DS3231 is a low-cost, high-precision I2C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. It can maintain seconds, minutes, hours, weekdays, dates, months, and years. The product provides two programmable calendar alarms and a programmable square wave output. It is suitable for applications such as servers, electricity meters, remote information processing systems, and GPS.
The DS3231 is a low‑cost, high‑accuracy real‑time clock with an integrated crystal oscillator (TCXO) and battery backup. It provides timekeeping of seconds, minutes, hours, day, date, month, and year, with optional 12‑hour or 24‑hour format and a programmable square‑wave output.
The datasheet details absolute maximum ratings, recommended operating conditions, electrical characteristics, timing parameters, and package information for the 16‑pin SOIC version (DS3231S) and its temperature‑graded variant (DS3231SN). This manual is written in Japanese.
| Supply Voltage (VCC) | 2.3 V – 5.5 V |
|---|---|
| Backup Battery Voltage (VBAT) | 2.3 V – 5.5 V |
The DS3231 operates from 2.3 V to 5.5 V on the VCC pin.