I²C/SPI UARTs
I2C/SPI Universal Asynchronous Receiver-Transmitter (UARTs) that include a simple 2-wire (I2C) or 4-wire (SPI) interface
Interface Brochure
Product Portfolio
                                            XR20M1170
                                        
                                        
                                    
                                                I²C/SPI UART with 64-Byte FIFO
                                            
                                            
                                                    
            
    NRND
        (Not Recommended for New Designs)
                                                
                                             
                                            I²C/SPI UART with 64-Byte FIFO
                                    I2C/SPI
                                    1
                                    16
                                    12.5
                                    8
                                    64/64
                                    ✔
                                    ✔
                                    ✔
                                    ✔
                                    -
                                    ✔
                                    ✔
                                    -
                                    -
                                    1.62 to 3.63
                                    n/a;TSSOP-16,n/a;TSSOP-24,8;QFN-16,8;QFN-24
                                    VCC
                                    VCC
                                    -40 to 85
                                    TSSOP-16, TSSOP-24, QFN-16, QFN-24
                        Dual Channel I²C/SPI UART with 64-Byte FIFO
                                    I2C/SPI
                                    2
                                    16
                                    12.5
                                    8
                                    64/64
                                    ✔
                                    ✔
                                    ✔
                                    ✔
                                    -
                                    ✔
                                    ✔
                                    -
                                    -
                                    1.62 to 3.63
                                    8;QFN-32,
8;TSSOP-28
                                    VCC
                                    VCC
                                    -40 to 85
                                    QFN-32, TSSOP-28
                        
                                            XR20M1280
                                        
                                        
                                    
                                                I2C/SPI UART with 128-Byte FIFO and Integrated Level Shifters
                                            
                                            
                                                    
            
    Active
                                                
                                             
                                            I2C/SPI UART with 128-Byte FIFO and Integrated Level Shifters
                                    I2C/SPI
                                    1
                                    24
                                    16
                                    10
                                    128/128
                                    ✔
                                    ✔
                                    ✔
                                    ✔
                                    ✔
                                    ✔
                                    ✔
                                    ✔
                                    ✔
                                    1.62 to 3.63
                                    4;QFN-24,8;QFN-32
                                    5.5
                                    1.62-3.63
                                    -40 to 85
                                    QFN-24, QFN-32
                        