DS3231 AT24C32 IIC Module Precision Clock Module (without battery) DS3231 Memory Module

Description

DS3231 AT24C32 IIC Precision Clock & Memory Module (No Battery)

Keep your embedded projects running with uncompromised timekeeping and reliable non‑volatile storage. The DS3231 AT24C32 IIC Module combines an ultra‑accurate DS3231 real‑time clock (RTC) with a 32‑Kbit AT24C32 EEPROM, all on a compact I²C‑friendly board. Ideal for data logging, industrial automation, and IoT devices that need precise time stamps and persistent configuration.

Key Highlights

• Dual Functionality: Integrated DS3231 RTC + AT24C32 EEPROM in a single, low‑profile module.
• High Accuracy: ±2 ppm temperature‑compensated crystal ensures sub‑second drift over 10 years.
• I²C Interface: 7‑pin I²C bus (SCL/SDA) for seamless integration with Arduino, Raspberry Pi, STM32, ESP32, and more.
• Wide Voltage Range: Operates from 3.3 V to 5.5 V, making it compatible with most microcontrollers.
• No Battery Required: Power‑on reset capability; simply supply power to maintain time when the system is active.
• Compact & Durable: PCB footprint < 20 mm × 20 mm, robust solder pads for reliable assembly.
• Easy to Program: Standard I²C commands for time setting, alarm configuration, and EEPROM read/write.

Technical Specifications

• RTC: DS3231 – 32‑kHz crystal, temperature compensation, 0–99 °C operating range.
• Memory: AT24C32 – 32 Kbit (4 K × 8) EEPROM, 3.3 V/5.5 V supply, I²C address 0x50.
• Power Supply: 3.3 V–5.5 V, typical current < 15 mA.
• Package: 7‑pin DIP / surface‑mount variant available.
• Operating Temperature: –40 °C to +85 °C.

Applications

• Data logging with timestamp accuracy
• Industrial control systems needing reliable time stamps
• Smart home devices that store configuration data
• IoT gateways requiring non‑volatile memory and real‑time clock
• Any project that demands a compact, low‑power timekeeping solution

Why Choose This Module?

By combining a proven DS3231 RTC with a high‑density AT24C32 EEPROM, this module eliminates the need for separate chips, saving board space and simplifying firmware. The absence of a battery reduces maintenance and cost, while the I²C interface ensures quick integration into existing designs. Whether you’re prototyping or deploying a final product, this module delivers precision, reliability, and ease of use.

Compatibility & Integration

Compatible with popular development boards (Arduino Uno, Nano, ESP32, Raspberry Pi, STM32, PIC, etc.) and supported by most I²C libraries. Pinout: VCC, GND, SDA, SCL, A0, A1, A2 (address pins). Connect, set the time via software, and start logging—no additional components required.