7. Исследование т – триггера.
Схема Т – триггера по схеме с запрещающими связями.
&
&
Q
&
&
1
Q
T
&
&
&
&
Q1 Q
Временная диаграмма
T
Q1
Q
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T |
Qn |
Qn+1 |
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1 |
0 |
0 |
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1 |
1 |
1 |
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0 |
1 |
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1 |
0 |
8. Исследование jk – триггера.
Схема JK – триггера по схеме с запрещающими связями.
J
&
&
&
&
Q1 Q
C
&
&
&
Q1 Q
K
&
Временная диаграмма
С
J
K
Q1
Q
JK – триггер является универсальным триггером
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J |
K |
C |
Qn |
Qn+1 |
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0 |
0 |
0 |
0 |
0 |
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0 |
0 |
0 |
1 |
1 |
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0 |
0 |
1 |
0 |
0 |
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0 |
0 |
1 |
1 |
1 |
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0 |
1 |
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0 |
0 |
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0 |
1 |
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1 |
0 |
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0 |
1 |
1 |
0 |
0 |
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0 |
1 |
1 |
1 |
1 |
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1 |
0 |
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0 |
1 |
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1 |
0 |
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1 |
1 |
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1 |
0 |
1 |
0 |
0 |
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1 |
0 |
1 |
1 |
1 |
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1 |
1 |
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0 |
1 |
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1 |
1 |
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1 |
0 |
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1 |
1 |
1 |
0 |
0 |
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1 |
1 |
1 |
1 |
1 |
Базовый элемент И – НЕ RS – триггер синхронизируемый фронтом
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Х1 |
Х2 |
Х3 |
У |
|
S |
R |
C |
Qn |
Qn+1 |
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0 |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
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|
0 |
0 |
1 |
1 |
0 |
0 |
0 |
1 |
1 |
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0 |
1 |
0 |
1 |
0 |
0 |
1 |
0 |
0 |
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0 |
1 |
1 |
1 |
0 |
0 |
1 |
1 |
1 |
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|
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0 |
0 |
1 |
0 |
1 |
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0 |
0 |
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0 |
1 |
1 |
0 |
1 |
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1 |
0 |
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1 |
1 |
0 |
1 |
0 |
1 |
1 |
0 |
0 |
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1 |
1 |
1 |
0 |
0 |
1 |
1 |
1 |
1 |
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1 |
0 |
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0 |
1 |
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1 |
0 |
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1 |
1 |
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1 |
0 |
1 |
0 |
0 |
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1 |
0 |
1 |
1 |
1 |
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1 |
1 |
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0 |
? |
|||||
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1 |
1 |
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1 |
? |
|||||
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1 |
1 |
1 |
0 |
0 |
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1 |
1 |
1 |
1 |
1 |
|||||
1
1
D - триггер синхронизируемый по уровню D – триггер синхронизируемый по фронту
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D |
C |
Qn |
Qn+1 |
|
D |
C |
Qn |
Qn+1 |
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0 |
0 |
0 |
0 |
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0 |
0 |
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0 |
1 |
1 |
0 |
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1 |
0 |
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0 |
0 |
0 |
1 |
0 |
0 |
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1 |
0 |
0 |
1 |
1 |
1 |
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0 |
0 |
0 |
1 |
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0 |
1 |
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0 |
1 |
1 |
1 |
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1 |
1 |
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0 |
1 |
1 |
1 |
0 |
0 |
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|
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1 |
1 |
1 |
1 |
1 |
1 |
0
0
0
0
1
1
1
1
Т – триггер JK - триггер
|
T |
Qn |
Qn+1 |
|
J |
K |
C |
Qn |
Qn+1 |
|
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
1 |
1 |
1 |
0 |
0 |
0 |
1 |
1 |
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0 |
1 |
0 |
0 |
1 |
0 |
0 |
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1 |
0 |
0 |
0 |
1 |
1 |
1 |
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0 |
1 |
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0 |
0 |
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0 |
1 |
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1 |
0 |
||||
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0 |
1 |
1 |
0 |
0 |
||||
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0 |
1 |
1 |
1 |
1 |
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1 |
0 |
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0 |
1 |
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1 |
0 |
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1 |
1 |
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1 |
0 |
1 |
0 |
0 |
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1 |
0 |
1 |
1 |
1 |
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1 |
1 |
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0 |
1 |
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1 |
1 |
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1 |
0 |
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1 |
1 |
1 |
0 |
0 |
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1 |
1 |
1 |
1 |
1 |
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