10PCS DS3231 AT24C32 IIC RTC Module Clock Timer Memory Module Beats Replace DS1307 I2C RTC Board (Batteries not Included) + 20 PCS Male to Female Jumper Wire Cable

Two time-of-day alarms Operation voltage: 3.3-5.5V Fast (400kHz) I2C Interface Memory chips: AT24C32 (storage capacity 32K) Application: Servers/Telematics/Utility Power Meters/GPS DS3231 AT24C32 Clock Module Real Time Clock Module IIC RTC Module . Calendar alarm clock with two programmable square-wave output . Generating seconds, minutes, hours, day, month and year information. Wiring instructions: SCL→A5 SDA→A4 VCC→5V GND→GND Package included: 10 X DS3231 AT24C32 IIC Module 20 X Female to Male Cable

• DS3231 16-pin memory chips - AT24C32 ,extremely accurate I2C real-time clock (RTC), with an integrated temperature-compensated crystal oscillator (TCXO) and crystal.
• Integrated oscillator improve long-term accuracy of the device and reduces the number of components of the production line.
• Provides two configurable alarm clock and a calendar can be set to a square wave output. Address and data are transferred serially through an I2C bidirectional bus.
• Highly accurate RTC completely manages all timekeeping functions.The device incorporates a battery input, disconnect the main power supply and maintains accurate timekeeping.
• A precision temperature-compensated voltage reference and comparator circuit monitors the status of VCC to detect power failures, provide a reset output. In addition, RST pin is monitored as generating a μP reset.