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5. poglavje: Sekvenčna vezja

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Presentation on theme: "5. poglavje: Sekvenčna vezja"— Presentation transcript:

1 5. poglavje: Sekvenčna vezja
Digitalna tehnika 5. poglavje: Sekvenčna vezja Real-Time Systems Laboratory, Institute of Informatics

2 Sekvenčna vezja sestavljajo poleg kombinacijskih vezij tudi spominski elementi. Ti si zapomnijo stanje iz zgodovine in lahko z njim vplivamo na izhode v nekem trenutku poleg aktualnih vhodov. Vrste: sinhronska: stanje vezja se spremeni ob točno določenih diskretnih časovnih trenutkih. Njihovo delovanje je sinhronizirano s skupnim taktom - uro. asinhronska: obnašanje vezij je določeno z zaporedjem prihoda vhodnih signalov v poljubnih časovnih trenutkih; vezja med seboj niso posebej sinhronizirana s skupnim taktom. Real-Time Systems Laboratory, Institute of Informatics

3 RS flip flop . Real-Time Systems Laboratory, Institute of Informatics

4 RS flip flop . Real-Time Systems Laboratory, Institute of Informatics

5 Sinhroni RS flip flop . Real-Time Systems Laboratory, Institute of Informatics

6 D flip flop . Real-Time Systems Laboratory, Institute of Informatics

7 D flip flop z asinhronimi vhodi
. Real-Time Systems Laboratory, Institute of Informatics

8 D flip flop z asinhronimi vhodi
Proženje JK FF s fronto in ne z nivojem: Real-Time Systems Laboratory, Institute of Informatics

9 D in T flip flop realizirana z JK FF
D flip flop: T flip flop: Real-Time Systems Laboratory, Institute of Informatics

10 Mono- in astabilni FF Real-Time Systems Laboratory, Institute of Informatics

11 Binarni serijski (ripple) števec
Števec kot delilec frekvence: Števec do 12: Real-Time Systems Laboratory, Institute of Informatics

12 Registri Real-Time Systems Laboratory, Institute of Informatics

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