DS1302 Real Time Clock Module with CR2032 Button Battery 31 x 8 RAM
Description:
The DS1302 trickle-charge timekeeping chip contains a real-time clock/calendar and 31 bytes of static RAM. It communicates with a microprocessor via its interface. The real-time clock/calendar provides seconds, minutes, hours, day, date, month, and year information.
- 31 x 8 RAM for scratchpad data storage
- Serial I/O interface for minimum pin count
- Wide Working Voltage: 2.0 ~ 5.5V
- Single-byte and multi-byte transmission for clock or RAM data read / write
- TTL-compatible (Vcc=5V)
- Working Temperature: 0 to +70 Deg C
- 32.768KHz crystal oscillator
- Equipped with a 260mAh CR2032 button battery, not rechargeable
- Overall Size: Approx. 44 x 23 x 11mm
Note:
- Do not reverse VCC and GND, or it will cause damage
- It requires a pull-up resistor for P0 port of 51 MCU, if without, you can connect the data cable to other terminal
  |
 |