Features of Seiko Epson RTC 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.
Video contents: What is Epson's RTC module?
Technical tools download for RTC Module
Main features
• The Low Power consumption configuration allows the RTC 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 RTC module.
• AEC-Q100/200 compatible products are also available.
Recommended product lineups
| Grade | Product Name | Main features | Interface | Backup current consumption Typ.(3V) [µA] |
Operating Temperature Max. |
DTCXO | Unique Function | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Power Switch | Reset Output |
Time Stamp |
Event input pin |
||||||||
| Industrial, Consumer |
RX8901CE [New] |
High Accuracy Time Stamp |
I2C | 0.24 | +105℃ | √ | √ | 32 times | √ | ||
| RX4901CE [New] |
High Accuracy Time Stamp |
SPI | 0.24 | +105℃ | √ | √ | 32 times | √ | |||
| RX8111CE | Low Power Time Stamp |
I2C | 0.1 | +85℃ | √ | 8 times | √ | ||||
| RX4111CE | Low Power Time Stamp |
SPI | 0.1 | +85℃ | √ | 8 times | |||||
| RX8130CE | Reset output, Backup battery charge control |
I2C | 0.3 | +85℃ | √ | √ | |||||
| RX8804CE | High Stability | I2C | 0.35 | +105℃ | √ | 1 times | √ | ||||
| RX8900CE | High Stability, |
I2C | 0.7 | +85℃ | √ | √ | |||||
| Automotive | RA8000CE [New] |
High Stability, up to +125℃ AEC-Q100 |
I2C | 0.3 | +125℃ | √ | √ | 2 times | √ | ||
| RA4000CE [New] |
High Stability, up to +125℃ AEC-Q100 |
SPI | 0.3 | +125℃ | √ | √ | 2 times | √ | |||
| RA8804CE | High Accuracy AEC-Q100 |
I2C | 0.35 | +105℃ | √ | 1 times | √ | ||||
| RA8900CE | High Accuracy AEC-Q100 |
I2C | 0.7 | +85℃ | √ | √ | |||||
Links
Video contents: How the RTC Module works
Video contents: RTC Demo: Remote IoT Environmental Sensor
Video contents: RTC selection guide by Use cases
Video contents: How to use RTC 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
Video contents: Overcoming Common Design Challenges Suggestion with RTC Module(RTC)
RTC Module: RX8900CE / RX8804CE Evaluation Tools
