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PCA9670

Selection guide

Datasheet

PCA9670
(Product Specification)
17-Jul-07, 28 pages, 161 kB

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PCA9670 - Remote 8-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 PCA9670 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 PCA9670 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 25 mA LEDs on at the same time and more device addresses (64 versus 8) are available to allow many more devices on the bus without address conflicts.

The difference between the PCA9670 and the PCF8574 is that the interrupt output on the PCF8574 is replaced by a RESET input on the PCA9670.

The devices consist of an 8-bit quasi-bidirectional port and an I2C-bus interface. The PCA9670 have low current consumption and include 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 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 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: SO16, TSSOP16, HVQFN16

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Products/packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarkingECCN
PCA9670BSPCA9670BS,1189352 827 14118Volume productionSOT758-1
(HVQFN16) 		Reel Pack, SMD, 13"Standard Marking
PCA9670DPCA9670D,5129352 827 15512Volume productionSOT162-1
(SO16) 		Tube Dry PackStandard Marking
PCA9670DPCA9670D,5189352 827 15518Volume productionSOT162-1
(SO16) 		Reel Dry Pack, SMD, 13"Standard Marking
PCA9670PWPCA9670PW,1129352 827 16112Volume productionSOT403-1
(TSSOP16) 		TubeStandard Marking
PCA9670PWPCA9670PW,1189352 827 16118Volume productionSOT403-1
(TSSOP16) 		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
PCA9670BSPCA9670BS,118PCA9670BS
Always Pb-free
PCA9670DPCA9670D,512PCA9670D
Always Pb-free
PCA9670DPCA9670D,518PCA9670D
Always Pb-free
PCA9670PWPCA9670PW,112PCA9670PW
Always Pb-free
PCA9670PWPCA9670PW,118PCA9670PW
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
PCA9670BS9352 827 14118  PCA9670BS,118        not available
PCA9670D9352 827 15512  PCA9670D,512        not available
PCA9670D9352 827 15518  PCA9670D,518  NADIGI-KEY CORPORATION1,401 11/20/2009Buy onlineOrder samples
    NAFUTURE ELECTRONICS200 11/19/2009Buy online 
PCA9670PW9352 827 16112  PCA9670PW,112  NADIGI-KEY CORPORATION465 11/20/2009Buy onlinenot available
PCA9670PW9352 827 16118  PCA9670PW,118  NAMOUSER ELECTRONICS175 11/20/2009Buy onlineOrder samples
    NAMOUSER ELECTRONICS175 11/20/2009Buy online 
    NAFUTURE ELECTRONICS35 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
PCA9670BSSOT758-1
(HVQFN16)		-40~85Fast Mode Plus 30 mA SDA outputs for 4000 pF bus8no0.110002.3~5.5yes2564200yes
PCA9670DSOT162-1
(SO16)		-40~85Fast Mode Plus 30 mA SDA outputs for 4000 pF bus8no0.110002.3~5.5yes2564200yes
PCA9670PWSOT403-1
(TSSOP16)		-40~85Fast Mode Plus 30 mA SDA outputs for 4000 pF bus8no0.110002.3~5.5yes2564200yes


Similar products
PCA9670 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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