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Designed for precision time keeping, Epson’s RX8804 real time clock module (RTC) uses Digitally Temperature-Compensated Crystal Oscillator (DTCXO) technology to achieve ±3.4 or ±8 ppm accuracy over temperature of -40 to +85 °C or -40 to +105 °C respectively, equivalent to 9 or 20 seconds per month. This high accuracy is essential for precise time keeping, as required by eMeters, lighting, and other industrial or outdoor applications.
Epson’s RX8804 includes a crystal, a digitally temperature-compensated crystal oscillator (DTCXO), and counters to keep track of time and date. Epson’s RX8804 also includes automatic battery backup and time-keeping functions such as alarms and timers.
Epson’s RX8804 with a supply voltage of 1.6-5.5 V is low power 0.35 μA (typ) backup current, has a clock output of 1 Hz, 1024 Hz, or 32.768 kHz and is offered in a small package (3.2 x 2.5 x 1.0 mm3).
- Built-in kHz Crystal
- High Accuracy: ±3.4 ppm -40 to +85 °C (9 s/mo.) and ±8.0 ppm -40 to +105 °C (20 s/mo.)
- Small Size: 3.2 x 2..5 x 1.0 mm3
- Low power: 0.35 μA (typ) backup current
- Supply Voltage: 1.6-5.5 V (main), 1.5-5.5 V (battery backup)
Please see the link below for further details about this product.
Epson's wide range of Real Time Clock Modules with built-in XTAL save power, provide superior accuracy, and simplify system design. Thanks to a rich set of optional functions, such as alarms and time stamps, RTCs can cover multiple additional tasks beside the time keeping.