Renesas offers the broadest and deepest silicon timing portfolio in the industry. In addition to a wide range of oscillator, buffer and clock synthesizer products, we offer leading-edge system timing solutions to resolve timing challenges in wireless infrastructure, networking, data center, and consumer applications. By partnering with industry leaders and investing more in timing insert products than anyone else in the industry, Renesas is consistently at the forefront of PCIe timing solutions for the newest chipsets in the cloud/computing market.

  • VersaClock® portfolio delivers unparalleled solutions at the perfect balance of power, performance, functionality and price.
  • FemtoClock™ portfolio pushed technology to new performance levels, enabling customers to bring to market amazing technology.
  • ClockMatrix™ portfolio features highly integrated, digitally rich PLLs which form the backbone of synchronization in communications and other emerging markets.

Featured Timing Applications:


Crystal Oscillators

Programmable XOs with typical RMS phase jitter down to 120fs

Clock Distribution

Buffers, multiplexers, dividers and level translators

Clock Generation

Programmable PLL-based clock signal sources

Jitter Attenuators with Frequency Translation

PLL devices which clean and synchronize to a given reference

Application-Specific Clocks

Solutions optimized for the specific needs of targeted applications

VersaClock® Programmable Clocks

High-performance programmable clock generators to simplify system design


Type Title Date
Overview PDF 872 KB
Application Note PDF 70 KB
Overview PDF 2.40 MB
White Paper PDF 400 KB
Application Note PDF 1.92 MB
Application Note PDF 377 KB
White Paper PDF 276 KB
Application Note PDF 692 KB
Application Note PDF 256 KB
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News & Blog Posts

Semiconductor Industry Is Pulling AI Across a Diversity of End Uses and Applications Blog Post Jul 24, 2023
Renesas’ ClockMatrix System Synchronizer Delivers Class D Compliance for O-RAN S-Plane Requirements News Sep 28, 2022
The Low-Noise Power Supply for Timing and Clock ICs Blog Post Apr 25, 2022
Future-proof Your PCIe® Designs Blog Post Apr 14, 2022
Solving Common Issues with Respect to PCIe Timing Design on the Modern Server System Blog Post Apr 14, 2022
Renesas Introduces Industry’s First PCIe Gen6 Clock Buffers and Multiplexers News Apr 14, 2022
Renesas Introduces Second-Generation of ClockMatrix Family of Network Synchronizers and Jitter Attenuators for Optical and Wireline Networks News Dec 15, 2021
Renesas Expands ProXO Oscillator Portfolio for High-Performance Communications, and Data Center Applications News Sep 1, 2021
Benefits of a Point-of-Use Clock for Jitter Optimization Blog Post Apr 27, 2021
Renesas Expands FemtoClock Timing Portfolio for High-Performance Communications and Data Center Applications News Apr 26, 2021
Renesas Expands Communication Timing Portfolio for 4G/5G Radio News Mar 23, 2021
Renesas Expands Data Center Solutions Portfolio with Industry’s First CK440Q-Compliant Clock Generator for PCIe Gen5 and Beyond News Feb 4, 2021
Your Guide to Executing pcm4l Software Flawlessly Blog Post Jan 30, 2021
Board Space Is Key for Wearable Products Blog Post Jul 27, 2019
Faster Timing Design and Accurate Performance Testing with Jitter Measurement Utility Blog Post Jun 14, 2019
An Insider’s Guide to Finding the Right Timing Device for Your System Blog Post Dec 19, 2017