This site uses third-party website tracking technologies to provide and continually improve our services, and to display advertisements according to users' interests. I agree and may revoke or change my consent at any time with effect for the future.

National Semiconductor
June 1989
DM54S257/DM74S257, DM54S258/DM74S258 TRI-STATE® Quad 1 of 2 Data Selectors/Multiplexers
General Description
These Schottky-clamped high-performance multiplex
