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DataSheet4U.
com PCA9546A 4-channel I2C switch with reset Rev.
03 — 6 April 2005 Product data sheet 1.
General description The PCA9546A is a quad bi-directional translating switch controlled via the I2C-bus.
The SCL/SDA upstream pair fans out to four downstream pairs, or channels.
Any individual SCx/SDx channel or combination of channels can be selected, determined by the contents of the programmable control register.
An active LOW reset input allows the PCA9546A to recover from a situation where one of the downstream I2C-buses is stuck in a LOW state.
Pulling the RESET pin LOW resets the I2C-bus state machine and causes all the channels to be deselected as does the internal Power-On Re...

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