Ultra-Small Low-Jitter, 32.768-kHz ±100-ppm Oscillator
Built on SiTime's TempFlat MEMS™ technology, this 32-kHz ±100-ppm (al-inclusive frequency stability) oscillator comes in an ultra-small 1.2mm2 chip-scale package. Typical supply current is only 4.5 μA. This device can drive 2 to 3 loads and replace multiple quartz crystals, reducing the BOM and board space. And unlike crystals, it doesn’t require external bypass capacitors.
View related products: 1.2 V operation | 32 kHz lineup

Oscillator Type | 32-kHz XO |
Frequency | 32.768 kHz |
Frequency Stability (ppm) | ±100 |
Output Type | LVCMOS |
Operating Temperature Range (°C) | -40 to +85 |
Voltage Supply (V) | 1.62 to 3.63 |
Package Type (mm²) | 1.5x0.8 |
Features | Ultra-low power |
Availability | Sampling |
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World's smallest oscillator in tiny 1508 chip-scale package, low-jiiter, consumes only 1.2 mm2 board space
±100 ppm all-inclusive frequency stability
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Improved local timekeeping and improved system power with less dependency on network timekeeping updates
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Improved system error budget
Smallest footprint in chip-scale package (CSP): 1.5 x 0.8 mm
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Saves board space
Ultra-low power: 4.5 µA (typ.)
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Maximizes battery life
Low jitter: 4 ns RMS integrated phase jitter (IPJ)
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Suitable for audio applications
Internal VDD supply filtering
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Eliminates external VDD bypass capacitor to maintain ultra-small footprint
Drives multiple loads
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Eliminates multiple discrete XTALs and load caps
- Wireless connectivity sleep clock
- Retail electronics
- RTC reference clock
- Data connectivity
- Consumer electronics
- Fitness tracker
- ULP input devices
- Mobile accessories
Document Name | Type |
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Manufacturing Notes for SiTime Products | Other Quality Documents |
Reliability Calculator – Get FIT/MTBF data for various operating conditions
Resource Name | Type |
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AN10062 Phase Noise Measurement Guide for Oscillators | Application Notes |
Silicon Replaces Quartz (Chinese Subtitles) (Download MP4 Video) | Videos |
Silicon Replaces Quartz (Japanese Subtitles) (Download MP4 Video) | Videos |
Timing Solutions for Mobile & IoT | Brochures/Fliers |
Silicon Replaces Quartz (Japanese Subtitles) | Videos |
Silicon Replaces Quartz (Chinese Subtitles) | Videos |
SiT1573 Datasheet | Datasheets |
SiTime MEMS First 工艺 | Technology Papers |