XR20M1280 Datasheet - Exar

XR20M1280 I2C/SPI UART

The XR20M12801 (M1280) is a single-channel I2C/ SPI Universal Asynchronous Receiver and Transmitter (UART) with integrated level shifters and 128 bytes of transmit and receive FIFOs. For flexibility in a mixed voltage environment, the M1280 has 4 VCC pins. There is a VCC pin for the core, a VCC pin .

XR20M1280 Features

* increase the performance by simplifying the software routines. The Independent TX/RX Baud Rate Generator feature allows the transmitter and receiver to operate at different baud rates. In addition, the Fractional Baud Rate Generator feature provides flexibility for crystal/clock frequencies for gene

XR20M1280-Exar.pdf