The DS3231 Real-Time Clock (RTC) Module is a highly accurate, breadboard-friendly I2C real-time clock solution designed for precise timekeeping in a range of applications. Featuring the DS3231 RTC chip and an integrated AT24C32 EEPROM, this module offers exceptional accuracy and reliability. The DS3231 RTC includes a temperature-compensated crystal oscillator (TCXO) and a built-in comparator to monitor VCC status and switch to backup power when necessary. It supports a wide range of operating voltages and is compatible with Arduino boards, Raspberry Pi, and other microcontrollers.
Features
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Size: 38mm (length) x 22mm (width) x 14mm (height)
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Weight: 8g
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Operating Voltage: 3.3V to 5.5V
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Clock Chip: High-precision DS3231 RTC
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Clock Accuracy: ±2ppm within a temperature range of 0°C to 40°C, with a time error of about 1 minute per year
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Calendar: Real-time clock generator with seconds, minutes, hours, day, date, month, and year; valid until the year 2100 with leap year compensation
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Alarm: Dual programmable calendar alarms
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Output: Programmable square-wave output
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Temperature Sensor: Built-in 10-bit temperature sensor with ±3°C accuracy and 0.25°C resolution
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Memory: AT24C32 EEPROM with 32Kb (32,768 bits) of non-volatile memory
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Interface: I2C bus with a maximum transmission speed of 400kHz
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Battery Holder: Designed for a 2032 coin cell battery (battery not included)
Specifications
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Operating Voltage (VDC): 2.7V ~ 5.5V
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Voltage Supply for RTC: 2.2V ~ 5.5V
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I2C Interface: Fast (400kHz) I2C Interface
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Time Format: HH:MM(12/24 hr)
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Date Format: YY-MM-DD-dd
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Temperature Sensor Resolution: 0.25°C
Product Includes:
1 x DS3231 Real-Time Clock Memory Module (Battery not included)
