Features of Seiko Epson Real Time Clock Module
Overview
Epson’s Real-Time Clock modules with built-in crystal oscillators support Low Power consumption and multifunctional systems with a variety of functions such as Wake-up Timers, Power Switch and Time Stamps, as well as Low Power consumption and highly accurate date and time management.
Main features
• The Low Power consumption configuration allows the Real Time Clock module to record timekeeping and system abnormalities on its own even when the main MCU is into sleep mode.
• Some products have a built-in temperature-compensated oscillator to guarantee and manage high-precision date and time information using only Real Time Clock module.
• AEC-Q100/200 compatible products are also available.
Recommended product lineups
| Grade | Product Name | Main features | Interface | Backup current consumption Typ.(3V) [µA] |
Unique Function | |||
|---|---|---|---|---|---|---|---|---|
| Power Switch | Time Stamp | Event input pin | others | |||||
| Industrial, Consumer |
RX8111CE | Low Power Time Stamp |
I2C | 0.1 | √ | 8 times | √ | |
| RX4111CE | Low Power< Time Stamp |
SPI | 0.1 | √ | 8 times | |||
| RX8130CE | Reset output, Backup battery charge control |
I2C | 0.3 | √ | ||||
| RX8804CE | High Stability, up to +105 °C |
I2C | 0.35 | 1 times | √ | SOUT Status OUT pin |
||
| RX8900CE | High Stability, |
I2C | 0.7 | √ | ||||
| Automotive | RA8804CE | High Stability, up to +105 °C AEC-Q100 |
I2C | 0.35 | 1 times | √ | SOUT Status OUT pin |
|
| RA8900CE | High Stability, AEC-Q100 |
I2C | 0.7 | √ | ||||
Links
Video contents: How to use Real Time Clock Module evaluation board(RX8900CE, RX8804CE)
Video contents: RX8111CE: Battery backup switchover function
Video contents: RX8111CE: Time stamp function
Video contents: RX8111CE: Wake up timer function
Video contents: RX4111CE: Battery backup switchover function
Video contents: RX8804CE, RA8804CE SOUT Function
Real Time Clock: RX8900CE / RX8804CE Evaluation Tools
Linux® Driver for Real Time Clock Module
