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Noob Question: AVRs at 3v3 and SPI Flash, Level Shifter?
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Ok so I know that if I'm running an AVR on 5v, I need a level shifter to interface to SPI Flash.
What if I'm running the AVR at 3v3? Do I still need the level shifter?
I guess a better way to frame the question would be: How does a variance in operating voltage affect the voltage of the SPI pins?
For reference, I'm going to use a 2313A to read a sound file from SPI flash.
Thanks from an AVR Newb...
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