Tool/software: Linux
Hi TI,
I have TCA9546APWR multiplexer and the same connection diagram with 1.8v. Only two slave sda/scl channels. It is correct wiring or i should pull-up unsed channles too?
Best regards, Viktor.
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Tool/software: Linux
Hi TI,
I have TCA9546APWR multiplexer and the same connection diagram with 1.8v. Only two slave sda/scl channels. It is correct wiring or i should pull-up unsed channles too?
Best regards, Viktor.
Hello Viktor,
I can't read your schematic it is way too small, but generally speaking you don't have to connect anything to the unused channels in an I2C switch. If you do anything, make sure it is a pull up resistor to VCC, so if you do make a mistake coding you don't have excessive current draw.
-Francis Houde