Clocks & Timing

Renesas delivers the industry’s broadest and deepest silicon timing portfolio, spanning oscillators, buffers, and advanced clock synthesizers. Our leading-edge timing solutions address complex challenges across wireless infrastructure, networking, data center, industrial, and consumer markets. Backed by strong industry partnerships and ongoing investment in timing innovation, we provide cutting-edge PCIe clocking solutions aligned with the newest cloud and computing chipsets.

Product Portfolio

Application-Specific Clocks

Solutions optimized for the specific needs of targeted applications

Clock Distribution

Buffers, multiplexers, dividers and level translators

Clock Generation

Programmable PLL-based clock signal sources

Crystal Oscillators

Programmable XOs with typical RMS phase jitter down to 120fs

Jitter Attenuators with Frequency Translation

PLL devices which clean and synchronize to a given reference

Industrial Applications

We deliver the industry’s most comprehensive timing IC portfolio for demanding industrial systems. Our solutions support communications, industrial control, automotive infotainment, factory automation, medical devices, and POS terminals—ensuring reliable performance for harsh environments and strict design requirements.

Key Features:

Durable Performance: Industrial-grade temperature options for reliable operation in harsh conditions
High Precision: Low phase noise and excellent spurious performance for accurate, stable clocking
Integrated Design: Built-in resistors and voltage regulation for fewer external components
Energy Efficient: Operation at 1.2V or 1.5V to minimize system power
Scalable Options: Flexible board designs with multiple I/O counts and package options

Data Center & PCI Express Timing

Renesas has led PCI Express timing innovation from Gen1 through Gen7. We deliver clocking solutions for everything from personal PCs to hyperscale data centers. Our low-power architectures, flexible PLL options, and deep CPU-platform expertise help meet tightening jitter budgets, shrinking board space, and cost constraints.

Key Highlights:

Comprehensive PCIe Support: Clocking solutions for PCIe Gen1–Gen7
Low-Power Operation: Very-low-power PCIe clock generators (1.8V/1.5V) and ultra-low-power LP-HCSL outputs (up to 85% less power)
Flexible Architectures: Multi-PLL clock generators supporting diverse high-speed interfaces—PCIe, SATA, USB, SAS, DMI, QPI, HyperTransport, Ethernet, and more
Platform Expertise: Optimized for leading CPU platforms across PC, server, and cloud architectures

Get Started with Clock Configuration Tools

PTP Clock Manager for Linux

Achieve precise network synchronization with a Linux-based solution supporting IEEE 1588 and Sync-Ethernet. Advanced packet-delay-variation filtering enables fast deployment of timeTransmitter or timeReceiver clocks for both telecom and non-telecom applications.

IC Toolbox for Clock & Kit Setup

A graphical platform that streamlines evaluation kit and clock device setup. Supports OTP/EEPROM programming, profile creation, and reference designs—helping you bring complex timing systems online faster.