PCA9306: Regarding swap SCL & SDA on PCA9306

Webber Chang1

Part Number: PCA9306

Hell expert,

Based on below schematic, the device's SDA is connect to PCA9306's SCL2, that means SDA & SCL were swap, this is a NG or an accetpable application? thanks.

webber

over 3 years ago

0 Max Robertson over 3 years ago

TI__Guru 62910 points

Hi Webber,

This is no problem. The two channels are designed identically, so it doesn't matter which one is used for SDA and which one is used for SCL. Please make sure there is a pull-up resistance on the I2C4_SDA and I2C4_SCL lines, though, since this isn't shown in the above schematic excerpt. (Other than that this schematic looks good.)

Regards,
Max

0 Webber Chang1 over 3 years ago

Prodigy 150 points

Hi Max,

Got it, thanks.

Webber

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PCA9306: Regarding swap SCL & SDA on PCA9306