DM74ALS541WMIC BUFF/DVR TRI-ST 8BIT 20SOIC|FAIRCHILD SEMICONDUCTOR|Lead free|RoHS Compliant SN74ALS541DW DM74ALS541WMXIC BUFF/DVR TRI-ST 8BIT 20SOIC|FAIRCHILD SEMICONDUCTOR|Lead free|RoHS Compliant SN74ALS541DWR SN74ALS541DWR SN74ALS541DWRE4