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DS1234

Conditional Nonvolatile Controller Chip

DS1234 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

DS1234 General 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.

DS1234 Datasheet (71.46 KB)

Preview of DS1234 PDF

Datasheet Details

Part number:

DS1234

Manufacturer:

Dallas

File Size:

71.46 KB

Description:

Conditional nonvolatile controller chip.

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DS1234 Conditional Nonvolatile Controller Chip Dallas

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