The SiT1532 is the world's smallest, lowest power 32 kHz oscillator optimized for mobile and other battery-powered applications. SiTime's silicon MEMS technology enables the smallest footprint and chip-scale packaging. This device reduces the 32 kHz footprint by as much as 85% compared to existing 2.0 x 1.2 mm SMD XTAL packages. Unlike XTALs, the SiT1532 oscillator output enables greater component placement flexibility and eliminates external load capacitors, thus saving additional component count and board space. And unlike standard oscillators, the SiT1532 features NanoDrive™, a factory-programmable output that reduces the voltage swing to minimize power.

32.768 kHz
Frequency Stability (ppm)
75, 100, 250
300mV to 700mV, full swing LVCMOS
Operating Temperature Range (°C)
-10 to +70, -40 to +85
Oscillator Type
32kHz XO
Output type
LVCMOS, NanoDrive™
Package Type (mm²)
Smallest size
Voltage Supply (V)
1.2 to 3.63
  • Smartphone
  • Tablets
  • Health and wellness monitors
  • Fitness watches
  • Sport video camcorders
  • Wireless keypads
  • Ultra-small laptop
  • RTC reference clock
  • Medical monitoring
  • Battery management timekeeping
  • Retail Electronics
  • Remote Sensing
  • Long-Range Communications
  • Asset Tracking
  • Smart Farming
  • Smart City
  • Smart watches
  • Fitness Tracker
  • Mobile Accessories
  • Glasses
  • Consumer Electronics
  • VR & AR
  • Home Automation


Features & Benefits

Smallest footprint in chip-scale (CSP)

  • 1.5 x 0.8 mm: Saves board space

Nano-Power: 900 nA (typ.)

  • Extends battery life

Operates down to 1.2 V

  • Supports coin-cell or supercap battery-backup

NanoDrive™ reduced swing oscillator output

  • Directly interfaces to XTAL IN pin (Oscillator input)
  • Programmable output swing minimizes power
  • Oscillator output eliminates load capacitors

No load or VDD filter capacitors

  • Eliminates all external capacitors
  • Eliminates load-dependent startup issues common with quartz XTAL

<100 ppm frequency stability over -40 °C to +85 °C temp. range

  • 2x better stability compared to quartz
  • Improves wireless connectivity and RTC accuracy


Quality Documents

Additional Resources