DM74ALS253MIC DATA SELECTOR/MUX DUAL 16SOIC|FAIRCHILD SEMICONDUCTOR|Lead free|RoHS Compliant SN74ALS253DE4 SN74ALS253D DM74ALS253MXIC DATA SELECTOR/MUX DUAL 16SOIC|FAIRCHILD SEMICONDUCTOR|Lead free|RoHS Compliant SN74ALS253DRE4 SN74ALS253DR