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DS1302 Trickle Charge Timekeeping Chip Datasheet
Photograph
Features
Real Time Clock - Valid up to 2100
31 x 8 Scratchpad RAM
2.0 - 5.5V Operation
Low Operating Current - Less than 300nA @ 2.0V
Simple 3-wire Interface
DS1202 Compatible
TTL 5.0V Compatible
Pin Layout
Pin Description
| Pin Number | Description |
|---|---|
| 1 | Vcc2 - Power Supply Pin |
| 2 | X1 - 32.768kHz Crystal Input |
| 3 | X2 - 32.768kHz Crystal Input |
| 4 | GND - Ground |
| 5 | RST - Reset |
| 6 | I/O - Date Input/Output |
| 7 | SCLK - Serial Clock |
| 8 | Vcc1 - Power Supply Pin |
Dimensional Drawing
Technical Data
Datasheet
| Analog Devices website - Datasheet for DS1302 |
|
Application Notes
| Dallas Semiconductor - Using the Dallas Tricklecharge Timekeeper |
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