REALTIME CLOCK MODULE ICC (AT24C32 EEPROM 32K/DS3231)

PRODUCT INFORMATION:

The DS3231 is a low-cost, extremely accurate I2C real-time clock (RTC) module with integrated temperature-compensated crystal oscillator (TCXO). The board incorporates a battery backup which maintains accurate timekeeping in the event of main power supply disconnect. The integrated oscillator improves long-term accuracy of the device and reduces the number of components needed. A precision temperature-compensated voltage reference and comparator circuit monitors the status of VCC to detect power failures, provides a reset output, and if necessary, automatically switches to the battery power supply. When the main power returns to within the allowable range, the on-chip reset function can be used to reset the system microprocessor

The RTC maintains seconds, minutes, hours, day, date, month, and year information. The end of the month date will be automatically corrected (including corrections for leap year) for months with less than 31 days. The clock operates in 24 hours mode or AM / PM indication of the 12-hour format. The RTC module provides two configurable alarm clocks and a calendar can be set to a square wave output. Address and data are transferred serially through an I2C bi-directional bus. The module also includes an on-board AT24C32 EEPROM with 32K storage capacity that is also accessed via the I2C bus.

• Size: 38mm (length) * 22mm (W) * 14mm (height)
• Operating Voltage 3.3 - 5.0 V
• Clock chip: high-precision clock chip DS3231
• Clock Accuracy :0-40 range, the accuracy 2ppm, the error was about 1 minute
• 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)
• IIC bus interface, the maximum transmission speed of 400KHz (working voltage of 5V)
• Can be cascaded with other IIC device, 24C32 addresses can be shorted A0/A1/A2 modify default address is 0x57
• With rechargeable battery LIR2032, to ensure the system after power failure, the clock move any natural normal

 PACKAGE INCLUDES:

1x RTC Module