TMP275 I2C pull-up resistor

Kinga Virag

Other Parts Discussed in Thread: TMP275

I would like to use the TMP275 temprerature sensor. I haven't used I2C yet. The supply voltage will be 3,3 V. Is there any requirent for the pull-up resistors? Or is it ok if i simply use 10k?

over 9 years ago

0 Rajan Arora over 9 years ago

TI__Intellectual 2175 points

Hi Kinga,

The pull-up resistor should be calculated based on the VOL, IOL, VCC, bus capacitance, and rise time spec for the I2C bus.

Please use this app note to calculate the appropriate value of the pull-up resistor for your application.

Thanks,

Rajan

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TMP275 I2C pull-up resistor