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T-Type flip flop from NAND gates

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fxdif

Industrial
Nov 19, 2003
17
Is it possible to construct a T-Type flip flop just from NAND gates?

TIA

 
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It certainly is possible but should only be done as a student exercise. Old TI data books have schematics of old level sensitive master slave FFs. These are easilly changed to T type.

Integrated FFs have internal analog design parameters that guarante FF operation. FFs built from nand gates may not always work depending on differential speed of the gates.
 
Hi, the theory is that any logic function can be built using 2 input nand gates. Early asics used to be known as "sea of gates".
 
I heard about some students who were given the task:
Construct a (quite slow I guess) D-FF by using relays.

As I understand, it was not that easy :)
 
To be more precisely, the base is a master-slave FF. This is accomplished from two S-R FFs (two NANDs) and associated logic. Then, connect Q output to K (inverting) input and /Q (inverted output) to J (non-inverting input). A T type FF is also a one stage divide-by-2 register.

try
 
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