Songhe DS3231 DS3231SN Real Time Clock Module AT24C32 RTC Clock Module IIC Without Battery 3.3V – 5 .5V for Arduino Raspberry Pi (5PCS)
(as of Jan 12,2023 18:06:53 UTC – Details)
Because review said need SN, so we now we updated to SN/October 5, 2021 1 Size about: 38mm (length) * 22mm (W) * 14mm (height) 2 Weight: 8g 3 Operating voltage :3.3 – 5 .5 V 4 clock chip: high-precision clock chip DS3231 5 Clock Accuracy :0-40 ° range, the accuracy 2ppm, the error was about 1 minute 6 calendar alarm clock with two 7 programmable square-wave output 8 Real time clock generator seconds, minutes, hours, day, date, month and year timing and provide valid until the year 2100 leap year compensation 9 chip temperature sensor comes with an accuracy of ± 3 ° 10 memory chips: AT24C32 (storage capacity 32K) 11.IIC bus interface, the maximum transmission speed of 400KHz (working voltage of 5V) 12 can be cascaded with other IIC device, 24C32 addresses can be shorted A0/A1/A2 modify default address is 0x57 13 nsure the system after power failure, the clock move any natural normal 14 Packing: single anti-static packaging Wiring instructions (for Arduino uno r3 for example): SCL → A5 SDA → A4 VCC → 5V GND → GND
Clock chip: high-precision clock chip DS3231SN
is a low-cost, extremely accurate I2C real-time clock (RTC), with an integrated temperature-compensated crystal oscillator (TCXO) and crystal.
The device incorporates a battery input, disconnect the main power supply and maintains accurate timekeeping.
Integrated oscillator improve long-term accuracy of the device and reduces the number of components of the production line.
The DS3231 is available in commercial and industrial temperature ranges, using a 16-pin 300mil SO package.
RTC maintains seconds, minutes, hours, day, date, month, and year information.
Less than 31 days of the month, the end date will be automatically adjusted, including corrections for leap year.