bq2502 unit equivalent, integrated backup unit.
® 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 b.
® Write-protect control
® Input decoder for control of up to 2 banks of SRAM
® 3-volt backup power output
® Internal 130.
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