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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
