DS1234 - Conditional Nonvolatile Controller Chip

Product Overview

Dallas

Datasheet Details

Part number	DS1234
Manufacturer	Dallas
File Size	71.46 KB
Description	Conditional Nonvolatile Controller Chip
Datasheet	DS1234 Datasheet
Additional preview pages of the DS1234 datasheet.

Product details

Description

VCCO NC RAM Supply No Connection CEI Chip Enable Input WEI Write Enable Input CEO Chip Enable Output to RAM WEO Write Enable Output to RAM GND Ground PF Power Fail Output A0-A3 Address Inputs VBAT VCCI Battery Input +5V Supply DESCRIPTION The DS1234 is a CMOS circuit that converts CMOS RAM into nonvolatile memory and adds two software selectable switches.Incoming power i

Features

Converts CMOS static RAMs into nonvolatile memories.
Software-controlled write inhibit.
Software-controlled battery disconnect extends battery life.
Unconditionally write protects when VCC is out of tolerance.
Consumes less than 100 nA of battery current.
Power fail signal can be used to interrupt processor on power failure.
Low forward voltage drop on the VCC switch.
Optional 16-pin SOIC surface mount package PIN.

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Published: Aug 4, 2015 |