SiTime offers active MEMS resonators and embedded MEMS resonators that deliver superior reliability and performance advantages not available from traditional ceramic or quartz XTALs – all in a tiny form factor. These resonators are vacuum sealed at the wafer level to provide an ultra-clean device with very high Q.

Our active MEMS resonators can replace 4-pin SMD crystal mount resonators to deliver greater flexibility, performance, and reliability.

Our embedded MHz and kHz MEMS resonators provide the unique ability to be co-packaged inside common packages such as QFNs and onto SiPs or modules along with high-performance semiconductor die, eliminating discrete timing components and simplifying design and manufacturing.

MHz MEMS Resonator

Active Resonators

SiTime XCalibur™ active resonators are designed to replace 4-pin SMD crystal resonators in demanding applications such as automotive, industrial, and enterprise equipment. They provide excellent stability over a wide temperature range, greater reliability, reduced BOM, and ease of design. With short lead times and the elimination of design issues related to quartz crystal resonators – such as cold startup, EMI problems, the need for motional impedance (ESR) and negative resistance testing at every design and layout cycle – these active resonators simplify design and reduce time to market. These resonators also eliminate the need for tuning capacitors required for parallel resonant XTALs. And as an active device, they can drive two clock inputs, further reducing component count.

Device Request Datasheet Buy Now Frequency Total Freq. Tolerance (ppm) Temp. Range(°C) Size(mm)
SiT1408 Buy Now 1 to 110 MHz -20 to +70 -40 to +85 2.5x2.0 3.2x2.5
SiT1409 Buy Now 115 to 137 MHz -20 to +70 -40 to +85 2.5x2.0 3.2x2.5
SiT1418 Buy Now 1 to 110 MHz -40 to +105 -40 to +125 -40 to +150 (Contact SiTime) 2.5x2.0 3.2x2.5
SiT1419 Buy Now 115 to 137 MHz -40 to +105 -40 to +125 -40 to +150 (Contact SiTime) 2.5x2.0 3.2x2.5
SiT1420 Buy Now 1 to 110 MHz -55 to +125 -40 to +150 (Contact SiTime) 2.5x2.0 3.2x2.5
SiT1421 Buy Now 119 to 137 MHz -55 to +125 -40 to +150 (Contact SiTime) 2.5x2.0 3.2x2.5
SiT1424 Buy Now 1 to 110 MHz -40 to +85 -40 to +105 -40 to +125 -55 to +125 -40 to +150 (Contact SiTime) 2.5x2.0 3.2x2.5
SiT1425 Buy Now 115 to 137 MHz -40 to +85 -40 to +105 -40 to +125 -55 to +125 -40 to +150 (Contact SiTime) 2.5x2.0 3.2x2.5
MHz MEMS Resonator

Embedded MEMS Resonators

SiTime TempFlat MEMS™ embedded resonators, with a tiny 0.18 mm2 footprint, are up to 85% smaller than typical quartz crystal resonators. These resonators come in popular MHz and kHz frequencies. They are uniquely intended to be integrated into standard IC packages, SIPs, or modules to simplify design and manufacturing. They offer better reliability, higher performance, and environmental resilience in a small size. By replacing traditional crystal resonators, these MEMS devices significantly reduce board space, improve system reliability and robustness, and can reduce system power consumption.

Contact SiTime for more information.