| 1. | A 5-bit asynchronous binary counter is made up of five flip-flops, each with a 12 ns propagation delay. The total propagation delay (tp(tot)) is ? | |
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12 ms
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24 ns
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48 ns
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60 ns
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Report Question| 2. | MOD-6 and MOD-12 counters and multiples are most commonly used as: ? | |
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frequency counters
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multiplexed displays
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digital clocks
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power consumption meters
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| 3. | How many different states does a 2-bit asynchronous counter have ? | |
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2
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3
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4
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1
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| 4. | What is the difference between a ring shift counter and a Johnson shift counter ? | |
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There is no difference
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A ring is faster
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The feedback is reversed
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The Johnson is faster
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| 5. | Ring shift and Johnson counters are: ? | |
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synchronous counters
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asynchronous counters
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true binary counters
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synchronous and true binary counters
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| 6. | A counter with a modulus of 16 acts as a ________ ? | |
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divide-by-8 counter
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divide-by-16 counter
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divide-by-32 counter
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divide-by-64 counter
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| 7. | To keep output data accurate, 4-bit series-in, parallel-out shift registers employ a ________ ? | |
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divide-by-4 clock pulse
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sequence generator
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strobe line
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multiplexer
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| 8. | By adding recirculating lines to a 4-bit parallel-in, serial-out shift register, it becomes a ________, ________, and ________-out register ? | |
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parallel-in, serial, parallel
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serial-in, parallel, serial
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series-parallel-in, series, parallel
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bidirectional in, parallel, series
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| 9. | Three cascaded modulus-5 counters have an overall modulus of ________ ? | |
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5
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25
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125
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500
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| 10. | In a 4-bit Johnson counter sequence there are a total of how many states, or bit patterns ? | |
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1
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2
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4
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8
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