PHILIPS PCF8575 Remote 16-bit I/O Expander for I2C-Bus User Manual
Summary
A product specification for the PCF8575 remote 16-bit I/O expander for I2C-bus. The device features a 16-bit quasi-bidirectional port, 400 kbits/s FAST I2C-bus interface, open-drain interrupt output, and latched outputs with high current drive capability for directly driving LEDs. Operating supply voltage ranges from 2.5V to 5.5V with low standby current consumption. The manual covers I2C bus characteristics, functional description, limiting values, timing characteristics, and soldering guidelines. Designed for embedded systems engineers and developers expanding I/O capabilities in microcontroller-based applications.
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INTEGRATED CIRCUITS
DATA SHEET
PCF8575 Remote 16-bit I/O expander for I2C-bus
Product specification Apr
Supersedes data of 1999 Feb File under Integrated Circuits, IC12
Page Summary Contents For PHILIPS PCF8575 Remote 16-bit I/O Expander for I2C-Bus User Manual
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INTEGRATED CIRCUITS DATA SHEET PCF8575 Remote 16-bit I/O expander for I2C-bus Product specification Apr Supersedes data of 1999 Feb File under Integrated Circuits, IC12
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Philips Semiconductors Product specification Remote 16-bit I/O expander for I2C-bus PCF8575 CONTENTS FEATURES GENERAL DESCRIPTION ORDERING INFORMATION BLOCK DIAGRAM PINNING CHARACTERISTICS OF THE I2C-...
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Philips Semiconductors Product specification Remote 16-bit I/O expander for I2C-bus PCF8575 FEATURES Operating supply voltage 2.5 to 5.5 Low standby current consumption of 10 µA maximum I2C-bus to par...
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Philips Semiconductors Product specification Remote 16-bit I/O expander for I2C-bus PCF8575 BLOCK DIAGRAM handbook, full pagewidth INTERRUPT INT LP FILTER LOGIC PCF8575 P00 to P07 INPUT I2C-BUS 4 to 1...
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Philips Semiconductors Product specification Remote 16-bit I/O expander for I2C-bus PCF8575 PINNING SYMBOL PIN DESCRIPTION INT interrupt output (active LOW) A1 address input A2 address input P00 quasi...
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Philips Semiconductors Product specification Remote 16-bit I/O expander for I2C-bus PCF8575 CHARACTERISTICS OF THE I2C-BUS 6.4 Acknowledge The I2C-bus is for bidirectional, 2-line communication The nu...
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Philips Semiconductors Product specification Remote 16-bit I/O expander for I2C-bus PCF8575 handbook, full pagewidth SDA SDA SCL SCL START condition STOP condition MBC622 Fig.4 Definition of START and...
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Philips Semiconductors Product specification Remote 16-bit I/O expander for I2C-bus PCF8575 FUNCTIONAL DESCRIPTION 7.1 Quasi-bidirectional I/Os The PCF8575’s 16 ports (see Fig.7) are entirely independ...
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Philips Semiconductors Product specification Remote 16-bit I/O expander for I2C-bus PCF8575 7.3 Reading from a port (input mode) 7.5 Interrupt All ports programmed as input should be set to logic 1. T...
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Philips Semiconductors Product specification Remote 16-bit I/O expander for I2C-bus PCF8575 handbook, full pagewidth PCF8575 PCF8575 PCF8575 (1) (2)VDD (8) INT INT INT MICROCOMPUTER MGL544 Fig.12 Appl...
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Philips Semiconductors Product specification Remote 16-bit I/O expander for I2C-bus PCF8575 LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134); note 1. SYMBOL PARAMETER MI...
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Philips Semiconductors Product specification Remote 16-bit I/O expander for I2C-bus PCF8575 SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT IL2 leakage current on all other signal VI VDD or VSS −10 +1...
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Philips Semiconductors Product specification Remote 16-bit I/O expander for I2C-bus PCF8575 I2C-BUS TIMING CHARACTERISTICS See Fig.13 and note 1. SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT f SCL SCL c...
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Philips Semiconductors Product specification Remote 16-bit I/O expander for I2C-bus PCF8575 DEVICE PROTECTION handbook, full pagewidth substrate VSS MGR789 Fig.14 Device protection diagram.
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Philips Semiconductors Product specification Remote 16-bit I/O expander for I2C-bus PCF8575 PACKAGE OUTLINE SSOP24: plastic shrink small outline package; 24 leads; body width 5.3 mm SOT340-1 pin 1 ind...
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Philips Semiconductors Product specification Remote 16-bit I/O expander for I2C-bus PCF8575 SOLDERING Use a double-wave soldering method comprising a turbulent wave with high upward pressure followed ...
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Philips Semiconductors Product specification Remote 16-bit I/O expander for I2C-bus PCF8575 14.5 Suitability of surface mount IC packages for wave and reflow soldering methods SOLDERING METHOD PACKAGE...
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Philips Semiconductors Product specification Remote 16-bit I/O expander for I2C-bus PCF8575 DEFINITIONS Data sheet status Objective specification This data sheet contains target or goal specifications...
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Philips Semiconductors Product specification Remote 16-bit I/O expander for I2C-bus PCF8575 NOTES
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Philips Semiconductors Product specification Remote 16-bit I/O expander for I2C-bus PCF8575 NOTES
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Philips Semiconductors Product specification Remote 16-bit I/O expander for I2C-bus PCF8575 NOTES
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Philips Semiconductors – a worldwide company Argentina: see South America Netherlands: Postbus 90050, 5600 PB EINDHOVEN, Bldg. VB, Tel. +31 82785, Fax. +31 Australia: 34 Waterloo Road, NORTH RYDE, NSW...
Manual Details
| Brand | Philips |
|---|---|
| Pages | 24 |
| File Size | 116.05 KB |
| Published | July 04, 2026 |
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Frequently Asked Questions
What is the operating voltage range of the PCF8575?
2.5 to 5.5 V
How many devices can be addressed on the I²C bus?
Up to 8 devices using 3 hardware address pins
What is the maximum I²C bus speed supported?
400 kbits/s FAST I²C-bus
How many I/O pins does it provide?
16-bit remote I/O port
What package is the PCF8575 available in?
SSOP24 plastic shrink small outline package