Real-Time Clock Counts Seconds Through Centuries in BCD Format
- bq4802Y: 5-V Operation
- bq4802LY: 3.3-V Operation
On-Chip Battery-Backup Switchover Circuit With Nonvolatile Control for External SRAM
Less Than 500 nA of Clock Operation Current in Backup Mode
Microprocessor Reset With Push-Button Override
Independent Watchdog Timer With Programmable Time-Out Period
Power-Fail Interrupt Warning
Programmable Clock Alarm Interrupt Active in Battery-Backup Mode
Programmable Periodic Interrupt
Battery-Low Warning
28-pin SOIC, TSSOP, and SNAPHAT Package Options
APPLICATIONS
- Telecommunications Base Stations
- Servers
- Handheld Data Collection Equipment
- Medical Equipment
- Handheld Instrumentation
- Test Equipment

BQ4802LYPWR Parameters

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