Digital Electronics - Logic Families and Their Characteristics

Exercise :: Logic Families and Their Characteristics - General Questions

6. 

Assume that a particular IC has a supply voltage (Vcc) equal to +5 V and ICCH = 10 mA and ICCL = 23 mA. What is the power dissipation for the chip?

A. 50 mW
B. 82.5 mW
C. 115 mW
D. 165 mW

Answer: Option B

Explanation:

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7. 

Can a 74HCMOS logic gate directly connect to a 74ALSTTL gate?

A. Yes
B. No

Answer: Option A

Explanation:

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8. 

What is the major advantage of ECL logic?

A. very high speed
B. wide range of operating voltage
C. very low cost
D. very high power

Answer: Option A

Explanation:

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9. 

As a general rule, the lower the value of the speed–power product, the better the device because of its:

A. long propagation delay and high power consumption
B. long propagation delay and low power consumption

Answer: Option B

Explanation:

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10. 

What is the range of invalid TTL output voltage?

A. 0.0–0.4 V
B. 0.4–2.4 V
C. 2.4–5.0 V
D. 0.0–5.0 V

Answer: Option B

Explanation:

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