Unit: mm 19.20 20.32 Max 14 8 6.30 7.40 Max 1 2.39.
HD74LS51 - 2-wide 2-input/ 2-wide 3-input AND-OR-INVERT Gates
HD74LS51 - AND-OR-INVERT Gates
HD74LS51P - AND-OR-INVERT Gates