Datasheet Summary
4-channel I2C-bus switch with reset
Rev. 6
- 30 April 2014
Product data sheet
1. General description
The PCA9546A is a quad bidirectional 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 bination 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 Reset (POR)...
