XR20M1170

XR20M1170 I2C/SPI UART with 64-Byte FIFO February 2, 2022 Rev. 1.1.3 GENERAL DESCRIPTION The XR20M11701 is a high performance universal asynchronous receiver and transmitter (UART) with 64 byte TX and RX FIFOs and a selectable I2C/SPI slave interface. The XR20M1170 operates from 1.62 to 3.63 volts. The enhanced features in the XR20M1170 include a programmable fractional baud rate generator, an 8X and 4X sampling rate that allows for a maximum baud rate of 16Mbps at 3.3V. The standard features include 16 selectable TX and RX FIFO trigger levels, automatic hardware (RTS/ CTS) and software (Xon/Xoff) flow control, and a complete modem interface. Onboard registers provide the user with operational status and data error flags. An internal loopback capability allows system diagnostics. The XR20M1170 is available in the 24-pin QFN, 16-pin QFN, 24-pin TSSOP and 16pin TSSOP packages. NOTE: 1 Covered by U.S. Patent #5,649,122 APPLICATIONS  Portable appliances  Battery-operated devices  Cellular data devices  Factory automation and process controls FEATURES  1.62 to 3.6 Volt operation  Selectable I2C/SPI interface  SPI clock frequency up to  18MHz at 3.3V  16MHz at 2.5V  8MHz at 1.8V  Full-featured UART  Data rate of up to 16Mbps at 3.3V  Data rate of up to 12.5Mbps at 2.5V  Data rate of up to 8Mbps at 1.8V  Fractional baud rate generator  Transmit and receive FIFOs of 64 bytes  16 selectable TX and RX FIFO trigger levels  Automatic hardware (RTS/CTS) flow control ...