74HC51 2-wide 2-input, 2-wide 3-input AND-OR-INVERT Gate
74HC533 Octal D-type transparent latch; 3-state; inverting
74HC533D-T 8-Bit D-Type Latch
74HC534 Octal D-type flip-flop; positive edge-trigger; 3-state; inverting
74HC534D Octal D-Type Flip-Flop
74HC534D-T Octal D-Type Flip-Flop
74HC534N Octal D-Type Flip-Flop
74HC534U Octal D-type flip-flop; positive edge-trigger; 3-state; inverting
74HC540 Octal buffer/line driver; 3-state; inverting
74HC540D Octal buffer/line driver; 3-state; inverting
74HC540D-T 8-Bit Inverting Buffer/Driver
74HC540DB Octal buffer/line driver; 3-state; inverting
74HC540N Octal buffer/line driver; 3-state; inverting
74HC540U Octal buffer/line driver; 3-state; inverting
74HC541 Octal buffer/line driver; 3-state