This macro-cell is a true ultra-low-power, general purpose 32.768kHz internal oscillator core consuming 120nA when fully functional. A 4-bit digital bus allows frequency adjust against process variations. It features built-in bias references.
The core is easily retargeted to any other CMOS technology because it uses typical devices of standard CMOS technologies.
True-ULP 32.768kHz RTC Oscillator - Current Consumption<120nA - Silterra 0.18µm
Overview
Key Features
- True-ULP (<120nA)
- 32768Hz ±30% PVT
- Supply: from 2.7V to 3.6V
- Temperature: from -40°C up to 125°C
- Indicative area: 0.032um2
- Load capacitance: <20fF
Block Diagram

Technical Specifications
Foundry, Node
Silterra 0.18 um
Maturity
GDS Available
Silterra
Pre-Silicon:
180nm
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