Электротехника и электроника
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10.2 — ( ):— « »; — « »
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10.1 |
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, «0» (false) «1» (true) -
. -
«0», — «1». ,
«0» , «1» .
.
) , 155.
«2 » 155 ) «2 » ( 155 I), -
10.2, .
-
, . -
121
F
1, 2, 3, … .
1,
2, 3 F.
1 2, . F = 1
1 = 2 = 1 3 = 0.
-
. , ,
«2 » «2 », .
1, 2, 3
.
( ) 1 2, «2 -
». 1 = 2 = 1.
, -
F = 1 , .
.
«2 » ( 10.3).
10.3 —
. -
, -
. :
122
FX1 * X 2 * X 3 .
, ,
, X X . ,
» « ». ,
:
X1 * X 2 X1 X 2 X1 X 2 X1 * X 2
, -
1 2 ( -
), «2 », . -
, 1 2 ( , ).
, 1 2
), -
«2 », . , 1 2.
, -
:
F X1 * X 2 * X 3 X1 * X 2 X 3 F1 * X 3 F1 X 3 ,
F1 X1 X 2 — .
, , ,
«2 », F1 X 3 , ,
«2 », F1 X1 * X 2 .
, -
( , , ), -
.
, 155 , -
10.4. -
. :
123
,
-
. S ,
, — , -
. , -
— = 0101 (
5) = 1001 (9). 0 = 1 0 = 1,
1 + 1 = 10 ( 2). -
S0 =0, = 1. 1 = 0, 1 = 0,
= 1. S1 = 1 = 0, . -
. 2 = 1, 2 = 0
= 0. S2 = 1, = 0 ( . 10.2).
10.3 —
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10.2 |
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0 1 0 1 |
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1 0 0 1 |
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A+B |
1 1 1 0 |
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.
124
1. «2 », 1 2 -
-
1… 8. -
F L1…ML5. -
( 10.3).
2. «2 » .
10.3.
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10.3 |
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F X1 * X 2 |
F |
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X1 X 2 |
X1 * X 2 |
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3. -
( 10.3),
F = 1 1 = 2 = 1,
3 = 0. , 1, 2, 3 -
, F.
10.4.
10.4
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4. -
, 155 3,
0… 3 0… 3 SA1…SA8, CR
125
« » (). S0, S1, S2, S3
L1… L5.
( . 10.5) ( -
, 15) .
10.5
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10.6. |
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10.6 |
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1..
2., .
3..
4..
4. .
126
1., . / . , . . — :
, 1983.— 427 .
2., . / . -
. — : , 1980. — 248 .
3., . / . . — :
, 1998. — 429 .
4.. / . [ .]. — :
, 1986.
5. / . , . , . . — -
: , 1987.
6./ . . . — : -
, 1977. 328 .
7., . . / . ,
. ; . . . — : , 1990.
304.
8., . . /
. ; . . . — : , 1989. —
335.
9., . , /
. . — : , 1987.
10. , . / . . — : -
, 1989.
11. ( ) « -
» : . 3. /
. [ .]. — : , 1988.
127
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( ) |
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128
2
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:
, 2
! .
!
(
)
129
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130