| BQ4847 Description |
| RTC W NVSRAM Control, Watchdog Timer, uP Reset Interrupts Battery Low Warning |
| BQ4847 Vendor |
| Texas Instruments |
| BQ4847 Categories |
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| BQ4847 Features |
- Real-Time Clock counts seconds through years in BCD format
- Integrated battery and crystal
- On-chip battery-backup switch-over circuit with nonvolatile control for an external SRAM
- 130mAh battery capacity
- ±1 minute per month clock accuracy
- Less than 500nA of clock operation current in backup mode
- Microprocessor reset valid to VCC=VSS
- Independent watchdog timer with a programmable time-out period
- Power-fail interrupt warning
- Programmable clock alarm interrupt active in battery-backup mode
- Programmable periodic interrupt
- Battery-low warning
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| BQ4847 Datasheet and Application Notes |
|
| Parameter | Value |
| Supply Voltage (V) | 5 |
| Bus Interface | Parallel |
| Approx. 1KU Price (US$) | 4.95 |
| Products related to BQ4847 |
| BQ4847MT BQ4847YMT BQ4847Y |