mars

IC not available anymore

7 posts in this topic

Hello,

i've got a small (i hope so) problem with parts i want to order at Reichelt.de.
The 74HCT 541 by Texas Instruments is not available any more, nor at reichelt or at mouser. For building a STM32F4, can one use 74HC 541 instead ?

Thanks in advance,

Martin

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Depending on what you want to do you can leave it away completely.

What housing do you need? DIP or SMD?

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upps, i think i didn't find them at mouser. they have slightly different identifiers, but if you say i can use them all?

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i need them for  DIP

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You cannot substitute for HC logic in this case. HCT is required to level-shift the logic to +5V, whereas a 3v3 3V signal pushes the threshold limits of a HC chip powered at +5V.

595-SN74HCT541N should be suitable.

Edited by latigid on

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thank you all!

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