The DS1302 real-time clock (RTC) works very much like a watch. The RTC module accurately keeps time with a precise oscillator and is maintained with a small battery . It is used to give an accurate date and time in many applications. The RTC module is ideal in any time-critical applications like attendance systems, digital cameras, automated sprinkler systems, or a time and calendar display.
Pin configuration :
VCC2 → +5 V/3.3V
GND → GND
CLK → P02
DAT → P01
RST → P00
Specifications:
- Crystal 32.768KHz, matching capacitance 6pF
- DS1302 8-pin SMD homemade chips
- Seconds, Minutes, Hours, Day of Month, Day of Week, and Year
General Specification | |
IC Chip | DS1302 |
Battery | CR1220 |
Crystal | 32.768KHz |
Operating Temperature (°C) | 0 to 80 |
PCB Size ( L x W ) mm | 26 x 16 |
Weight (gm) | 3 |
Shipment Weight | 0.005 kg |
Shipment Dimensions | 8 × 6 × 3 cm |
Documentation:
- Datasheet
- Arduino Playground
- Daylight saving time
- Arduino Playground Time
- Months of the year in many different languages
- Arduino Playground DS1302 Example
Package Includes:
1 x DS1302 Real Time Clock Module (DS1302Z clock chip,32.768KHZ crystal)