Description Specifications: PCB a single panel, size: 42mm x 24mm x 1.6mm(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 Packing List: 1 x DS1302 Real-Time Clock Module BATTERY NOT INCLUDED



