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bq2502

Part Number	bq2502
Manufacturer	BENCHMARQ
Description	Integrated Backup Unit
Published	Dec 18, 2019
Detailed Description	bq2502 Features ® Power monitoring, backup supply, and switching for 3V batterybackup applications ® Write-protect cont...
Datasheet	bq2502 PDF File

Overview

bq2502 Features ® Power monitoring, backup supply, and switching for 3V batterybackup applications ® Write-protect control ® Input decoder for control of up to 2 banks of SRAM ® 3-volt backup power output ® Internal 130mAh lithium-coin cell ® Reset output for system power-on reset ® Less than 10ns chip-enable propagation delay ® 5% or 10% supply operation Integrated Backup Unit General Description The CMOS bq2502 Integrated Backup Unit provides all the necessary functions for converting one or two banks of standard CMOS SRAM into nonvolatile read/write memory.
A precision comparator monitors the 5V VCC input for an out-of-tolerance condition.
When out of tolerance is detected, the two con...

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