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ISL12022MR5421

Part Number	ISL12022MR5421
Manufacturer	Renesas
Description	Low Power RTC
Published	Jun 14, 2019
Detailed Description	DATASHEET ISL12022MR5421 Low Power RTC with Battery Backed SRAM, Integrated ±5ppm Temperature Compensation and Auto Day...
Datasheet	ISL12022MR5421 PDF File

Overview

DATASHEET ISL12022MR5421 Low Power RTC with Battery Backed SRAM, Integrated ±5ppm Temperature Compensation 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 compensation, 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 ±5ppm drift over the full -40°C to +85°C temperature range.
The RTC tracks time with separate registers for hours, minutes, and seconds.
The calendar registers track date, month, year and day of the week and are accurate through 2099, with automatic leap year correction.
Daylight Savings time adju...

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