Datasheet Texas Instruments PCF8574ADGVR — Ficha de datos
| Fabricante | Texas Instruments |
| Serie | PCF8574A |
| Numero de parte | PCF8574ADGVR |
Expansor de E / S remoto de 8 bits para I2C-Bus 20-TVSOP -40 a 85
Hojas de datos
PCF8574A Remote 8-Bit I/O Expander for I2C Bus datasheet
PDF, 1.3 Mb, Revisión: F, Archivo publicado: nov 16, 2015
Extracto del documento
Precios
Estado
| Estado del ciclo de vida | Activo (Recomendado para nuevos diseños) |
| Disponibilidad de muestra del fabricante | Sí |
Embalaje
| Pin | 20 |
| Package Type | DGV |
| Industry STD Term | TVSOP |
| JEDEC Code | R-PDSO-G |
| Package QTY | 2000 |
| Carrier | LARGE T&R |
| Device Marking | PF574A |
| Width (mm) | 4.4 |
| Length (mm) | 5 |
| Thickness (mm) | 1.05 |
| Pitch (mm) | .4 |
| Max Height (mm) | 1.2 |
| Mechanical Data | Descargar |
Paramétricos
| I2C Address | 0111 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 |
Plan ecológico
| RoHS | Obediente |
Notas de aplicación
- Improving System Interrupt Management Using the PCF8574 and PCF8574A I/O ExpandePDF, 216 Kb, Archivo publicado: 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, Archivo publicado: nov 30, 2007
- Choosing the Correct I2C Device for New DesignsPDF, 87 Kb, Archivo publicado: sept 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, Archivo publicado: mayo 15, 2015
TCA9617 Maximum Allowed Frequency on I2C Bus Using Repeaters - I2C Bus Pull-Up Resistor CalculationPDF, 157 Kb, Archivo publicado: feb 13, 2015
- Understanding the I2C BusPDF, 124 Kb, Archivo publicado: jun 30, 2015
Linea modelo
Serie: PCF8574A (18)
Clasificación del fabricante
- Semiconductors > Interface > I2C > I2C General Purpose I/O (GPIO)