PCA9544 controller equivalent, 4-channel i2c multiplexer and interrupt controller.
* 1-of-4 bi-directional translating multiplexer
* Channel selection via I2C bus
* Operating supply voltage 2.5 to 3.6 V
* Operating temperature range 0°C.
The PCA9544 is a 1-of-4 bi-directional translating multiplexer, controlled via the I2C bus. The SCL/SDA upstream pair fans out to four SCx/SDx downstream pairs, or channels. Only one SCx/SDx channel is selected at a time, determined by the contents o.
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