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DS90UB954-Q1: SDA, SCL pull up voltage

Yuta Kurimoto
Genius 11355 points

Part Number: DS90UB954-Q1

Hello Team,

I got a question from customer about SDA, SCL pull up voltage.

.

Our customer pulls up SDA, SCL line by 3.3V via 4.7k resistor. However they apply 1.8V for VDDIO(7pin, 29pin) and 1.8V for INTB(25pin).

Is this cause any problem? Does customer need to apply same voltage for SDA, SCL, VDDIO and INTB?

Thanks,

Yuta Kurimoto