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PCA9672

Selection guide

Datasheet

PCA9672
(Product Specification)
06-Jul-07, 27 pages, 164 kB

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PCA9672 - Remote 8-bit I/O expander for Fm I²C-bus with interrupt and reset

General description
Features
Products/packages
Quality/reliability/chemical content
Pricing/ordering/availability
Samples
Discontinued information
Applications
Block diagrams/pinning
Design support
Parametrics/similar products
Print/email
Disclaimers
All information hereunder is subject to the subsequent disclaimers

General description

The PCA9672 provides general purpose remote I/O expansion for most microcontroller families via the two-line bidirectional bus (I2C-bus) and is a part of the Fast-mode Plus family.

The PCA9672 is a drop-in upgrade for the PCF8574 providing higher Fast-mode Plus (Fm+) I2C-bus speeds (1 MHz versus 400 kHz) so that the output can support PWM dimming of LEDs, higher I2C-bus drive (30 mA versus 3 mA) so that many more devices can be on the bus without the need for bus buffers, higher total package sink capacity (200 mA versus 100 mA) that supports having all LEDs on at the same time and more device addresses (16 versus 8) are available to allow many more devices on the bus without address conflicts.

The difference between the PCA9672 and the PCF8574 is that the A2 address pin is replaced by the RESET input on the PCA9672.

The device consists of an 8-bit quasi-bidirectional port and an I2C-bus interface. The PCA9672 has low current consumption and include latched outputs with 25 mA high current drive capability for directly driving LEDs.

The PCA9672 possesses an interrupt line (INT) that can be connected to the interrupt logic of the microcontroller. By sending an interrupt signal on this line, the remote I/O can inform the microcontroller if there is incoming data on its ports without having to communicate via the I2C-bus.

The internal Power-On Reset (POR), hardware reset pin (RESET), or Software Reset sequence initializes the I/Os as inputs.

Features

  • 1 MHz I2C-bus interface
  • Compliant with the I2C-bus Fast and Standard modes
  • SDA with 30 mA sink capability for 4000 pF buses
  • 2.3 V to 5.5 V operation with 5.5 V tolerant I/Os
  • 8-bit remote I/O pins that default to inputs at power-up
  • Latched outputs with 25 mA sink capability for directly driving LEDs
  • Total package sink capability of 200 mA
  • Active LOW open-drain interrupt output
  • 16 programmable slave addresses using 2 address pins
  • Readable device ID (manufacturer, device type, and revision) Low standby current
  • -40 Cel to +85 Cel operation
  • ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101
  • Latch-up testing is done to JEDEC standard JESD78 which exceeds 100 mA
  • Packages offered: SO16, TSSOP16, HVQFN16

Products/packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarkingECCN
PCA9672BSPCA9672BS,1189352 827 45118Volume productionSOT758-1
(HVQFN16)
Reel Pack, SMD, 13"Standard Marking
PCA9672DPCA9672D,5129352 827 46512Volume productionSOT162-1
(SO16)
Tube Dry PackStandard Marking
PCA9672DPCA9672D,5189352 827 46518Volume productionSOT162-1
(SO16)
Reel Dry Pack, SMD, 13"Standard Marking
PCA9672PWPCA9672PW,1129352 827 47112Volume productionSOT403-1
(TSSOP16)
TubeStandard Marking
PCA9672PWPCA9672PW,1189352 827 47118Volume productionSOT403-1
(TSSOP16)
Reel Pack, SMD, 13"Standard Marking

Quality/reliability/chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree Conversion dateRHFIRF (FIT)MTBF (hours)MSL
PCA9672BSPCA9672BS,118PCA9672BS
Always Pb-free
PCA9672DPCA9672D,512PCA9672D
Always Pb-free
PCA9672DPCA9672D,518PCA9672D
Always Pb-free
PCA9672PWPCA9672PW,112PCA9672PW
Always Pb-free
PCA9672PWPCA9672PW,118PCA9672PW
Always Pb-free

Quality and reliability disclaimer

Pricing/ordering/availability

Type numberOrdering code(12NC)Orderable part numberIndicative price/unit($)RegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
PCA9672BS9352 827 45118  PCA9672BS,118        Order samples
PCA9672D9352 827 46512  PCA9672D,512        not available
PCA9672D9352 827 46518  PCA9672D,518  NAMOUSER ELECTRONICS89 11/20/2009Buy onlineOrder samples
    NADIGI-KEY CORPORATION1,325 11/20/2009Buy online 
    NAMOUSER ELECTRONICS89 11/20/2009Buy online 
    NAFUTURE ELECTRONICS1,000 11/19/2009Buy online 
PCA9672PW9352 827 47112  PCA9672PW,112  NADIGI-KEY CORPORATION2,129 11/20/2009Buy onlinenot available
PCA9672PW9352 827 47118  PCA9672PW,118  NAMOUSER ELECTRONICS45 11/20/2009Buy onlineOrder samples
    NAMOUSER ELECTRONICS45 11/20/2009Buy online 
    NAFUTURE ELECTRONICS50 11/19/2009Buy online 

Applications

  • LED signs and displays
  • Servers
  • Industrial control
  • Medical equipment
  • PLCs
  • Cellular telephones
  • Gaming machines
  • Instrumentation and test measurement


Related applications
Intelligent washing machine
PCI analog/DVB-T stereo TV receiver
LCD TV - MMS functionality
Set-top box - MMS functionality

Block diagrams/pinning

Parametrics/similar products

Type numberPackageOperating
temp.(Cel)
I²C-bus
interface
# of BitsInterrupt outputSource Current per bit(mA)I²C-bus(kHz)Operating voltage(VDC)Weak Pull-Up Current Source Max Sink Current per bit(mA)# of AddressesMax Sink Current
per package(mA)
Reset input pin
PCA9672BSSOT758-1
(HVQFN16)
-40~85Fast Mode Plus 30 mA SDA outputs for 4000 pF bus8yes0.110002.3~5.5yes2516200yes
PCA9672DSOT162-1
(SO16)
-40~85Fast Mode Plus 30 mA SDA outputs for 4000 pF bus8yes0.110002.3~5.5yes2516200yes
PCA9672PWSOT403-1
(TSSOP16)
-40~85Fast Mode Plus 30 mA SDA outputs for 4000 pF bus8yes0.110002.3~5.5yes2516200yes


Similar products
PCA9672 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.