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PCA9542 - 2-channel I2C multiplexer and interrupt controller

Datasheet Summary

Description

The PCA9542 is a 1-of-2 bi-directional translating multiplexer, controlled via the I2C bus.

The SCL/SDA upstream pair fans out to two 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-2 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.

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Datasheet preview – PCA9542

Datasheet Details

Part number PCA9542
Manufacturer NXP
File Size 74.20 KB
Description 2-channel I2C multiplexer and interrupt controller
Datasheet download datasheet PCA9542 Datasheet
Additional preview pages of the PCA9542 datasheet.

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Full PDF Text Transcription

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INTEGRATED CIRCUITS PCA9542 2-channel I2C multiplexer and interrupt controller Product specification 1999 Oct 07 Philips Semiconductors Philips Semiconductors Product specification 2-channel I2C multiplexer and interrupt controller PCA9542 FEATURES • 1-of-2 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 PCA9542 is a 1-of-2 bi-directional translating multiplexer, controlled via the I2C bus. The SCL/SDA upstream pair fans out to two SCx/SDx downstream pairs, or channels.
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