PCA9548AD - NXP

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

Part No

PCA9548AD
Manufacturer

NXP
ChipWorker Part#

CW69987837
Category

Analog Switch Ic, Analog Switch Multiplexer
Package

SO-24
Description

I2C Multiplexer 1Element 8IN 24Pin SO
Documentation

Datasheet

PCA9548AD Global Supplier

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PCA9548AD Specifications

Attribute	Attribute Value

Part Number	PCA9548AD
Manufacturer	NXP
ChipWorker Part#	CW69987837
Category	Analog Switch Ic, Analog Switch Multiplexer
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	24 Pin
Case/Package	SO-24
Number of Outputs	1 Output
Contacts Type	DPST-NC
Number of Channels	8 Channel
Number of Bits	8 Bit
Power Dissipation	0.4 W
Bandwidth	0.4 MHz
Number of Inputs	8 Input
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	40 ℃
Supply Voltage (Max)	5.5 V
Supply Voltage (Min)	2.3 V
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Size-Length	15.6 mm
Size-Width	7.6 mm
Size-Height	2.45 mm
Product Lifecycle Status	Unknown
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Lead Free

Product Description

Overview
The PCA9548A is an octal bidirectional translating switch controlled via the I²C-bus. The SCL/SDA upstream pair fans out to eight 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 PCA9548A to recover from a situation where one of the downstream I²C-buses is stuck in a LOW state. Pulling the RESET pin LOW resets the I²C-bus state machine and causes all the channels to be deselected as does the internal Power-on reset function.
The pass gates of the switches are constructed such that the VDD pin can be used to limit the maximum high voltage which will be passed by the PCA9548A. This allows the use of different bus voltages on each pair, so that 1.8 V or 2.5 V or 3.3 V parts can communicate with 5 V parts without any additional protection. External pull-up resistors pull the bus up to the desired voltage level for each channel. All I/O pins are 6 V tolerant.
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## Features
* 1-of-8 bidirectional translating switches
* I²C-bus interface logic; compatible with SMBus standards
* Active LOW reset input
* Three address pins allowing up to eight devices on the I²C-bus
* Channel selection via I²C-bus, in any combination
* Power-up with all switch 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
* Operating power supply voltage range of 2.3 V to 5.5 V
* 6 V tolerant inputs
* 0 Hz to 400 kHz clock frequency
* ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per JESD22-C101
* Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
* Three packages offered: SO24, TSSOP24, and HVQFN24
## Features

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