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DS1238 Datasheet - Dallas

DS1238_Dallas.pdf

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Datasheet Details

Part number:

DS1238

Manufacturer:

Dallas

File Size:

216.62 KB

Description:

Micromanager.

DS1238, MicroManager

VBAT VCCO VCC GND PF RVT OSCIN OSCSEL IN NMI ST CEO CEI WDS RST RST - +3-Volt Battery Input - Switched SRAM Supply Output - +5-Volt Power Supply Input - Ground - Power-Fail - Reset Voltage Threshold - Oscillator In - Oscillator Select - Early Warning Input - Non-Maskable Interrupt - Strobe Input

DS1238 Features

* Holds microprocessor in check during power transients Halts and restarts an out-of-control microprocessor Warns microprocessor of an impending power failure Converts CMOS SRAM into nonvolatile memory Unconditionally write-protects memory when power supply is out of tolerance Delays write protection

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