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Hi Goodix
I use two GR5515GGBD (BGA55) and GR5513BEND (QFN40) chips. In the manuals I could not find an exact answer to the questions:
1. Can I supply a GPIO pin logic level 3.3V if the power supply domain to which it belongs (VDDIO_0 or VDDIO_1) operates from 1.8V? In other words: is the GPIO which operates at 1.8V tolerant to 3.3V (or even higher)?
2. If you can supply 3.3V, will it affect the micro-consumption of the whole chip?
Please help me to understand
Van
hi
The 1.8v IO couldnot be supplied to
logic level 3.3V
,the absolute maximum level for 1.8v IO is 1.8v+0.3v .
you can find the absolut maximum rating in in chapter 13 of the datasheet
if you supply 3,3v to 1.8v IO , maybe cause some damage to chipset
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