R2045S/D 4-wire Serial Interface Real Time Clock Module is a real-time clock module, built in CMOS real-time clock IC and crystal oscillator, connected to the CPU by four signal lines, CE, SCLK, SI, and SO, and configured to perform serial transmission of time and calendar data to the CPU.
The Ricoh R2045S/D is a real-time clock module built with a CMOS real-time clock IC and crystal oscillator. It connects to the CPU via four signal lines (CE, SCLK, SI, and SO) to perform serial transmission of time and calendar data. The module features high-precision oscillation adjusted to 0±5ppm at 25°C and offers super low power consumption of 0.48µA typical at 3V.
| Oscillation Frequency Deviation | 0±5ppm at 25°C |
|---|---|
| Time Keeping Voltage | 1.15V to 5.5V |
| Typical Power Consumption | 0.48uA at 3V |
| Operating Temperature | -40 to +85 °C |
| Storage Temperature | -55 to +125 °C |
| Clock Output Frequency | 32.768kHz |
| Max Input Voltage | 5.5V |
| Package Types | SOP 14 or SON22 |
The typical time keeping current is 0.48uA at 3V.
The module can operate from -40 to +85 °C.
Yes, it supports automatic identification of leap years up to the year 2099.