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  • TI Thinks Resolved

CD74HC4050: Is the effective input voltage range dependent on Vcc?

Prodigy 10 points

Replies: 1

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Part Number: CD74HC4050

Hello.

I am looking for an IC that can down convert a 12V or 5V signal to 3.3V. Is CD74HC4050 possible?
I am worried whether problems will arise if VI becomes higher than VCC.
(Operating Conditions are written as Vi ... 0 V to 15 V.)
Is the effective input voltage range dependent on Vcc?

  • Hello, and welcome to the forums!

    The inputs to the CD74HC4050 are tolerant to up to 16 V signals, regardless of the supply selected.

    If the input voltage is dependent on Vcc, then you will see something like this in the datasheet:

    Input Voltage Range . . . . . . . . . . -0.5V to Vcc + 0.5V


    Looking for a low voltage translator? Check out the AXC family that supports 0.7V to 3.3V translation!

    The Logic Minute training page has videos on many interesting topics that all are kept shorter than 5 minutes.

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