PsoC4 and accelerometer I2C compatibility

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Anonymous
Not applicable

Hello,

   

I would like to use I2C for communication between my PSoC 4 chip and accelerometer with 1.8V supply (logic level). I am not sure if I need use a level shifter or they can be connected directly. Would like to use 2.7V supply for the PSoC.

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1 Solution
HeLi_263931
Level 8
Level 8
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The PSoC4 has no capability to run the IO ports on another voltage. So you need a level translator.

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2 Replies
HeLi_263931
Level 8
Level 8
100 solutions authored 50 solutions authored 25 solutions authored

The PSoC4 has no capability to run the IO ports on another voltage. So you need a level translator.

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Anonymous
Not applicable

I think the CMOS 1.8v threshold option for the GPIO input should help here. Create a tech support case with Cypress and see what they have to say.

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