74LCX257SJXMULTIPLEXER QUAD 2IN LV 16SOP|FAIRCHILD SEMICONDUCTOR|Lead free|RoHS Compliant 74LCX257MTCX MC74LCX257MELG 74LCX257SJMULTIPLEXER QUAD 2IN LV 16SOP|FAIRCHILD SEMICONDUCTOR|Lead free|RoHS Compliant 74LCX257MTCX MC74LCX257MG