Logic Families and Their Characteristcs - Practice Questions

Question 1

How can ECL have both a NOR and an OR output?

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Question 2

Which of the following logic families has the shortest propagation delay?

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Question 3

What is the range of invalid TTL output voltage?

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Question 4

What is the difference between the 74HC00 series and the 74HCT00 series of CMOS logic?

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Question 5

If all inputs to a TTL NAND gate are low, what is the ON, OFF condition of each transistor in the circuit?

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Question 6

What should be done to unused inputs on TTL gates?

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Question 7

How many 74LSTTL logic gates can be driven from a 74TTL gate?

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Question 8

Special handling precautions should be taken when working with MOS devices. Which of the following statements is not one of these precautions?

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Question 9

What is unique about TTL devices such as the 74SXX?

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Question 10

An open collector output can ________ current, but it cannot ________.

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