【TRIAD MAGNETICS】SP-49,TRANS 300/600 OHM IMPEDNCE AUDIO
SP490CN-L,IC TXRX RS485 FULL DUPLEX 8NSOIC
【Exar】SP490CN-L/TR,通用总线函数 Full Duplex RS-485 s
SP490CS-L,IC TXRX RS485 FULL DUPLEX 8DIP
SP490ECN-L,IC TXRX RS485 FULL DUPLEX 8NSOIC
【Exar】SP490ECN-L/TR,通用总线函数 Full Duplex RS-485 s
SP490ECP-L,IC TXRX RS485 FULL DUPLEX 8PDIP
SP490EEN-L,IC TXRX RS485 FULL DUPLEX 8NSOIC
