SiTime, Silicon MEMS Oscillators and Clock Generators

SiT8918B: 1-110 MHz, High Temperature Oscillator

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EP 2015The SiT8918B provides a perfect combination of wide frequency range (1 MHz to 110 MHz), excellent stability (±20 PPM) and wide temperature range (-40 to 125°C) in the smallest 2.0x1.6 mmxmm package that is not readily available from quartz. This device also features the industry's best vibration sensitivity, and shock and vibration resistance.

The SiT8918 comes in industry standard packages and footprints, and therefore replaces quartz without any design changes.

For the same device in a SOT23-5 package, refer to the SiT2018B clock generator.


Freq. Range (MHz)
1.000000 to 61.222999
92.155001 to 94.248999
61.674001 to 69.795999
94.430001 to 94.874999
70.485001 to 79.062999
94.994001 to 97.713999
79.162001 to 81.427999
98.679001 to 110.00000
82.232001 to 91.833999
Freq. Stability (PPM) ±20, ±25, ±30, ±50
Temp Range (°C) -40 to +105, -40 to +125
Vibration Sensitivity 0.1 ppb/g (G-sensitivity)
Configurable Rise/Fall Time 0.25 to 40 ns (output load and voltage dependent)
Supply Voltage (V) 1.8, 2.5 to 3.3
Package LxWxH (mm) 2.0x1.6x0.75, 2.5x2.0x0.75, 3.2x2.5x0.75, 5.0x3.2x0.75, 7.0x5.0x0.9
Status Production
  • Industrial sensors
  • Motor servo
  • Industrial control systems
  • Set-top-boxes
  • Backup cameras
  • Collision avoidance systems
  • Outdoor systems
  • Set-top-boxes
  • High temp networking gears
  • Automotive xtal replacement
  • Automotive black boxes

Features Benefits
  • Unique combination of
    • ±20 PPM
    • automotive temp (-40 to 125 °C)
    • smallest package (2.0 x 1.6 mmxmm)
  • Better timing margin ideal for space constrained, outdoor and high temp operating environment
  • 0.1 ppb/g low vibration sensitivity
  • Improved system performance under vibration
  • Simpler carrier drop-test compliance (STB, etc.)
  • 70 g shock and 50 kg vibration
  • Best system relability in harsh environment
  • Programmable drive strength
  • Slower rise/fall time that minimizes EMI from the oscillator
  • Lower cost by driving multiple loads and eliminate additional timing components
  • 5 industry standard package
  • 100% drop in repalcement of quartz XO
  • Ultra fast lead time (2 to 4 weeks)
  • Reduce inventory overhead
  • Mitigate shortage risks




List of Supported Frequencies


14. Any frequency within the min and max values in the above table are supported with 6 decimal places of accuracy.
15. Please contact SiTime for frequencies that are not listed in the tables above.

Ordering Codes for Supported Tape & Reel Packing Method



1.8V LVCMOS IBIS icon SiT8918 1p8v
2.5V LVCMOS IBIS icon SiT8918 2p5v
2.8V LVCMOS IBIS icon SiT8918 2p8v
3.0V LVCMOS IBIS icon SiT8918 3p0v
3.3V LVCMOS IBIS icon SiT8918 3p3v
2.25V - 3.63V LVCMOS IBIS icon SiT8918 xx