National Semiconductor DS89C387TMEA/NOPB Mounting Type: Surface Mount Number Of Drivers/receivers: 12/0 Package / Case: 48-SSOP Protocol: RS422 Series: - Type: Driver Voltage - Supply: 4.5 V ~ 5.5 V Other Names: *DS89C387TMEA, *DS89C387TMEA/NOPB, DS89C387TMEA