Triple Differential Bus Transceiver 20-SOIC 0 to 70
3-Channel Half-Duplex Bus Transceiver, 20Mbps, 5V, SOIC-20
Triple Transmitter/Receiver RS-422/RS-485 20-Pin SOIC Tube
SN75ALS171A 3-Transceiver 20Mbps Half-Duplex SOIC-20
