Digital lab report experiment 1, Lab Reports of Digital Systems Design

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ENCS

DIGITAL ELECTRONICS AND COMPUTER ORGANIZATION LABORATORY

Name: Sara Totah

Student ID: 1181779

Instructor: Khader Mohammed

T.A: Enas Jawabreh

Date: 22/2/

NOR Gate Circuit:

1. NOR gate used as NOT gate:

U NOR  When SW1 = 0, F1 = 1  When SW1 = 1, F1 = 0  Does the circuit act as a NOT gate? Yes it does  When SW0 = 0, F1 = 1  When SW0 = 1, F1 = 0

2. NOR gate used as Buffer:

U

NOR 0 0

U

NOR  When SW0 = 0, F3 = 0  When SW0 = 1, F3 = 1  Does the circuit act as a buffer? Yes

3. NOR gate used as OR gate:

0 0

U

NOR 0

U

NOR SW1 (B) SW0(A) F 0 0 0 0 1 1 1 0 1 1 1 1

3. OR gate constructed with NAND gates: U NAND U NAND 1 0 1 U NAND SW1 (B) SW0(A) F 0 0 0 0 1 1 1 0 1 1 1 1

XOR Gate Circuit:

1. XOR gate using NAND gates:

U NAND U NAND

U NAND U NAND

INPUT OUTPUT

D A F1 F2 F3 F

2. XOR gate using Basic gates: U INVERTER U INVERTER U AND U AND 0 0 0 U OR

INPUT OUTPUT

SW2(B) SW1(A) F1 F2 F

3. AOI circuit: U NAND U NAND U NAND U INVERTER 1 0 0 0 1 U AND U AND U OR U INVERTER 1 1 0 0 0 When B X B1 is set to 0 A1 A F3 F 0 0 0 1 0 1 0 1 1 0 0 1 1 1 1 0  Does F3 act as an AND gate between A and A1? Yes. When A XA1 is set to 0 B1 B F3 F 0 0 0 1 0 1 0 1 1 0 0 1 1 1 1 0  When A×A1 is “0”, does F3 act as an AND gate between B and B1? Yes.  Does F3 equal to A×A1+B×B1? Yes.

Post-Lab: