X4285 - CPU Supervisor

This page provides the datasheet information for the X4285, a member of the X4283 CPU Supervisor family.

Description

The X4283, X4285 combines four popular functions, Power-on Reset Control, Watchdog Timer, Supply Voltage Supervision, and Block Lock protect serial EEPROM memory in one package.

This combination lowers system cost, reduces board space requirements, and increases reliability.

Features

Selectable watchdog timer.
Low VCC detection and reset assertion.
Four standard reset threshold voltages.
Adjust low VCC reset threshold voltage using special programming sequence.
Reset signal valid to VCC = 1V.
Low power CMOS.

Intersil Corporation

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Datasheet Details

Part number	X4285
Manufacturer	Intersil Corporation
File Size	370.11 KB
Description	CPU Supervisor
Datasheet	X4285 Datasheet
Additional preview pages of the X4285 datasheet.

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X4283 - CPU Supervisor

Full PDF Text Transcription

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® X4283, X4285 128K, 16K x 8 Bit Data Sheet May 23, 2006 FN8121.1 CPU Supervisor with 128K EEPROM FEATURES • Selectable watchdog timer • Low VCC detection and reset assertion —Four standard reset threshold voltages —Adjust low VCC reset threshold voltage using special programming sequence —Reset signal valid to VCC = 1V • Low power CMOS —<20µA max standby current, watchdog on —<1µA standby current, watchdog OFF —3mA active current • 128Kbits of EEPROM —64 byte page write mode —Self-timed write cycle —5ms write cycle time (typical) • Built-in inadvertent write protection —Power-up/power-down protection circuitry —Protect 0, 1/4, 1/2, all or 64, 128, 256 or 512 bytes of EEPROM array with programmable Block Lock™ protection • 400kHz 2-wire interface www.DataSheet4U.com • 2.7V to 5.

Published: May 28, 2007 |