SiTime has entered the software market with the launch of its TimeFabric™ software suite, marking a major expansion beyond its MEMS-based precision timing hardware. TimeFabric integrates with SiTime’s oscillators and network synchronizers to deliver up to 9x better time synchronization accuracy than traditional quartz-based solutions—meeting the stringent demands of AI data centers and next-gen communication networks. This end-to-end timing platform includes two key modules: an IEEE 1588-compliant software stack for sub-nanosecond synchronization, and proprietary holdover extension software capable of maintaining accurate timing for up to 24 hours in the absence of GNSS or primary network clocks.
The TimeFabric suite is targeted at AI data center components such as SmartNICs, switches, routers, and accelerators, as well as telecom infrastructure including 5G remote radio heads and base stations. SiTime’s IEEE 1588 stack and servo enable up to 5X better sync accuracy than ITU-T Class D specifications, achieving <1 ns time error under dynamic temperature shifts. The holdover software—when paired with devices like the SiT5811 or SiT7101—extends the duration over which oscillators maintain tight timing tolerances, crucial for infrastructure resiliency during reference clock outages. Unlike legacy solutions requiring bulky, power-hungry 1PPS-disciplined oscillators, SiTime’s OCXO-based approach is 25X smaller and 3X lower in power.
With TimeFabric, SiTime positions itself as the only vendor offering a full precision timing stack—hardware and software—backed by system-level integration expertise. This vertically integrated model accelerates customer time to market and improves system-level reliability, especially in temperature-variable, synchronization-sensitive deployments. The software is available now for use with SiTime OCXOs, TCXOs, and network synchronizers.
- Delivers up to 9X better sync accuracy than quartz-based systems
- IEEE 1588-2019 stack supports full timeTransmitter/timeReceiver, hardware timestamping, and SiTime device drivers
- Holds accurate time for up to 24 hours during GNSS or network sync outages
- Software upgradeable—extends hardware lifespan without board redesign
- Supports AI data centers, 5G RAN, FWA, and telecom backhaul/core equipment
“At SiTime, we help our customers resolve their complex timing problems for the world’s most advanced technologies,” said Rajesh Vashist, chairman and CEO of SiTime. “With the introduction of TimeFabric, SiTime further strengthens its role as an indispensable partner, delivering enduring value to our customers and driving our leadership in the timing industry.”
