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Image for illustration purposes only,
refer to technical specifications

Manufacturer Part #

PCA9546AD,118

PCA9546A Series 3.6 V 16 µA 400 kHz 4-Channel I2C-bus Switch with Reset -SOIC-16

PCA9546AD,118 Datasheet
ECAD Model: Convert this file for your ECAD tool by downloading the free Library Loader. Learn more about ECAD model.
Mfr. Name:	NXP
Standard Pkg:	Product Variant Information section Available Packaging Package Qty: 2500 per Reel Package Style: SOIC-16 Mounting Method: Surface Mount
Date Code:

NXP PCA9546AD,118 - Technical Attributes

Interface Type:	I2C
No of Channels:	4
Clock Frequency-Max:	400kHz
Supply Voltage-Nom:	2.3V to 5.5V
Supply Current:	16µA
Package Style:	SOIC-16
Mounting Method:	Surface Mount

Features & Applications

The PCA9546A 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 interrupt inputs, INT0 to INT3, one for each of the SCx/SDx downstream pairs, are provided. One interrupt output, INT, which acts as an AND of the four interrupt inputs, is provided.

A power-on reset function puts the registers in their default state and initializes the I2C-bus state machine with no channels selected.

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 multiplexer channels deselected
Low Ron switches
Allows voltage level translation between 1.8 V, 2.5 V, 3.3 V and 5 V buses
No glitch on power-up
Supports hot insertion
Low standby current