Communication interface chip UART485/232

The MC14551B is a digitally controlled analog switch. The device implements a 4PDT solid-state switch with low on-resistance and very low off-leakage current. Analog signal control over the full supply voltage range is possible.

3.3-V, 1:1 (SPST), 10-channel general-purpose FET bus switch with 2 control inputs and level shifter 24-TSSOP -40 to 85