What is the voltage range considered to be a...

Question 1 / 27070x9k3hpZhUM9mKxuoU7tg

Question 1 of 27070x9k3hpZhUM9mKxuoU7tg

What is the voltage range considered to be a valid logic high input in a TTL device operating at 5.0 volts?

Question 1 of 27070

What is the voltage range considered to be a valid logic high input in a TTL device operating at 5.0 volts?

🔍 Key Concepts

• TTL logic levels for a 5 V supply • The typical minimum voltage guaranteed to be read as a logic HIGH in standard TTL • The typical maximum voltage guaranteed to be read as a logic LOW in standard TTL

💭 Think About

• Which answer choice starts clearly above the maximum voltage that can still be treated as a LOW in TTL? • For a 5 V TTL system, where does the data sheet usually put the boundary between LOW and HIGH logic levels? • Look at each range and ask: would the lower end of this range always be safely recognized as a HIGH in standard TTL?

✅ Before You Answer

• Check the standard TTL VIH(min) (minimum input voltage for logic HIGH) value from a typical 5 V TTL datasheet. • Confirm that any value below the standard VOH(min) is not what defines the input HIGH threshold. • Verify that the upper end of the chosen range does not exceed the supply and absolute maximum ratings for typical TTL inputs.

Question 1 of 27070

What is the voltage range considered to be a valid logic high input in a TTL device operating at 5.0 volts?

2.0 to 5.5 volts.

1.5 to 3.0 volts.

1.0 to 1.5 volts.

5.2 to 34.8 volts.