Real Time Clocks (RTCs)
- Technology
- Real time clocks (RTC´s)
- Partner
- Epson
Epson’s extensive range of real time clocks should cater for all requirements. With their built in 32.768kHz watch crystal these RTCs cover all interfaces and have a wide choice of added features to choose from. With high stability , extended temperature products and those with low back up voltage and low current consumption the portfolio will ensure applications stay on time..
RX8111CE and RX4111CE (3.2×2.5mm) are new to the family. Available in I²C/SPI these small packages have the lowest current consumption and are packed with additional features including event detection.
RX8804CE and RA8804CE are 3.2×2.5mm too but as temperature compensated offer high stability to ±1.9ppm /0+50ºC. As automotive qualified the RA8804CE can provide ±8ppm/-40+105ºC
RX6110SA (10.1×7.4mm) loaded with functionally but with the added feature of battery power switching. Low 130nA typical current consumption, 5±23ppm/+25ºC tolerance makes it a solid member of the line up.

Range features
A high level overview of what this range offers
- Ideal for applications from Access Control to Industry 4, Smart Homes to Security
- Multitude Interfaces (SPI-Bus, I²C, Parallel)
- Variety of packages and footprints including compact designs for small applications.
- Automotive AEC-Q100 and AEC-Q200 options
- Built in 32.768kHz watch crystal
- Extensive range of features (Alarm, time stamp, memory, anti-tamper, power switching, event detection)
- High stability Options
- Low current consumption/low power components
What’s in this range?
All the variants in the range and a comparison of what they offer
Epson series | Package (mm) | Interface | Frequency tolerance (ppm) | Current consumption | Additional features |
---|---|---|---|---|---|
RX8111CE | 3.2×2.5×1.0 | I²C/SPI | 5±11.5ppm / +25℃ | 100nA / 3V typ 350nA / 3V max | Yes |
RX4111CE | 3.2×2.5×1.0 | I²C/SPI | 5±11.5ppm / +25℃ | 100nA / 3V typ 350nA / 3V max | Yes |
RX8804CE | 3.2×2.5×1.0 | I²C | ±1.9ppm/0~50℃ ±3.4ppm/-40~85℃ ±8ppm/-40~105℃ | 350nA / 3V typ 1500nA / 3V max | Yes |
RX8130CE | 3.2×2.5×1.0 | I²C | 5±23ppm / +25℃ | 300nA / 3V typ 500nA / 3V max | Yes |
RX6110SA | 10.1×7.4×3.3 | I²C/SPI | 5±23ppm / +25℃ | 130nA / 3V typ 250nA / 3V max | Yes |
RX8900CE | 10.1×7.4×3.3(SA) 3.2×2.5×1.0 (CE) | I²C | UA:±3.4ppm/ -40~85℃ UB:±5ppm/-40~85℃ | 700nA / 3V typ 1400nA / 3V max | Yes |