Electronics and Communication Engineering - Digital Electronics

46. 

In which function is each term known as minterm?

A. SOP
B. POS
C. Hybrid
D. Both SOP and POS

Answer: Option A

Explanation:

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47. 

How many and what are the machine cycles needed for execution of MOV D, C?

A. 1, Fetch
B. 2, Fetch and Memory Read
C. 2, Memory Read and Memory write
D. 2, Fetch 4 Bus idle

Answer: Option A

Explanation:

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48. 

The output data lines of microprocessor and memories are usually tristated because

A. more than one device can transmit information over the data bus by enabling only one device at a time
B. more than one device can transmit information over the data bus at the same time
C. the data lines can be multiplexed for both I/P and O/P
D. it increases the speed of data transfers over the data bus

Answer: Option A

Explanation:

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49. 

In the NMOS inverter

A. the driver and active load are enhancement type
B. driver is enhancement type and load depletion type
C. driver is depletion type and load enhancement type
D. both driver and load are depletion type

Answer: Option B

Explanation:

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50. 

A counter displays a sequence of numbers. If a reading corresponds to the hexadecimal number F52E, the next two readings are respectively

A. F52F, F520
B. F530, F531
C. F52F, F530
D. F52F, F52G

Answer: Option C

Explanation:

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