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PCA9541

2-to-1 I2C-bus master selector with interrupt logic and reset

NXP Semiconductors. 

NXP Semiconductors

6. Block diagram

PCA9541

2-to-1 I2C-bus master selector with interrupt logic and reset

PCA9541

SCL_MST0

SDA_MST0

A3

A2

A1

A0

RESET

VDD

SCL_MST1

SDA_MST1

INPUT

FILTER

STOP

DETECTION

POWER-ON

RESET

I2C-BUS

CONTROL

AND

REGISTER

BANK

INPUT

FILTER

STOP

DETECTION

BUS

SENSOR

SLAVE

CHANNEL

SWITCH

CONTROL

LOGIC

BUS

RECOVERY/

INITIALIZATION

OSCILLATOR

SCL_SLAVE

SDA_SLAVE

INT0

INT1

INTERRUPT

LOGIC

Fig 1. Block diagram of PCA9541

INT_IN

VSS

002aab382

PCA9541_7

Product data sheet

Rev. 07 — 2 July 2009

© NXP B.V. 2009. All rights reserved.

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