This macro-cell is an ultra-low power, general purpose 32.768kHz internal oscillator core aimed for RTC (real time clock) applications.
A 6-bit digital bus allows frequency adjustment against process variations. It has self-biased, built-in references and doesn’t require external ones. The core is easily retargeted to any other CMOS technology due to its MOSFET-only oscillator architecture.
ULP 32.768kHz oscillator in Silterra 0.18 um
Overview
Key Features
- 32.768kHz ±5.1%
- ULP ( Ptot < 1.3uW )
- Low TC
- 6-bit trimming
- Self-biased, built-in references
- Area: 0.032 um2 (153 µm x 210 µm)
Block Diagram
Technical Specifications
Foundry, Node
Silterra 0.18 um
Maturity
GDS Available
Silterra
Pre-Silicon:
180nm
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