Datasheet Summary
Low Power RTC with Battery Backed SRAM, Integrated ±5ppm Temperature pensation and Auto Daylight Saving
FN7576 Rev 3.00 June 7, 2012
The ISL12022MR5421 device is a low power real time clock (RTC) with an embedded temperature sensor and crystal. Device functions include oscillator pensation, clock/calendar, power fail and low battery monitors, brownout indicator, one-time, periodic or polled alarms, intelligent battery backup switching, Battery Reseal™ function and 128 bytes of battery-backed user SRAM. The device is offered in a 20 Ld SOIC module that contains the RTC and an embedded 32.768kHz quartz crystal. The calibrated oscillator provides less than...