Digital Electronics - Combinational Logic Circuits - Discussion
Discussion Forum : Combinational Logic Circuits - Filling the Blanks (Q.No. 31)
31.
The ________ series of IC's are pin, function, and voltage-level compatible with the 74 series IC's.
Discussion:
1 comments Page 1 of 1.
KIRAN V said:
5 years ago
The series 74 was a designation for commercial grade TTL (transistor to transistor logic, a family circuit characteristic) and 54 was a designation for military temperature of the same design. The family had more or less matched speeds, and drive levels called TTL loads.
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