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Topic: MMA7455L 5volt tolerant? (Read 1627 times) previous topic - next topic

MMA7455L 5volt tolerant?

Is the MMA7455L 5V tolerant?

Or doesn't it matter.  I'm planning on using I2C.  If I use an external pullup to 3.3V, the MMA is happy and the AVR should be ok as well.

Am I missing anything?  Thanks!

Re: Re: MMA7455L C Library and Arduino Example

Reply #1
Look at the data sheet.  The MMA7455L is NOT 5V tolerant.  I2C clock (SCL) and data (SDA) pullups to 3.3V should be ok though.