PCA9546 Datasheet PDF - NXP 4-channel I2C switch with reset Specs

PCA9546 - 4-channel I2C switch with reset

Datasheet Summary

Description

The PCA9546 is a quad bi-directional translating switch controlled by the I2C-bus.

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

Any individual SCx/SDx channel or combination of channels can be selected, determined by the contents of the programmable Control Register.

Features

1-of-4 bi-directional translating switches.
I2C interface logic; compatible with SMBus standards.
Active LOW Reset Input.
3 address pins allowing up to 8 devices on the I2C-bus.
Channel selection via I2C-bus, in any combination.
Power.
up with all switch channels deselected.
Low RdsON switches.
Allows voltage level translation between 1.8 V, 2.5 V, 3.3 V and.
No glitch on power-up.
Supports hot ins.

Datasheet Details

Part number	PCA9546
Manufacturer	NXP
File Size	139.17 KB
Description	4-channel I2C switch with reset
Datasheet	PCA9546 Datasheet
Additional preview pages of the PCA9546 datasheet.

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Full PDF Text Transcription

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INTEGRATED CIRCUITS PCA9546 4-channel I2C switch with reset Product data sheet Supersedes data of 2002 Feb 19 2004 Sep 30 Philips Semiconductors Philips Semiconductors Product data sheet 4-channel I2C switch with reset PCA9546 DESCRIPTION The PCA9546 is a quad bi-directional translating switch controlled by the I2C-bus. The SCL/SDA upstream pair fans out to four downstream pairs, or channels. Any individual SCx/SDx channel or combination of channels can be selected, determined by the contents of the programmable Control Register. An active-LOW reset input allows the PCA9546 to recover from a situation where one of the downstream I2C-buses is stuck in a LOW state.

Published: Mar 22, 2005 |