Datasheet Texas Instruments PCF8574PWRG4

ManufacturerTexas Instruments
SeriesPCF8574
Part NumberPCF8574PWRG4
Datasheet Texas Instruments PCF8574PWRG4

Remote 8-Bit I/O Expander for I2C-Bus 20-TSSOP -40 to 85

Datasheets

PCF8574 Remote 8-Bit I/O Expander for I2C Bus datasheet
PDF, 1.6 Mb, Revision: J, File published: Mar 9, 2016
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 MarkingPF574
Width (mm)4.4
Length (mm)6.5
Thickness (mm)1
Pitch (mm).65
Max Height (mm)1.2
Mechanical DataDownload

Parametrics

I2C Address0100 xxx
Max Frequency100 kHz
Number of I/Os8
Operating Temperature Range-40 to 85 C
Package GroupTSSOP
RatingCatalog
VCC(Max)6 V
VCC(Min)2.5 V
Voltage Nodes5,3.3 V
fSCLK(Max)0.1 MHz

Eco Plan

RoHSCompliant

Application Notes

  • Improving System Interrupt Management Using the PCF8574 and PCF8574A I/O Expande
    PDF, 216 Kb, File published: Jul 27, 2001
    In today?s complex, embedded, computing and data-communication systems, interrupts areused extensively to service peripheral devices. However, because of the pin-numberlimitation on packages, most microprocessors have only one or two interrupt lines.Consequently, several devices usually are connected to the same interrupt line. Thedrawback to this configuration is that the overhead process
  • 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 General Purpose I/O (GPIO)
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