AB1815-T3 Description

The ABRACON AB18X5 Real-Time Clock with Power Management family provides a groundbreaking combination of ultra-low power coupled with 

a highly sophisticated feature set. With power requirements significantly lower than any other industry RTC (as low as 14 nA), these are the first semiconductors 

based on the innovative SPOTTM(Subthreshold Power Optimized Technology) CMOS

platform. The AB18X5 includes on-chip oscillators to provide minimum power consumption, full RTC functions including battery backup, programmable 

counters and alarms for timer and watchdog functions, and an I2C or SPI serial interface for communication with a host controller. An integrated power 

switch and a sophisticated system sleep manager with counter, timer, alarm, and interrupt capabilities allows the AB18X5 to be used as a supervisory 

component in a host microcontroller-based system.

AB1815-T3 Features

I2C (up to 400 kHz) and 3-wire or 4-wire SPI (up to 2 MHz) serial interfaces are available

Operating voltage 1.5-3.6 V

Clock and RAM retention voltage 1.5-3.6 V

Operating temperature –40 to 85 °C

All inputs include Schmitt Triggers

3x3 mm QFN-16 package

AB1815-T3 Applications

Smart cards

Wireless sensors and tags

Medical electronics

Utility meters

Data loggers

Appliances

Handsets

Consumer electronics

Communications equipment