Questions of TTL Gates ..

[Mahmoud90]

Excuse me, I just need answers for these questions :

The first is : How is TTL NAND Gate modified to realize the logical AND function?
second : What is the purpose of e

ach element in the standard TTL AND gate in the fig. below ?
Attachment 71431

Finally .. What is the purpose of each element in the LSTTL NOR gate in the fig. below ?


Thanks in advance

Mahmoud​

 

[exnol]

Can you make the question clearer. Its hard to understand what you are trying to say.
1. You can short the IPs of NAND to get NOT gate, connect this to the OP of another NAND and you will get aa AND gate. (Or are you trying for a circuit level change?)
In the second figure, the shaded area is one of the two input sections of a basic AND gate.