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【Exar】SP337EBCT-L/TR,RS-422/RS-485 接口 IC RS232/422/RS485 Transceiver Multi
SP337EBCY-L,IC TXRX RS232/422/485 28TSSOP
【Exar】SP337EBCY-L/TR,RS-422/RS-485 接口 IC RS232/422/RS485 Transceiver Multi