74VHCT244AMTRIC BUFF/DVR TRI-ST DUAL 20SOIC|STMICROELECTRONICS|Lead free|RoHS Compliant SN74LV244ATDWR 74VHCT244AMTRIC BUFF/DVR TRI-ST DUAL 20SOIC|STMICROELECTRONICS (VA)|Lead free|RoHS Compliant SN74LV244ATDWR