74ABT543CSCIC TRANSCVR TRI-ST 8BIT 24SOIC|FAIRCHILD SEMICONDUCTOR|Lead free|RoHS Compliant SN74ABT543ADW 74ABT543AD,112 74ABT543CSCXIC TRANSCVR TRI-ST 8BIT 24SOIC|FAIRCHILD SEMICONDUCTOR|Lead free|RoHS Compliant SN74ABT543ADWR SN74ABT543ADWR