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Διάλεξη 11 Πολυσύνθετες πύλες NMOS και CMOS
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### Transcript of NMOS και CMOS - apel.ee.upatras.gr”ιάλεξη 11... · Σε αντίθεση με τη...

• 11

NMOS

CMOS

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NMOS CMOS CMOS

2

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3

NMOS

CMOS

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MOS NAND NOR

CMOS:

( ) MOS ( ). Pass Transistor Logic

4

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NMOS

NMOS

5

NMOS

CMOS

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NMOS

NMOS

NMOS :

6

CMOS,

PMOS,

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NMOS

NMOS

Y : BC ( C) BD (B D):

7

( )

Y A BC BD

Y A BC BD

Y A B C D

= + +

= + +

= + +

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NMOS

NMOS

:

:

: VOL W/L=2.06/1MB, MC, MD: (MB MC MD) W/L=4.12/1L:

8

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1

1

:

1 :

= CDB,

W/L=6.18/1 : Ron Ron S :

(W/L)A=3.09/19

( )

Y AB CDB

Y AB CDB

Y A CD B

= +

= +

= +

,6.18 2.06

on on on on on on

A B S A

R R R R R RW W W WL L L L

+ = + =

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1

1

2 : : B A CD

(W/L)=2(2.06/1)=4.12/1(W/L)+CD=2(2.06/1)=4.12/1

:(W/L)=4.12/1(W/L)C=8.24/1(W/L)D=8.24/1

10

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F 1 : 21.6F2

2 : 24.7F2 14% !!

1

1

11

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CDB: 3 W/L=3(2.06/1)=6.18/1ADE: CE: (W/L)= (W/L)CE =3.09/1>2.06/1

VOL

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CMOS

CMOS

13

NMOS

CMOS

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CMOS

CMOS

:

NMOS PMOS

14

Y A BC BD

Y A BC BD

= + +

= + +

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PMOS

1

PMOS

1

NMOS : 0 , 2 NMOS

15

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PMOS

1

PMOS

1

( 4 5) : , VDD ( 2 3) NMOS , PMOS ( ). PMOS NMOS ( NMOS) NMOS: PMOS PMOS

16

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PMOS

1

PMOS

1

17

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PMOS

1

PMOS

1

PMOS PMOS

18

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PMOS

1

PMOS

1

2 3 PMOS ,

19

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PMOS

PMOS

NMOSNMOS worst case: MOS , , C D :

PMOSPMOS worst case: MOS , , C D B:

20

7.5,15 5 11 1

on on on

B

B

R R R WW LL

+ = =

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PMOS

PMOS

21

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PMOS

2

PMOS

2

PMOS NMOS /

NMOS : BCD PMOS : BCD NMOS B C D PMOS: C D

22

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:

NMOS PMOS

23

Y AB CE CDB ADE= + + +

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,

24

PMOS

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CMOS CMOS

25

NMOS

CMOS

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CMOS CMOS

:

A=0 NMOS PMOS off

=1 Ron MOS

(c)

26

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Ron

CMOS

Ron

CMOS

27

Ron

(VTON

=0.75V, VTOP

=-0.75V, =0.5V0.5, 2F

=0.6V, Kp

=10/V2, Kn

=25/V2

)

onp onnon EQ

onp onn

R RR R

R R= =

+

Ron

W/L

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Pass Transistor Logic (PTL)Pass Transistor Logic (PTL)

Switch Network NMOS ( NMOS ), CMOS (NMOS PMOS )

28

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AND AND

29

B

B

A

F = AB

0

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XOR XOR

30

F AB BA= +

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MultiplexerMultiplexer

31

1 2F In S In S= +

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Master-Slave D Flip-FlopMaster-Slave D Flip-Flop

CMOS Master-Slave D Flip-Flop

32

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33

NMOS

CMOS

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1

(

)

1

(

)

34

. VOL VOH . (: VOL, MN MP , , .)

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2

(

)

2

(

)

35

; W/L , ;

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3

(

)

3

(

)

36

; W/L , 2;

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4

(

)

4

(

)

2.

37

( )Y A B C D E = + +

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5

5

38

; transistorMOS. transistorNMOS transistor PMOS, CMOS.

AB

CD

OUT

VDD

E

F

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5

5

39

: Y=((A*B)+(C*D)+(E*F)) (W/L)N 2. 22=4. (W/L)P 5. 53=15.

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6

6

40

, CMOS , 1.25 pF;

2/1

4/1

4/1 4/1

15/1

15/1

15/1

7.5/1

ABCD

OUT

VDD

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6

6

41

(W/L)N 2 (W/L)P 5 8.14 (, Richard C. Jaeger, .445) :

ns

nsns

053.82

053.8,053.8

PLHPHLP

PLH

PHL

=+

=

==

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7

7

42

; transistorPMOS. transistor NMOS transistor PMOS, CMOS.

AB

CD

OUT

VDD

EF

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7

7

43

: Y=NOT((A+B)*(C+D)*(E+F)) (W/L)N 2. 23=6. (W/L)P 5. 52=10.

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8

8

44

CMOS

X = (A+B)(C+D)

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8

8

45

ABCD

C

A B

X = (A+B)(C+D)

B

A

D

C

D

X VDD

X

GND

AB

C

PUN

PDN

D

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E

II

2008

E

II

2008

46

,

&

& ,

NMOS CMOS NMOS NMOS NMOS NMOS 1 1 1 CMOS CMOS PMOS 1 PMOS 1 PMOS 1 PMOS 1 PMOS 1 PMOS PMOS PMOS 2 CMOS CMOS Ron CMOS Pass Transistor Logic (PTL)AND XOR MultiplexerMaster-Slave D Flip-Flop 1 ( ) 2 ( ) 3 ( ) 4 ( ) 5 5 6 6 7 7 8 8 E II 2008