Datasheet Texas Instruments PCF8574DGVR — 数据表
| 制造商 | Texas Instruments |
| 系列 | PCF8574 |
| 零件号 | PCF8574DGVR |
用于I2C总线20-TVSOP -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
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价格
状态
| Lifecycle Status | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes |
打包
| Pin | 20 |
| Package Type | DGV |
| Industry STD Term | TVSOP |
| JEDEC Code | R-PDSO-G |
| Package QTY | 2000 |
| Carrier | LARGE T&R |
| Device Marking | PF574 |
| Width (mm) | 4.4 |
| Length (mm) | 5 |
| Thickness (mm) | 1.05 |
| Pitch (mm) | .4 |
| Max Height (mm) | 1.2 |
| Mechanical Data | 下载 |
参数化
| I2C Address | 0100 xxx |
| Max Frequency | 100 kHz |
| Number of I/Os | 8 |
| Operating Temperature Range | -40 to 85 C |
| Package Group | TVSOP |
| Rating | Catalog |
| VCC(Max) | 6 V |
| VCC(Min) | 2.5 V |
| Voltage Nodes | 5,3.3 V |
| fSCLK(Max) | 0.1 MHz |
生态计划
| RoHS | Compliant |
应用须知
- Improving System Interrupt Management Using the PCF8574 and PCF8574A I/O ExpandePDF, 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 TCA6507PDF, 109 Kb, 档案已发布: Nov 30, 2007
- Choosing the Correct I2C Device for New DesignsPDF, 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 RepeatersPDF, 116 Kb, 档案已发布: May 15, 2015
TCA9617 Maximum Allowed Frequency on I2C Bus Using Repeaters - I2C Bus Pull-Up Resistor CalculationPDF, 157 Kb, 档案已发布: Feb 13, 2015
- Understanding the I2C BusPDF, 124 Kb, 档案已发布: Jun 30, 2015
模型线
系列: PCF8574 (18)
制造商分类
- Semiconductors > Interface > I2C > I2C General Purpose I/O (GPIO)