Cap 4 introducere Flashcards

1
Q

Ce sunt CLS-urile?

A

circuite logice in care starea iesirilor depinde atat de starea segventiala a intrarii cat si de starea anterioara a iesirilor

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2
Q

Cand isi modifica starea un CLS?

A

la un anumit moment de timp determinat de un semnal de tact (clock, CK)

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3
Q

Care sunt caracteristicile unui semnal de tact?

A

-perioada T a semnalului
-durata ti
-fregventa

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4
Q

Clasificarea CLS-urilor

A
  • circuite basculante
    -registre de deplesare si memorare
    -numaratoare
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5
Q

Ce sunt CB-urile?

A

Circuite bistabile= CLS-uri cu maxim 2 intrari si o iesire

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6
Q

De cate tipuri sunt CB-urile?

A

3 tipuri :
-monostabile
-bistabile
-astabile

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7
Q

Ce sunt CB bistabile(CBB)?

A

CLS-uri ce prezinta la iesire 2 stari in care pot sta un timp oricat de lung

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8
Q

Ce este un monostabil (CBM)?

A

un CLS ce prezinta la iesire o stare stabila si una cvasistabila in care sta un timp determinat de circuitul de temporizare

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9
Q

Cum functioneaza un monostabil?

A

sta in starea stabila pana cand de la o comanda exterioara trec in starea cvazistabila unde stau o perioada de timp , apoi trec in starea stabila pana la o noua comanda

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10
Q

Ce este un astabil(CBA)?

A

=CLS ce prezinta la iesire 2 stari cvasistabile ce se succed atata timp cat circuitul este alimentat

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11
Q

De cate tipuri sunt CBB-urile?

A

2 tipuri
-sincrone
-aincrone(LATCH)

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12
Q

CBB sincron este…

A

un circuit basculant care are o intrare de tact si numai pe baza ei isi modifica iesirea

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13
Q

Ce este un LATCH?

A

este un CBB la care modificarea iesirii depinde maxim de o intrare de validare

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14
Q
A
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