دوائر رقمية 2 عملي

אאJJ22FFEE

136136אא

א 136 א א

א J2FE

،،אא،אW

אא א א א א א אאאא،אאאאאאא

אאאאאאאאאאאWא

אאK אאאאאאא

א ،א אא א א אא א א ،א

א،אאאאאאאאאאאאאאאא

אא،אאאא،אK

אא?א J2FE???אאאאאאאאK

אאאאאאא،א،אאאא

אאאאאK א אאא WאK

אאאא

136 א א

א J2FE

אאאאא،KKK אא،אאאאאא

אאאאא،אאאאאKאאא

אאא،אאאK אאאאא

،אאאא،אאא،אאאא

אאא(Data Sheet)K ،אKKKKKK

אאאאאאOORR,, NNOOTT,, NNAANNDD && NNOORRAANNDD,,

אאJJ22FFEE

אא

א

AN

D, O

R, N

OT

, NA

ND

& N

OR

1

אא 136 א א

אאאAND, OR, NOT, NOR & NAND א J2FE

אא(Concept) ،אא(Truth Table)אאAND, OR,

NOT,NAND and NOR،אאאאאאאK

WאאAND HIGHאאANDאHIGH،

אF11EK

אF11EאאANDאאאK

אא(Procedure) אא(chip)74LS08א(Pins)

אאאANDKאאאאאW א14א +5voltsא7GNDK

אאאאאאא1,2אא3،אSW1, SW2אאא

אLOWאאאאHIGHא،(LED)אאF1 J2EK

אאאאאL1אאANDאF1 J1EK"0"א(LOW

output)،"1"א(HIGH output)K

אא 136 א א


אF12E74אLS08אK

א א L1=A BB=SW2A=SW1

00 10 01 1 1

אF1 J1EאאANDK

אANDאאאאאANDאאאאאfx = (AB).C or A.B.C ،F13EK

אא 136 א א


אF13EאאANDאK

אSW1, SW2, SW3אאANDאאאF1 J2Eאא،K

א א

L2=ABCL1=AB C=SW3B=SW2A=SW10 0 0 1 0 0 0 1 0 1 1 0 0 0 1 1 0 1 0 1 1 1 1 1

אF1 J2EאאANDאאK

WאאOR

HIGHאאORאHIGH،אF14EK

אא 136 א א


אF14EאאORאאאK

אא 136 א א



אאאORKאאאאW א14א +5voltsא7GNDK

אאאאאאא1,2אא3،אאSW1SW2,אאא


אאאאאL1אאORאF1 J3EK"0"א(LOW


אF15E74אLS32אK

א א L1=A+BB=SW2A=SW1

00 10 01 1 1

אF1 J3EאאORK

אא 136 א א


אORאאאאאאאORאאא fx = [(A+B)+C] or A+B+C ،F16EKאא

אF16EאאORאאאK

אSW1, SW2, SW3אאORאאאF1 J4Eאא،K

א א

L2=A+B+CL1=A+B C=SW3B=SW2A=SW10 0 0 1 0 0 0 1 0 1 1 0 0 0 1 1 0 1 0 1 1 1 1 1

אF1 J4EאאORאאאK

WאאNOT

אא 136 א א


אאאאאא،אא(opposite state)،אאNOTאFEאFאKE

F1 J7Eא(Truth Table)אNOTK

אא 136 א א


אF17EאאNOTאאאK


אאאNOTKאאאאאW א14א +5voltsא7GNDK

אאאאאא1אא2،א SW1 א LOWא، HIGH،אא L1

F1 J8EK

אאאאאL1אאNOTאF1 J5EK"0"א(LOW


אF18E74אLS04אK

א א L1=OutputSW1=Input

אא 136 א א


0 1

אF1 J5EאאNOTK

אWאאNAND אאNAND(inverted or negated)אANDKLOWא

ANDHIGH،HIGHLOWKאLOWאאHIGHKאANDאNOT-AND،

NANDKF1 J9EאאNANDאאאK

אF1 J9EאאNANDאאאK


אאאNANDKאאאאW א14א +5voltsא7GNDK

אאאאאאא12,אא3،אSW1SW2,אאא

אא 136 א א



אאאאאL1אאNANDאF1 J6EK"0"א(LOW


אF110E74אLS00אK

א א

C=L1B=SW2A=SW100 10 01 1 1

אF1 J6EאאNANDK

אNANDאANDאKאאאא،אNANDאNOT(Inverter)K

אאF1 J11Eא،SW3אLOWאHIGH،אאL2אאNANDא

אF1 J7EK

אא 136 א א


אF111E74אLS00אK

א א Output=L2Input=SW3

0 1

אF1 J7EאאNANDK

אNANDאאאאNANDאאאאאABCf x ،F112EK

אF112EאאNANDאK

אא 136 א א


אSW1, SW2, SW3 אאNANDאאF1 J8Eאא،K

א א

ABC3L L2=ABAB1L C=SW3B=SW2A=SW1 0 0 0 1 0 0 0 1 0 1 1 0 0 0 1 1 0 1 0 1 1 1 1 1

אF1 J8EאאNANDאK

WאאNOR

אאNOR(inverted or negated)אORKLOWאORHIGH،HIGHLOWKאLOWא

אHIGHKאORאNOT-OR،NORKF1 J13EאאNORאאאK

אא 136 א א


אF1 J13EאאNORאאאK


אאאNORKאאאאW א14א +5voltsא7GNDK

אאאאאאא23,אא1،אSW1,SW2אאאא

LOWאאאאHIGHא،(LED)אאF1 J14EK

אאאאאL1אאNORאF1 J9EK"0"א(LOW


אF114E74אLS02אK

אא 136 א א


א א C=L1B=SW2A=SW100 10 01 1 1

אF1 J9EאאNORK

אNORאORאKאאאא،אNORאNOT(Inverter)K

אאF1 J15Eא،SW3אLOWאHIGH،אאL2אאNORא

אF1 J10EK

אF115E74אLS02אK

א א

Output=L2Input=SW30 1

אF1 J10EאאNORK

אא 136 א א


אNORאאאאNORאאאאאCBAf x ،F116EK

אF116EאאNORאK

אSW1, SW2, SW3אאNORאאF1 J11Eאא،K

א א

CBA3L L2=A+BBA1L C=SW3B=SW2A=SW1 0 0 0 1 0 0 0 1 0

אא 136 א א


1 1 0 0 0 1 1 0 1 0 1 1 1 1 1

אF1 J11EאאNORאK

אאאאאאEExxcclluussiivvee--OORR ((XXOORR))

אאJJ22FFEE

אא

א

Exc

lusi

ve-O

R (

XO

R)

2

אא 136 א א

אאא(XOR) א J2FE א

אא(Concept) אExclusive-OR (XOR)א،אאHIGHא،אHIGHאא،HIGHLOWאLOWKא

XORאאאאBAK،אאאXORאאNANDאNORאאא

אXORKF2 J1EאאאאאXORK

אF2 J1EאאXORאאאK

אא(Procedure) (chip)א74: اآلتيـة لشرائحلكل من اLS00, 74LS02, 74LS04,74LS86 فـي

7א +5voltsא،14אالمختبــرGNDK WאאXORאאא74LS86

אאאF2 J2Eא،SW1SW2,אאF2 J1E،אאL1אF2 J1EK

אא 136 א א


אF22EאאXORאK

אא 136 א א


א א

BABA1L B=SW2A=SW100 10 01 1 1

אF2 J1EאאXORK

WאאXORאאNAND

אאאF2 J3Eא،SW1SW2,אאF2 J2E،אאL3אF2 J2EK

אאאF2 J2EאאF2 J1Eאא XOR.

אF2 J3EאאXORאאNANDK

א א

BABA3L B=SW2A=SW100 10

אא 136 א א


01 1 1

אF2 J2EאאF2 J3EK

WאאXORאאNOR

אאאF2 J4Eא، SW1,SW2אאF2 J3E،אאL2אF2 J3EK

אאאF2 J3EאאF2 J1Eאא XOR.

אF2 J4EאאXORאאNORK

א א

BABA2L B=SW2A=SW100 10 01 1 1

אא 136 א א


אF2 J3EאאF2 J4EK

אאאאאא

אאJJ22FFEE

א

א

א

3

אא 136 א א

אאא אJ2FE א

אא(Concept) א،א(Truth Table)אאא

(Half Adder)אאא(Full Adder)א،אא(Half Subtractor)אאא(Full Subtractor)K

אא(Procedure) (chip)א74: اآلتيــة لشــرائحلكــل مــن اLS08, 74LS86,74LS32,74LS04

7א +5voltsא،14אالمختبربــGNDK

Wאא(Half Adder)

אאאF3 J1Eא،SW1,SW2אאF3 J1E،אאL1,L2א

F3 J1EK

F3 J1EאאאK

א א CARRY=L2SUM=L1 B=SW2A=SW1

0 0 1 0 0 1

אא 136 א א

אאא אJ2FE א

1 1

F3 J1EאאאאK

אאאאא؟

Wאא(Full Adder)

אאאF3 J2E،אSW1,SW2,SW3אאF3 J2E،אאL1,L2א

F3 J2EK K

אא 136 א א

אאא אJ2FE א

F3 J2EאאאK

א א

L2=CARRYL1=SUM CARRY=SW3B=SW2 A=SW1

0 0 0 1 0 0 0 1 0 1 1 0 0 0 1 1 0 1 0 1 1 1 1 1

F3 J2EאאאאK

אאאאא؟

אא 136 א א

אאא אJ2FE א

Wאא(Half Subtractor)

אאאF3 J3Eא،SW1,SW2אאF3 J3E،אאL1,L2א

F3 J3EK

F3 J3EאאאK

א א L2=Borrow L1=DifferenceB=SW2A=SW1

0 0 1 0 0 1 1 1

F3 J3EאאאאK

אא 136 א א

אאא אJ2FE א

אאאאא؟

אWאא(Full Subtractor)

אאאF3 J4Eא،SW1,SW2,SW3אאF3 J4E،אאL1,L2א

F3 J4EK

F3 J4EאאאK

א א L2= BorrowL1= DifferenceC=SW3 B=SW2A=SW1

אא 136 א א

אאא אJ2FE א

0 0 0 1 0 0 0 1 0 1 1 0 0 0 1 1 0 1 0 1 1 1 1 1

F3 J4EאאאאK

אאאאאא

אאJJ22FFEE

א

א

א

4

אאא 136 א א

אאא אJ2FE א

אא(Concept) א،אאא(Decoder)،

אאא(Encoder)K

Wאא(Decoder) אא(Procedure)

(chip)א74: اآلتيــة لشــرائحلكــل مــن اLS0874LS04, المختبــرفــي،14אא +5voltsא7GNDK

אאאF4 J1Eא،SW1SW2,אאF4 J1E،אאאL1L4אא

F4 J1EK

F4 J1Eא2-to-4K

א א L4=3L3=2L2=1L1=0A=SW1B=SW20 0 1 0 0 1

אאא 136 א א

אאא אJ2FE א

1 1

אF4 J1EאאאK

Wאא(Encoder) אא(Procedure)

(chip)אא(OR)74 ورقمهــاLS32 المختبــرفــيא،14א +5 Voltsא7GNDK

אאאF4 J2Eא،SW3SW6אאF4 J2E،אאL1, L2אא

F4 J2EK

F4 J2Eא4-to-2K

א א L1=AL2=BSW3=0SW4=1SW5=2SW6=31 0 0 0 0 10 0

אאא 136 א א

אאא אJ2FE א

0 0 1 0 0 0 0 1

אF4 J2EאאאK

אאאאאא

אאJJ22FFEE

א

א

א

5

אא 136 א א

אאא א J2FE א

אא(Concept) א،אאא(Multiplexer)

אא(Demultiplexer)K

Wאא(Multiplexer) אא(Procedure)

(chip)א74: اآلتية لشرائحلكل من اLS0474LS08, 74LS32, المختبـرفـي،א14א+5voltsא7GNDK

אאאF5 J1Eא،SW1SW2,אאאאאאF5 J1E،א SW3SW6،

אאL1אאF5 J1EK

אF51Eאא(Multiplexer)K

SW1 (S1)

SW2 (S0)

SW3(D0)

SW4(D1)

SW5(D2)

SW6(D3)

L1

אא 136 א א

אאא א J2FE א

אא א L1 SW6(D3)SW5(D2)SW4(D1)SW3(D0)S0=SW2S1=SW10 0 0 1 0 0 0 0 1 0 1 0 0 1 0 0 0 1 1 0 0 0 1 1

אF5 J1EאאאK Wאא(Demultiplexer) אא(Procedure)

(chip)א74: اآلتيــة لشــرائحلكــل مــن اLS04, 74LS08 المختبــرفــي،14אא +5voltsא7GNDK

אאאF5 J2Eא،SW1,SW2אאאאאאF5 J2E،אSW3،

אאאL1L4אאF5 J2EK

SW1 (S1)

SW2 (S0)

D0(L1)

D1(L2)

D2(L3)

D3(L4)

SW3

א I

אא 136 א א

אאא א J2FE א

אF5 J2Eאא(Demultiplexer)K

א א

א

L4(D3)L3(D2)L2(D1)L1(D0)SW3S0=SW2S1=SW1 1 0 0 1 1 0 1 0 1 1 1 1

אF5 J2EאאאK

אא

אאJJ22FFEE

א

6

אא 136 א א

א אJ2FE א

אא(Concept) א،אאא(Comparator)א

(2-bits)אאK אא(Procedure)

(chip)א74: اآلتيــة لشــرائحلكــل مــن اLS08, 74LS86, 74LS04 المختبــرفــي،א14א +5voltsא7GNDK

אאאF6 J1Eא،SW1,SW2אאF7 J1E،אאא L1 L3אF7 J

1EK

F6 J1EאאאK

א א

Z A>B

Y A<B

X A=B

B A

0 0 1 0

X (A=B) A

B

Z (A>B)

Y (A<B)

אא 136 א א

א אJ2FE א

0 1 1 1

.دائرة المقارنجدول الحقيقة ل )1- 6(الجدول

אאSS--RR

אאJJ22FFEE

א

S-R

7

אא 136 א א

אS-R אJ2FE א

אא(Concept) אאא،א(basic)SRאSR

אא(Clocked SR Latch)،אאאא(Asynchronous Control Inputs)אא(Preset)א(Clear)K

אא(Procedure) (chip)א74: اآلتية لشرائحلكل من اLS00, 74LS02, 74LS08, 74LS32 في

7GNDKא +5voltsא،14אالمختبر WאSRאאאאNOR

אאאF7 J1Eא،SW1SW2,אאF7 J1E،אאL1, L2F7 J1EK

אF7 J1EאSRאאNORK

א א =L2QQ=L1 S=SW1R=SW21 0 0 0 0 1 0 0 1 1

אא 136 א א

אS-R אJ2FE א

אF7 J1EאאאSRאאאNORK

WאSRאאאאNAND

אאאF7 J2Eא،SW1,SW2אאF7 J2E،אאL1, L2F7 J2EK

אF7 J2EאSRאאNANDK

אאF7 J2EאF7 J3EK

אא 136 א א

אS-R אJ2FE א

אF7 J3EאאF7 J2EK

א א =L2QQ=L1 =SW1 R=SW2S1 0 1 1 0 1 1 1 0 0

אF7 J2EאאאSRאאאNANDK

WאSRאא(ENABLE)

אאאF7 J4Eא،SW1SW2,SW3,אאF7 J3E،אאL1, L2F7 J3EK

אF7 J4EאSRאאNANDאK

אא 136 א א

אS-R אJ2FE א

אאF7 J4EאF7 J5EK

אF7 J5EאאאF7 J4EK

א א =L2QQ=L1 ENABLE=SW1R=SW2 S=SW3 0 0 0

אא 136 א א

אS-R אJ2FE א

1 0 0 0 0 0 0 1 0 1 1 0 0 1 0 0 0 1 1 0 1 0 0 1

אF7 J3EאאאSRאENABLEK

אWאSRאאא(Preset)א(Clear)

אאאאאא?0?(Reset)،?1?(Set)،אאS,Rא،

(Enable)אאאאא،(control inputs)،אאאK

אאאF7 J6E،אאF7 J7E،אSW1SW5אאF7 J4E،

אאL1, L2F7 J4EK

אא 136 א א

אS-R אJ2FE א

المدخالت الخرج=L2Q Q=L1 Enable=SW1R=SW2S=SW3Preset=SW4 Clear=SW5

0 0 0 0 0

1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 1 0 0 0 0 1 0 0 0 0 0 1 0 0 1 0 1 0 0 0 0 1 0 0 0 0 0 1 0 1 1 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 1 0 0 0 0 1 0 0 0 0 0

אF7 J4EאאאSRאאאK

אא 136 א א

אS-R אJ2FE א

אאאאאאDD

אאJJ22FFEE

א

א

א

D

8

אא 136 א א

אD א J2FE א

אא(Concept) אאא،אאD،

אאאאDK אא(Procedure)

(chip)א74: اآلتية لشرائحلكل من اLS0274LS04,74LS08,74LS75, في7GNDKא +5voltsא،14אالمختبر

WאאDאאאNORAND,NOT,

אאאF8 J1Eא،SW1,SW2אאF8 J1E،אאL1, L2F8 J1EK

אF8 J1EאDאאאNORAND,NOT,K

א א

=L2QQ=L1 Enable=SW1D=SW2 00 10 00

אא 136 א א

אD א J2FE א

0 1 1 1 0 1

אF8 J1EאאאDF8 J1EK

WאD

אאאF8 J2E،אSW2אHIGHKאSW1אLOWאHIGHאאא،L1؟

אKאאאאאא(Enable)אHIGHK

אF8 J2EאDK

אSW2אLOWKאSW1אLOWאHIGH،אאאL1؟

אא 136 א א

אD א J2FE א

אKאאאאאא(Enable)אLOWK

WאאD

א(chip)74 رقـمLS10 المختبـرفـيא،14א+5voltsא7GNDK

אאאF8 J3E،אאF8 J3EאF8 J4EK

אSW1,SW2אF8 J2EKאSW4,SW5אHIGH،אאL1K

א،אLH אSW1אHIGHאLOW،HL אSW1אLOWאHIGHK

א א Q=L1 CLK=SW1D=SW2 LH 0 HL 0 LH 1 HL 1

אF8 J2EאאאאDF8 J3EK

אWאאD

אא 136 א א

אD א J2FE א

א(chip)74 رقـــمLS74 ـــرفـــي א،14אالمختب+5voltsא7GNDK

אאאF8 J5Eא،SW1אLOWאHIGHKאCLK1Hz،אאא

אאאK

אאJJKK

אאJJ22FFEE

א

JK

9

אא 136 א א

אJK א J2FE א

אא(Concept) ،אאאאJK،

אJKאאTK אא(Procedure)

אא(chip)74LS76א(Pins)אאאJKא،5א +5voltsא

13GNDK אאאF9 J1Eא،SW2SW3,אא

F9 J1E،אאL1F9 J1EK

אF9 J1EאאJKK

א א Q=L1 CLK=SW1J=SW2 K=SW3 0 0 1 0 0 1

אא 136 א א

אJK א J2FE א

1 1

אF9 J1EאאאJKK

אSW2SW3,אHIGHKאSW1אLOWאHIGHאLOWאאא،אL1؟

א(Toggle)אSW1HIGHLOWK

אJHIGHאKHIGHאKאאאאאאT

אF9 J2EK

אF9 J2EאאאTK

אאאא((SShhiifftt RReeggiisstteerr))

אאJJ22FFEE

א

א

(Shi

ft R

egis

ter)

10

אא 136 א א

אא(Shift Register) א J2FE א

אא(Concept) א،אאא Jאא Jא

(Serial-In, Parallel-Out Shift Register)،אאאא(Ring Counter)K

אא(Procedure)

Wאאא Jאא Jא

א(2-chips)74LS74א(Pins)אאאאDא،145+ אvoltsא7GNDK

אאאF10 J1Eא،SW1SW2,SW3,אLOWKאSW1אLOWאא،

(clear)אא(Q's = 0)א،אF10 J1KE

אF10 J1Eאאא Jאא JאK

אא 136 א א


אSW1SW2,אHIGHKאSW1אHIGH،אאא(removes the clear input)KאSW2

אHIGH،HIGHאאא،F10 J1KE

אSW3אLOWאHIGHאLOWKאSW3אאאא(clock inputs)

(positive edge)אאאאא،א(HIGH)אL1אא،F10 J1KE

אאא،אא(second

HIGH)KאאאL1, L2אHIGHא،אF10 J1KE

א

א

אאא

L4 L3 L2 L1SW1 SW2 SW3

0 0 0 0 0 0 L

1 1 LHL 1 1 LHL

1 0 LHL

1 0 LHL

F10 J1EאאאK

אSW2אLOWאאאא،LOWK

אא 136 א א


אSW3אLOWאHIGHאLOW،אאאאא،

אF10 J1KE

Wאאאא

אאאF10 J2Eא،SW1אLOWKאSW1אLOWאא،(0001)א،

אאW

L1 = LOW, L2 = LOW, L3 = LOW, L4 = HIGHKאאאHIGHK

אSW1אHIGH،אSW1אHIGH،אאאאא(releases the clear

and preset inputs)KאאF10 J2KE

אHIGHאאא(1Hz

clock)KאאF10 J2KE

אאאאאאאאאא

אאאK

אא 136 א א


אF10 J2Eאאאא(Ring Counter)K

אא

SW1 אא

L1 L2 L3 L4

0 0 0 0 0 1 1 1 2 1 3 1 4 1

F10 J2EאאאאאK

אאאאאא (Counters)

אאJJ22FFEE

אא

א

(Cou

nter

s)

11

אא 136 א 167 א אאא(Counters) א J2FE אFE

אא(Concept) ،אאאאאאFאאEאא

אאאאא،אאא JאK אא(Procedure)

Wאאאאאא

(2-chips)74LS76א(Pins)אאאJKאאאא،،

5אא +5voltsא13GNDK אאאF11 J1Eא،SW1אHIGH

א(initializes clock setting)KאSW2אLOWאHIGHאא،(clear)אא

(Q's = 0)K

אF11 J1EאאאאאאK

אSW1אLOWאHIGHאLOWK

אאא،L1-L4אF11 J1EK


א א

العدد العشري المكافئ

L1 = 1 L2 = 2 L3 = 4 L4 = 8 رقم نبضةامنالتز

0 0 0 0 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32


אF11 J1EאאאאאK


Wאאאאאא

אאאאא(2-chips)74LS76،5אא +5voltsא13GNDK

אאאF11 J2Eא،SW1אHIGHא(initializes clock setting)KאSW2אLOWא

HIGHאא،(preset)אאא(Q's = 1)K

אF11 J2EאאאאאאK

אSW1אLOWאHIGHאLOWK

אאא،L1-L4אF11 J2EK


א א العدد العشري

المكافئL1 = 1 L2 = 2 L3 = 4 L4 = 8 رقم نبضة

التزامن15 1 1 1 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27


28 29 30 31 32

אF11 J2EאאאאאK

Wאאאא Jאאא

אאאאאא(2-chips)74LS76אא،NAND74LS00K

אאאF11 J3Eא،SW1אHIGHFאאKEאSW2אLOWאHIGHא،

א(clear)אא(Q's = 0)K


אF11 J3Eאאאא JאאאK

אאאאאאK

אSW1אLOWFאאKE

אאאאאאK

((AADDCC))

אאJJ22FFEE

(A

DC

)

12

אא 136 א א

(ADC) א J2FE א

אא(Concept) ،אא(ADC)אא(flash)אאא(parallel A/D converter)K

אא(Procedure) א(chip)74LS148א(Pins)

אא(priority encoder)א(8-

line to 3-line)،(pins)אF12 J1E،א16א+5voltsא8GNDKאא

אא(active low)KאEIא(Enable

Input)אא،A0-A7אא،אאY0-Y2אאKאאאF12 J1KE

F12 J1Eא74LS148K

אאאF12 J2E،א(EI)אLOWFא5KEVinK

1

2

3

4

5

6

7 10

11

12

GND

VCC

A6

13

14

A5

A7

EO

8 9

15

16

Y2

Y1

Y0

A0

A3

EI

A4

GS

A2

A1

8-to-3Priority encoder

אא 136 א א

(ADC) א J2FE א

אאVin1vאא،"0"،אא(A0-A7)אF12 J2E،אאא

L1-L3אF12 J2EK

אאVin1v،אא(A0-A7)אF12 J2E،אאאL1-L3

אF12 J2EK

א א

Y0 Y1 Y2 A7 A6 A5 A4 A3 A2 A1 A0 EI H H H x x x x x x x x H H H H H H H H H H H H L H H H H H H H H H H L L L H H H H H H H H L x L H L H H H H H H L x x L L L H H H H H L x x x L H H L H H H L x x x x L L H L H H L x x x x x L H L L H L x x x x x x L L L L L x x x x x x x L

F12 J1Eא74LS148K

אאVin2vא،

א(A0-A7)אF12 J2E،אאאL1-L3אF12 J2EK

א7vאא،(A0-A7)אF12 J2E،אאאL1-L3

אF12 J2EK

אא 136 א א

(ADC) א J2FE א

א אא الدخل

Y0 Y1 Y2 A7 A6 A5 A4 A3 A2 A1 A0 Vin

… … … … … … … … … … … 0.5v … … … … … … … … … … … 1.5v … … … … … … … … … … … 2.5v … … … … … … … … … … … 3.5v … … … … … … … … … … … 4.5v … … … … … … … … … … … 5.5v … … … … … … … … … … … 6.5v … … … … … … … … … … … 7.5v

F12 J2EאאK

+

+

+

+

+

+

+

1k

1k

1k

1k

1k

3k

1v

2v

3v

4v

5v

6v

7v

vref =10vVin

8

16

A0

A1

A2

A3

A4

A5

A6

A7

10

11

12

13

1

2

3

4

y0

y1

y2

GND

+Vcc

9

7

6

8-to-3 Priority encoder

LSB

MSB

(L1)

(L2)

(L3)

אא 136 א א

(ADC) א J2FE א

אF12 J2Eא3-bitK

((DDAACC))

אאJJ22FFEE

(DA

C)

13

אא 136 א א

(DAC) א J2FE א

אא(Concept) ،אא،אאאאאאאא

אאאK אא(Procedure)

Wאאאאאא

(2-chips)74LS76،אאאאאא74LS04אאאא،NANDאא

74LS10K אאא13 J1א،SW1אHIGH

א(initializes clock setting)KאSW2אLOWאHIGHאא،(clear)אא

(Q's = 0)K

א13 J1אאאאאאK אSW1אLOWאHIGHאLOWK

אאא،L1-L4א13 J1K

אא 136 א א

(DAC) א J2FE א

א13 J1אאאאאK

אאאאאאK

Wאאאאאא

אאאאא(2-chips)74LS76،אאא74LS04אאאא،NAND

א74LS10K אאא13 J2א،SW1אHIGH

א(initializes clock setting)KאSW2אLOWאHIGHאא،(preset)א

אא(Q's = 1)K

אא 136 א א

(DAC) א J2FE א

א13 J2אאאאאאK

אSW1אLOWאHIGHאLOWKאאא،L1-L4א13 J2K

א13 J2אאאאאK

אאאאאאK

אא 136 א א

א J2FE א

(References) אא [1] Nigel P. Cook, Introductory Digital Electronics. New Jersey:

Prentice-Hall, Inc. 1998. [2] M. Morris Mano, Digital Logic and Computer Design, Prentice- Hall, Inc.

of India - 2000. [3] Thomas L. Floyd, Digital Fundamentals, Seventh Edition, Prentice-Hall,

Inc. 2000. [4] M. Morris Mano, Digital Design, Prentice- Hall, Inc. Aug 2001.

א 136 א א

א J2FE א

א

א

אאWאאא AND, OR, NOT,NAND & NOR ............................................... 1

XOR ............................................................................ .....................13אאאWאא

......................................................................................................16אאאWאא

................................................................................................... 20אאWאאא

........................................................................... 22אאאWאא

24...................................... .............................................................................אW אא

S-RK............................................................................................................. 25אWאא

D.............................................................................................................. 30אWאא

JK................................................................................................................ 33אWאא

........................................................................................................... 35אאWאא

38............................................................................................................ אאאWאא

אאW ........................................................................................ 44

W ........................................................................................ 46אא

אא ............................................................................................................................................... 49

دوائر رقمية 2 عملي

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