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PST523 - Battery Backup IC

This page provides the datasheet information for the PST523, a member of the PST532 Battery Backup IC family.

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Datasheet Details

Part number PST523
Manufacturer MITSUMI
File Size 102.29 KB
Description Battery Backup IC
Datasheet download datasheet PST523 Datasheet
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MITSUMI Battery Backup IC Battery Backup IC 1. Background of Development Around 1985 when began the sales of IC for microcomputer peripheral equipment and system reset IC, a set manufacture inquired of us about IC for control of memory. It was a good change for us to decide a joint development of general purpose IC. This resulted in the development of PST531 and PST532. In 1989 they were improved into the backup IC series dedicated to cards, games (popular-priced) and to 1-chip microcomputers. Our IC series now includes low current consumption type products. 2. What is Battery Backup IC? Such IC memories as S-RAM and D-RAM all volatilize when power supply is cut off.
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