Part Number
|
PCA9541 |
Manufacturer
|
NXP Semiconductors |
Description
|
2-to-1 I2C-bus master selector |
Published
|
Jul 17, 2010 |
Detailed Description
|
com
PCA9541
2-to-1 I2C-bus master selector with interrupt logic and reset
Rev. 07 — 2 July 2009 Product...
|
Datasheet
|
PCA9541
|
Overview
com
PCA9541
2-to-1 I2C-bus master selector with interrupt logic and reset
Rev.
07 — 2 July 2009 Product data sheet
1.
General description
The PCA9541 is a 2-to-1 I2C-bus master selector designed for high reliability dual master I2C-bus 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-bus master and are used to select one master at a time.
Either master at any time can gain control of the slave devices if the other ma...
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