DEcross-2023

3. The active low presets of the 3 flip flops of an asynchronous Mod 8 up counter is connected as NAND (Q0,Q1’,Q2’) where Q0 is the lsb. The modified counter ‘s modulus is
4. A mux has N data inputs, m control inputs and one output so that 2 power m is equal to N ( say True or false “T/F”))
5. A JK flip flop becomes D flip flop when J=K’ ( say True or false ))
6. For a base R number 231R=6610 the R value is ?
7. To make a single digit BCD adder, number of 4 input binary adders needed are?
8. Which code is NOT suitable for arithmetic as it is a NON sequential code
10. These counters suffer from decoding glitches.
11. The maximum modulus possible with single 7492 IC is

1. All BCD counters are decade counters because all decade counters are BCD counters (say True or false ))
2. no of 7483s needed to make a 16 bit adder is
4. _____ stands for Transistor Transistor Logic
5. The modulus of a 5 bit twisted ring counter cascaded with 5 bit ring counter is?
6. To implement EXOR function of 2 variables, minimum number of NAND ( fan in 2) gates needed is/are
9. A decoder is nothing but a _______ without data input