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DESCRIPTION/ORDERING INFORMATION (CONTINUED)

PCA9548A

WITH RESET

SCPS143C – OCTOBER 2006 – REVISED JUNE 2007

upstream pair fans out to eight 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.

The system master can reset the PCA9548A in the event of a timeout or other improper operation by asserting a

machine. Asserting RESET causes the same reset/initialization to occur without depowering the part.

voltage, which is passed by the PCA9548A. This allows the use of different bus voltages on each pair, so that

2.5-V or 3.3-V parts can communicate with 5-V parts, without any additional protection. External pullup resistors

pull the bus up to the desired voltage level for each channel. All I/O pins are 5-V tolerant.

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Not Recommended For New Designs