DS1238 - MicroManager

Dallas

The DS1238 by Dallas is a MicroManager. Below is the official datasheet preview.

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DS1238 MicroManager by Dallas - Datasheet Preview — Official preview page of the **DS1238** MicroManager datasheet (Dallas).

Datasheet Details

Part number	DS1238
Manufacturer	Dallas
File Size	216.62 KB
Description	MicroManager
Datasheet	DS1238_Dallas.pdf
Additional preview pages of the DS1238 datasheet.

DS1238 Product details

Description

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 - Chip Enable Output - Chip Enable Input - Watchdog Status - Reset Output (active low) - Reset Output (active high) DESCRIPTION The DS1238 MicroManager provides all the necessary functions for power

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 until completion of the current memory cycle Consumes less than 200 nA of battery current Controls external power switch for high current.

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Other Datasheets by Dallas

DS1238A - MicroManager
DS1230AB - 256k Nonvolatile SRAM
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DS1230Y - 256k Nonvolatile SRAM
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DS1231S - Power Monitor Chip

Published: Jun 10, 2005 |