ICL3243 Series 250 Mbps 5.5 V RS-232 Transmitter/Receiver - TSSOP-28
±15kV ESD Protected, +3V to +5.5V, 1µA, 250kbps, RS-232 Transmitters/Receivers
IC TXRX RS232 DUAL ESD 20TSSOP
IC TXRX RS232 ESD 28SSOP