3-Receiver 5-Transmitter 250Kbps Surface Mount Bus Transceiver
5DRV/3RCV RS232 IC, 250Kbps, 5V, 28-SOIC
IC 5DRV/3RCV RS232 5V 28-SOIC
Quint Transmitter Triple Receiver RS-232 28-Pin SOIC W T/R