PCA9517 5V Voltage Tolerant

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PCA9517 5V Voltage Tolerant

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zulkifliaziz
Contributor I

I checked the datasheet for the PCA9517. It stated that the PCA9517 is 5V tolerant. 

The PCA9517 is 5 V tolerant, so it does not require any additional circuitry to translate
between 0.9 V to 5.5 V bus voltages and 2.7 V to 5.5 V bus voltages.

If I want to translate 3.3V to 5V I2C. Can I feed 5V to EN, VCCA and VCCB? instead of having two-level of voltages feed into VCCA and VCCB?

diagram attached for illustration. 

Thank you.

Best regards,

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guoweisun
NXP TechSupport
NXP TechSupport

Hi

EN is pull up to VCCB internal of IC,you can feed VCCB/EN as 3.3V SDAB/SCLB pull up to VCCB,and SDAA/SCLA pull up to VCCA 5V.

 

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