SiTime, Silicon MEMS Oscillators and Clock Generators

SiT8503: High Performance 200kHz - 1000kHz Programmable Oscillator

E-mail Print

The SiT8503 is the industry’s first programmable oscillator optimized for kHz applications. It comes in four standard packages to enable drop-in replacement of quartz without PCB re-design.



Frequency Range (kHz) 200 – 1000 (Contact SiTime for frequencies less than 200 kHz)
Frequency Stability (PPM) ±20, ±25, ±30, ±50
Temp Range (°C) -20 to +70, -40 to +85
Supply Voltage (V) 1.8, 2.5, 2.8, 3.3
Package LxWxH (mm) 2.5x2.0x0.75, 3.2x2.5x0.75, 5.0x3.2x0.75, 7.0x5.0x0.9
Status Full Production
  • Audio amplifiers
  • Low speed Serial I/O
  • MCU clocking

Features Benefits
  • Extensive programmability
    • Frequency up to 1000 kHz with 5 decimal place accuracy
    • Stability as good as ±20 PPM
    • Supply voltage of 1.8V or 2.5V to 3.3V
    • Output load options (30pF or higher)
  • Customize device specification for optimal system designs
    • Improve your overall timing margin with ±20 PPM stability
    • Reuse the same base product across all your applications to reduce qualification time
  • Low power consumption
    • 5.9 mA typical active current
    • <5 µA standby current
  • Greener electronics devices
    • Longer battery life
  • Four standard industry packages
  • Drop-in replacement of Quartz without PCB re-design
  • Small packages that are not easily available from quartz
  • Save board space
  • Ultra fast lead time (3-5 weeks)
  • Reduce inventory overhead
  • Mitigate shortage risks


Contact SiTime for different drive strength options for driving higher loads or reducing EMI.