DS90UB927Q-Q1: VDDIO input

Vickers

Intellectual 980 points

Part Number: DS90UB927Q-Q1

Hello，

VDDIO input, what is the difference between 3.3V and 1.8V?

over 7 years ago

0 Vijaya Ceekala over 7 years ago

TI__Intellectual 2930 points

VDDIO could be 3.3V or 1.8V. This depends on the Interfacing part to 927.

0 Steven(Shenzhen) Shi over 7 years ago

TI__Mastermind 30515 points

Hi, Vickers

Please understand it from the other viewpoint.

UB927 can support both 1.8V and 3.3V I/O voltage, can be flexible to link with other device without the need of the level shifter, this is UB927's benefit. for example, If the paired part (in general it is processor...) with UB927 only can support 1.8V I/O voltage, you should provide UB927 the 1.8V VDDIO.

best regards,

Steven

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DS90UB927Q-Q1: VDDIO input