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ISL1221 Datasheet - Renesas

ISL1221 Low Power RTC

DATASHEET ISL1221 Low Power RTC with Battery Backed SRAM and Event Detection FN6316 Rev 1.00 July 15, 2010 The ISL1221 device is a low power real time clock with Event Detect and Time Stamp function, timing and crystal compensation, clock/calendar, power fail indicator, periodic or polled alarm, intelligent battery backup switching with separate FOUT output and 2 Bytes of battery-backed user SRAM. The oscillator uses an external, low-cost 32.768kHz crystal. The real time clock tracks time wit.

ISL1221-Renesas.pdf