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Hello NXP,
I am currently designing a circuit using the SC18IS604. After reading its datasheet, I couldn’t determine which I/O pins are 5V tolerant. I’m sorry to bother you, but I would like to ask the following questions.
1. When the GPIO pins of the SC18IS604 are configured as input-only, are they 5V tolerant?
2. Are the SDA and SCL lines input/output tolerant? If VDD is 3.3V, is it possible to pull up the I2C-bus to 5V?
Best regards,
Yuichiro
Hello Tomas,
Thank you so much for your quick reply.
I now understand the specifications clearly.
Best regards,
Yuichiro
Hello Yuichiro,
1. Yes.
2. SCL, SDA pins are not 5V tolerant. These pins should not be pulled up to more than VDD.
BRs, Tomas
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