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DS1374 - 32-Bit Binary Counter Watchdog RTC

Datasheet Summary

Features

  • 32-Bit Binary Counter.
  • Second Binary Counter Provides Time-of-Day Alarm, Watchdog Timer, or NV RAM.
  • Separate Square-Wave and Interrupt Output Pins.
  • I2C Serial Interface.
  • Automatic Power-Fail Detect and Switch Circuitry.
  • Single-Pin Pushbutton Reset Input/Open-Drain Reset Output.
  • Low-Voltage Operation.
  • Trickle-Charge Capability.
  • -40°C to +85°C Operating Temperature Range.
  • 10-Pin µSOP, 16-Pin SO.
  • Ava.

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Datasheet preview – DS1374

Datasheet Details

Part number DS1374
Manufacturer Maxim Integrated Products
File Size 311.49 KB
Description 32-Bit Binary Counter Watchdog RTC
Datasheet download datasheet DS1374 Datasheet
Additional preview pages of the DS1374 datasheet.

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Full PDF Text Transcription

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Rev 2; 9/05 U Binary Counter Watchdog RTC with I2C, 32-Bit 4 etTrickle Charger and Reset Input/Output The DS1374 is a 32-bit binary counter designed to continuously count time in seconds. An additional counter generates a periodic alarm or serves as a watchdog timer. If disabled, this counter can be used as 3 bytes of nonvolatile (NV) RAM. Separate output pins are provided for an interrupt and a square wave at one of four selectable frequencies. A precision temperature-compensated reference and comparator circuit monitor the status of VCC to detect power failures, provide a reset output, and automatically switch to the backup supply when necessary. Additionally, the reset pin is monitored as a pushbutton input for externally generating a reset.
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