The parameters of the DS1302 real-time clock module are as follows:
1.PCB is a single panel, size: 44mm*23mm*1.6mm
2. With 4 positioning holes, diameter 3.1mm
3. The backup battery is genuine celestial CR2032, voltage 3V, current 260mAh, non-rechargeable battery. Theoretical data retention time is greater than 10 years!
4. Crystal oscillator 32.768KHz, Japan imported crystal oscillator, matching capacitor is 6pF, size 2*6mm
5.DS1302 is a 8-pin in-line large-scale domestic chip. There is an IC holder under the chip, which is convenient for replacement and plugging and unloading of chips.
6. Module working voltage is compatible with 3.3V/5V, can be connected with 5V and 3.3V MCU
7. Working temperature: 0?—70?
Wiring method
VCC?+5V/3.3V
GND?GND
CLK?P02
DAT?P01
RST?P00
Precautions:
1. Do not reverse the VCC and GND to avoid burning the chip.
The 2.51 MCU P0 port needs to be connected with a pull-up resistor. If your MCU does not have a pull-up resistor, you can connect the data cable to other ports.
Reviews
There are no reviews yet.