SP331
Programmable Dual RS-232/RS-485 Transceiver
+5V Only Operation Software Programmable RS-232 or RS-485
Selection Four RS-232 Transceivers in RS-232 Mode Two RS-485 Full-Duplex Transceivers in
RS-485 Mode Two RS-232 Transceivers and One RS-485
Transceiver in Dual Mode Self-Testing Loopback Mode Full Driver Tri-State (Hi-Z) Control Idea...