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CCS/TMS320F28032: A question about recognize low level of I2C

Erwin Xie
Intellectual 935 points

Part Number: TMS320F28032

Tool/software: Code Composer Studio

Hi,

I'm a FAE. My last question"Compiler/TMS320F28032: A question about the I2C of C2000".

My customer used an isolator before the I2C pin of our device. the maximum output low level voltage of the isolator may be 0.272VDD, and the low level recognizing threshold of our device is 0.3VDD(from datasheet).

0.272VDD is closed to 0.3VDD, can we make sure that our device can recognize the low level when the number of chips is larger.