Subsection 08 Integrated circuits

Question 1

3 binary counters in cascade, what is the division?

Answer 1

8. each serial counter changes its state once every 2 clock pulses, so 3 serial counters divides by 2x2x2 = 8

Question 2

A device which converts serial to parallel and parallel to serial arithmetic functions is a?

Answer 2

Shift register

Question 3

A parallel register, reads each BIT to be stored?

Answer 3

Simultaneously

Question 4

A program counter and shift register is called?

Answer 4

Special purpose registers

Question 5

A serial-IN/ Parallel-OUT register would take its outputs from?

Answer 5

The Q outputs from all the flip-flops

Question 6

A shift register is used to?

Answer 6

Move and retain data

Question 7

A typical characteristic of a CMOS is?

Answer 7

Low power dissipation

Question 8

An ALU is an example of

Answer 8

MSI

Question 9

An encoder changes data from?

Answer 9

One format to another

Question 10

An example of a small size integrated circuit would be?

Answer 10

An ALU

Question 11

An RS Flip=flop with Q at 1 is said to be?

Answer 11

SET

Question 12

Data is converted from serial to parallel and parallel to serial by a?

Answer 12

Shift register

Question 13

If 3 binary counters are connected in casade method to form a frequency divider, what is the division factor which will be applied to the signal?

Answer 13

8

Question 14

In a J-K flip flop when J=0, K=1 and Q=1 what will Q be?

Answer 14

0 on the next clock pulse

Question 15

In a master slave, negative edge triggered JK flip flop, both inputs are connected to logic 1. The output will change state when?

Answer 15

The trailing edge of the clock pulse is applied

Question 16

In an RS flip flop, output is one, this means?

Answer 16

It is set

Question 17

On an IC, Pin 1 is to the left of the notch, which way are the pins numbered?

Answer 17

Anticlockwise

Question 18

Operation of a frequency counter is such that it changes the incoming waveform to a?

Answer 18

Standard square wave

Question 19

Synchronous counters are those where all the flip flops are?

Answer 19

Clocked simultaneously

Question 20

The pins on an op-amp are numbered

Answer 20

Anticlockwise

Question 21

Very large scale integrated ( VLSI) means the number of gates in a single IC is upto?

Answer 21

10,000

Question 22

What is the device used to convert binary coded decimal into supplies for a seven segment digital display?

Answer 22

Decoder

Question 23

What will a 4 BIT binary counter read starting from zero after 64 clock pulses?

Answer 23

0000

Question 24

When 4 binary serial counters are connected in cascade for frequency division, what division factor is required?

Answer 24

16

Question 25

When a JK flip flop is used as a memory device, what type of memory would it be?

Answer 25

Volatile

Question 26

Which of the following registers is not directly accessed by the user?

Answer 26

Data buffer

Question 27

Why are MOSFET’s used in watches and calculators?

Answer 27

They are very small/ low power consumption

Question 28

With a J-K flip flop which is the output set?

Answer 28

Q=1

Question 29

Within a 3 Bit frequency cascade, division is to?

Answer 29

8