Communication interface chip UART485/232

CD4051B CMOS Single 8-Channel Analog Multiplexer and Demultiplexer with Logic Level Translation

SN65HVD231Q Automotive 3.3-V CAN Transceiver

0.75Ω on-state resistance, 5V, 2:1 (SPDT), 1-channel analog switch with 1.8V input logic level 6-DSBGA -40 to 85

4 Serial Expansion Chip, SPI control interface, each serial port independent send/receive, maximum baud rate 4Mbps, support full/half-duplex send/receive serial communications

3V to 5.5V Multi-Channel 500kbps RS-232 Line Driver/Receiver 28-SSOP 0 to 70 with +/-15kV IEC-ESD Protection

SPI to Uart serial port, the highest supported baud rate: 230Kbps