Leji sesi >.<

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• Sistemul are un port de intrare care poate fi citit prin intermediul unei variabile localizate la adresa AD32H.
• Circuitul 74HCT373 memoreaza si transmite octetul cel mai putin semnificativ al magistralei de adrese la activarea semnalului ALE.
• Circuitul de reset filstreaza salturile de tensiune la apasarea tastei.
• Sistemul are un port de iesire care poate fi scris prin intermediul unei variabile localizate la adresa 823DH.
• Sistemul are un port de iesire care poate fi scris prin intermediul unei variabile localizate la adresa 2AE6H.

Despre marginile de zgomot ale portii fundamentale SI-NU construita in tehnologie TTL, se pot afirma urmatoarele: (4 raspunsuri)

• Valoarea garantata a marginii de zgomot pentur "0" logic este de 0.4V.
• Valoarea garantata a marginii de zgomot pentru "0" logic este egala cu valoarea garantata a marginii de zgomot pentru "1" logic.
• Valoarea reala a marginii de zgomot pentru "0" logic depaseste valoarea garantata pentru aceeasi stare logica.
• Marginile reale de zgomot explica preferinta ca starea de inalta impedanta a unui circuit logic sa fie comandata cu starea logica "1".
• Valoarea garantata se calucleaza in functie de tensiunea prag.

What components does a microcontroller include? (2 answers)

• Keyboard
• Memory
• Power supply
• Counter

Consider the 80C51 microcontroller system in the figure. Which statements are correct? (4 answers)

• The system has an input port that can be read through a variable located at address C237H.
• The system has an output port that can be written through a variable located at address 41B7H.
• The partial selection is used to activate the input port.
• The clock generator circuit consists of both external components of the microcontroller and components integrated in it.
• The total selection is used to activate the input port.

Which bus is bidirectional?

• None
• Address bus
• Address and data bus
• Data bus

Forward switching time is:

• The necessary time for a transistor to switch from the conduction state to the cut-off state.
• The necessary time for a transistor to switch from the normal state to the reverse state.
• The necessary time for a transistor to switch from the cut-off state to the conduction state.