Datasheet Texas Instruments PCA9544APWRG4

ManufacturerTexas Instruments
SeriesPCA9544A
Part NumberPCA9544APWRG4
Datasheet Texas Instruments PCA9544APWRG4

4-Channel I2C And SMBus Multiplexer With Interrupt Logic 20-TSSOP -40 to 85

Datasheets

PCA9544A Low Voltage 4-Channel IВІC and SMBus Multiplexer With Interrupt Logic datasheet
PDF, 1.4 Mb, Revision: E, File published: Jun 12, 2014
Extract from the document

Prices

Status

Lifecycle StatusActive (Recommended for new designs)
Manufacture's Sample AvailabilityYes

Packaging

Pin20
Package TypePW
Industry STD TermTSSOP
JEDEC CodeR-PDSO-G
Package QTY2000
CarrierLARGE T&R
Device MarkingPD544A
Width (mm)4.4
Length (mm)6.5
Thickness (mm)1
Pitch (mm).65
Max Height (mm)1.2
Mechanical DataDownload

Parametrics

Channel Width4
I2C Address1110 xxx
Operating Temperature Range-40 to 85 C
Package GroupTSSOP
Simultaneously Active Channels1
Special FeaturesInterrupt Output,5V Tolerant I/O
VCC(Max)5.5 V
VCC(Min)2.3 V
fSCLK(Max)0.4 MHz
tpd max1 ns

Eco Plan

RoHSCompliant

Application Notes

  • Troubleshooting I2C Bus Protocol
    PDF, 184 Kb, File published: Oct 19, 2009
    When using the I2Cв„ў bus protocol, the designer must ensure that the hardware complies with the I2C standard. This application report describes the I2C protocol and provides guidelines on debugging a missing acknowledgment, selecting the pullup resistors, or meeting the maximum capacitance load of an I2C bus. A conflict occurs if devices sharing the I2C bus have the same slave address. This
  • Programming Fun Lights With TI's TCA6507
    PDF, 109 Kb, File published: Nov 30, 2007
  • Choosing the Correct I2C Device for New Designs
    PDF, 87 Kb, File published: Sep 7, 2016
    The I2C bus is a very popular and powerful bus used for communication between a single (or multiple)master and a single (or multiple) slave device. In many applications there is a potential need for moreslave devices on the bus, isolation between similar addressed slaves, or a need for more I/Os. Theseneeds can be solved with an I2C buffer, switch, and I/O expander.The application note h
  • Maximum Clock Frequency of I2C Bus Using Repeaters
    PDF, 116 Kb, File published: May 15, 2015
    TCA9617 Maximum Allowed Frequency on I2C Bus Using Repeaters
  • I2C Bus Pull-Up Resistor Calculation
    PDF, 157 Kb, File published: Feb 13, 2015
  • Understanding the I2C Bus
    PDF, 124 Kb, File published: Jun 30, 2015

Model Line

Manufacturer's Classification

  • Semiconductors > Interface > I2C > I2C Switches and Multiplexers