PCA9543B - 2-channel I2C-bus switch

Product Overview

NXP Semiconductors

Part number	PCA9543B
Manufacturer	NXP Semiconductors
File Size	169.47 KB
Description	2-channel I2C-bus switch
Datasheet	PCA9543B Datasheet
Note	This datasheet PDF includes multiple part numbers: PCA9543B, PCA9543A. Please refer to the document for exact specifications by model.
Additional preview pages of the PCA9543B datasheet.

The PCA9543A/43B/43C is a bidirectional translating switch, controlled by the I2C-bus.

I I I I I I I I I I I I I I I 1-of-2 bidirectional translating switches I2C-bus interface logic; compatible with SMBus standards 2 active LOW interrupt inputs Active LOW interrupt output Active LOW reset input 2 address pins allowing up to 4 devices on the I2C-bus Alternate address versions A, B and C allow up to a total of 12 devices on the bus for larger systems or to resolve address conﬂicts Channel selection via I2C-bus, in any combination Power-up with all switch channels deselected Low Ron.

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Published: Mar 30, 2010 |