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PCF8574P

Description
8 I/O, PIA-GENERAL PURPOSE, PDIP16
CategoryThe embedded processor and controller    Microcontrollers and processors   
File Size806KB,33 Pages
ManufacturerNXP
Websitehttps://www.nxp.com
Environmental Compliance
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PCF8574P Overview

8 I/O, PIA-GENERAL PURPOSE, PDIP16

PCF8574P Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerNXP
Parts packaging codeDIP
package instructionDIP, DIP16,.3
Contacts16
Reach Compliance Codeunknow
ECCN codeEAR99
maximum clock frequency0.1 MHz
External data bus width1
JESD-30 codeR-PDIP-T16
JESD-609 codee4
length21.6 mm
Number of digits8
Number of I/O lines8
Number of ports1
Number of terminals16
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeDIP
Encapsulate equivalent codeDIP16,.3
Package shapeRECTANGULAR
Package formIN-LINE
Peak Reflow Temperature (Celsius)NOT SPECIFIED
power supply3/5 V
Certification statusNot Qualified
Maximum seat height4.7 mm
Maximum slew rate0.1 mA
Maximum supply voltage6 V
Minimum supply voltage2.5 V
Nominal supply voltage5 V
surface mountNO
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceNickel/Palladium/Gold (Ni/Pd/Au)
Terminal formTHROUGH-HOLE
Terminal pitch2.54 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width7.62 mm
uPs/uCs/peripheral integrated circuit typePARALLEL IO PORT, GENERAL PURPOSE
PCF8574; PCF8574A
Remote 8-bit I/O expander for I
2
C-bus with interrupt
Rev. 5 — 27 May 2013
Product data sheet
1. General description
The PCF8574/74A provides general-purpose remote I/O expansion via the two-wire
bidirectional I
2
C-bus (serial clock (SCL), serial data (SDA)).
The devices consist of eight quasi-bidirectional ports, 100 kHz I
2
C-bus interface, three
hardware address inputs and interrupt output operating between 2.5 V and 6 V. The
quasi-bidirectional port can be independently assigned as an input to monitor interrupt
status or keypads, or as an output to activate indicator devices such as LEDs. System
master can read from the input port or write to the output port through a single register.
The low current consumption of 2.5
A
(typical, static) is great for mobile applications and
the latched output ports directly drive LEDs.
The PCF8574 and PCF8574A are identical, except for the different fixed portion of the
slave address. The three hardware address pins allow eight of each device to be on the
same I
2
C-bus, so there can be up to 16 of these I/O expanders PCF8574/74A together on
the same I
2
C-bus, supporting up to 128 I/Os (for example, 128 LEDs).
The active LOW open-drain interrupt output (INT) can be connected to the interrupt logic
of the microcontroller and is activated when any input state differs from its corresponding
input port register state. It is used to indicate to the microcontroller that an input state has
changed and the device needs to be interrogated without the microcontroller continuously
polling the input register via the I
2
C-bus.
The internal Power-On Reset (POR) initializes the I/Os as inputs with a weak internal
pull-up 100
A
current source.
2. Features and benefits
I
2
C-bus to parallel port expander
100 kHz I
2
C-bus interface (Standard-mode I
2
C-bus)
Operating supply voltage 2.5 V to 6 V with non-overvoltage tolerant I/O held to V
DD
with 100
A
current source
8-bit remote I/O pins that default to inputs at power-up
Latched outputs directly drive LEDs
Total package sink capability of 80 mA
Active LOW open-drain interrupt output
Eight programmable slave addresses using three address pins
Low standby current (2.5
A
typical)
40 C
to +85
C
operation
ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per
JESD22-C101

PCF8574P Related Products

PCF8574P PCF8574AP PCF8574AT/3 PCF8574T-3.518 PCF8574TS/3
Description 8 I/O, PIA-GENERAL PURPOSE, PDIP16 8 I/O, PIA-GENERAL PURPOSE, PDSO16 8 I/O, PIA-GENERAL PURPOSE, PDSO16 8 I/O, PIA-GENERAL PURPOSE, PDSO16 8 I/O, PIA-GENERAL PURPOSE, PDSO20
Number of ports 1 1 1 1 1
Number of terminals 16 16 16 16 20
Maximum operating temperature 85 °C 85 °C 85 °C 85 Cel 85 °C
Minimum operating temperature -40 °C -40 °C -40 °C -40 Cel -40 °C
surface mount NO NO YES Yes YES
Temperature level INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL
Terminal form THROUGH-HOLE THROUGH-HOLE GULL WING GULL WING GULL WING
Terminal location DUAL DUAL DUAL pair DUAL
Is it lead-free? Lead free Lead free Lead free - Lead free
Is it Rohs certified? conform to conform to conform to - conform to
Maker NXP NXP NXP - NXP
Parts packaging code DIP DIP SOIC - SSOP
package instruction DIP, DIP16,.3 DIP, DIP16,.3 SOP, SOP16,.4 - LSSOP, SSOP20,.25
Contacts 16 16 16 - 20
Reach Compliance Code unknow unknow compli - compli
ECCN code EAR99 EAR99 EAR99 - EAR99
JESD-30 code R-PDIP-T16 R-PDIP-T16 R-PDSO-G16 - R-PDSO-G20
JESD-609 code e4 e4 e4 - e4
length 21.6 mm 21.6 mm 10.3 mm - 6.5 mm
Number of digits 8 8 8 - 8
Number of I/O lines 8 8 8 - 8
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY - PLASTIC/EPOXY
encapsulated code DIP DIP SOP - LSSOP
Encapsulate equivalent code DIP16,.3 DIP16,.3 SOP16,.4 - SSOP20,.25
Package shape RECTANGULAR RECTANGULAR RECTANGULAR - RECTANGULAR
Package form IN-LINE IN-LINE SMALL OUTLINE - SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius) NOT SPECIFIED NOT SPECIFIED 260 - 260
power supply 3/5 V 3/5 V 3/5 V - 3/5 V
Certification status Not Qualified Not Qualified Not Qualified - Not Qualified
Maximum seat height 4.7 mm 4.7 mm 2.65 mm - 1.5 mm
Maximum supply voltage 6 V 6 V 6 V - 6 V
Minimum supply voltage 2.5 V 2.5 V 2.5 V - 2.5 V
Nominal supply voltage 5 V 5 V 5 V - 5 V
technology CMOS CMOS CMOS - CMOS
Terminal surface Nickel/Palladium/Gold (Ni/Pd/Au) Nickel/Palladium/Gold (Ni/Pd/Au) NICKEL PALLADIUM GOLD - Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal pitch 2.54 mm 2.54 mm 1.27 mm - 0.65 mm
Maximum time at peak reflow temperature NOT SPECIFIED NOT SPECIFIED 30 - 40
width 7.62 mm 7.62 mm 7.5 mm - 4.4 mm
uPs/uCs/peripheral integrated circuit type PARALLEL IO PORT, GENERAL PURPOSE PARALLEL IO PORT, GENERAL PURPOSE PARALLEL IO PORT, GENERAL PURPOSE - PARALLEL IO PORT, GENERAL PURPOSE
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