Product description
The PCA9543A is a bidirectional translating switch controlled by the I2C bus. The SCL/SDA upstream pair fans
out to two downstream pairs, or channels. Any individual SCn/SDn channel or combination of channels can be
selected, determined by the contents of the programmable control register. Two interrupt inputs (INT0-INT1),
one for each of the downstream pairs, are provided. One interrupt output (INT) acts as an AND of the two
interrupt inputs.
out to two downstream pairs, or channels. Any individual SCn/SDn channel or combination of channels can be
selected, determined by the contents of the programmable control register. Two interrupt inputs (INT0-INT1),
one for each of the downstream pairs, are provided. One interrupt output (INT) acts as an AND of the two
interrupt inputs.