SiTime's TempFlat MEMS™ technology combined with our mixed-signal CMOS design capabilities enables an ultra-low-power, factory-programmable oscillator in a 1.2 mm2 chip-scale package – the world's smallest footprint. Typical core supply current is only 3.3 μA at 100 kHz. With the ability to provide any frequency between 1 Hz and 462.5 kHz, the SiT1569 guarantees ±50 ppm all-inclusive (initial and over temperature) frequency stability.


1 Hz to 462.5 kHz
Frequency Stability (ppm)
Operating Temperature Range (°C)
-20 to +70, -40 to +85
Oscillator Type
Hz to MHz XO
Output type
Package Type (mm²)
Low power
Voltage Supply (V)
1.62 to 3.63
  • Smart medical monitors
  • Industrial sensors
  • Analog front-end (AFE) reference clocks
  • Medical electronics
  • Remote sensing


Features & Benefits

±50 ppm all-inclusive frequency stability

  • Improved accuracy provides better frequency margin across all operating conditions and extremes

Smallest footprint in chip-scale (CSP)

  • 1.5 x 0.8 mm: Saves board space

Ultra-low power: 3.3 µA at 100 kHz

  • Maximizes battery life

Factory-programmable frequency range: 1Hz to 462.5 kHz

  • Maximum architectural options for a µPower reference clock

Internal VDD supply filtering

  • Eliminates external VDD bypass capacitor to maintain ultra-small footprint


Quality Documents

Additional Resources