Does i.MX8M mini USBx_VBUS pin can directly connect to the 1.8 V or 3.3V?

Danube · ‎03-12-2020

WE know add 30k ohm when connect to 5V.

Yuri · ‎03-12-2020

Hello,

From hardware specs of the i.MX8Mm [Table 9 (Operating ranges) in IMX8MMCEC],

USB1_VBUS and USB2_VBUS should be in range 0.800 -- 3.60 V, typ = 1.40 V.

So it is possible to connect the VBUS to any output of allowed voltage, but

it is USB VBUS input detect signal, which reflects USB VBUS, used in USB protocols.

Regards,

Yuri.