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PCA9544A Datasheet - NXP

PCA9544A_PhilipsSemiconductors.pdf

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Datasheet Details

Part number:

PCA9544A

Manufacturer:

NXP ↗

File Size:

271.16 KB

Description:

4-channel i2c-bus multiplexer.

PCA9544A, 4-channel I2C-bus multiplexer

The PCA9544A is a 1-of-4 bidirectional translating multiplexer, controlled via the I2C-bus.

The SCL/SDA upstream pair fans out to four SCx/SDx downstream pairs, or channels.

Only one SCx/SDx channel is selected at a time, determined by the contents of the programmable control register.

Four interrup

PCA9544A Features

* 1-of-4 bidirectional translating multiplexer

* I2C-bus interface logic; compatible with SMBus

* 4 active LOW interrupt inputs

* Active LOW interrupt output

* 3 address pins allowing up to 8 devices on the I2C-bus

* Channel selection via I2C-bus

* Power-up with all multi

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