Mura bhfuil do shuíomh liostaithe, roghnaigh ceann amháin díobh seo a leanas le do thoil:
Renesas Electronics America Inc.
IC TXRX SGL RS232 3-5.5V 16TSSOP.
IC TXRX 2/2 FULL RS232 16SSOP.
STMicroelectronics
IC TRANSCEIVER 5.5V RS232 28TSSO.
IC TXRX 3/5 RS232 FULL 28TSSOP.