DS3231M in DS3231 / DS1307 RTC Family
The DS3231M, manufactured by Analog Devices (formerly Maxim Integrated), is a low-cost, high-precision, I2C real-time clock (RTC) featuring an integrated Microelectromechanical Systems (MEMS) resonator. Unlike standard crystals, the MEMS design provides superior vibration resistance and long-term stability. This family is designed for applications requiring consistent timekeeping accuracy across a wide temperature range of -40 to +85 degrees Celsius without external calibration, offering an accuracy rating of plus or minus 5 parts per million.
Variants in This Sub-Family
Variants within the DS3231M family primarily focus on package type and lead-free compliance. The standard DS3231M+ is housed in an 8-pin SOIC or 16-pin SOIC package. While the core MEMS and digital logic remain identical across the subfamily, engineers should verify specific part numbers for tape-and-reel options or moisture sensitivity levels. Note that while the DS3231M is pin-compatible with the original DS3231, it utilizes a different internal resonator technology.
