Can LPC55S69 run 1.8V GPIO/UART ?

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Can LPC55S69 run 1.8V GPIO/UART ?

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dav1
Contributor V

hi,

The datasheet for LPC55S69JEV98K states VDD 'main io supply', min 1.8V

does that mean 1.800V ? 
i.e. most buck regulators would have about 3-5% output tolerance, meaning the VDD rail and serial IO might as well be 1.72V.

 

Is the datasheet correct, i.e. 1.8V is absolute minimum? or can you run the LPC55-series safely in a 1.8V system?

 

thx

 

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ZhangJennie
NXP TechSupport
NXP TechSupport

Hi dav1 

Yes LPC55S69 VDD absolute minimum is 1.8V. We can guarantee the part work safe with 1.8V.

 We can't guarantee operation normal with  1.72V VDD.

Thanks,

Jun Zhang

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