Hello everyone,
Im doing a project for school, while my schematic is almost done, I still need to connect the address pins (A0, A1, A2, A3), since im using multiple of the same led driver ( https://www.nxp.com/docs/en/data-sheet/PCA9952_PCA9955.pdf > datasheet), I need to connect these address pins. My question is where do I connect the address pins to? Since online I haven't seen much except someone saying they need to be connected to either the SCL or SDA while in the datasheet you can somewhere see the sentence: "In order to obtain the best system level ESD performance, a standard pull-up resistor (10 k typical) is required for any address pin connecting to VDD. For additional information on system level ESD performance, please refer to application notes AN10897 and AN11131." Which says you need to connect the address pins to the VDD, but doesn't it need to be connected to the i2C?
Part of my schematic is uploaded here, I hope anyone can help me with this.
Im doing a project for school, while my schematic is almost done, I still need to connect the address pins (A0, A1, A2, A3), since im using multiple of the same led driver ( https://www.nxp.com/docs/en/data-sheet/PCA9952_PCA9955.pdf > datasheet), I need to connect these address pins. My question is where do I connect the address pins to? Since online I haven't seen much except someone saying they need to be connected to either the SCL or SDA while in the datasheet you can somewhere see the sentence: "In order to obtain the best system level ESD performance, a standard pull-up resistor (10 k typical) is required for any address pin connecting to VDD. For additional information on system level ESD performance, please refer to application notes AN10897 and AN11131." Which says you need to connect the address pins to the VDD, but doesn't it need to be connected to the i2C?
Part of my schematic is uploaded here, I hope anyone can help me with this.
Attachments
-
42.5 KB Views: 0