MCQs on 8086 microprocessor – NPTEL assignment

6 ) Find the number of discrete voltages provided by 8 bit DAC.

a) 256
b) 128
c) 64
d) 32

Accepted Answers:
256

7 ) Which of the following options are correct?

(A) The RS pin is an input pin for LCD.
(B) The RS pin is an output pin for LCD.
(C) The E pin is an input pin for the LCD.
(D) The E pin is an input/output pin for the LCD.

a) A and C
b) A and D
c) B and C
d) B and D

Accepted Answers:
A and D

8 ) Assuming that R = 5K, Iref = 2mA, find the Iout , Vout for the input 10011001 for DAC 0808.

a) Iout =1.195 mA,Vout =5.975 V.
b) Iout =1.875 mA,Vout =9.375 mA.
c) Iout =1.813 mA,Vout =9.0625 mA.
d) Iout =1.34375 mA,Vout =6.71875 mA.

Accepted Answers:
Iout =1.195 mA, Vout =5.975 V.


9 ) Which of the following address lines in an 8086 microprocessor are multiplexed with status signals?

a) A19 – A15
b) A19 – A16
c) A14 – A11
d) A3 – A0

Accepted Answers:
A19 – A16

10 ) Which of the following pins in an 8086 microprocessor are multiplexed with data and address signals?

a) AD15 – AD0
b) AD19 – AD0
c) AD19 – AD1
d) AD19 – AD4

Accepted Answers:
AD15 – AD0

MCQs on 8086 microprocessor – NPTEL assignment
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