What is the voltage range considered to be...

What is the voltage range considered to be...

Question 1 of 27070

Q

What is the voltage range considered to be valid logic low input in a TTL device operating at 5 volts?

A

2.0 to 5.5 volts.

B

-2.0 to -5.5 volts.

C

Zero to 0.8 volts.

D

5.2 to 34.8 volts.

Question 1 / 27070pT3Pi2BxGq4mZDLOKEG9

Question 1 of 27070pT3Pi2BxGq4mZDLOKEG9

What is the voltage range considered to be valid logic low input in a TTL device operating at 5 volts?

Question 1 of 27070

Study area:

Study area:

Q

What is the voltage range considered to be valid logic low input in a TTL device operating at 5 volts?

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🔍 Key Concepts

• TTL logic levels for a 5 V supply (what ranges are LOW vs HIGH) • Typical noise margins and why the LOW range is not right up to 2.5 V (midpoint of 5 V) • Difference between input voltage levels and the overall supply voltage rating

💭 Think About

• If a TTL device is powered at 5 V, what approximate voltage is clearly understood as a binary 0 at the input? • Look at which choices fall near ground (0 V) and which are clearly above the threshold where TTL considers a signal HIGH. • Eliminate any ranges that include voltages greater than what TTL would ever treat as a definite 0.

✅ Before You Answer

• Verify the standard TTL input LOW threshold, usually denoted as V_IL(max), for a 5 V device. • Check that the chosen range starts from 0 V (ground) and ends at or below the specified V_IL(max). • Confirm that the option does not include voltages that TTL datasheets classify as logic HIGH (V_IH).