6 ) Find the number of discrete voltages provided by 8 bit DAC.
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
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.
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
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
AD15 – AD0