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PCA9671

Selection guide

Datasheet

PCA9671
(Product Specification)
20-Dec-06, 34 pages, 196 kB

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PCA9671 - Remote 16-bit I/O expander for Fm+ I2C-bus with 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 PCA9671 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 (Fm+) family.

The PCA9671 is a drop in upgrade for the PCF8575 providing higher 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 (400 mA versus 100 mA) that supports having all 25 mA LEDs on at the same time and more device addresses (64 versus 8) to allow many more devices on the bus without address conflicts.

The difference between the PCA9671 and the PCF8575 is that the interrupt output on the PCF8575 is replaced by a RESET input on the PCA9671.

The device consists of a 16-bit quasi-bidirectional port and an I2C-bus interface. The PCA9671 has a low current consumption and includes latched outputs with 25 mA high current drive capability for directly driving LEDs. The internal Power-On Reset (POR), hardware reset pin (RESET) or software reset sequence initializes the I/Os as inputs.

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Features

  • 1 MHz I2C-bus interface
  • Compliant with the I2C-bus Fast-mode and Standard-mode
  • 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
  • 16-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 400 mA
  • Active LOW reset input
  • 64 programmable slave addresses using 3 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: SO24, SSOP24, QSOP24, TSSOP24, HVQFN24, DHVQFN24

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Products/packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarkingECCN
PCA9671BQPCA9671BQ,1189352 833 68118Volume productionSOT815-1
(DHVQFN24) 		Reel Pack, SMD, 13"Standard Marking
PCA9671BSPCA9671BS,1189352 833 69118Volume productionSOT616-1
(HVQFN24) 		Reel Pack, SMD, 13"Standard Marking
PCA9671DPCA9671D,1129352 835 51112Volume productionSOT137TubeStandard Marking
PCA9671DPCA9671D,1189352 835 51118Volume productionSOT137Reel Pack, SMD, 13"Standard Marking
PCA9671DBPCA9671DB,1129352 835 52112Volume productionSOT340-1
(SSOP24) 		TubeStandard Marking
PCA9671DBPCA9671DB,1189352 835 52118Volume productionSOT340-1
(SSOP24) 		Reel Pack, SMD, 13"Standard Marking
PCA9671DKPCA9671DK,1189352 835 53118Volume productionSOT556-1
(SSOP24) 		Reel Pack, SMD, 13"Standard Marking
PCA9671PWPCA9671PW,1129352 835 54112Volume productionSOT355-1
(TSSOP24) 		TubeStandard Marking
PCA9671PWPCA9671PW,1189352 835 54118Volume productionSOT355-1
(TSSOP24) 		Reel Pack, SMD, 13"Standard Marking

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Quality/reliability/chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree Conversion dateRHFIRF (FIT)MTBF (hours)MSL
PCA9671BQPCA9671BQ,118PCA9671BQ
Always Pb-free
PCA9671BSPCA9671BS,118PCA9671BS
Always Pb-free
PCA9671DPCA9671D,112PCA9671D
Always Pb-free
PCA9671DPCA9671D,118PCA9671D
Always Pb-free
PCA9671DBPCA9671DB,112PCA9671DB
Always Pb-free
PCA9671DBPCA9671DB,118PCA9671DB
Always Pb-free
PCA9671DKPCA9671DK,118PCA9671DK
Always Pb-free
PCA9671PWPCA9671PW,112PCA9671PW
Always Pb-free
PCA9671PWPCA9671PW,118PCA9671PW
Always Pb-free

Quality and reliability disclaimer

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Pricing/ordering/availability

Type numberOrdering code(12NC)Orderable part numberIndicative price/unit($)RegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
PCA9671BQ9352 833 68118  PCA9671BQ,118        Order samples
PCA9671BS9352 833 69118  PCA9671BS,118        Order samples
PCA9671D9352 835 51112  PCA9671D,112        not available
PCA9671D9352 835 51118  PCA9671D,118  NADIGI-KEY CORPORATION1,819 11/20/2009Buy onlineOrder samples
PCA9671DB9352 835 52112  PCA9671DB,112  NADIGI-KEY CORPORATION467 11/20/2009Buy onlinenot available
PCA9671DB9352 835 52118  PCA9671DB,118        Order samples
PCA9671DK9352 835 53118  PCA9671DK,118  NADIGI-KEY CORPORATION2,485 11/20/2009Buy onlineOrder samples
PCA9671PW9352 835 54112  PCA9671PW,112  NADIGI-KEY CORPORATION639 11/20/2009Buy onlinenot available
PCA9671PW9352 835 54118  PCA9671PW,118  NAMOUSER ELECTRONICS151 11/20/2009Buy onlineOrder samples
    NAMOUSER ELECTRONICS151 11/20/2009Buy online 
    NAFUTURE ELECTRONICS90 11/19/2009Buy online 
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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

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Block diagrams/pinning

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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
PCA9671BQSOT815-1
(DHVQFN24)		-40~85Fast Mode Plus 30 mA SDA outputs for 4000 pF bus16no0.110002.3~5.5yes2564400yes


Similar products
PCA9671 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.

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