MK2304S-2 - 133MHz Zero-Delay Buffer | Renesas | Clock
MPN: MK2304S-2 ✓ Active| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
MK2304S-2 Overview
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.
Drop-in alternatives for MK2304S-2 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
CY2304SXC-1
✅ Drop-In📋 Reference alternative (not in catalog)
MK2304S-2 Specifications
| Product Type | PLL-based zero-delay buffer |
| Maximum Frequency | 133 MHz |
| Number of Circuits | 1 |
| Input Type | Clock |
| Output Type | CMOS |
| Input-to-Output Ratio | 1:1 |
| Supply Voltage Range | 3 V to 3.6 V |
| Operating Temperature Range | 0°C to 70°C |
| Package | 8-SOIC |
| Package Width | 0.154 inch (3.90 mm) |
| Mounting Type | Surface mount |
| Decoupling Recommendation | 0.1 µF between VDD and GND |
| PLL | Yes |
| Skew Class | Low skew |
| Jitter Class | Low jitter |
MK2304S-2 0.154 inch (3.90 mm) Pin Configuration Guide
Pin configuration for MK2304S-2 (0.154 inch (3.90 mm) package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for MK2304S-2.
Refer to the datasheet for full pin configuration.
Typical Applications
MK2304S-2 is suitable for 6 applications: CMOS Digital Clock Distribution, Embedded Processor Clock Compensation, Communications Equipment Clock Skew Control, Industrial Control Logic Timing, Data Converter Synchronization, Test and Measurement Timing Reference.
CMOS Digital Clock Distribution
The MK2304S-2 fits single-clock CMOS distribution when the design operates below its verified 133 MHz maximum and within the 3 V to 3.6 V supply range. Place the buffer close to the receiving logic when board delay contributes to clock skew, and use the manufacturer's recommended 0.1 µF VDD-to-GND capacitor nearby. The unity input-to-output ratio preserves frequency while the PLL-based zero-delay function addresses relative timing. Because exact drive current and load capacitance are not supplied here, validate output rise time, settling, and receiver timing with the production load rather than treating the nominal 133 MHz rating as unlimited fanout capability.
Recommended
Embedded Processor Clock Compensation
The MK2304S-2 can compensate propagation delay between a system clock source and an embedded controller when skew, rather than frequency, is the limiting concern. Its verified single CMOS circuit and 1:1 ratio suit a point-to-point branch, while the 8-SOIC package is straightforward to route on a conventional mixed-signal PCB. Use scope measurements to compare source and receiver edges under temperature and loading. Do not assume a direct relationship to STM32 or other processor clock-input limits without checking the processor datasheet, especially because processor families use different maximum input frequencies and timing tolerances.
Recommended
Communications Equipment Clock Skew Control
In communications equipment, the MK2304S-2 can correct relative clock delay between a common timing source and sensitive digital circuitry when all nodes meet the verified 3 V-to-3.6 V supply and 0°C-to-70°C temperature limits. The low-skew description makes it relevant to edge-sensitive receivers, converters, and serializers, but the actual design benefit must be established with output and receiver measurements. Keep the clock branch short, use a continuous reference plane, and model connector, package, and trace variation. Network transceivers may impose stricter jitter limits than the supplied record states, so their individual datasheets must be checked.
Recommended
Industrial Control Logic Timing
The MK2304S-2 can be used in indoor industrial control systems when the enclosure remains within the verified 0°C-to-70°C operating range and the 3 V-to-3.6 V rail is clean. Place the 0.1 µF decoupling capacitor close to VDD and GND, and route the output away from high-current switching nodes to reduce coupled noise. Its zero-delay architecture helps align clock edges across control and monitoring sections, but no verified industrial or automotive qualification is provided. Qualification status, EMC requirements, and environmental exposure must therefore be evaluated independently before deployment in safety-related or harsh installations.
Recommended
Data Converter Synchronization
The MK2304S-2 can align a sampling clock to compatible CMOS data-converter circuitry when both devices operate from compatible supplies and the converter's sampling-edge requirements are known. A single-clock, 1:1 buffer path is appropriate when one distributed edge drives a small, controlled load. Keep routing symmetric and isolate aggressive return currents from the clock trace, especially around converters and switching regulators. The supplied evidence does not provide output capacitance, RMS jitter, or cycle-to-cycle jitter limits, so converters must be evaluated for aperture requirements and timing margin using their complete manufacturer documentation.
Recommended
Test and Measurement Timing Reference
The MK2304S-2 can distribute or deskew a reference clock in bench and test equipment whose clock rate is at or below the verified 133 MHz maximum and whose ambient temperature remains within 0°C to 70°C. Its single CMOS output favors one controlled branch rather than fanout to many uncorrected loads. Place the decoupling capacitor near the supply pins, use a low-inductance ground connection, and probe edge timing at the receiving test point. Exact propagation-delay and jitter values are absent from the supplied records, so calibration routines must not rely on assumed timing constants without measuring the assembled production unit.
Recommended
Recommended Products Summary
Engineering reference data for MK2304S-2 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | CY2304SXC-1 |
|---|---|---|
| Brand | Renesas Electronics | Cypress Semiconductor |
| Package | 8-SOIC, 0.154 inch (3.90 mm) wide | SOIC-8 |
| Product Type | PLL-based zero-delay buffer | Zero-delay buffer replacement candidate |
| Pin Compatibility | 8-SOIC | Verified comparison reports consistent terminals and package |
Key Differentiators
- Verified maximum operating frequency (vs CY2304SXC-1)
- Verified supply range for design planning (vs CY2304SXC-1)
- Verified commercial availability signals (vs CY2304SXC-1)
Design Notes
Renesas recommends a 0.1 µF capacitor between VDD and GND, placed as close as possible to the part. Use the shortest practical connection and a continuous ground reference to reduce loop inductance. If the regulator is remote, evaluate an additional local bypass strategy against the manufacturer's stability guidance rather than adding capacitance indiscriminately. Confirm the 3 V-to-3.6 V supply at the IC under clock transitions, because a nominal rail does not guarantee adequate local transient response.
Treat the clock trace as a controlled-impedance timing path. Keep it short, route over a continuous reference plane, minimize stubs and test pads, and keep noisy switching currents away from the output. Use matched geometry for multi-branch clock distribution only when receivers, loads, and termination requirements are known. Validate edge rate, settling, and source-to-receiver skew at the production load and temperature because the supplied excerpts do not provide exact propagation-delay, jitter, or output-drive limits.
Do not substitute CY2304SXC-1 solely because a comparison reports a matching SOIC-8 package and consistent terminals. Before approval, compare the complete Renesas and Cypress pin assignments, supply range, maximum frequency, propagation delay, input capacitance, output drive, jitter, skew, temperature range, and lifecycle status. The verified data supports the candidate relationship but does not provide enough numerical data to claim identical worst-case behavior. Record both manufacturer part numbers in the approved-vendor list only after engineering sign-off.
Compliance Information
The supplied web records do not provide verified RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations for MK2304S-2. The standard commercial ordering code must not be assumed to be automotive qualified.