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Epson: RX8901CE/RX4901CE Real Time Clock Modules

Description

Epson’s RX8901CE and RX4901CE are versatile and high precision real-time clock modules with low power consumption ideal for applications such as smart meters, security equipment, and smart lighting. The integrated event system with up to 3 event inputs can be used to detect events and record their timestamp while the MCU remains in sleep mode, reducing system power consumption for longer battery life. The modules can record timestamps for 32 events in either FIFO or direct mode. They consume just 240 nanoamps from a 3V supply and feature a built-in power supply switching circuit that eliminates the need for external diodes and their losses. The modules offer time resolution down to 1/512th of a second and are highly stable across their entire operating temperature range. The RX8901CE has an I2C interface, while the RX4901CE is available with a 3- or 4-wire SPI interface.

About Manufacturer

Epson is a leading manufacturer of micro devices with the quality and performance to serve the automotive, IoT, consumer, and networking industries. On the semiconductor side, Epson bring more than 40 years of experience in IC design and manufacturing. Epson also offers evaluation boards, reference designs, debuggers and software libraries to engineers for rapid prototyping. Epson offers MCUs, LCD Controllers, Timing Devices, and Inertial Sensors.