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Product Highlights

? Ultra-Low-Power Real Time Clock

? 70nA Timekeeping Current

? 1.1V to 5.5V Timekeeping Voltage Range

? Automatic Switchover to Backup Supply on

Power Failure

? Trickle Charger for External Supercapacitor

? Integrated Power Switch with State Machine

Increases System Battery Life

? Up to 500mA Continuous Current

? Ultra-Low 57mΩ On-Resistance

? Wakeup on Periodic Interrupt—Countdown Timer

(100ms to 1hr) and Alarms (1s Resolution)

? Wakeup on External Interrupt, Like Pushbutton

? Saves Board Space

? No External Capacitors Required for Crystal

? 1.5mm x 2mm 12-WLP

? 3mm x 3mm 12-TDFN

? Value-Add Features for Ease of Use

? Works with Many 32.768kHz Crystals (no CL

limitation)

? Two Time-of-Day Alarms

? Event Detection and Timestamps

? 1/128 Second Register

? 32 bytes of User RAM

Key Applications

? Electronic Shelf Label

? Ultra-low-power IoT Modules

? Medical Wearables

? Temperature Loggers

? Asset Tracking

? Battery-Powered Devices