ISL83483IBZ-TTXRX RS-485/422 3.3V LP 8-SOIC|INTERSIL|Lead free|RoHS Compliant ST75C176BDR SP3483EN-L/TR SP3494EN-L/TR ISL83483IBZ-TTXRX RS-485/422 3.3V LP 8-SOIC|INTERSIL (VA)|Lead free|RoHS Compliant SP3483EN-L SP3494EN-L ST75C176BDR