PCA9541A 2-to-1 I2C-bus master selector

NXP Semiconductors

Description

PCA9541A 2-to-1 I2C-bus master selector with interrupt logic and reset Rev.5 * 24 April 2014 Product data sheet 1.General .
The PCA9541A is a 2-to-1 I2C-bus master selector designed for high reliability dual master I2C-bus applications where system operation is required, ev.

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Datasheet Specifications

Part number: PCA9541A
Manufacturer: NXP ↗ Semiconductors
File Size: 390.17 KB
Datasheet: PCA9541A_NXPSemiconductors.pdf
Description: 2-to-1 I2C-bus master selector

Features

* 2-to-1 bidirectional master selector
* I2C-bus interface logic; compatible with SMBus standards
* PCA9541A/01 powers up with Channel 0 selected
* PCA9541A/03 powers up with no channel selected and either master can take control of the bus
* Active LOW interrupt input
* 2 ac

Applications

* where system operation is required, even when one master fails or the controller card is removed for maintenance. The two masters (for example, primary and back-up) are located on separate I2C-buses that connect to the same downstream I2C-bus slave devices. I2C-bus commands are sent by either I2C-bu

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PCA9541A 2-to-1 I2C-bus master selector NXP Semiconductors

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