ST75C176BDRIC TXRX LOPWR RS485/422 8 SOIC|STMICROELECTRONICS|Lead free|RoHS Compliant ISL83483IBZ ISL83483IBZ-T SP3483EN-L/TR SP3494EN-L/TR ST75C176BDRIC TXRX LOPWR RS485/422 8 SOIC|STMICROELECTRONICS (VA)|Lead free|RoHS Compliant SP3483EN-L SP3494EN-L ISL83483IBZ ISL83483IBZ-T