i hate all 74xx sereis of ic (Texas instrumentation). man what is the point of making such kind of ic which has reverse current flow in logic high . i can not directly cascade 7408 ic to 7400,7475,7404 etc. i require transistors for interfacing.now if thats the case i shell use simple ttl logic to make and gate. it will not be costly also.when ever i use them they easily get ground through my body.
same is the case with 7475 d latch ic. what a stupid i was to purchase it just look at its data sheet . it requires 20uA an 80uA as its input How the hell would that be achieved very high value of resistence would be required if i use 3V of supply. it gives 400uA at its output i dont think any thing could be connected to it.
is there no company which makes logic ic .can any body here just please tell me any other sereis of ic that can power normal led directly