This document discusses digital logic gates including NOR, NAND-NOR, XOR, and XNOR gates. It describes their truth tables, functions, and applications. It also covers integrated circuits that contain logic gates like the 74xx series chips. These include quad NAND, NOR, AND, OR, and XOR gates. The document concludes with operational characteristics of different logic families such as TTL, CMOS, and ECL.

1. DIGITAL LOGIC DESIGN
LECTURE 05
BY-FARHAT ULLAH

2. NOR UNIVERSAL GATE
1 2
Input Output
A B F
0 0 0
0 1 1
1 0 1
1 1 1

3. NOR UNIVERSAL GATE
3
1
2
Input Output
A B F
0 0 0
0 1 0
1 0 0
1 1 1

4. NAND-NOR UNIVERSAL GATE
3
1
2
4
3
1
2
4

5. NAND GATE APPLICATIONS
Device Failure Alarm
ALARM

6. NOR GATE APPLICATIONS
Washing Machine Controller
Switch

7. XOR GATE
1 output
2 inputs
Multiple inputs
=10
0
0

8. XOR GATE FUNCTION
Input Output
A B F
0 0 0
0 1 1
1 0 1
1 1 0
BAF 

9. XOR GATE TIMING DIAGRAM
t0 t4 t5 t6t1 t2 t3

10. XNOR GATE
1 output
2 inputs
Multiple inputs =0
0
0

11. XNOR GATE FUNCTION
Input Output
A B F
0 0 1
0 1 0
1 0 0
1 1 1
BAF 

12. XNOR GATE TIMING
DIAGRAM
t0 t4 t5 t6t1 t2 t3

13. XOR GATE APPLICATIONS
Detecting odd number of 1’s
1
2
3
A
B
C
D

14. XNOR GATE APPLICATIONS
Detecting even number of 1’s
1
2
3
A
B
C
D

15. TTL/CMOS NOT GATE
+VCC
+V
Vo/p
Vi/p
+VDD
Vi/p
Vo/p
NPN
Transistor N-Type
MOSFET
P-Type
MOSFET

16. TYPE OF IC LOGIC GATES
74XX00 Quad 2-input NAND Gate
74XX02 Quad 2-input NOR Gate
74XX04 Hex Inverter
74XX08 Quad 2-input AND Gate
74XX10 Triple 3-input NAND Gate
74XX11 Triple 3-input AND Gate
74XX20 Dual 4-input NAND Gate

17. TYPE OF IC LOGIC GATES
74XX21 Dual 2-input AND Gate
74XX27 Triple 3-input NOR Gate
74XX30 Single 8-input NAND Gate
74XX32 Quad 2-input OR Gate
74XX86 Quad 2-input XOR Gate
74XX133 Single 13-input NAND Gate

18. LOGIC GATE INTEGRATED
CIRCUITS
1 2 3 4 5 6 7
891011121314
7432
Four 2-Input OR Gate
1 2 3 4 5 6 7
891011121314
7400
Four 2-Input NAND Gate
1 2 3 4 5 6 7
891011121314
7404
Hex Inverters
1 2 3 4 5 6 7
7408
Four 2-Input AND Gate
891011121314

19. LOGIC GATE INTEGRATED
CIRCUITS
1 2 3 4 5 6 7
891011121314
7486
Four 2-Input XOR Gate
1 2 3 4 5 6 7
891011121314
74266
Four 2-Input XNOR Gate
1 2 3 4 5 6 7
7402
Four 2-Input NOR Gate
891011121314

20. INTEGRATED CIRCUITS (IC)
CMOS Complementary Metal Oxide Logic
TTL Transistor-Transistor Logic
ECL Emitter Coupled Logic
PMOS p-channel MOS transistor
NMOS n-channel MOS transistor
E2CMOS

21. OPERATIONAL
CHARACTERISTICS
DC Supply Voltage
Noise Margin
Power Dissipation
Frequency Response
Fan Out