PCF8575

INTEGRATED CIRCUITS DATA SHEET PCF8575 Remote 16-bit I/O expander for I2C-bus Product specification Supersedes data of 1999 Feb 25 File under Integrated Circuits, IC12 1999 Apr 07 Philips Semiconductors Product specification Remote 16-bit I/O expander for I2C-bus CONTENTS 1 2 3 4 5 6 6.1 6.2 6.3 6.4 7 7.1 7.2 7.3 7.4 7.5 8 9 10 11 12 13 14 14.1 14.2 14.3 14.4 14.5 15 16 17 FEATURES GENERAL DESCRIPTION ORDERING INFORMATION BLOCK DIAGRAM PINNING CHARACTERISTICS OF THE I2C-BUS Bit transfer START and STOP conditions System configuration Acknowledge FUNCTIONAL DESCRIPTION Quasi-bidirectional I/Os Addressing Reading from a port (input mode) Writing to the port (output mode) Interrupt LIMITING VALUES HANDLING CHARACTERISTICS I2C-BUS TIMING CHARACTERISTICS DEVICE PROTECTION PACKAGE OUTLINE SOLDERING Introduction to soldering surface mount packages Reflow soldering Wave soldering Manual soldering Suitability of surface mount IC packages for wave and reflow soldering methods DEFINITIONS LIFE SUPPORT APPLICATIONS PURCHASE OF PHILIPS I2C COMPONENTS PCF8575 1999 Apr 07 2 Philips Semiconductors Product specification Remote 16-bit I/O expander for I2C-bus 1 FEATURES PCF8575 Operating supply voltage 2.5 to 5.5 V Low standby current consumption of 10 µA maximum I2C-bus to parallel port expander 400 kbits/s FAST I2C-bus Open-drain interrupt output 16-bit remote I/O port for the I2C-bus Compatible with most microcontrollers Latched outputs with high current drive capab...