SN74LVTH18514DGGR Scan Test Device with 20-bit universal Bus Transceiver by Texas Instruments. Package: Surface Mount TSSOP-64 A member of the Texas Instruments SCOPE Family of Testability Products. Download Texas Instruments SN74LVTH18514DGGR .pdf datasheet: Status: NOS (New Old Stock) ex RS Components. sealed individually in shielding bags. Legacy RS Stcok code: RS451-4014 RoHS compliant: YES