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DataSheet4U.
com PCA9545A 4-channel I2C switch with interrupt logic and reset Rev.
03 — 3 March 2005 Product data sheet 1.
General description The PCA9545A 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.
Four interrupt inputs, INT0 to INT3, one for each of the downstream pairs, are provided.
One interrupt output, INT, acts as an AND of the four interrupt inputs.
An active LOW reset input allows the PCA9545A to recover from a situation where one of the d...

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