SMIC 65nm 2.5/1.2V 32768Hz Crystal Oscillator
Overview
This is a 32768Hz crystal oscillator specifically designed for ultra-low power application. The sole power supply is 3.3V, but it can be as low as 1.6V while the oscillator still functions properly. The oscillator works in parallel resonant mode of the crystal. When a 32768Hz quartz crystal is connected to pins XIN32K and XOUT32K, the oscillator will output 32768Hz square wave, with the average current less than 2uA.
Key Features
- Process: SMIC 65nm 2.5 /1.2V (LL_V25)
- Operating voltage range: VCC_XO: 1.6~3.6V
- Operating junction temperature:- 40~125°C
- Operating current: <2uA
- Start-up time: <200ms for quick start up
- Drive strength: transition time <10ns under 0.5pF load
- Output frequency: 32768Hz (need to select a proper type of quartz)
- No external capacitor needed (if proper quartz is used)
Technical Specifications
Foundry, Node
SMIC 65nm
SMIC
Pre-Silicon:
65nm
LL
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