OUT of pulse generators. 74ABT Amplitude Rep. Rate tW tR tF 3.0V 1MHz 500ns 2.5ns 2.5ns SA00012 1995 Sep 06 6 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: NXP: 74ABT573AD,112 74ABT573ADB,112 74ABT573ADB,118 74ABT573AD,118 74ABT573AN,112 74ABT573APW,112 74ABT573APW,118