1
GATE ECE 1996
Subjective
+4
-0
Given the Boolean function F in three variables R, S and T as F=$$\,\overline R \,S\overline T + R\overline {S\,} T + RST$$

(a) Express F in the minimum sum-of-products from.
(b) Express F in the minimum product-of-sums from.
(c) Assuming that both true and complement froms of the input variables are avialable, draw a cicruit to implement F using the minimum number of 2input NAND gates only.


2
GATE ECE 1996
MCQ (Single Correct Answer)
+1
-0.3
A 12-bit ADC is operating with a 1$$\mu $$ sec clock period and the total conversion time is seen to be 14 $$\mu $$ sec. The ADC must br of the
A
flash type
B
counting type
C
integrating type
D
successive approximation type.
3
GATE ECE 1996
Subjective
+5
-0
A state machine is required to cycle through the following sequence of states: GATE ECE 1996 Digital Circuits - Sequential Circuits Question 25 English 1

One possible implementation of the state machine is shown figure. Specify what signals should be applied to each of the multiplexer inputs

GATE ECE 1996 Digital Circuits - Sequential Circuits Question 25 English 2
4
GATE ECE 1996
MCQ (Single Correct Answer)
+1
-0.3
Each cell of a static Random Access Memory Contains
A
6 MOS transistors.
B
4 MOS transistors and 2 capacitors
C
2 MOS transistors and 4 capacitors
D
1 MOS transistors and 1 capacitors