Datasheet

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