these integrated circuits are designed for use in interfacing between ttl-type digital systems and differential...
Dual Differential Driver/Receiver IC, 10Mbps, 5V, 16-PDIP
Dual Differential Driver/Receiver 10Mbps 5V 16-SOIC
Differential Line Transreceiver 8-PDIP 0 to 70
SN75117JG
Dual Differential Driver/Receiver Pairs 16-SO -20 to 85
T10 Single Line Phone W/
Dual Differential Driver/ eceiver Pairs 16-PDIP -20 to 85