3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver 20-TSSOP 0 to 70
MAX3223CPWRG4 Dual UART Transceiver, 2-Receiver, 2-Transmitter, 250Kbps, 5V, TSSOP20
Dual UART Transceiver, 250Kbps, 5V, 1mA, Surface Mount TSSOP20