The document discusses implementing a Boolean function using NOR gates. It introduces that NOR functions are the dual of NAND functions, so NOR logic follows the same procedures and rules as NAND logic but with the inputs and outputs reversed. The Boolean function F = (A+B)(C+D)E is used as an example to show how to simplify it into a product of sums form and then implement it using NOR gates in a block diagram by connecting the gates such that the output of each term is fed into a NOR gate along with the other terms and the final output.

1. GREEN UNIVERSITY OF
BANGLADESH
Department: EEE (Eve)
Prepared For:
Chayan Mondal
Lecturer, GUB
Prepared By:
Shahida Akter
ID# 143010003
Course Title: Digital Electronics

2. Boolean Function
Implementation using
block diagram method
(NOR Implementation)

3. Introduction
The NOR function is the dual of the NAND
function. For this reason, all procedures and rules
for NOR logic are the dual of the corresponding
procedures and rules developed for NAND logic.
The implementation of a Boolean function with
NOR gates requires that the function be simplified
in Product Of Sum (POS) form.

4. NOR Implementation
using Block Diagram

5. F = (A+B)(C+D)E
E
A
B
(A+B)
C
D
(C+D)
(A+B)(C+D)E

6. F = (A+B)(C+D)E
E
A
B
(A+B)
C
D
(C+D)
A
B
(A+B)
C
D
(C+D)
E E
F = ((A+B) + (C+D) + E)
= (A+B) (C+D) E