74ALVT16821DGG,118IC 20BIT BUS TXRX D F-F 56TSSOP|NXP SEMICONDUCTORS|Lead free|RoHS Compliant SN74ALVTH16821GR 74ALVT16821DGG,112IC 20BIT BUS TXRX D F-F 56TSSOP|NXP SEMICONDUCTORS|Lead free|RoHS Compliant SN74ALVTH16821GR