TCA9517 / Use with 3.3V bus master with 5V and 3.3V slave

S.Satoshi

Other Parts Discussed in Thread: TCA9517

Hi,

I plan to use two TCA9517 for .3V bus master with 5V and 3.3V slave. Can I use two TCA9517 with following configuration? Please let me know if you have any concern.

Best Regards,

Sonoki

over 9 years ago

0 Siby James over 9 years ago

TI__Expert 5140 points

Hi Sonoki,

Thank you for the question. I will look into this configuration for you and provide feedback.

Thanks,
Siby

0 S.Satoshi over 9 years ago in reply to Siby James

Guru 21685 points

Hi Siby,

Thank you for your support. I'm waiting for your update.

Best Regards,
Sonoki

0 Siby James over 9 years ago in reply to S.Satoshi

TI__Expert 5140 points

Hi Sonoki,

This configuration will work for your application. The concern that I wanted to clear up with the team was the static offset voltage (0.4V) affecting the input voltage (VIL) of your master. In this case since you are translating from 3.3V you should be fine.

Thanks,
Siby

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TCA9517 / Use with 3.3V bus master with 5V and 3.3V slave