Smart Electronics DS1302 Real Time Clock Module

Hot Sale Smart Electronics DS1302 Real Time Clock Module for arduino UNO MEGA Development Board Diy Starter Kit

This real-time clock, DS1302, can calculate seconds, minutes, hours, days, weeks, months, and years, including leap year adjustments. It features 31 8-bit temporary data storage RAM and a serial I/O port mode to minimize pin count.

It supports a wide operating voltage of 2.0V, with a working current of less than 300nA at 2.0V. Data transfer for reading/writing clock or RAM data can be done via two methods: single-byte transfer and multi-byte transmission character group mode. The module comes in an 8-pin DIP package or an optional 8-pin SOIC package for surface mount, offering a simple 3-wire interface compatible with TTL Vcc = 5V. An optional industrial temperature range of -40°C to +85°C is available, along with a dual power supply for the main and backup power.

DS1302 real-time clock module parameters are as follows:

• PCB is a single-panel, size: 44mm * 23mm * 1.6mm
• Comes with 4 positioning holes, diameter 3.1mm
• Backup battery is an authentic celestial sphere CR2032, voltage 3V, current 260mAh, non-rechargeable. Theoretical data retention time is greater than 10 years!
• Crystal is 32.768KHz, Japan imported crystal, matching capacitance of 6pF, size 2 * 6mm
• DS1302 8-pin plug-in large chip, with IC Block below the chip, easy to replace and plug the chip
• Module operating voltage is compatible with 3.3V / 5V, and 5V and 3.3V single-chip connection
• Operating temperature: 0°C --- 70°C

Wiring method (program provided as an example; you can access any IO port and modify the port definition in the program):

• VCC + 5V / 3.3V
• GND GND
• CLK P02
• DAT P01
• RST P00

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