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PCF8575

Remote 16-bit I/O expander for I2C-bus

Philips Electronics 

Philips Semiconductors

Remote 16-bit I/O expander for I2C-bus

CONTENTS

1

FEATURES

2

GENERAL DESCRIPTION

3

ORDERING INFORMATION

4

BLOCK DIAGRAM

5

PINNING

6

CHARACTERISTICS OF THE I2C-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

I2C-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 I2C COMPONENTS

Product specification

PCF8575

1999 Apr 07

2

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