DLD IMPORTANT QUESTIONS

UNIT-4

1(a).Define Sequential logic circuit. Distinguish between synchronous and asynchronous sequential logic circuits.
(b)Discuss about SR and D flipflop with neat diagram and truth tables and excitation tables.
2(a). Discuss about JK and T flipflop with neat diagram and truth tables.
(b)Perform JK to T Flipflop Conversion.
3.What is Race –around-condition in JK flipflop and how it is avoided..Explain JK Master Slave flipflop.
4(a)What is Excitation table.Draw excitation tables for JK and T flipflops.
(b)Perform SR to T flipflop conversion.
5.Define the terms propogation delay,setup time, hold time.
6.Perform the following conversions
(a)SR to Jk  (b)JK to D

UNIT-5

1(a)Define the terms Register and Counter.Discuss about various Shift Registers.
(b)Briefly discuss about Buffer register and Controlled Buffer Register
4.Design a synchronous MOD-6 counter using D-flip-flop.
5.Design mod 11 counter using SR flipflop
6.Define the term counter.Distinguish between synchronous and asynchronous  counter

UNIT-6

1.Briefly  discuss about PROM..Implement a combinational logic circuit which accepts 3 bit binary information as input and generate its corresponding square as output using proper size PROM.
2.Briefly discuss about PLA.Implement BCD to Excess-3Code converter using PLA.
3.Briefly discuss about  PAL.Implement the following functions using PAL.
F1=∑m(0,1,7) anf F2=∑m(1,3,5,7)
4.Compare PROM,PLA,PAL.Implement BCD to Gray Code Converter using PROM.
5.Implement the function F1=m(0,1,5,15) F2=m(2,3,6,10) using PLA.

Digital Logic Design [ DLD] Subject Important questions : II MID Reviewed by Suresh Bojja on 11/18/2015 02:36:00 AM Rating: 5

## Subjects & Labs

AC (6) ADS (2) ATMEL (6) AWP (5) C- Language (3) CAO (5) CDAC (1) CMC (6) CN (10) Control Sys (2) CVSM (2) DBMS (1) DC (5) DIP (17) DLD (10) DS (4) DSD&DICA (9) DSP (6) EDC (45) Embedded (7) EMWTL (6) ENERGY AUDIT (1) Engg.Chemistry (11) Faculty Labs (1) Fuzzy (3) II MID (1) LICA (1) Linux OS (1) Materials (1) MATLAB (27) MCU IDE 8051 (1) MEMS (4) MPMC (57) MTECH (6) MWE (2) OC (1) PDC (9) Projects (8) RADAR (1) Research (9) RVSP (3) SC (1) Softwares (1) SS (2) STLD (19) TCSS (1) TSSN (1) TV Engg (1) VHDL (4) VLSI (8) WCN (1) WSN (2)