Description
Features:
- Size: 38mm (length) * 22mm (W) * 14mm (height)
- Weight: 8g
- Operating voltage :3.3 – 5 .5 V
- Clock chip: high-precision clock chip DS3231
- Clock Accuracy :0-40 ℃ range, the accuracy 2ppm, the error was about 1 minute
- Calendar alarm clock with two
- Programmable square-wave output
- Real time clock generator seconds, minutes, hours, day, date, month and year timing and provide valid until the year 2100 leap year compensation
- Chip temperature sensor comes with an accuracy of ± 3 ℃
- Memory chips: AT24C32 (storage capacity 32K)
- I2C bus interface, the maximum transmission speed of 400KHz (working voltage of 5V)
