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DS1259 Battery Manager Chip Datasheet
Photograph
Features
- Facilitates Uninterruptible Power Supply
- Uses Battery only when Primary Vcc is Not Available
- Low Forward Voltage Drop
- Power Fail Signal Interrupts Processor or "Write Protects" Memory
- Consumes less than 100nA of battery current
- Low Battery Warning Signal
- Battery can be Electrically Disconnected upon Command
- Mates Directly with DS1212 Nonvolatile Controller x 16 Chip to back up 16 RAMs
Pin Layout
Pin Description
| Pin Number | Description |
|---|---|
| 1 | NC - Not Connected |
| 2 | Vbat - Battery Input Connection |
| 3 | BF - Battery Fail Output Signal |
| 4 | NC - Not Connected |
| 5 | BAT - Battery Output |
| 6 | RST - Reset Input |
| 7 | GND - Ground |
| 8 | GND - Ground |
| 9 | NC - Not Connected |
| 10 | NC - Not Connected |
| 11 | PF - Power Fail Output Signal |
| 12 | Vcco - RAM Supply |
| 13 | Vcco - RAM Supply |
| 14 | NC - Not Connected |
| 15 | Vcci - +5V Supply |
| 16 | Vcci - +5V Supply |
Dimensional Drawing
Technical Data
