Datasheet Texas Instruments PCF8574ADWRG4
| Manufacturer | Texas Instruments |
| Series | PCF8574A |
| Part Number | PCF8574ADWRG4 |
Remote 8-Bit I/O Expander for I2C-Bus 16-SOIC -40 to 85
Datasheets
PCF8574A Remote 8-Bit I/O Expander for I2C Bus datasheet
PDF, 1.3 Mb, Revision: F, File published: Nov 16, 2015
Extract from the document
Prices
Status
| Lifecycle Status | Obsolete (Manufacturer has discontinued the production of the device) |
| Manufacture's Sample Availability | No |
Packaging
| Pin | 16 |
| Package Type | DW |
| Industry STD Term | SOIC |
| JEDEC Code | R-PDSO-G |
| Width (mm) | 7.5 |
| Length (mm) | 10.3 |
| Thickness (mm) | 2.35 |
| Pitch (mm) | 1.27 |
| Max Height (mm) | 2.65 |
| Mechanical Data | Download |
Parametrics
| # of I/Os | 8 |
| Approx. Price (US$) | 0.44 | 1ku |
| I2C Address | 0111 xxx |
| Max Frequency(kHz) | 100 |
| Operating Temperature Range(C) | -40 to 85 |
| Package Group | SOIC |
| Package Size: mm2:W x L (PKG) | See datasheet (PDIP) |
| Rating | Catalog |
| VCC(Max)(V) | 6 |
| VCC(Min)(V) | 2.5 |
| Voltage Nodes(V) | 5 3.3 |
| fSCLK(Max)(MHz) | 0.1 |
Eco Plan
| RoHS | Not Compliant |
| Pb Free | No |
Application Notes
- Improving System Interrupt Management Using the PCF8574 and PCF8574A I/O ExpandePDF, 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 TCA6507PDF, 109 Kb, File published: Nov 30, 2007
- Choosing the Correct I2C Device for New DesignsPDF, 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 RepeatersPDF, 116 Kb, File published: May 15, 2015
TCA9617 Maximum Allowed Frequency on I2C Bus Using Repeaters - I2C Bus Pull-Up Resistor CalculationPDF, 157 Kb, File published: Feb 13, 2015
- Understanding the I2C BusPDF, 124 Kb, File published: Jun 30, 2015
Model Line
Series: PCF8574A (18)
Manufacturer's Classification
- Semiconductors > Interface > I2C > I2C IO Expander
