74ABT543CMTCIC TRANSCVR TRI-ST 8BIT 24TSSOP|FAIRCHILD SEMICONDUCTOR|Lead free|RoHS Compliant 74ABT543APW,112 74ABT543CMTCXIC TRANSCVR TRI-ST 8BIT 24TSSOP|FAIRCHILD SEMICONDUCTOR|Lead free|RoHS Compliant SN74ABT543APWR SN74ABT543APWR