Ultra-Small, Low-Power, Low-Jitter, ±5 ppm, 32.768 kHz TCXO


SiTime's TempFlat MEMS technology, coupled with our mixed-signal capability, enables the smallest 32-kHz TCXO in a 1.2mm² chip-scale package. These devices use MEMS resonators that are manufactured using the latest generation of EpiSeal™ technology which hermetically seals the resonator, making it impervious to all small-molecule gases. Additionally, the SiT1580 has a high shock and vibration survivability. These TCXOs are factory calibrated over multiple temperature points to guarantee extremely tight ±5 ppm all-inclusive frequency stability. Typical core supply current is only 4.5 μA.

World's smallest TCXO in tiny 1508 chip-scale package, low-jitter, consumes only 1.2 mm2 board space
"Specs" "Value"
Frequency 32.768 kHz
Frequency Stability (ppm) ±5
Operating Temperature Range (°C) -20 to +70, -40 to +85
Package Type (mm²) 1.5x0.8
Oscillator Type 32 kHz TCXO
Voltage Supply (V) 1.62 to 1.98
Features Robustness against shock, vibration, and small molecule gases
Availability Production

Smallest footprint in chip-scale (CSP) 

  • 1.5 x 0.8 mm: Saves board space

Ultra-low power: 4.5 µA (typ)

  • Maximizes battery life

Low jitter 2.5 ns RMS Integrated Phase Jitter (IPJ)

  • Suitable for audio applications

Internal VDD supply filtering

  • Eliminates external VDD bypass capacitor to maintain ultra-small footprint

Drives multiple loads

  • Eliminates multiple discrete XTALs + load caps

Robust against shock, vibration, and small molecule gases

  • Smart Meters
  • Long-range Communications
  • Machine to Machine (M2M)
  • Data Connectivity
  • Industrial Sensors
  • Industrial Automation
  • RTC Reference Clocks

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

Apply Filters
Filter By:
Resource Type
Resource Name Resource Type Date Format Size
Step 1: Configure SiT1580 Part Number
Step 2. Purchase
Qty:Unit PriceTotal
QuantityUnit Price
> 4,999---