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PCA9544A

4-channel I2C multiplexer with interrupt logic

Philips Electronics 

Philips Semiconductors

4-channel I2C multiplexer with interrupt logic

BLOCK DIAGRAM

PCA9544A

SC0

SC1

SC2

SC3

SD0

SD1

SD2

SD3

VSS

VDD

SCL

SDA

POWER-ON

RESET

INPUT

FILTER

SWITCH CONTROL LOGIC

I2C-BUS

CONTROL

INT[0–3]

INT LOGIC

Figure 3. Block diagram

Product data sheet

PCA9544A

A0

A1

A2

INT

SW02267

2004 Sep 29

4

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