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DS1314 - 3V Nonvolatile Controller

General Description

VCCI VCCO VBAT - Power Supply Input - SRAM Power Supply Output - Backup Battery Input CEI - Chip Enable Input CEO TOL BW - Chip Enable Output - VCC Tolerance Select - Battery Warning Output (Open Drain) RST GND NC - Reset Output (Open Drain) - Ground - No Connection DESCRIPTION The DS1314 No

Key Features

  • Converts CMOS SRAM into nonvolatile memory.
  • Unconditionally write-protects SRAM when VCC is out of tolerance.
  • Automatically switches to battery backup supply when VCC power failure occurs.
  • Monitors voltage of a lithium cell and provides advanced warning of impending battery failure.
  • Signals low-battery condition on active low Battery Warning output signal.
  • Automatic VCC power-fail detection for 3.0V or 3.3V power supplies.
  • Space-saving 8-pin DIP and SOIC packa.

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Full PDF Text Transcription for DS1314 (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for DS1314. For precise diagrams, and layout, please refer to the original PDF.

19-6307; Rev 6/12 DS1314 3V Nonvolatile Controller with Lithium Battery Monitor FEATURES  Converts CMOS SRAM into nonvolatile memory  Unconditionally write-protects SRA...

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CMOS SRAM into nonvolatile memory  Unconditionally write-protects SRAM when VCC is out of tolerance  Automatically switches to battery backup supply when VCC power failure occurs  Monitors voltage of a lithium cell and provides advanced warning of impending battery failure  Signals low-battery condition on active low Battery Warning output signal  Automatic VCC power-fail detection for 3.0V or 3.

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