Real Time Clock-Using Dallas DS1302. CR1220 Battery Not Included

DS1302 Real Time Clock Module

Specifications

• PCB a single panel, size: 42mm * 24mm * 12mm(max)
• with 4 holes, about 3.1mm in diameter
• Color: green (as the picture shows)
• genuine spare battery for the celestial sphere CR2032, Voltage 3V, current is 260mAh, non-rechargeable batteries.
• Crystal 32.768KHz, matching capacitance 6pF, size 2 * 6mm
• DS1302 made large 8-pin DIP chip, chip, IC Block below for easy replacement and plug the chip
• module operating voltage compatible 3.3V/5V, 5V and 3.3V microcontrollers can be connected with Operating temperature: 0– 70
• Wiring (to provide the program, for example, can take any IO port, the port defined in the program can be modified):
  • VCC +5 V/3.3V
  • GND GND
  • CLK P02
  • DAT P01
  • RST P00
• 1.51 MCU P0 port requires a pull-up, if your single-chip pull-up resistor is not connected, you can port the data cable to the other
• 2VCC and GND must not be reversed, or it will burn the chip

Additional Information