Differential CMOS Line Driver and Receiver Pair 8-SOIC -40 to 85
EAR99 DS89C21 Tube RS422RS485 interface transceiver 5V 12mA 540.001716mg 30ns
Bus Transceiver, 20Mbps, 5V, 1 Driver/1 Receiver, SOIC
Interface IC RS422 SO-8, DS8921TM/NOPB, Texas Instruments