Microprocessors and Microcontrollers (3160914) MCQs

MCQs of 8051 Microcontroller Architecture

Showing 41 to 50 out of 89 Questions
2 3 4 5 6 7
41.

oscillator is connected between .............. pins in 8051

(a)

11-12
(b)

15-16
(c)

18-19
(d)

1-2
Answer:

Option (c)

42.

timer 0 and timer 1 are connected to ...........pins of 8051

(a)

5-6
(b)

8-9
(c)

11-12
(d)

14-15
Answer:

Option (d)

43.

For using port 0 as databus which pin is used

(a)

ALE
(b)

PSEN
(c)

RXD
(d)

NONE
Answer:

Option (a)

44.

ALE is ..............pin in 8051

(a)

28
(b)

30
(c)

32
(d)

34
Answer:

Option (b)

45.

PSEN is pin no.................of 8051

(a)

29
(b)

30
(c)

31
(d)

32
Answer:

Option (a)

46.

EA/VPP is .................pin of 8051

(a)

34
(b)

35
(c)

31
(d)

33
Answer:

Option (c)

47.

RXD is pin no ....................... of 8051

(a)

7
(b)

8
(c)

9
(d)

10
Answer:

Option (d)

48.

TXD is ......................... pin of 8051

(a)

3
(b)

5
(c)

7
(d)

11
Answer:

Option (d)

49.

INT0 is pin no.......................... of 8051

(a)

12
(b)

13
(c)

14
(d)

15
Answer:

Option (a)

50.

INT1 is pin no.................. of 8051

(a)

15
(b)

12
(c)

13
(d)

16
Answer:

Option (b)

Showing 41 to 50 out of 89 Questions
2 3 4 5 6 7