BQ4802LYPWR 3.3V Real Time Clock IC Parallel RTC 28-Pin TSSOP
Low-power real-time clock with BCD century calendar, battery-backup switchover, and CPU supervisor. Features watchdog timer, alarm interrupt, and less than 500 nA backup current. Ideal for telecom, medical, and industrial equipment.
BQ4802LYPWR Clock Timer ICS Real Time Clock Parallel RTC
FEATURES
- 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 D Servers
- Handheld Data Collection Equipment D Medical Equipment
- Handheld Instrumentation D Test Equipment
DESCRIPTION
The bq4802Y/bq4802LY real-time clock is a low-power microprocessor peripheral that integrates a time-of- day clock, a century-based calendar, and a CPU super- visor, with package options including a 28-pin SOIC, TSSOP, or SNAPHAT that requires the bq48SH-28x6 to complete the two-piece module. The bq4802Y/ bq4802LY is ideal for fax machines, copiers, industrial control systems, point-of-sale terminals, data loggers, and computers.
Recommended Products
