74LS253.pdf 54LS253 DM54LS253 DM74LS253 TRI-STATE Data Selectors Multiplexers June 1989 54LS253 DM54LS253 DM74LS253 TRI-STATE Data Selectors Multiplexers General Description Features Each of these Schottky-clamped data selectors multiplex- Y TRI-STATE version of LS153 with same pinout ers contains inverters and drivers to supply fully comple- Y Scho……