SiTime, Silicon MEMS Oscillators and Clock Generators

SiT8009B High Frequency, Low Power Oscillator

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The SiT8009B is the industry's lowest power high frequency oscillator with LVCMOS/LVTTL compatible output. Its 5.5mA typical current consumption (in 1.8V) enables greener electronics without compromising performance. It provides the perfect combination of low power consumption, excellent stability, flexible operating voltage, small size and shortest lead time for large volume portable and consumer applications.

For the same device in a SOT23-5 package, refer to the SiT2002B clock generator.



Frequency Range (MHz) 115 - 137
Frequency Stability (PPM) ±20, ±25, ±50
Temp Range (°C) -20 to +70, -40 to +85
Supply Voltage (V) 1.8, 2.5 to 3.3
SoftEdge Rise/Fall Time (ns) 1 to 6 ns (configurable)
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
  • GPON
  • EPON
  • Ethernet
  • SSD
  • Storage server
  • PCI
  • PCI-E
  • DDR

Features Benefits
  • Lowest power consumption of any high frequency oscillators
    • 5.5 mA typical active current (1.8V)
    • 1 uA typical standby current (1.8V)
  • Extends battery life
  • Enables greener electroncis
  • Small 2016 & 2520 packages for all frequencies, voltages and stability
  • Save more board space without compromising performance and availability
  • Configurable feature sets
    • Any frequency between 115 to 137 MHz with 6 decimal places of accuracy
    • Stability from ±20PPM to ±50PPM
    • Industrial or extended commercial temp
    • 1.8V or 2.5V to 3.3V supply voltage
  • Customize specification for optimal system performance
  • Use same base device for many design, reducing qualification needs
  • SoftEdgeTM configurable drive strength
  • Slower rise/fall time that minimizes EMI from the oscillator
  • Saves cost by driving multiple loads and eliminate additional timing components
  • Ultra fast lead time (3-5 weeks)
  • Reduce inventory overhead
  • Mitigate shortage risks


9. Contact SiTime for custom drive strength to drive higher or multiple load, or SoftEdge™ option for EMI reduction.

Ordering Codes for Supported Tape & Reel Packing Methods[10]


10. For “–”, contact SiTime for availability.


Measured Performance Reports on SiT8009B

The following PDF report contains details of actual measurements on SiTime devices at the frequencies mentioned below and are intended to supplement the datasheet. Measurement conditions and equipment are specified in the individual files. If you desire a more detailed report than the ones provided below, please contact your local SiTime sales representative or email salessupport@sitime.com.

icon 125MHz LVCMOS (295.2 kB)


1.8V LVCMOS IBIS icon SiT8009 1p8v
2.5V LVCMOS IBIS icon SiT8009 2p5v
2.8V LVCMOS IBIS icon SiT8009 2p8v
3.0V LVCMOS IBIS icon SiT8009 3p0v
3.3V LVCMOS IBIS icon SiT8009 3p3v
2.25V - 3.63V LVCMOS IBIS icon SiT8009 xx