IC TXRX RS232/485/422 10Mbps 2Tx/2Rx 20SSOP
20-Pin Dual-Line Transceiver, 3.3V, 5.5V, 5.5mA, SSOP-20
RS-232/422/485 Transceiver, Full Duplex, 10Mbps, 5.5V, SSOP
Line Transceiver,