|
|
PDF PCF8574 Data sheet ( Hoja de datos )
| Número de pieza | PCF8574 | |
| Descripción | Remote 8-bit I/O expander | |
| Fabricantes | Philips | |
| Logotipo |  |
|
 1. 8-Bit I/O Expander - TI  Hay una vista previa y un enlace de descarga de PCF8574 (archivo pdf) en la parte inferior de esta página. Total 24 Páginas | ||
|
No Preview Available !
INTEGRATED CIRCUITS
DATA SHEET
PCF8574
Remote 8-bit I/O expander for
I2C-bus
Product specification
Supersedes data of 2002 Jul 29
2002 Nov 22
1 page  
Philips Semiconductors
Remote 8-bit I/O expander for I2C-bus
5 PINNING
5.1 DIP16 and SO16 packages
SYMBOL
A0
A1
A2
P0
P1
P2
P3
VSS
P4
P5
P6
P7
INT
SCL
SDA
VDD
PIN
1 address input 0
2 address input 1
3 address input 2
4 quasi-bidirectional I/O 0
5 quasi-bidirectional I/O 1
6 quasi-bidirectional I/O 2
7 quasi-bidirectional I/O 3
8 supply ground
9 quasi-bidirectional I/O 4
10 quasi-bidirectional I/O 5
11 quasi-bidirectional I/O 6
12 quasi-bidirectional I/O 7
13 interrupt output (active LOW)
14 serial clock line
15 serial data line
16 supply voltage
DESCRIPTION
Product specification
PCF8574
handbook, halfpage
A0 1
16 VDD
A1 2
15 SDA
A2 3
14 SCL
P0 4 PCF8574P 13 INT
P1 5 PCF8574AP 12 P7
P2 6
11 P6
P3 7
VSS 8
10 P5
9 P4
MBD979
Fig.2 Pin configuration (DIP16).
handbook, halfpage
A0 1
A1 2
A2 3
P0 4
P1 5
P2 6
P3 7
VSS 8
16 VDD
15 SDA
14 SCL
PCF8574T 13 INT
PCF8574AT 12 P7
11 P6
10 P5
9 P4
MCE001
Fig.3 Pin configuration (SO16).
2002 Nov 22
5
5 Page 
This text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here in
_white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here inThis text is here in
white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader. white to force landscape pages to be ...
slave address (PCF8574)
data from port
SDA
S 0 1 0 0 A2 A1 A0 1 A
DATA 1
READ FROM
PORT
start condition
R/W acknowledge
from slave
DATA INTO
PORT
INT
t iv
DATA 2
t ph
t ir
DATA 3
data from port
A
acknowledge
from slave
DATA 4
t ps
t ir
DATA 4
1P
stop
condition
MBD975
A LOW-to-HIGH transition of SDA, while SCL is HIGH is defined as the stop condition (P). Transfer of data can be stopped at any moment by a stop condition. When this occurs, data present
at the last acknowledge phase is valid (output mode). Input data is lost.
Fig.12 READ mode (input).
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet PCF8574.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| PCF8570 | 256 x 8-bit static low-voltage RAM with I2C-bus interface |  NXP Semiconductors |
| PCF8570C | 128 x 8 Bit / 256 x 8 Bit Static Ram with IC Bus Interface | Philips |
| PCF8570P | 256 x 8-bit static low-voltage RAM with I2C-bus interface | NXP Semiconductors |
| PCF8570T | 256 x 8-bit static low-voltage RAM with I2C-bus interface | NXP Semiconductors |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |