Chapter#5: Counters

All exercise Short Questions of Counters book for BS/MSc Physics students.

Q.1 Show how the 74LS93A can be used as a modulus-12 counter.

Q.2 Explain the function of the preset feature of counters such as the 74LS160 and the 74HC163.

Q.3 How many states does a modulus-14 counter have? What is the minimum number of flip-flops required?

Q.4 Describe the purpose of the ENP and ENT inputs and the RCO output for the two specific counters.

Q.5 A 4-bit up/down binary counter is in the DOWN mode and in the 1010 state. On the next clock pulse, to what state does the counter go?

Q.6 A flip-flop is presently in the RESET state and must go to the SET state on the next clock-pulse. What must and be?

Q.7 A flip-flop is presently in the SET state and remain SET state on the next clock-pulse. What must and K be?

Q.8 How many decade counters are necessary to implement a divide-by-1000(modulus-1000) counter? A divide-by-10000?

Q.9 What is Q-state glitch?