PCF8574P NXP Semiconductors, PCF8574P Datasheet

PCF8574P

Manufacturer Part Number
PCF8574P
Description
Manufacturer
NXP Semiconductors
Datasheet

Specifications of PCF8574P

Operating Temperature (min)
-40C
Operating Temperature Classification
Industrial
Operating Temperature (max)
85C
Package Type
PDIP
Rad Hardened
No
Lead Free Status / Rohs Status
Compliant

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Product specification
Supersedes data of 2002 Jul 29
DATA SHEET
PCF8574
Remote 8-bit I/O expander for
I
2
C-bus
INTEGRATED CIRCUITS
2002 Nov 22

Related parts for PCF8574P

PCF8574P Summary of contents

Page 1

DATA SHEET PCF8574 Remote 8-bit I/O expander for 2 I C-bus Product specification Supersedes data of 2002 Jul 29 INTEGRATED CIRCUITS 2002 Nov 22 ...

Page 2

Philips Semiconductors Remote 8-bit I/O expander for I CONTENTS 1 FEATURES 2 GENERAL DESCRIPTION 3 ORDERING INFORMATION 4 BLOCK DIAGRAM 5 PINNING 5.1 DIP16 and SO16 packages 5.2 SSOP20 package 6 CHARACTERISTICS OF THE I 6.1 Bit transfer 6.2 Start ...

Page 3

... DIP16, or space-saving SO16 or SSOP20 packages. 2 GENERAL DESCRIPTION The PCF8574 is a silicon CMOS circuit. It provides general purpose remote I/O expansion for most microcontroller families via the two-line bidirectional bus (I 3 ORDERING INFORMATION TYPE NUMBER NAME PCF8574P; DIP16 PCF8574AP PCF8574T; SO16 PCF8574AT PCF8574TS; SSOP20 PCF8574ATS 2002 Nov 22 ...

Page 4

Philips Semiconductors Remote 8-bit I/O expander for I 4 BLOCK DIAGRAM handbook, full pagewidth 13 INT SCL 15 SDA Fig.1 Block diagram (pin numbers apply to DIP16 ...

Page 5

... INT 13 SCL 14 SDA handbook, halfpage PCF8574P PCF8574AP MBD979 Fig.2 Pin configuration (DIP16). 2002 Nov 22 2 C-bus address input 0 address input 1 address input 2 quasi-bidirectional I/O 0 quasi-bidirectional I/O 1 quasi-bidirectional I/O 2 quasi-bidirectional I/O 3 supply ground quasi-bidirectional I/O 4 quasi-bidirectional I/O 5 quasi-bidirectional I/O 6 quasi-bidirectional I/O 7 interrupt output (active LOW) ...

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Philips Semiconductors Remote 8-bit I/O expander for I 5.2 SSOP20 package SYMBOL PIN INT 1 SCL 2 n.c. 3 SDA n. n.c. 13 ...

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Philips Semiconductors Remote 8-bit I/O expander for I 6 CHARACTERISTICS OF THE I 2 The I C-bus is for 2-way, 2-line communication between different ICs or modules. The two lines are a serial data line (SDA) and a serial clock ...

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Philips Semiconductors Remote 8-bit I/O expander for I 6.4 Acknowledge The number of data bytes transferred between the start and the stop conditions from transmitter to receiver is not limited. Each byte of eight bits is followed by one acknowledge ...

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Philips Semiconductors Remote 8-bit I/O expander for I 7 FUNCTIONAL DESCRIPTION handbook, full pagewidth write pulse data from shift register power-on reset read pulse data to shift register 7.1 Addressing For addressing see Figs 10, 11 and 12. slave address ...

Page 10

Acrobat reader. white to force landscape pages to be ... SCL slave address (PCF8574) SDA S 0 ...

Page 11

Acrobat reader. white to force landscape pages to be ... slave address (PCF8574) SDA start condition READ FROM ...

Page 12

Philips Semiconductors Remote 8-bit I/O expander for I 7.2 Interrupt output The PCF8574 provides an open-drain output (INT) which can be fed to a corresponding input of the microcontroller (see Figs 13 and 14). This gives these chips a type ...

Page 13

Acrobat reader. white to force landscape pages to be ... slave address (PCF8574A) SDA start condition SCL ...

Page 14

Philips Semiconductors Remote 8-bit I/O expander for I 8 LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 60134). SYMBOL V supply voltage DD V input voltage input current output current O ...

Page 15

Philips Semiconductors Remote 8-bit I/O expander for I SYMBOL PARAMETER I/Os V LOW level input voltage IL V HIGH level input voltage IH I maximum allowed input IHL(max) current through protection diode I LOW level output current OL I HIGH ...

Page 16

Philips Semiconductors Remote 8-bit I/O expander for C-BUS TIMING CHARACTERISTICS SYMBOL 2 I C-bus timing (see Fig.16; note 1) f SCL clock frequency SCL t tolerable spike width on bus SW t bus free time BUF ...

Page 17

Philips Semiconductors Remote 8-bit I/O expander for I 12 PACKAGE OUTLINES DIP16: plastic dual in-line package; 16 leads (300 mil pin 1 index 1 DIMENSIONS (inch dimensions are derived from the original mm dimensions ...

Page 18

Philips Semiconductors Remote 8-bit I/O expander for I SO16: plastic small outline package; 16 leads; body width 7 pin 1 index 1 e DIMENSIONS (inch dimensions are derived from the original mm dimensions) A UNIT A ...

Page 19

Philips Semiconductors Remote 8-bit I/O expander for I SSOP20: plastic shrink small outline package; 20 leads; body width 4 pin 1 index 1 e DIMENSIONS (mm are the original dimensions) A UNIT ...

Page 20

Philips Semiconductors Remote 8-bit I/O expander for I 13 SOLDERING 13.1 Introduction This text gives a very brief insight to a complex technology. A more in-depth account of soldering ICs can be found in our “Data Handbook IC26; Integrated Circuit ...

Page 21

Philips Semiconductors Remote 8-bit I/O expander for I 13.4 Suitability of IC packages for wave, reflow and dipping soldering methods MOUNTING Through-hole mount DBS, DIP, HDIP, SDIP, SIL Surface mount BGA, LBGA, LFBGA, SQFP, TFBGA, VFBGA not suitable HBCC, HBGA, ...

Page 22

Philips Semiconductors Remote 8-bit I/O expander for I 14 DATA SHEET STATUS DATA SHEET PRODUCT LEVEL (1) STATUS STATUS I Objective data Development II Preliminary data Qualification III Product data Production Notes 1. Please consult the most recently issued data ...

Page 23

Philips Semiconductors Remote 8-bit I/O expander for PURCHASE OF PHILIPS I Purchase of Philips I components in the I Philips. This specification can be ordered using the code 9398 393 40011. 2002 Nov 22 2 C-bus C ...

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Philips Semiconductors – a worldwide company Contact information For additional information please visit http://www.semiconductors.philips.com. For sales offices addresses send e-mail to: sales.addresses@www.semiconductors.philips.com. © Koninklijke Philips Electronics N.V. 2002 All rights are reserved. Reproduction in whole or in part is prohibited ...

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