Designers should verify the input reference amplitude, output waveform, PLL loop stability, and decoupling requirements against the manufacturer datasheet before layout. The LVCMOS clock path requires short, controlled-impedance routing and clean return paths, while the 20-SOIC footprint requires adequate board area and thermal consideration for reliable assembly. This page combines verified manufacturer and distributor information with explicit data gaps, application guidance, and package-specific replacement analysis. It is intended to help engineers evaluate the MK2059-01SI without mistaking packaging variants for functionally different devices or assuming unreported electrical specifications.
MK2069-01GI - 160MHz VCXO Clock Synchronizer | Renesas
The Renesas Electronics MK2069-01GI is a VCXO-based line-card clock synchronizer with a maximum stated frequency of 160 MHz, a 3.15 V to 3.45 V supply range, and a 56-pin thin TSSOP package measuring 0.240 inch, or 6.10 mm, in width. It combines system synchronization, jitter attenuation, and frequency multiplication or translation in one mixed analog and digital timing IC. A clock synchronizer is a timing integrated circuit that coordinates one or more clock domains by selecting reference inputs and distributing or conditioning clock signals. The MK2069-01GI belongs to the broader clock generator, PLL, and frequency synthesizer category, where its VCXO architecture provides a variable-frequency reference that can be controlled to support synchronization and output-frequency conversion. The principal verified features include a 160 MHz maximum clock frequency, three alternate reference inputs, an asynchronous input multiplexer, and LVCMOS differential outputs. ICLK0 and ICLK1 are 5 V tolerant according to the manufacturer datasheet, while the remaining reference inputs do not share that stated tolerance. The device is intended for surface mounting in a 56-TFSOP package and operates over the disclosed -40 °C to 85 °C range. The MK2069-01 uses a VCXO-based architecture to deliver the performance expected of a canned VCXO-based hybrid timing device at a lower cost. Its mixed analog and digital implementation makes PCB layout and external component selection especially important. Short, controlled routing, suitable grounding, and compliant external crystal-network components are necessary to preserve timing performance and stability. Typical uses include line-card clock synchronization, telecommunications equipment, communication infrastructure, frequency translation, and jitter-sensitive clock distribution. A 160 MHz ceiling makes the device relevant to systems that distribute a common reference while requiring selectable reference sources or attenuated clock paths. Designers should treat the 3.15 V to 3.45 V supply range as a hard constraint and should not infer 5 V operation merely because ICLK0 and ICLK1 are 5 V tolerant. The input multiplexer selection is asynchronous and non-latched, so control timing and switching behavior should be evaluated against the system requirements. Exact power consumption, jitter limits, output configurations, and full pin assignments require confirmation from the manufacturer datasheet before layout release. This product record combines verified manufacturer and distributor information with package-specific engineering guidance, sourcing context, and candid identification of parameters that still require design-in verification.
MK2069-04GI - 160MHz VCXO Clock Translator | Renesas
The Renesas Electronics MK2069-04GI is a VCXO-based universal clock translator with a maximum operating frequency of 160 MHz, PLL-based clock generation, and LVCMOS input/output interfaces. It is packaged in a 56-TFSOP package measuring approximately 6.10 mm in width. The device is intended for translating clock frequencies between systems whose clocks do not share a convenient direct integer relationship. A VCXO-based clock translator is a clock-generation and timing-management device that uses a voltage-controlled crystal oscillator and phase-locked loop architecture. In the broader semiconductor hierarchy, it belongs to the clock and timing IC category, where PLL-based translators condition, multiply, divide, or otherwise redistribute reference-clock energy. The MK2069-04GI provides a single LVCMOS clock output path and uses selectable reference and feedback dividers to establish the translation ratio. Key features include support for frequencies up to 160 MHz, PLL operation, LVCMOS signal compatibility, and user-selectable divider ranges. The on-chip VCXO produces a stable, low-jitter output clock using a phase detector frequency down to 8 kHz or lower. This architecture is useful for telecom frame clocks, including standards operating from an 8 kHz common clock, and for other systems requiring clock conversion between unrelated frequencies. The PLL phase detector, reference divider, feedback divider, and VCXO work together to correct phase and frequency errors between the incoming reference and the generated output. Divider selection determines the effective multiplication ratio, while the output stage delivers the resulting clock in LVCMOS form. The device also provides jitter attenuation of the input clock and can accept low input frequencies, making it useful where conventional integer-ratio clock trees are insufficient. Typical applications include telecom line-card clock translation, network interface clocking, communications equipment, test and measurement systems, and embedded systems that need a locally generated clock with low jitter. The part can also support clock-domain adaptation where the source and destination frequencies have a low common denominator. In each case, the design must select divider values compatible with the PLL operating range and preserve the required output-to-input phase relationship. Designers should verify the reference and feedback divider combinations, input slew rate, output loading, and loop stability against the manufacturer datasheet. The 56-TFSOP footprint requires adequate board area and careful routing of clock inputs and power supplies. Decoupling close to the supply pins and a controlled source impedance are important for maintaining predictable phase noise and jitter performance. This product summary consolidates distributor availability information, manufacturer-based clock architecture details, replacement guidance, and practical implementation considerations into a design-oriented reference for engineers evaluating the MK2069-04GI.
MK2302S-01 - 168MHz Zero-Delay Clock Buffer | Renesas
The Renesas Electronics MK2302S-01 is a 168 MHz zero-delay buffer (ZDB) with an integrated analog/digital phase-locked loop, supplied in an 8-pin SOIC package. It provides one clock circuit, a CMOS clock output, and operates from a verified 3.15 V to 3.45 V supply range. The device is designed to regenerate and distribute clock signals where predictable frequency, controlled phase relationship, and multiple output drive capability are required. A zero-delay buffer is a clock-management device intended to reproduce an input clock at one or more outputs while controlling propagation delay and phase relationship. The MK2302S-01 uses PLL techniques to distribute a clock signal and can therefore be useful in systems where the source clock must be isolated or regenerated before reaching multiple sequential or communications circuits. In the system hierarchy, it belongs to the clock and timing IC family rather than a general-purpose logic IC. Verified device characteristics include a maximum frequency of 168 MHz, one clock circuit, a CMOS output, and a 3.15 V to 3.45 V supply range. The manufacturer and distributor search results identify the part as a multiplier and zero-delay buffer. Additional timing, output-current, jitter, temperature, and package-dimension values were not supplied in the verified data and therefore require confirmation from the manufacturer datasheet before final design release. Typical uses include clock distribution for communications equipment, digital logic systems, embedded processors, interface controllers, and test equipment. The integrated PLL architecture is relevant when the circuit needs a regenerated clock rather than a passive fanout buffer. Designers should compare both source and destination clock requirements, verify the supported output configuration, and check propagation-delay behavior across temperature and supply voltage before using the device as a drop-in element in an existing design. The most important layout consideration is short, controlled clock routing. Keep the input and output paths away from noisy switching nodes, use a continuous ground reference, and terminate unused outputs according to the manufacturer recommendations. The available search results do not provide a verified pricing schedule, complete pin mapping, lifecycle statement, or detailed electrical limits; those fields remain explicitly marked for data acquisition rather than being inferred. This page combines the verified Renesas and distributor classifications with practical clock-distribution guidance, package information, sourcing references, and an explicit data-completeness assessment. It is intended to support initial component selection while distinguishing confirmed specifications from parameters that must still be checked in the official datasheet.
MK2302S-01TR - 168MHz Zero-Delay Clock Buffer | Renesas (Tape & Reel)
The Renesas Electronics MK2302S-01TR is a 168 MHz zero-delay buffer (ZDB) with an integrated analog/digital phase-locked loop, supplied in an 8-pin SOIC package. It provides one clock circuit, a CMOS clock output, and operates from a verified 3.15 V to 3.45 V supply range. The device is designed to regenerate and distribute clock signals where predictable frequency, controlled phase relationship, and multiple output drive capability are required. A zero-delay buffer is a clock-management device intended to reproduce an input clock at one or more outputs while controlling propagation delay and phase relationship. The MK2302S-01TR uses PLL techniques to distribute a clock signal and can therefore be useful in systems where the source clock must be isolated or regenerated before reaching multiple sequential or communications circuits. In the system hierarchy, it belongs to the clock and timing IC family rather than a general-purpose logic IC. Verified device characteristics include a maximum frequency of 168 MHz, one clock circuit, a CMOS output, and a 3.15 V to 3.45 V supply range. The manufacturer and distributor search results identify the part as a multiplier and zero-delay buffer. Additional timing, output-current, jitter, temperature, and package-dimension values were not supplied in the verified data and therefore require confirmation from the manufacturer datasheet before final design release. Typical uses include clock distribution for communications equipment, digital logic systems, embedded processors, interface controllers, and test equipment. The integrated PLL architecture is relevant when the circuit needs a regenerated clock rather than a passive fanout buffer. Designers should compare both source and destination clock requirements, verify the supported output configuration, and check propagation-delay behavior across temperature and supply voltage before using the device as a drop-in element in an existing design. The most important layout consideration is short, controlled clock routing. Keep the input and output paths away from noisy switching nodes, use a continuous ground reference, and terminate unused outputs according to the manufacturer recommendations. The available search results do not provide a verified pricing schedule, complete pin mapping, lifecycle statement, or detailed electrical limits; those fields remain explicitly marked for data acquisition rather than being inferred. This page combines the verified Renesas and distributor classifications with practical clock-distribution guidance, package information, sourcing references, and an explicit data-completeness assessment. It is intended to support initial component selection while distinguishing confirmed specifications from parameters that must still be checked in the official datasheet.
MK2304S-1LF - 133MHz Zero-Delay Clock Buffer | Renesas
Renesas Electronics MK2304S-1LF is a zero-delay, low-skew CMOS clock buffer with a maximum operating frequency of 133 MHz, a 1:4 input-to-output ratio, and one circuit in an 8-pin SOIC package measuring 0.154 inch, or 3.90 mm, in width. It is designed to reproduce and distribute clock signals where low propagation delay and controlled output skew are important to system timing. A zero-delay buffer is a clock and timing integrated circuit that reconstructs and buffers a periodic logic waveform while attempting to minimize added propagation delay. In the broader hierarchy, it belongs to clock buffers and drivers, then clock and timing ICs, then integrated circuits and semiconductors. Unlike a passive fan-out buffer, it combines active input and output stages with circuitry designed to preserve clock-edge relationships and provide useful drive capability. Verified distributor information identifies the MK2304S-1LF as a zero-delay buffer with a maximum frequency of 133 MHz, a single circuit, a 1:4 input-to-output ratio, CMOS output technology, and PLL capability. Its 8-SOIC package supports conventional surface-mount assembly, while the -1LF ordering suffix identifies the lead-free packaging configuration. These characteristics make the device relevant to clock-distribution networks, processor and memory interfaces, communication equipment, and general digital systems requiring multiple or isolated clock outputs. The active circuit is intended to reduce loading on the source clock and distribute a clean CMOS waveform. A 1:4 ratio means the device provides four output phases for each input cycle, which is useful when several downstream blocks must receive related clocks. The exact propagation-delay, output-skew, rise-time, fall-time, supply-current, and operating-temperature limits must be confirmed in the Renesas manufacturer datasheet before a design is released. Typical uses include processor clock distribution, memory clock buffering, communication-interface clock fan-out, and digital test-equipment clock trees. In each case, the key design concern is preserving edge-to-edge relationships while keeping source loading and interconnect-induced skew under control. The 133 MHz upper frequency provides a useful qualification point for legacy and moderate-speed digital systems. Designers should place the device close to the clock source, use short and properly terminated clock traces, and verify the output timing at the receiving endpoints rather than relying only on device-level specifications. Decoupling and return-path continuity are also essential because inductive power-supply noise and imperfect grounding can degrade deterministic clock quality. This page consolidates the verified distributor specifications, current sourcing information, package details, selection guidance, and design cautions for the MK2304S-1LF. It also distinguishes verified drop-in candidates from unverified package or frequency assumptions so engineers can make a defensible replacement decision.
MK2304S-2 - 133MHz Zero-Delay Buffer | Renesas | Clock
The Renesas Electronics MK2304S-2 is a 133 MHz zero-delay buffer with one CMOS clock circuit in an 8-SOIC package measuring 0.154 inch, or 3.90 mm, wide. It uses PLL-based zero-delay technology to reproduce a clock signal with low skew, and the verified specifications identify a 1:1 input-to-output ratio. The device operates from a 3 V to 3.6 V supply and supports a 0°C to 70°C temperature range, making it suitable for conventional digital clock-distribution systems that fit those limits. A zero-delay buffer is a clock and timing IC that compensates clock-propagation delay between a source and downstream circuitry while maintaining a unity frequency relationship between input and output. Within the broader semiconductor hierarchy, it belongs to clock and timing integrated circuits and is functionally associated with clock buffers, clock drivers, and PLL-based synchronization circuits. Its principal engineering benefit is reduced clock skew among receiving devices, provided the power supply, trace topology, and output loading meet the manufacturer's operating requirements. The MK2304S-2 provides a maximum frequency of 133 MHz, one CMOS output path, PLL capability, and a unity input-to-output ratio. The verified data describes it as a low-jitter, low-skew, high-performance PLL-based buffer for high-speed applications. These characteristics make clock-edge alignment more important than merely restoring a degraded waveform. Designers must also account for supply decoupling, output loading, board-level skew, and the fact that the specified operating temperature is limited to 0°C through 70°C. Its 8-SOIC surface-mount package supports conventional PCB assembly and compact clock-distribution layouts. The verified operating information specifies a 3 V to 3.6 V supply, CMOS output, and one circuit. Exact propagation delay, input and output capacitance, output current, RMS jitter, cycle-to-cycle jitter, and package dimensions beyond the stated width are not available in the supplied records and must be checked in the manufacturer documentation before release to production. Typical uses include synchronizing CMOS logic, distributing a common clock among digital components, correcting accumulated board or driver skew, and buffering a clock source in communications, control, or embedded systems. The 133 MHz ceiling makes timing closure critical: propagation delay, output transition behavior, loading, and PCB mismatch can all affect whether the buffer preserves the required edge relationship. For implementation, follow the manufacturer's recommended 0.1 µF decoupling capacitor from VDD to GND and place it as close as practical to the device. Confirm source and sink capability against the target load, preserve a continuous ground reference, and validate worst-case skew at the actual operating temperature. Do not assume automotive or extended-temperature suitability because the verified range is 0°C to 70°C. This page combines verified distributor specifications, the manufacturer datasheet link, commercial availability signals, and a cross-brand replacement assessment. It also separates confirmed electrical facts from parameters that still require datasheet verification, helping engineers evaluate the MK2304S-2 without treating unverified timing, jitter, or current limits as guaranteed specifications.
MK2304S-2I - 133MHz Zero-Delay Buffer | Renesas
The Renesas Electronics MK2304S-2I is a PLL-based zero-delay buffer rated for clock frequencies up to 133 MHz at 3.3 V, with four low-skew CMOS outputs in an 8-SOIC surface-mount package. The -2I ordering code identifies the industrial-temperature device, while the package suffix S denotes the SOIC form factor. According to the available manufacturer description, it uses proprietary low-jitter PLL techniques to compensate propagation delay and provide tightly related outputs for high-speed digital systems. A zero-delay buffer is a clocking device that receives a reference clock and generates multiple buffered outputs intended to align edge timing. Unlike a simple logic buffer, a PLL-based zero-delay buffer can retime the input waveform while distributing it to several loads. In the clock and timing hierarchy, the MK2304S-2I is a clock buffer, a clock-distribution component, and ultimately a timing integrated circuit used to reduce skew between digital destinations. The verified source data identifies the device as a low-jitter, low-skew, high-performance PLL-based zero-delay buffer operating at 3.3 V. It provides four low-skew outputs and includes a bank of two outputs operating at one-half the input frequency. At speeds up to 133 MHz, these characteristics make the part relevant to processor clock trees, memory interfaces, communications equipment, and other systems where multiple clock domains require controlled edge relationships. The architecture is important because clock skew can determine setup and hold margins even when nominal frequency is acceptable. Four outputs allow a designer to distribute the reference to multiple loads, while the divided outputs can serve lower-rate clock domains. Zero-delay mode means the rising edge of the input clock is aligned with the corresponding outputs, although actual board-level timing still depends on trace length, load capacitance, supply integrity, and the receiving devices. Typical implementations include synchronous digital logic, networking equipment, industrial controllers, and communication systems. The 3.3 V supply requirement places it in systems that already provide a 3.3 V clocking rail. Designers should use short, impedance-controlled clock traces, maintain continuous return paths, and place decoupling close to the supply pins. Input and output timing, PLL loop behavior, and output loading should be evaluated with the complete system rather than inferred solely from the 133 MHz headline frequency. This product record combines verified distributor and manufacturer-linked specifications with practical clock-tree design guidance. It also distinguishes confirmed facts from unavailable details, preventing unsupported pin assignments, jitter numbers, pricing tiers, or lifecycle claims from being presented as established specifications. The result is intended to help engineers source the MK2304S-2I and evaluate whether its zero-delay, four-output architecture matches a specific synchronous design.
MK2304S-2ITR - 133MHz Zero-Delay Buffer | Renesas (Tape & Reel)
The Renesas Electronics MK2304S-2ITR is a PLL-based zero-delay buffer rated for clock frequencies up to 133 MHz at 3.3 V, with four low-skew CMOS outputs in an 8-SOIC surface-mount package. The -2I ordering code identifies the industrial-temperature device, while the package suffix S denotes the SOIC form factor. According to the available manufacturer description, it uses proprietary low-jitter PLL techniques to compensate propagation delay and provide tightly related outputs for high-speed digital systems. A zero-delay buffer is a clocking device that receives a reference clock and generates multiple buffered outputs intended to align edge timing. Unlike a simple logic buffer, a PLL-based zero-delay buffer can retime the input waveform while distributing it to several loads. In the clock and timing hierarchy, the MK2304S-2ITR is a clock buffer, a clock-distribution component, and ultimately a timing integrated circuit used to reduce skew between digital destinations. The verified source data identifies the device as a low-jitter, low-skew, high-performance PLL-based zero-delay buffer operating at 3.3 V. It provides four low-skew outputs and includes a bank of two outputs operating at one-half the input frequency. At speeds up to 133 MHz, these characteristics make the part relevant to processor clock trees, memory interfaces, communications equipment, and other systems where multiple clock domains require controlled edge relationships. The architecture is important because clock skew can determine setup and hold margins even when nominal frequency is acceptable. Four outputs allow a designer to distribute the reference to multiple loads, while the divided outputs can serve lower-rate clock domains. Zero-delay mode means the rising edge of the input clock is aligned with the corresponding outputs, although actual board-level timing still depends on trace length, load capacitance, supply integrity, and the receiving devices. Typical implementations include synchronous digital logic, networking equipment, industrial controllers, and communication systems. The 3.3 V supply requirement places it in systems that already provide a 3.3 V clocking rail. Designers should use short, impedance-controlled clock traces, maintain continuous return paths, and place decoupling close to the supply pins. Input and output timing, PLL loop behavior, and output loading should be evaluated with the complete system rather than inferred solely from the 133 MHz headline frequency. This product record combines verified distributor and manufacturer-linked specifications with practical clock-tree design guidance. It also distinguishes confirmed facts from unavailable details, preventing unsupported pin assignments, jitter numbers, pricing tiers, or lifecycle claims from being presented as established specifications. The result is intended to help engineers source the MK2304S-2ITR and evaluate whether its zero-delay, four-output architecture matches a specific synchronous design.
MK2304S-2LF - 133MHz Zero-Delay Clock Buffer | Renesas
The Renesas Electronics MK2304S-2LF is a 133 MHz zero-delay, low-skew clock buffer with four CMOS outputs, a 3 V to 3.6 V supply range, and 400 ps skew in an 8-pin SOIC package measuring 3.90 mm wide. It uses PLL-based zero-delay buffering to support high-speed systems requiring closely matched clock outputs and low propagation delay. A zero-delay buffer is a clock and timing IC that compensates for clock-distribution path delay so multiple downstream devices can receive a common edge at approximately the same time. Within the product hierarchy, it is a clock buffer, a type of clock and timing integrated circuit and a specialized form of digital signal buffer. Unlike a conventional CMOS buffer, which introduces propagation delay, a PLL-based zero-delay buffer uses phase control to minimize delay through the device. The MK2304S-2LF operates from 3 V to 3.6 V and supports operation up to 133 MHz. Its four low-skew CMOS outputs allow one input clock to feed several loads while limiting output-to-output timing variation. The device is identified as a clock driver with a 1:1 input-to-output ratio, making it suitable for distributed clocking rather than frequency multiplication or division. Its SOIC-8 surface-mount package also supports conventional automated board assembly. Technically, the key benefit is the combination of low skew and zero-delay behavior at 133 MHz. The specified 400 ps skew provides a quantitative limit for output timing alignment, while the PLL-based architecture reduces insertion delay through the buffer. This is useful when several high-speed loads must be clocked consistently without allowing fanout traces or loading to create unacceptable arrival-time differences. Typical uses include processor and memory clock distribution, communications equipment, graphics systems, peripheral clocking, and other digital systems operating at or below 133 MHz. The four-output configuration can reduce the number of separate clock-buffer circuits required when four related loads share the same source clock. Care should be taken to maintain controlled-impedance routing and provide proper decoupling close to the device. Designers should verify output loading, trace length matching, supply-noise sensitivity, and unused-output termination against the manufacturer datasheet. Because the supplied web data does not include a complete pin table or guaranteed electrical limits for every parameter, those details should be confirmed in the manufacturer documentation before layout release. This page consolidates the verified 133 MHz operating point, 3 V to 3.6 V supply range, four-output PLL architecture, 400 ps skew, package information, RoHS indication, distributor availability, and drop-in replacement findings into a design-oriented component reference.
MK2304S-2TR - 133MHz Zero-Delay Buffer | Renesas | Clock (Tape & Reel)
The Renesas Electronics MK2304S-2TR is a 133 MHz zero-delay buffer with one CMOS clock circuit in an 8-SOIC package measuring 0.154 inch, or 3.90 mm, wide. It uses PLL-based zero-delay technology to reproduce a clock signal with low skew, and the verified specifications identify a 1:1 input-to-output ratio. The device operates from a 3 V to 3.6 V supply and supports a 0°C to 70°C temperature range, making it suitable for conventional digital clock-distribution systems that fit those limits. A zero-delay buffer is a clock and timing IC that compensates clock-propagation delay between a source and downstream circuitry while maintaining a unity frequency relationship between input and output. Within the broader semiconductor hierarchy, it belongs to clock and timing integrated circuits and is functionally associated with clock buffers, clock drivers, and PLL-based synchronization circuits. Its principal engineering benefit is reduced clock skew among receiving devices, provided the power supply, trace topology, and output loading meet the manufacturer's operating requirements. The MK2304S-2TR provides a maximum frequency of 133 MHz, one CMOS output path, PLL capability, and a unity input-to-output ratio. The verified data describes it as a low-jitter, low-skew, high-performance PLL-based buffer for high-speed applications. These characteristics make clock-edge alignment more important than merely restoring a degraded waveform. Designers must also account for supply decoupling, output loading, board-level skew, and the fact that the specified operating temperature is limited to 0°C through 70°C. Its 8-SOIC surface-mount package supports conventional PCB assembly and compact clock-distribution layouts. The verified operating information specifies a 3 V to 3.6 V supply, CMOS output, and one circuit. Exact propagation delay, input and output capacitance, output current, RMS jitter, cycle-to-cycle jitter, and package dimensions beyond the stated width are not available in the supplied records and must be checked in the manufacturer documentation before release to production. Typical uses include synchronizing CMOS logic, distributing a common clock among digital components, correcting accumulated board or driver skew, and buffering a clock source in communications, control, or embedded systems. The 133 MHz ceiling makes timing closure critical: propagation delay, output transition behavior, loading, and PCB mismatch can all affect whether the buffer preserves the required edge relationship. For implementation, follow the manufacturer's recommended 0.1 µF decoupling capacitor from VDD to GND and place it as close as practical to the device. Confirm source and sink capability against the target load, preserve a continuous ground reference, and validate worst-case skew at the actual operating temperature. Do not assume automotive or extended-temperature suitability because the verified range is 0°C to 70°C. This page combines verified distributor specifications, the manufacturer datasheet link, commercial availability signals, and a cross-brand replacement assessment. It also separates confirmed electrical facts from parameters that still require datasheet verification, helping engineers evaluate the MK2304S-2TR without treating unverified timing, jitter, or current limits as guaranteed specifications.
MK2308G-1H - 133MHz 1:8 Zero Delay Buffer | Renesas
The Renesas Electronics MK2308G-1H is a 133 MHz zero-delay buffer with a 1:8 input-to-output ratio, PLL bypass capability, CMOS clock outputs, and eight low-skew outputs in a 16-TSSOP package. It is designed to distribute one clock input across eight outputs at speeds up to 133 MHz while operating from 3.3 V. The part can generate outputs through its PLL for zero-delay operation or bypass the PLL and route the input directly for testing. A zero-delay buffer is a clock and timing IC that compensates propagation delay introduced by clock distribution networks while distributing a single reference to multiple loads. It belongs to the broader hierarchy of clock buffers, clock distribution circuits, phase-locked-loop timing devices, and clock and timing integrated circuits. Its principal purpose is to provide multiple low-skew clock outputs to processors, memory interfaces, communications equipment, and other digital systems that require synchronized logic. The verified data identifies the MK2308G-1H as a zero-delay buffer IC with a maximum frequency of 133 MHz, one circuit, a 1:8 ratio, PLL functionality with bypass, clock input, and CMOS output. A distributor listing identifies the physical package as 16-TSSOP with a stated body width of 4.40 mm. The device can also drive its outputs in tri-state or stop them at a low level, useful for shared-bus and test-control architectures. Its PLL-based architecture is intended for low-skew output generation at 3.3 V. The bypass path allows the input clock to be observed without PLL multiplication or correction, which can simplify diagnostic and test setups. The output count enables one reference clock to feed eight destinations without replicating the clock source eight times, reducing routing complexity and helping maintain consistent timing across a board. Typical applications include processor clock distribution, memory clock fanout, communications infrastructure, test-and-measurement equipment, and digital systems requiring multiple synchronized outputs. When implementing the circuit, use the manufacturer-recommended decoupling capacitors and place them close to the power and ground pins. The Renesas MK2308-1H datasheet search result specifies 0.01 mF capacitors between VDD and GND at the stated power-pin pairs. This product page synthesizes the verified distributor specifications, manufacturer datasheet link, package information, and practical implementation guidance. Because the supplied source snippets do not expose complete electrical limit tables or a complete verified pin map, unspecified values are marked as [DATA_NEEDED] rather than inferred.
MK2308G-1HI - 133MHz Zero-Delay Buffer | Renesas Electronics
Renesas Electronics MK2308G-1HI is a 133 MHz zero-delay buffer with PLL bypass, one clock circuit, and CMOS output in a 16-pin TSSOP package. It operates from 3 V to 3.6 V, making it a 3.3 V clock-distribution component for systems requiring regenerated, low-skew clock signals. The device can source a clock directly from its input for testing or use its PLL-based zero-delay function for normal operation. A zero-delay buffer is a clock-and-timing IC that receives a reference clock and redistributes it through a phase-locked loop or equivalent edge-alignment architecture. The zero-delay designation indicates that the device compensates propagation delay between the reference input and its outputs so downstream circuits can receive closely aligned clock edges. Within the broader hierarchy, the MK2308G-1HI is a clock buffer, which is a clock-and-timing IC and, ultimately, a semiconductor used for system clock distribution and phase alignment. The principal verified features are a maximum operating frequency of 133 MHz, a 3 V to 3.6 V supply range, CMOS clock outputs, and PLL operation with bypass. The single-circuit configuration is useful when a board requires one regenerated clock rather than several independently buffered outputs. Its 16-pin TSSOP package is compatible with conventional surface-mount assembly, while its 4.40 mm stated package width supports compact PCB layouts where the TSSOP mechanical envelope is acceptable. The PLL-based architecture separates the reference source from the distributed clock output and enables zero-delay clock regeneration. PLL bypass provides a direct-input test path that can assist board bring-up and fault isolation. Actual timing performance depends on input-clock stability, output loading, trace geometry, supply integrity, and the selected operating mode, so engineers should consult the Renesas datasheet and evaluate the complete clock path rather than relying on the maximum frequency alone. Typical uses include processor and FPGA clock distribution, memory-interface clock support, communications equipment, industrial control systems, and test-and-measurement instruments. The part is particularly relevant to 3.3 V designs where a regenerated clock is needed to improve edge alignment or isolate a clock source from downstream loading. In each case, trace length matching, return-path continuity, and output-load budgeting remain important implementation considerations. For a new layout, reserve the TSSOP land pattern, route the reference clock away from high-current switching nodes, and provide the decoupling arrangement specified by the manufacturer. If the PCB cannot support controlled clock topology, replacing the device without changing routing may not resolve timing or signal-integrity issues. Confirm operating mode, load, frequency, and package details against the current Renesas documentation before release. This page consolidates verified distributor specifications, manufacturer datasheet information, practical clock-design guidance, and honestly qualified replacement references. It separates confirmed drop-in candidates from merely similar devices, helping engineers compare package and lifecycle constraints without treating cross-reference search results as guaranteed equivalents.
MK2308G-1HTR - 133MHz 1:8 Zero Delay Buffer | Renesas (Tape & Reel)
The Renesas Electronics MK2308G-1HTR is a 133 MHz zero-delay buffer with a 1:8 input-to-output ratio, PLL bypass capability, CMOS clock outputs, and eight low-skew outputs in a 16-TSSOP package. It is designed to distribute one clock input across eight outputs at speeds up to 133 MHz while operating from 3.3 V. The part can generate outputs through its PLL for zero-delay operation or bypass the PLL and route the input directly for testing. A zero-delay buffer is a clock and timing IC that compensates propagation delay introduced by clock distribution networks while distributing a single reference to multiple loads. It belongs to the broader hierarchy of clock buffers, clock distribution circuits, phase-locked-loop timing devices, and clock and timing integrated circuits. Its principal purpose is to provide multiple low-skew clock outputs to processors, memory interfaces, communications equipment, and other digital systems that require synchronized logic. The verified data identifies the MK2308G-1HTR as a zero-delay buffer IC with a maximum frequency of 133 MHz, one circuit, a 1:8 ratio, PLL functionality with bypass, clock input, and CMOS output. A distributor listing identifies the physical package as 16-TSSOP with a stated body width of 4.40 mm. The device can also drive its outputs in tri-state or stop them at a low level, useful for shared-bus and test-control architectures. Its PLL-based architecture is intended for low-skew output generation at 3.3 V. The bypass path allows the input clock to be observed without PLL multiplication or correction, which can simplify diagnostic and test setups. The output count enables one reference clock to feed eight destinations without replicating the clock source eight times, reducing routing complexity and helping maintain consistent timing across a board. Typical applications include processor clock distribution, memory clock fanout, communications infrastructure, test-and-measurement equipment, and digital systems requiring multiple synchronized outputs. When implementing the circuit, use the manufacturer-recommended decoupling capacitors and place them close to the power and ground pins. The Renesas MK2308-1H datasheet search result specifies 0.01 mF capacitors between VDD and GND at the stated power-pin pairs. This product page synthesizes the verified distributor specifications, manufacturer datasheet link, package information, and practical implementation guidance. Because the supplied source snippets do not expose complete electrical limit tables or a complete verified pin map, unspecified values are marked as [DATA_NEEDED] rather than inferred.
MK2308S-1H - 133MHz 8-Output Zero-Delay Buffer | Renesas
The Renesas Electronics MK2308S-1H is a PLL-based, eight-output CMOS zero-delay buffer rated to 133 MHz in a 16-SOIC surface-mount package. It operates from a 3.0 V to 3.6 V supply and provides eight low-skew outputs that can be sourced either through the PLL for zero-delay operation or directly from the input for testing. The verified device family information identifies 200 ps output skew and describes the part as a low-phase-noise, high-speed clock distribution device. A zero-delay buffer is a clock and timing IC that regenerates a reference clock through a phase-locked loop, compensating for clock-distribution delay while preserving frequency. In the hierarchy of electronic components, this device belongs to clock and timing integrated circuits, then PLL-based clock drivers, frequency-distribution circuits, and finally broader digital and power-management systems. It is used where multiple logic domains need closely related clock signals. Key verified features include a maximum clock frequency of 133 MHz, eight low-skew outputs, CMOS-compatible signaling, 3.0 V to 3.6 V operation, and selectable tri-state or stop-at-a-low output behavior. The PLL can be bypassed for testing or direct clock propagation. The available operating-temperature information identifies a 0°C to 70°C range, making the device suitable for commercial-temperature clock-distribution equipment. The low-skew output architecture helps maintain timing relationships across multiple destinations, which is important in networking, telecommunications, and computing systems. Its 3.3 V supply operation is compatible with systems designed around modern CMOS clock domains, while the SOIC package supports conventional surface-mount assembly and inspection. Typical uses include clock fan-out for communications equipment, synchronized digital logic, computing interfaces, test and measurement systems, and embedded control platforms. Designers should account for trace-length matching, output-enable control, bypass testing, and the required decoupling capacitors. The verified datasheet search result specifically calls for 0.01 uF capacitors near the device power pins. This page combines verified distributor and manufacturer information, cross-reference results, application guidance, and design considerations into an engineering-focused component record. It is intended to support purchasing decisions while clearly separating verified values from parameters requiring further datasheet confirmation.
MK2308S-1HI - 133MHz Zero Delay Buffer | Renesas | Clock IC
Renesas Electronics MK2308S-1HI is a PLL-based zero-delay buffer IC operating up to 133 MHz, with eight low-skew outputs and CMOS-compatible interfaces in a 16-pin SOIC package measuring 0.154 inches, or 3.90 mm, in width. Its verified supply-voltage range is 3 V to 3.6 V, and its specified industrial operating-temperature range is -40°C to 85°C. The device belongs to the clock-generator, PLL, frequency-synthesizer, and clock-buffer hierarchy within clock and timing ICs. A zero-delay buffer is a clock-distribution circuit that reproduces an input clock at multiple outputs while compensating for propagation delay through an internal phase-locked loop. It is used where a system must fan one clock source across several loads without introducing excessive output-to-output skew. The MK2308S-1HI can produce outputs from its PLL for zero-delay operation or directly from the input for testing. Its outputs can also be placed in tri-state or stopped-clock conditions, providing control functions useful in multi-domain clock trees. Key verified features include a maximum operating frequency of 133 MHz, eight outputs, one circuit, a PLL with bypass capability, and output skew of 200 ps. The CMOS bus interface supports integration with digital logic operating from the same 3.0 V to 3.6 V supply. The 16-SOIC surface-mount package provides a practical option for established through-hole-compatible board layouts and factory assembly processes. Technically, the device uses proprietary low-jitter PLL techniques to generate eight low-skew clock outputs. The PLL-based architecture is significant because it compensates for internal buffer propagation delay while distributing the clock. Direct-input bypass provides a diagnostic path for evaluating signal behavior without relying on the PLL-generated output mode. Output tri-state and stop-clock controls allow unused clock branches to be disabled or held according to system requirements. Typical applications include networking equipment, computing systems, telecommunications infrastructure, server clock trees, industrial control electronics, and communication modules. Its eight-output organization suits designs that must feed multiple clock domains, while the 133 MHz ceiling covers common legacy and industrial digital clocking requirements. The 3.3 V supply range also makes it suitable for systems whose logic rails are centered around 3.3 V. When laying out a circuit using the MK2308S-1HI, preserve short and symmetrical clock paths from the device to each destination and follow the manufacturer's decoupling and layout recommendations. Validate output timing at the receiver, especially when fanout, trace length, or capacitive loading changes. Because the verified data does not provide the complete pinout, output-enable truth table, or absolute timing limits, those details should be confirmed against the manufacturer datasheet before release. This page consolidates the verified Renesas and distributor information for the MK2308S-1HI, adds application-specific engineering context, identifies the available same-package comparison, and clearly separates confirmed specifications from parameters that still require datasheet verification.
MK2308S-1HTR - 133MHz 8-Output Zero-Delay Buffer | Renesas (Tape & Reel)
The Renesas Electronics MK2308S-1HTR is a PLL-based, eight-output CMOS zero-delay buffer rated to 133 MHz in a 16-SOIC surface-mount package. It operates from a 3.0 V to 3.6 V supply and provides eight low-skew outputs that can be sourced either through the PLL for zero-delay operation or directly from the input for testing. The verified device family information identifies 200 ps output skew and describes the part as a low-phase-noise, high-speed clock distribution device. A zero-delay buffer is a clock and timing IC that regenerates a reference clock through a phase-locked loop, compensating for clock-distribution delay while preserving frequency. In the hierarchy of electronic components, this device belongs to clock and timing integrated circuits, then PLL-based clock drivers, frequency-distribution circuits, and finally broader digital and power-management systems. It is used where multiple logic domains need closely related clock signals. Key verified features include a maximum clock frequency of 133 MHz, eight low-skew outputs, CMOS-compatible signaling, 3.0 V to 3.6 V operation, and selectable tri-state or stop-at-a-low output behavior. The PLL can be bypassed for testing or direct clock propagation. The available operating-temperature information identifies a 0°C to 70°C range, making the device suitable for commercial-temperature clock-distribution equipment. The low-skew output architecture helps maintain timing relationships across multiple destinations, which is important in networking, telecommunications, and computing systems. Its 3.3 V supply operation is compatible with systems designed around modern CMOS clock domains, while the SOIC package supports conventional surface-mount assembly and inspection. Typical uses include clock fan-out for communications equipment, synchronized digital logic, computing interfaces, test and measurement systems, and embedded control platforms. Designers should account for trace-length matching, output-enable control, bypass testing, and the required decoupling capacitors. The verified datasheet search result specifically calls for 0.01 uF capacitors near the device power pins. This page combines verified distributor and manufacturer information, cross-reference results, application guidance, and design considerations into an engineering-focused component record. It is intended to support purchasing decisions while clearly separating verified values from parameters requiring further datasheet confirmation.
MK2308S-2 - 133.3MHz Zero-Delay PLL Buffer | Renesas
The Renesas Electronics MK2308S-2 is a zero-delay PLL clock buffer operating up to 133.3 MHz, with one clock circuit and PLL bypass support in a 16-SOIC package measuring 0.154 inch, or 3.90 mm, wide. The device is intended for clock distribution and phase-alignment uses where outputs must support PLL operation or direct input-clock bypass. A zero-delay buffer is a clock and timing IC that uses a phase-locked loop to compensate propagation delay between an input clock and its outputs. In the broader hierarchy, this device belongs to clock generators, PLL-based frequency synthesizers, clock buffers, and timing ICs. Its CMOS output and bypass mode make it useful where clock distribution, testing, or phase alignment is required. The verified listing identifies the device as a zero-delay buffer with a maximum frequency of 133.3 MHz, one circuit, a 16-SOIC package, PLL operation with bypass, and clock input. The package is a surface-mount SOIC format with a stated width of 3.90 mm. These details identify the MK2308S-2 as a timing-integrity component rather than a general-purpose logic gate or power-management device. Because the supplied source material does not include a complete manufacturer electrical table, details such as supply voltage, output count, skew, jitter, propagation delay, temperature range, and exact pin names remain marked as data needed. Designers should consult the manufacturer datasheet and verify the pinout, voltage requirements, and timing limits before layout or production use. Typical uses include processor and FPGA clock distribution, communication-system clock conditioning, test-and-measurement clock networks, and general digital systems requiring low-skew clock fan-out. The supplied cross-reference data identifies MK2308S-2LF as a pin-compatible replacement candidate, while a comparison result also names CY2308SC-2T for evaluation. Both require package, timing, and application-specific verification rather than automatic substitution. For implementation, preserve short, controlled-impedance clock traces, provide the required bypass and decoupling capacitors, and keep the PLL input and outputs away from noisy high-current switching paths. Confirm whether bypass mode is required during startup or test before finalizing the system clock architecture. This page consolidates the verified distributor and datasheet-index information, replacement candidates, and practical design guidance to support component selection and PCB planning for the Renesas Electronics MK2308S-2.
MK2308S-2I - 133.3MHz Zero-Delay Buffer | Renesas
The Renesas Electronics MK2308S-2I is a 133.3 MHz PLL-based zero-delay buffer with one clock input, eight CMOS outputs, and a 16-SOIC surface-mount package. It operates from 3 V to 5.5 V and provides four divided outputs at one-half the input frequency, according to the available product and datasheet records. A zero-delay buffer is a clock and timing semiconductor that uses a phase-locked loop to reproduce a clock while compensating for propagation delay introduced by the buffer. In the broader hierarchy, it belongs to clock and timing ICs, frequency-control ICs, and PLL-based clock circuits. Its purpose is to supply multiple closely related clock outputs to high-speed digital systems. The available records identify the MK2308-2 family as a low-jitter, low-skew, PLL-based device intended for high-speed applications. The family description states that its eight outputs operate at speeds up to 133.3 MHz at 3.3 V. Four outputs are specified at one-half the input frequency, while the remaining outputs support zero-delay operation or direct clock bypass. The package is identified as a 16-SOIC measuring 3.90 mm wide. Because the target suffix denotes a specific ordering configuration, engineers should verify temperature grade, tube packaging, and production lifecycle status against current Renesas documentation before committing a new design. The verified web results establish the core function and several headline specifications, but they do not provide a complete parameter table, guaranteed timing limits, or an official manufacturer URL for this exact suffix. Typical uses include processor clock distribution, communications equipment, storage controllers, test systems, and other circuits requiring several outputs derived from one clock source. The divided bank can support lower-frequency peripherals while the undivided outputs serve the main digital domain. Independent output control may support testing and bus management, subject to the functions and limits stated in the datasheet. The principal design task is to verify clock-edge integrity at the intended voltage and frequency. Board traces should be short and return-current paths continuous, while PLL input and bypass connections must follow the manufacturer layout guidance. Probe or capacitance added by test equipment can alter edge rate and skew, so timing validation should include realistic loading. This page consolidates distributor availability, the Renesas MK2308-2 family description, package information, and replacement research. It also separates verified facts from missing production data so procurement and design teams can assess the MK2308S-2I without mistaking search snippets for a complete datasheet specification.