List which pins need to be connected together on a 7493 to make a MOD-12 counter.(a) 12 to 1, 11 to 3, 9 to 2(b) 12 to 1, 11 to 3, 12 to 2(c) 12 to 1, 11 to 3, 8 to 2(d) 12 to 1, 11 to 3, 1 to 2I have been asked this question at a job interview.Enquiry is from Counter ICs topic in portion Counters of Digital Circuits

List which pins need to be connected together on a 7493 to make a MOD-

1.	List which pins need to be connected together on a 7493 to make a MOD-12 counter.(a) 12 to 1, 11 to 3, 9 to 2(b) 12 to 1, 11 to 3, 12 to 2(c) 12 to 1, 11 to 3, 8 to 2(d) 12 to 1, 11 to 3, 1 to 2I have been asked this question at a job interview.Enquiry is from Counter ICs topic in portion Counters of Digital Circuits
Answer» Correct choice is (C) 12 to 1, 11 to 3, 8 to 2 To EXPLAIN: IC-7493 is a MOD-16 counter. So maximum, it can have 16 states. A MOD-12 counter will have 12-states. Thus, it is clear from the diagram shown below: 12 & 1 are clear pins, 11 & 3 are clock pins, 8 & 2 are input for 7493 FF.

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