SP331 PDF File ( Datasheet )

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 Ideal for RS-232 to RS-485 conversion TI4 1 SEL_B 2 TX4 3 TX3 4 VCC 5 TX1 6 TX2 7 GND 8 C1+ 9 V+ (VDD) 10 C2+ 11 C1 12 C2 13 V (VSS) 14 SP331 28 TI3

® SP331 Programmable RS-232, RS-485 Transceiver s +5V Only Operation s Software Programmable RS-232 or RS-485 Selection s Four RS-232 Transceivers in RS-232 Mode s Two RS-485 Full-Duplex Transceivers in RS-485 Mode s Two RS-232 Transceivers and One RS-485 Transceiver in Dual Mode s Self-Testing Loopback Mode s Full Driver Tri-State (Hi-Z) Control s Ideal for RS-232 to RS-485 conversion DESCRIPTION… The SP331 is a programmable RS-232 and, or RS-485 transceiver IC. The SP331 contains four dr