| Features Number of Channels FIFO Protocol Voltage - Supply With Parallel Port With Auto Flow Control With IrDA Encoder Decoder With False Start Bit Detection With Modem Control With CMOS Mounting Type Package / Case | Transceiver 1, UART - RS232, RS485 4.5 V ~ 5.5 V - - Yes Yes - Yes Surface Mount 28-SOIC (0.295, 7.50mm Width) 28-SOIC W |