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ISL12020 - Low Power RTC

Datasheet Summary

Description

PIN NUMBER 1 2 3 4 5 6 7 8 SYMBOL X1 X2 VBAT GND SDA SCL IRQ/FOUT VDD DESCRIPTION X1.

The X1 pin is the input of an inverting amplifier and is intended to be connected to one pin of an external 32.768kHz quartz crystal.

X1 can also be driven directly from a 32.768kHz source.

Features

  • Real Time Clock/Calendar - Tracks Time in Hours, Minutes and Seconds - Day of the Week, Day, Month and Year.
  • On-chip Oscillator Compensation Over the Operating Temp Range - ±5ppm over -20°C to +70°C.
  • Day Light Saving Time - Customer Programmable.
  • 15 Selectable Frequency Outputs.
  • 1 Alarm - Settable to the Second, Minute, Hour, Day of the Week, Day, or Month - Single Event or Pulse Interrupt Mode.
  • Automatic Backup to Battery or Super Cap - Ope.

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Datasheet preview – ISL12020

Datasheet Details

Part number ISL12020
Manufacturer Intersil Corporation
File Size 323.36 KB
Description Low Power RTC
Datasheet download datasheet ISL12020 Datasheet
Additional preview pages of the ISL12020 datasheet.

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Full PDF Text Transcription

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® ISL12020 Real Time Clock with On Chip Temp Compensation ±5ppm Data Sheet March 29, 2007 FN6450.0 Low Power RTC with VDD Battery Backed SRAM and Embedded Temp Compensation ±5ppm with Auto Day Light Saving The ISL12020 device is a low power real time clock with an embedded Temp sensor for oscillator compensation, clock/calendar, power fail, low battery monitor, brown out indicator, single periodic or polled alarms, intelligent battery backup switching and 128 bytes of battery-backed user SRAM. The oscillator uses an external, low-cost 32.768kHz crystal. The real time clock tracks time with separate registers for hours, minutes, and seconds. The device has calendar registers for date, month, year and day of the week.
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