TPS65263-Q1: About i2C interface processing when not in use

Noritomo Harukawa

Intellectual 990 points

Part Number: TPS65263-Q1

I am looking at the 3page of the TPS 65263-Q1 datasheet.
The SCL and SDA pins are described as follows.

I2C interface data pin; float or connect to GND to disable I2C communication

Will not malfunction even if it remains float?

-Harukawa

over 8 years ago

0 Zhao Ma over 8 years ago

TI__Genius 15135 points

Hi, Marukawa

There is no malfunction when be floated.

0 Noritomo Harukawa over 8 years ago in reply to Zhao Ma

Intellectual 990 points

Thank you for your replay.

I have one more question.

What is the reason why it will not break even on a float?

Is SCL or SDA internally pulled up / down?

(I could not find a description that seems to be pulled up / down in the data sheet.)

-Harukawa

0 Zhao Ma over 8 years ago in reply to Noritomo Harukawa

TI__Genius 15135 points

Hi,

I think the SCL or SDA signal don't need to be internally pulled up / down.
When not use I2C control, the SCL or SDA status will be ignored(inactive), so there is no malfunction.

Power management

Power management forum

TPS65263-Q1: About i2C interface processing when not in use