Specs Value
Device Type Spread Spectrum Oscillators
66.6667 MHz
Frequency Stability (ppm)
Operating Temp. Range (°C)
-20 to 70
Supply Voltage (V)
Package Size (mm x mm)
Output Drive Strength*
Feature Pin
Spread Percentage

*See datasheet for details

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Unit Pricing
Unit Count Unit Cost
1 - 99 $6.006
100 - 499 $2.636
500 - 999 $1.81
1,000 - 4,999 $1.435
>4,999 Contact Us
Available for sale in cut tape packaging. Some orders with quantities less than 50 pieces may be shipped in ESD zip bags. To order quantities greater than 5,000, please contact SiTime Sales or use the Chat below.
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Flexible spread options supporting up to 12 dB EMI reduction

  • Center spread percentage: ±0.25% and ±0.5% 
  • Down spread percentage: -0.5% and -1.0%: Up to 12dB EMI reduction

Best cycle-to-cycle jitter of < 30 ps

  • Minimizes impact to system timing budget;

Lowest power consumption of any programmable oscillator

  • 3.5 mA typical power consumption
  • 1.2 µA typical standby current:
  • Extends battery life
  • Reserves more power budget for system designers

3 ms typical resume time

  • Enables system to go in and out of standby mode quickly, conserving battery power

Extensive programmability

  • Any frequency between 1 to 110 MHz with 5 decimal place accuracy
  • Supply voltage of 1.8 V, 2.5 V, 2.8 V and 3.3 V
  • Frequency stability from ±50 ppm to ±100 ppm
  • Adjustable rise/fall time:
  • Provide designers the opportunity to use the same base product for many designs
  • Customize specification for optimal system performance
  • Configurable slew rate, enabling additional EMI control
  • Re-use of the same base product for many designs

Four Industry-standard packages

  • 100% drop-in replacement of crystal oscillators

  • Enables EMI reduction without board redesign, metal housing or other expensive EMI reduction methods

Ultra-fast lead time (4 to 6 weeks)

  • Reduce inventory overhead
  • Mitigate shortage risks


  • Surveillance cameras
  • IP cameras
  • Automotive ADAS cameras
  • Industrial motors
  • Flat panels
  • Multi-function printers
  • PCIe

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Frequency Slope (dF/dT) Calculator – Calculate frequency slope over temperature

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2520 4-Pins | 3225 4-Pins | 5032 4-Pins 7050 4-Pins | 7050 4-Pins with CP– Preview packages with QFN 3D step models

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Resource Name Type
SiT9003 (LVCMOS, 1.8 V) IBIS Models
SiT9003 (LVCMOS, 2.8 V) IBIS Models
Silicon MEMS Reliability and Resilience Presentations
Performance Comparison: Silicon MEMS Verses Quartz Oscillators Presentations
How to Measure Clock Jitter in Precision Timing Applications Presentations
How to Measure Phase Jitter and Phase Noise in Precision Timing Applications Presentations
How to Get Instant Oscillators with SiTime's New Field Programmer Presentations
Silicon MEMS vs Quartz Supply Chain Presentations
MEMS Timing Solutions Improve Touchscreen Devices White Papers
Field Programmable Timing Solutions for Medical Applications White Papers
MEMS oscillators improve reliability and system performance in motor control applications White Papers
MEMS-Based Resonators and Oscillators are Now Replacing Quartz Presentations
Getting In Touch with MEMS: The Electromechanical Interface Presentations
SiT9003 Datasheet Datasheets
Time Machine II MEMS Oscillator Programmer Product Briefs
J-AN10002 シングルエンド発振器の推奨終端方法 Application Notes
AN10002 Termination Recommendations for Single-ended Oscillator Driving Single or Multiple Loads Application Notes
J-AN10005 SiTimeスペクトラム拡散クロック発振器 Application Notes
J-AN10006 発振器のPCBデザインのガイドライン Application Notes
AN10006 Best Design and Layout Practices Application Notes
J-AN10007 クロックジッタの定義と測定方法 Application Notes
J-AN10022 SiTime発振器SiT8103、SiT8003、SiT9003の 立ち上がり/立ち下がり時間調整 Application Notes
AN10022 Rise and Fall Time Selection for SiT8103, SiT8003, and SiT9003 Application Notes
SiTime発振器の信頼性計算方法 Technology Papers
AN10025 Reliability Calculations for SiTime Oscillators Application Notes
J-AN10028 プローブを使用した発振器の出力波形計測方法 Application Notes
AN10028 Probing Oscillator Output Application Notes
MEMSおよび水晶ベース発振器の電磁場感受率の比較 Technology Papers
Electromagnetic Susceptibility Comparison of MEMS and Quartz-based Oscillators Technology Papers
MEMS発振器と水晶発振器の性能比較(耐衝撃と耐振動) Technology Papers
Shock and Vibration Comparison of MEMS and Quartz-based Oscillators Technology Papers
J-AN10033 発振器の周波数測定ガイドライン Application Notes
AN10033 Frequency Measurement Guidelines for Oscillators Application Notes
シリコンMEMS発振器の耐性および信頼性 Technology Papers
Resilience and Reliability of Silicon MEMS Oscillators Technology Papers
SiTimeの MEMS First™ プロセス技術 Technology Papers
SiTime's MEMS First™ and EpiSeal™ Processes Technology Papers
The top 8 reasons to use an oscillator instead of a crystal resonator White Papers
EMI Reduction Oscillators for Industrial, Automotive and Consumer Applications Product Briefs
MEMS Resonator Advantages - How MEMS Resonators Work Part 2 Presentations
How to Measure Long-term Jitter and Cycle-to-cycle Jitter in Precision Timing Applications Presentations
Silicon MEMS Oscillator Frequency Characteristics and Measurement Techniques Presentations
AN10005 Spread Spectrum Clock Oscillators Application Notes
SC-AN10007 时钟抖动定义与测量方法 Application Notes
SC-AN10033 振荡器频率测量指南 Application Notes
Phase Noise Measurement Tutorial Videos
PCI Express Refclk Jitter Compliance using a Phase Noise Analyzer Presentations
Advantages of MEMS Timing - Parameters Videos
SiTime MEMS Oscillators - Revolutionizing the Timing Market Videos
SiTime's Time Machine II - Part 1: How to Install Oscillator Programming Software Videos
SiTime's Time Machine II - Part 2: How to Program Field Programmable Oscillators Videos
QFN 2520 4-Pins 3D Step Models
QFN 3225 4-Pins 3D Step Models
QFN 5032 4-Pins 3D Step Models
QFN 7050 4-Pins 3D Step Models
QFN 7050 4-Pins with CP 3D Step Models
SiTime MEMS First 工艺 Technology Papers
SiTime MEMS First 工艺 Application Notes
AN10073 How to Setup a Real-time Oscilloscope to Measure Jitter Application Notes
AN10071 Computing TIE Crest Factors for Telecom Applications Application Notes
AN10070 Computing TIE Crest Factors for Non-telecom Applications Application Notes
AN10072 Determine the Dominant Source of Phase Noise, by Inspection Application Notes
AN10074 Removing Oscilloscope Noise from RMS Jitter Measurements Application Notes
Mining and Construction Equipment Application Briefs
AN23033 Thermal Considerations for SiTime Products Application Notes
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  • SIT9003AC-33-33ED-66.66670T
  • SIT9003AC-33-33ED-66.66670D
  • SIT9003AC-33-33ED-66.66670E
  • SIT9003AC-33-33ED-66.66670X
  • SIT9003AC-33-33ED-66.66670N
  • SIT9003AC-33-33ED-66.66670F
  • SIT9003AC-33-33ED-66.66670G
  • SIT9003AC-33-33ED-66.66670S