PCA9544 Datasheet PDF - NXP 4-channel I2C multiplexer and interrupt controller Specs

PCA9544 - 4-channel I2C multiplexer and interrupt controller

Datasheet Summary

Description

The PCA9544 is a 1-of-4 bi-directional 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.

Features

1-of-4 bi-directional translating multiplexer.
Channel selection via I2C bus.
Operating supply voltage 2.5 to 3.6 V.
Operating temperature range 0°C to 70°C.
Power-up with all multiplexer channels deselected.
3 address pins, allowing up to 8 devices on the I2C bus.
Low on resistance.

Datasheet Details

Part number	PCA9544
Manufacturer	NXP
File Size	77.18 KB
Description	4-channel I2C multiplexer and interrupt controller
Datasheet	PCA9544 Datasheet
Additional preview pages of the PCA9544 datasheet.

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Full PDF Text Transcription

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INTEGRATED CIRCUITS PCA9544 4-channel I2C multiplexer and interrupt controller Product specification Supersedes data of 1999 Apr 01 1999 Oct 07 Philips Semiconductors Philips Semiconductors Product specification 4-channel I2C multiplexer and interrupt controller PCA9544 FEATURES • 1-of-4 bi-directional translating multiplexer • Channel selection via I2C bus • Operating supply voltage 2.5 to 3.6 V • Operating temperature range 0°C to 70°C • Power-up with all multiplexer channels deselected • 3 address pins, allowing up to 8 devices on the I2C bus • Low on resistance DESCRIPTION The PCA9544 is a 1-of-4 bi-directional translating multiplexer, controlled via the I2C bus. The SCL/SDA upstream pair fans out to four SCx/SDx downstream pairs, or channels.

Published: Mar 22, 2005 |