The Always-On domain, over which the power islets emerge, requires a specific panoply of clocks. The availability of extremely low power oscillators is therefore a must. In low power modes, low speed clocks are generally used. The qOSC-XTAL-LP-32k-co.01 - low frequency crystal oscillator - is an excellent choice for application combining the needs of high accuracy on the always-on clock and an ultra-low power consumption.

Key Benefits

  • Low power consumption: support of low power and backup modes thanks to its 50 nA of typical power consumption
  • High accuracy: can operate in various environment thanks to its outstanding stability over a large range of temperature
  • A cost-efficient solution: no external component is needed (except a quartz) thanks to on-chip integrated capacitors.
  • A flexible solution: users have the possibility to add capacitors depending on the external crystal selected for a better frequency fitting
  • By-Pass Mode: the oscillator could be by-passed during tests

Key Features

Minimum value
Typical value
Maximum value
Input Voltage
- 0.495 V 1.21 V


  • Smart Headset
  • TWS Earpods
  • Smart Speaker
  • Voice Assistant
  • Hearing aids
  • Voice-controlled devices
  • Bluetooth
  • NB-IoT
  • WiFi
  • GNSS
  • Cellular IoT

Key Performances

  • Low power consumption: 70 nA @ 0.9 V
  • 50 ppm frequency accuracy
  • Duty cycle: 50% ±5%

Technical information

  • Technology: TSMC 55 LP