Philips Semiconductors
Product specification
Remote 16-bit I/O expander for I2C-bus
PCF8575
CONTENTS
1
2
3
4
5
6
FEATURES
GENERAL DESCRIPTION
ORDERING INFORMATION
BLOCK DIAGRAM
PINNING
CHARACTERISTICS OF THE I2C-BUS
6.1
6.2
6.3
6.4
Bit transfer
START and STOP conditions
System configuration
Acknowledge
7
FUNCTIONAL DESCRIPTION
7.1
7.2
7.3
7.4
7.5
Quasi-bidirectional I/Os
Addressing
Reading from a port (input mode)
Writing to the port (output mode)
Interrupt
8
LIMITING VALUES
9
HANDLING
10
11
12
13
14
14.1
CHARACTERISTICS
I2C-BUS TIMING CHARACTERISTICS
DEVICE PROTECTION
PACKAGE OUTLINE
SOLDERING
Introduction to soldering surface mount
packages
14.2
14.3
14.4
14.5
Reflow soldering
Wave soldering
Manual soldering
Suitability of surface mount IC packages for
wave and reflow soldering methods
15
16
17
DEFINITIONS
LIFE SUPPORT APPLICATIONS
PURCHASE OF PHILIPS I2C COMPONENTS
1999 Apr 07
2
NXP [ NXP ]
