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ISL12022M - Low Power RTC

General Description

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Key Features

  • Embedded 32.768kHz quartz crystal in the package.
  • 20 Ld SOIC package (for DFN version, see the ISL12020M).
  • Calendar.
  • On-chip oscillator temperature compensation.
  • 10-bit digital temperature sensor output.
  • 15 selectable frequency outputs.
  • Interrupt for alarm or 15 selectable frequency outputs.
  • Automatic backup to battery or supercapacitor.
  • VDD and battery status monitors.
  • Battery Reseal function to extend ba.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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DATASHEET ISL12022M Low Power RTC with Battery Backed SRAM, Integrated ±5ppm Temperature Compensation and Auto Daylight Saving FN6668 Rev.10.00 Oct 24, 2019 The ISL12022M 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. Backup battery current draw is less than 1.6µA over the temperature range. The device is offered in a 20 Ld SOIC module that contains the RTC and an embedded 32.768kHz quartz crystal.