Dual Bus Transceiver, 250Kbps, 5V, 5.5V, Through Hole, DIP18
DUAL LINE TRANSCEIVER, PDIP18
RS-232 Bus Transceiver, Dual Tx/Rx, 18-Pin PDIP, 5V, 250KBd
RS-232 Bus Transceiver, 2 Tx/2 Rx, 250KBd, 5V, 18-Pin PDIP
IC DRVR/RCVR DUAL-RS232 5V 18DIP