i2c scl and sda pull up resistor value help

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raman00084

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what value of pullup resistor can i use in scl and sda pins my i2c clock speed is 200khz and i am connecting 3 i2c devices, my microcontroller is pic18f4520 kindly help

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kalyan
 

You must refer to the slave device datasheet.
There you can find graph relating the pull-up resistor range as a function of the access speed mode.
 

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