PCA9540BD - NXP

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

PCA9540BD
Manufacturer

NXP
ChipWorker Part#

CW96195672
Category

Multiplexer IC
Package

SOIC
Description

NXP PCA9540BD Analog Multiplexer, 2:1, 1 Circuit, 31Ω, 20μA, 2.3V to 5.5V, SOIC-8
Documentation

Datasheet

PCA9540BD Global Supplier

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PCA9540BD Specifications

Attribute	Attribute Value

Part Number	PCA9540BD
Manufacturer	NXP
ChipWorker Part#	CW96195672
Category	Multiplexer IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	8 Pin
Case/Package	SOIC
Contacts Type	DPST
Supply Current	20.0 µA
Number of Circuits	1 Circuit
Number of Positions	8 Position
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	2.3V ~ 5.5V
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Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Unknown
Packaging	Each
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/12/17
ECCN Code	EAR99

Product Description

The PCA9540BD is a 2-channel I²C-bus 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. A power-on reset function puts the registers in their default state and initializes the I²C-bus state machine with no channels selected. The pass gates of the multiplexer are constructed such that the VDD pin can be used to limit the maximum high voltage that is passed by the multiplexer. This allows the use of different bus voltages on each SCx/SDx pair, so that 1.8/2.5/3.3V parts can communicate with 5V parts without any additional protection. External pull-up resistors can pull the bus up to the desired voltage level for this channel. All I/O pins are 5V tolerant.
Channel selection via I²C bus
Low RON switches
No glitch on power-up
Supports hot insertion
Low standby current

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