Ultra-Small µPower, 32.768 kHz Quartz XTAL Replacement

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.

View related products: 1 to 32.768 kHz2012 packageHigh temp | 4 ns phase jitter±50 ppm | 32 kHz lineup

World's smallest oscillator in tiny 1508 chip-scale package, consumes only 1.2 mm2 board space
Oscillator Type 32kHz XO
Frequency 32.768 kHz
Frequency Stability (ppm) 75, 100, 250
Output Type LVCMOS, NanoDrive™
NanoDrive™ 300mV to 700mV, full swing LVCMOS
Operating Temperature Range (°C) -10 to +70, -40 to +85
Voltage Supply (V) 1.2 to 3.63
Package Type (mm²) 1.5x0.8
Features Smallest size
Availability Production

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


  • 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

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Evaluation board – SiT6098EBB

SiT6098EBB Evaluation Board User Manual – Evaluate device performance

Reliability Calculator – Get FIT/MTBF data for various operating conditions

CSP 1508 4-Pins 3D Step Model – Preview oscillator packages in 3D

Narrow By:

Resource Name Type
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
SiT15xx 32 kHz NanoDrive™ Output Presentations
Silicon MEMS vs Quartz Supply Chain Presentations
Clock Features for Power Conscious and Greener Applications White Papers
MEMS Oscillators: Enabling Smaller, Lower Power Wearables White Papers
Silicon MEMS Oscillators Provide Benefits for LED Lighting White Papers
MEMS Timekeeper Extends Standby Life of Mobile Devices White Papers
MEMS Timing Solutions Improve Touchscreen Devices White Papers
MEMS Timing Technology: Shattering the Constraints of Quartz Timing to Improve Smart Mobile Devices 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
Smart Clocking Techniques Extend Battery Life of Wearables Presentations
SiT1532 Datasheet Datasheets
AN10002 Termination Recommendations for Single-ended Oscillator Driving Single or Multiple Loads 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
AN10007 Clock Jitter Definitions and Measurement Methods Application Notes
J-AN10007 クロックジッタの定義と測定方法 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
J-AN10037 低消費電力MCUの32 kHz発振動作モードに対する SiT15xx製品の最適なドライブ出力設定 Application Notes
AN10037 Optimized SiT15xx Drive Settings for 32 kHz Inputs of Low Power MCUs Application Notes
J-AN10040 SiT1532 MEMSベース32.768kHz発振器の周波数安定性 Application Notes
AN10040 SiT1532-32kHz XO Frequency Stability.pdf Application Notes
J-AN10043 SiT15xxシリーズ(32 kHz発振器)の測定ガイドライン Application Notes
AN10043 Measurement Guidelines for 32 kHz SiT15xx 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
J-AN10046 32 kHz Nano-Power MEMS 発振器による複数負荷駆動 Application Notes
AN10046 Driving Multiple Loads with 32 kHz Nano-Power MEMS Oscillators Application Notes
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
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
AN10052 IEEE 1588 Precision Time Protocol (PTP) in ITU-T Standards 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
AN10062 Phase Noise Measurement Guide for Oscillators Application Notes
Phase Noise Measurement Tutorial Videos
Phase Noise Measurement Tutorial (Download MP4 Video) Videos
PCI Express Refclk Jitter Compliance using a Phase Noise Analyzer Presentations
Advantages of MEMS Timing - Parameters (Download MP4 Video) Videos
Silicon Replaces Quartz (Chinese Subtitles) (Download MP4 Video) Videos
Silicon Replaces Quartz (Japanese Subtitles) (Download MP4 Video) Videos
SiTime MEMS Oscillators - Revolutionizing the Timing Market (Download MP4 Video) Videos
SiTime MEMS Oscillators and Clock Generators at Electronics Summit (Download MP4 Video) Videos
Training Module: Replacing Crystals with Oscillators (Download MP4 Video) Videos
How SiTime Saves Space for IOT, Wearable, and Mobile Applications Videos
How SiTime Saves Space for IOT, Wearable, and Mobile Applications (Download MP4 Video) Videos
CSP 1508 4-Pins 3D Step Models
SiTime MEMS Timing Solutions (8.5x11) Brochures/Fliers
SiTime MEMS Timing Solutions (A4) Brochures/Fliers
SiTime MEMS Timing Solutions (A4) Chinese Brochures/Fliers
Timing Solutions for Industrial Brochures/Fliers
Timing Solutions for Mobile & IoT Brochures/Fliers
SiT6098EBB Evaluation Board User Manual User Manuals
Silicon Replaces Quartz (Japanese Subtitles) Videos
Silicon Replaces Quartz (Chinese Subtitles) Videos
Smart Meters Application Briefs
SiT1532 (LVCMOS, 1.5 V) IBIS Models
SiT1532 (LVCMOS, 1.8 V) IBIS Models
SiT1532 (LVCMOS, 3.3 V) IBIS Models
SiTime MEMS First 工艺 Technology Papers