Datasheet Texas Instruments PCF8574DWR — 数据表

制造商Texas Instruments
系列PCF8574
零件号PCF8574DWR
Datasheet Texas Instruments PCF8574DWR

用于I2C总线16-SOIC -40至85的远程8位I / O扩展器

数据表

PCF8574 Remote 8-Bit I/O Expander for I2C Bus datasheet
PDF, 1.6 Mb, 修订版: J, 档案已发布: Mar 9, 2016
从文件中提取

价格

状态

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

打包

Pin16
Package TypeDW
Industry STD TermSOIC
JEDEC CodeR-PDSO-G
Package QTY2000
CarrierLARGE T&R
Device MarkingPCF8574
Width (mm)7.5
Length (mm)10.3
Thickness (mm)2.35
Pitch (mm)1.27
Max Height (mm)2.65
Mechanical Data下载

参数化

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

生态计划

RoHSCompliant

应用须知

  • Improving System Interrupt Management Using the PCF8574 and PCF8574A I/O Expande
    PDF, 216 Kb, 档案已发布: 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, 档案已发布: Nov 30, 2007
  • Choosing the Correct I2C Device for New Designs
    PDF, 87 Kb, 档案已发布: 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, 档案已发布: May 15, 2015
    TCA9617 Maximum Allowed Frequency on I2C Bus Using Repeaters
  • I2C Bus Pull-Up Resistor Calculation
    PDF, 157 Kb, 档案已发布: Feb 13, 2015
  • Understanding the I2C Bus
    PDF, 124 Kb, 档案已发布: Jun 30, 2015

模型线

制造商分类

  • Semiconductors > Interface > I2C > I2C General Purpose I/O (GPIO)