Question

IC 7493 consist of ____________

(a) 4 S-R flip-flop

(b) 4 J-K flip-flop

(c) 4 master-slave flip-flop

(d) 4 D flip-flop

This question was addressed to me in an international level competition.

Question is from Counter ICs topic in division Counters of Digital Circuits

Answer 1

Correct answer is (c) 4 master-slave flip-flop

Explanation: IC 7493 consist of 4 J-K master-slave flip-flop. It is a MOD-16 counter with 2^4 = 16 states.