TTL IC PinOuts

I am adding TTL (Transistor -  Transistor Logic) IC PinOut diagrams for the ICs 7400, 7402, 7404, 7408, 7410, 7411, 7414, 7420, 7421, 7432, 7442, 7446, 7447, 7473, 7474, 7476, 7483, 7485, 7486, 7490, 7492, 7493, 7495, 74121, 74123, 74138, 74139, 74150, 74151, 74153, 74154, 74155, 74157, 74160, 74162, 74161, 74163, 74190, 74191, 74192, 74193, 74194, 74195, 7488 and 7489. This may be useful for electronics lab for engineering or poly diploma courses. I am adding it as photos here. To download it as pdf, click here.