SiTime, Silicon MEMS Oscillators and Clock Generators

SiT1566 Super-TCXO

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 SiTime's TempFlat MEMS(TM) technology enables the first 32 kHz ±5 PPM Super-TCXO in a 1.2mm2 chip-scale package, the world's smallest footprint. Typical core supply current is only 4.5μA. The SiT1566 is factory calibrated over multiple temperature points to guarantee extremely tight ±5 PPM all-inclusve frequency stability.




Frequency (kHz) 32.768
Frequency Stability (PPM)
Temp Range (°C) -20 to +70, -40 to +85
Supply Voltage (V) 1.8 ±10%

Package LxWxH (mm) 1.5 x 0.8 x 0.6
Status Sampling
  • Smart Watches 
  • Health & Wellness Monitors
  • Internet of Things (IoT)

Features Benefits
  • ±5 ppm frequency stability over temperature
  • Improved local timekeeping and improved system power with less dependency on network timekeeping updates with mobile and wearable devices
  • Smallest footprint in chip-scale (CSP): 1.5 x 0.8 mm
  • Saves board space
  • Ultra-low power: 4.5 µA (typ)
  • Maximizes battery life
  • Low jitter 4 nsRMS Integrated Phase Jitter (IPJ)
  • Suitable for audio applications
  • Internal VDD supply filtering
  • Eliminates external VDD bypass capacitor to maintain ultra-small footprint
  • Drives multiple Loads
  • Eliminates multiple discrete XTALs + load caps




Part number characters in blue represent the customer specific options. The other characters in the part number are fixed.



Reliability Report Composition Reports
Available May 2016
icon WLCSP Package Composition Report