DS3231 RTC Module Precise Real Time Clock I2C AT24C32 without cell

Description:- 

 DS3231 RTC  is a Precise Real-Time Clock Module with 32Kbit EEPROM and a built-in 10-bit temperature sensor having a resolution of 0.25C. The DS3231 RTC module Precise Real-Time Clock Module 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 and maintains accurate timekeeping when the main power to the device is interrupted.

Specification:-

•  1 Hz output pin SQW.
• 32 KHz output pin 32K.
• Voltage Supply: 2.2 V ~ 5.5 V (for RTC).
• Time Format: HH: MM: SS (12/24 hr).
• Date Format: YY-MM-DD-dd.
• DS 3231-based RTC with 2032 Battery Holder.

DATA SHEET AND USECASE

Features:

• High Accuracy: ±2ppm from 0°C to +40°C; ±3.5ppm from -40°C to +85°C.
• Timekeeping Functions: Keeps track of seconds, minutes, hours, day, date, month, and year with leap year compensation valid up to 2100.
• I²C Interface: Operates over a 400kHz I²C bus.
• Built-in Temperature Sensor: Provides ±3°C accuracy.
• Two Programmable Time-of-Day Alarms.
• Programmable Square-Wave Output.
• Battery Backup Input: Maintains timekeeping when main power is lost.