Question

1. Verify the operation of the Adder 7483, to do this implement a circuit that performs the sum of two numbers A and B each of two bits according to the pin connection in the annex. View outputs with a 7-segment display.

B4 14 C4 CO GND B1 A1 C1 16 15 14 13 12 11 10 9 24 C4 CO B1 A 1 B4 Σ1 A4 A2 13 A3 83 12 B2 ND 3 5 6 7 8 A4 13 A3 B3 VCC 12 B2 A2

Answer 1

The circuit is wired in NI MULTISIM as below

X 6 X Design 1 - Multisim - [Design1 *] Eile Edit View Place MCU Simulate Transfer Tools Reports Options Window Help HER % Een 7. WT 6 --- In-Use List --- + m + the + B 0 OF B MISC Y s > Interactive @@@ Design Toolbox F B1 B2 A1 A2 Te Design1 Design1 VCC 5.0V o # # Key = Space Key = Space Key = Space Key = Space 도 05 B WE IFE ABCDEFG 9 man U1 74L S83N unu 10 04 7 D HAG 11 10 6 #TR A ON B ОВ. C OC D OD OE LT OF RBI OG BI/RBO M 15 14 3 5 4 VCC 5.0V 74LS47N Hierarchy Visibility Project View Design1 * Results Nets Components Copper layers Simulation Tran: 0.020 s For Help, press F1 Type here to search E 22:39 31-07-2020 =1 la ) ENG

B1 B2 A1 A2 VCC 5.0V O Key = Space Key = Space Key = Space Key = Space 05 ΕΕΕΕ ABCDEFG Hem 8 U1 74LS83N C4 IM Մ Մ Մ Մ 04 A B c D ОА OB OC OD OE OF OG LT RBI BI/RBO VCC 5.0V 74LS47N Design1*

Since the numbers are two bit, we will connect A3, A4, B3 and B4 to ground. The input carry bit is also grounded. The output is given to a 7447 BCD to seven segment decoder and the output is connected to the seven segment display

Case - I : A2 = 0, A1 = 0, B2 = 0, B1 = 0

So A = 0, B = 0. Sum = 0

B1 B2 A1 A2 VCC 5.0V O Key = Space Key = Space Key = Space Key = Space 05 ΕΕΕΕ ABCDEFG Hem 8 U1 74LS83N C4 IM Մ Մ Մ Մ 04 A B c D ОА OB OC OD OE OF OG LT RBI BI/RBO VCC 5.0V 74LS47N Design1*

Case - II : A2 = 0, A1 = 0, B2 = 0, B1 = 1

So A = 0, B = 1. Sum = 1

B1 B2 A1 A2 VCC 5.0V Key = Space Key = Space Key = Space Key = Space 05 CA ΕΕΕΕ ABCDEFG Hem 8 U1 74LS83N C4 IM Մ Մ Մ Մ 04 A B c D ОА OB OC OD OE OF OG LT RBI BI/RBO VCC 5.0V 74LS47N Design1*

Case - III : A2 = 0, A1 = 0, B2 = 1, B1 = 0  

So A = 0, B = 2. Sum = 2

B1 B2 A1 A2 VCC 5.0V O Key = Space Key = Space Key = Space Key = Space 05 ΕΕΕΕ ABCDEFG Hem 8 U1 74LS83N C4 IM Մ Մ Մ Մ 04 A B c D ОА OB OC OD OE OF OG LT RBI BI/RBO VCC 5.0V 74LS47N Design1*

Case - IV : A2 = 0, A1 = 0, B2 = 1, B1 = 1

So A = 0, B = 3. Sum = 3

B1 B2 A1 A2 VCC 5.0V Key = Space Key = Space Key = Space Key = Space 05 ΕΕΕΕ ABCDEFG Hem 8 U1 74LS83N C4 IM Մ Մ Մ Մ 04 A B c D ОА OB OC OD OE OF OG LT RBI BI/RBO VCC 5.0V 74LS47N Design1*

Case - V : A2 = 0, A1 = 1, B2 = 0, B1 = 0

So A = 1, B = 0. Sum = 1

B1 B2 A1 A2 VCC 5.0V O Key = Space Key = Space EK Key = Space Key = Space 05 CA ΕΕΕΕ ABCDEFG Hem 8 U1 74LS83N C4 IM Մ Մ Մ Մ 04 A B c D ОА OB OC OD OE OF OG LT RBI BI/RBO VCC 5.0V 74LS47N Design1*

Case - VI : A2 = 0, A1 = 1, B2 = 0, B1 = 1

So A = 1, B = 1. Sum = 2

B1 B2 A1 A2 VCC 5.0V Key = Space Key = Space EK Key = Space Key = Space 05 ΕΕΕΕ ABCDEFG Hem 8 U1 74LS83N C4 IM Մ Մ Մ Մ 04 A B c D ОА OB OC OD OE OF OG LT RBI BI/RBO VCC 5.0V 74LS47N Design1*

Case - VII : A2 = 0, A1 = 1, B2 = 1, B1 = 0

So A = 1, B = 2. Sum = 3

B1 B2 A1 A2 VCC O 5.0V Key = Space Key = Space EK Key = Space Key = Space 05 ΕΕΕΕ ABCDEFG Hem 8 U1 74LS83N C4 IM Մ Մ Մ Մ 04 A B c D ОА OB OC OD OE OF OG LT RBI BI/RBO VCC 5.0V 74LS47N Design1*

Case - VIII : A2 = 0, A1 = 1, B2 = 1, B1 = 1

So A = 1, B = 3. Sum = 4

B1 B2 A1 A2 VCC 5.0V Key = Space Key = Space EK Key = Space Key = Space 05 ΕΕΕΕ ABCDEFG Hem 8 U1 74LS83N C4 IM Մ Մ Մ Մ 04 A B c D ОА OB OC OD OE OF OG LT RBI BI/RBO VCC 5.0V 74LS47N Design1*

Case - IX : A2 = 1, A1 = 0, B2 = 0, B1 = 0

So A = 2, B = 0. Sum = 2

B1 B2 A1 A2 VCC 5.0V O Key = Space Key = Space Key = Space Key = Space 05 ΕΕΕΕ ABCDEFG Hem 8 U1 74LS83N C4 IM Մ Մ Մ Մ 04 A B c D ОА OB OC OD OE OF OG LT RBI BI/RBO VCC 5.0V 74LS47N Design1*

Case - X : A2 = 1, A1 = 0, B2 = 0, B1 = 1

So A = 2, B = 1. Sum = 3

B1 B2 A1 A2 VCC 5.0V Key = Space Key = Space Key = Space Key = Space 05 ΕΕΕΕ ABCDEFG Hem 8 U1 74LS83N C4 IM Մ Մ Մ Մ 04 A B c D ОА OB OC OD OE OF OG LT RBI BI/RBO VCC 5.0V 74LS47N Design1*

Case - XI : A2 = 1, A1 = 0, B2 = 1, B1 = 0

So A = 2, B = 2. Sum = 4

B1 B2 A1 A2 VCC 5.0V Key = Space Key = Space Key = Space Key Space 05 ΕΕΕΕ ABCDEFG Hem 8 U1 74LS83N C4 IM Մ Մ Մ Մ 04 A B c D ОА OB OC OD OE OF OG LT RBI BI/RBO VCC 5.0V 74LS47N Design1*

Case - XII : A2 = 1, A1 = 0, B2 = 1, B1 = 1

So A = 2, B = 3. Sum = 5

B1 B2 A1 A2 VCC 5.0V Key = Space Key = Space Key = Space Key = Space 05 ΕΕΕΕ A B C D E F G Hem 8 U1 74LS83N C4 IM Մ Մ Մ Մ 04 A B c D ОА OB OC OD OE OF OG LT RBI BI/RBO VCC 5.0V 74LS47N Design1*

Case - XIII : A2 = 1, A1 = 1, B2 = 0, B1 = 0

So A = 3, B = 0. Sum = 3

B1 B2 A1 A2 VCC O 5.0V Key = Space Key = Space EK Key = Space Key Space 05 ΕΕΕΕ ABCDEFG Hem 8 U1 74LS83N C4 IM Մ Մ Մ Մ 04 A B c D ОА OB OC OD OE OF OG LT RBI BI/RBO VCC 5.0V 74LS47N Design1*

Case - XIV : A2 = 1, A1 = 1, B2 = 0, B1 = 1

So A = 3, B = 1. Sum = 4

B1 B2 A1 A2 VCC 5.0V Key = Space Key = Space EK Key = Space Key = Space 05 ΕΕΕΕ ABCDEFG Hem 8 U1 74LS83N C4 IM Մ Մ Մ Մ 04 A B c D ОА OB OC OD OE OF OG LT RBI BI/RBO VCC 5.0V 74LS47N Design1*

Case - XV: A2 = 1, A1 = 1, B2 = 1, B1 = 0

So A = 3, B = 2. Sum = 5

B1 B2 A1 A2 VCC O 5.0V Key = Space Key = Space EK Key = Space Key = Space 05 ΕΕΕΕ A B C D E F G Hem 8 U1 74LS83N C4 IM Մ Մ Մ Մ 04 A B c D ОА OB OC OD OE OF OG LT RBI BI/RBO VCC 5.0V 74LS47N Design1*

Case - XVI: A2 = 1, A1 = 1, B2 = 1, B1 = 1

So A = 3, B = 3. Sum = 6

B1 B2 A1 A2 VCC 5.0V Key = Space Key = Space EK Key = Space Key = Space 05 ΕΕΕΕ A B C D E F G Hem 8 U1 74LS83N C4 IM Մ Մ Մ Մ 04 A B c D ОА OB OC OD OE OF OG LT RBI BI/RBO VCC 5.0V 74LS47N Design1*

We can write the truth table as below

A2 A1 B2 B1 Sum 0 0 0 0 0 0 0 0 1 1 0 0 1 0 2 0 0 1 1 3 0 1 0 0 1 0 1 0 1 2 0 1 1 0 3 0 1 1 1 4 1 0 0 0 2 1 0 0 1 3 1 0 1 0 4 1 0 1 1 5 1 1 0 0 3 1 0 1 4 1 1 0 5 1 1 1 1 1 6