PCA9543A Datasheet

The PCA9543A is a 2-Channel I2C Bus Switch.

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Part NumberPCA9543A
ManufacturerTexas Instruments
Overview The PCA9543A is a dual bidirectional translating switch controlled by the I2C bus. The SCL/SDA upstream pair fans out to two downstream pairs, or channels. Either individual SCn/SDn channel or both ch.
*1 1-of-2 Bidirectional Translating Switches
* I2C Bus and SMBus Compatible
* Two Active-Low Interrupt Inputs
* Active-Low Interrupt Output
* Active-Low Reset Input
* Two Address Pins Allowing up to Four PCA9543A Devices on the I2C Bus
* Channel Selection Via I2C Bus, in Any Combination
* Power-up W.
Part NumberPCA9543A
Description2-channel I2C-bus switch
ManufacturerNXP Semiconductors
Overview The PCA9543A/43B/43C is a bidirectional translating switch, controlled by the I2C-bus. The SCL/SDA upstream pair fans out to two downstream pairs, or channels. Any individual SCx/SDx channels or combi. 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.