TECNOULAB 5pcs DS3231 AT24C32 IIC Precision Clock Module

【DS3231】DS3231 is a low-cost, highly accurate I2C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device incorporates a battery input, disconnects the main power supply and keeps accurate time. The integrated oscillator improves the long-term accuracy of the device and reduces the number of components on the production line. 【compact design】 Dimensions: 38mm (length) * 22mm (width) * 14mm (height); Weight: 8g; Operating voltage: 3.3 - 5.5V; Clock chip: DS3231 high-precision clock chip; Clock accuracy: range of 0-40, accuracy of 2ppm, error of about 1 minute; 【COMPATIBILITY】Calendar alarm clock with two; Programmable square wave output; Real time clock generator seconds, minutes, hours, day, date, month and year and time valid until the year 2100 leap year; The chip temperature sensor has an accuracy of ±3; Memory chip: AT24C32 (32K storage capacity); 【High performance】 IIC bus interface interface, the maximum transmission rate of 400KHz (working voltage of 5V); Can be cascaded with other IIC devices, 24C32 addresses can be shortened A0/A1/A2 modify the default address is 0x57; With CR2032 rechargeable battery, in order to ensure the system work after a power failure, the clock naturally moves normally; Packaging: single anti-static packaging 【CONTAINS THE PACKAGE】5pcs x DS3231 AT24C32 IIC Precision Clock Module (without battery)