Digital Logic Circuits: Unit I: (b) Digital Logic Families

University Questions with Answers (Long Answered Questions)

Digital Logic Circuits | Digital Logic Families

Digital Logic Circuits: Unit I: (b) Digital Logic Families : University Questions with Answers (Long Answered Questions)

University Questions with Answers

(Long Answered Questions)

(Regulation 2008)

May-10

Q.1 Compare all the IC logic families based on

1) Power consumption

2) Fan out

3) Power dissipation

4) Propagation delay

5) Switching speed

6) Noise margin.

Dec.-10

Q.2 Explain the concept, operation and characteristics of TTL family. [Section 2.5] [8]

Q.3 Explain the concept, operation and characteristics of CMOS technology. [Section 2.6] [8]

Dec.-11

Q.4 Draw and explain the NOR gate using TTL logic. [Section 2.5] [8]

Q.5 Explain the characteristics of CMOS family.  [Section 2.6] [8]

Dec.-12

Q.6    Compare the characteristics of TTL, ECL and CMOS logic families. [Section 2.8] [6]

Dec.-14

Q.7 Design a TTL logic circuit for a 3-input NAND gate. [Section 2.5]      [8]

Q.8 Draw the MOS logic circuit for NOT gate and explain its operation. [Section 2.6]  [8]

May-15

Q.9 With circuit schematic, explain the operation of a two input TTL NAND gate with totem-pole output. [Section 2.5.2]   [10]

Q.10 Compare totem pole and open collector outputs. [Section 2.5.6]        [6]

Dec.-15

Q.11 Draw the CMOS logic circuit for NOR gate and explain its operation. [Section 2.6.5]    [8]

May-16

Q.12 With circuit schematic explain the operation of a two input TTL NAND gate. [Section 2.5.2] [8]

Q.13 With circuit schematic and explain the operation and characteristics of a ECL gate. [Section 2.7] [8]

Dec.-16

Q.14 Explain with an aid of circuit diagram the operation of 2 input CMOS NAND gate and list out its advantages over other logic families. [Sections 2.6.4 and 2.6.7] [10]

May-17

Q.15 With circuit schematic explain the working of a two - input TTL NAND gate.

(Refer section 2.5.2)       [7]

Q.16 Compare totem pole and open collector outputs. (Refer section 2.5.6)         [6]

Q.17 Design a CMOS inverter and explain its operation. Comment on its characteristics such as Fan - in, Fan - out power dissipation, propagation delay and noise margin. Compare its advantages over other logic families. (Refer sections 2.6.3, 2.2 and 2.6.7)  [15]

Q.18 Write short notes on following :

i) RTL ii) DTL Hi) TTL and iv) ECL

(Refer sections 2.3, 2.4, 2.5 and 2.7) [13]

Dec.-18

Q.19 Explain the structure and working principles of TTL based Totem-pole output configuration. (Refer section 2.5.4)   [13]


Digital Logic Circuits: Unit I: (b) Digital Logic Families : Tag: : Digital Logic Circuits | Digital Logic Families - University Questions with Answers (Long Answered Questions)