PCA9541 - 2-to-1 I2C-bus master selector

NXP Semiconductors

PCA9541 Datasheet Preview — Preview of PCA9541 PDF

Datasheet Details

Part number	PCA9541
Manufacturer	NXP ↗ Semiconductors
File Size	403.66 KB
Description	2-to-1 I2C-bus master selector
Datasheet	PCA9541_NXPSemiconductors.pdf

PCA9541 Product details

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.

Features

2-to-1 bidirectional master selector.
I2C-bus interface logic; compatible with SMBus standards.
PCA9541/01 powers up with Channel 0 selected.
PCA9541/03 powers up with no channel selected and either master can take control of the bus.
Active LOW interrupt input.
2 active LOW interrupt outputs.
Active LOW reset input.
4 address pins allowing up to 16 devices on the I2C-bus.
Channel selection via I2C-bus.
Bus initialization/recovery function.

📁 PCA9541 Similar Datasheet

PCA9540 - 2-channel I2C multiplexer (NXP)
PCA9540B - 2-channel I2C-bus multiplexer (NXP)
PCA9542 - 2-channel I2C multiplexer and interrupt controller (NXP)
PCA9543 - 2-channel I2C switch (NXP)
PCA9543A - 2-Channel I2C Bus Switch (Texas Instruments)
PCA9544 - 4-channel I2C multiplexer and interrupt controller (NXP)
PCA9544A - 4-channel I2C-bus multiplexer (NXP)
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Other Datasheets by NXP Semiconductors

PCA9541A - 2-to-1 I2C-bus master selector
PCA9542A - 2-channel I2C-bus multiplexer and interrupt logic
PCA9543B - 2-channel I2C-bus switch
PCA9543C - 2-channel I2C-bus switch
PCA9549 - Octal bus switch
PCA9502 - 8-bit I/O expander

Published: Jul 17, 2010 |