74ACT240SJXIC INVERTER DUAL 4-INPUT 20SOP|FAIRCHILD SEMICONDUCTOR|Lead free|RoHS Compliant SN74ACT240NSRE4 74ACT240SJIC INVERTER DUAL 4-INPUT 20SOP|FAIRCHILD SEMICONDUCTOR|Lead free|RoHS Compliant 74ACT240SJX SN74ACT240NSRG4