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
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