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Is it OK to connect the USB connector to USB host and will it affect MCU?

Latest Updated:12/22/2010

Question:

When using the SH family MCU USB as the USB function module, and the power is not supplied to the MCU, is it possible to connect the USB connector to the USB host and the power is supplied only to the VBUS pin (Apply the voltage to the VBUS pin of the MCU)? Does it affect the MCU status?

Answer:

Such operation does not affect the MCU.
Suitable Products
SH7266, SH7267
SH7265
SH7263
SH7262, SH7264
SH7205
SH7203
SH7670