PCA9554_9554A

8-bit I2C-bus and SMBus I/O port with interrupt


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Product description

The PCA9554 and PCA9554A are 16-pin CMOS devices that provide 8 bits of General Purpose parallel Input/Output (GPIO) expansion for I²C-bus/SMBus applications and were developed to enhance the NXP Semiconductors family of I²C-bus I/O expanders. The improvements include higher drive capability, 5 V I/O tolerance, lower supply current, individual I/O configuration, 400 kHz clock frequency, and smaller packaging. I/O expanders provide a simple solution when additional I/O is needed for ACPI power switches, sensors, push buttons, LEDs, fans, etc.

The PCA9554/PCA9554A consist of an 8-bit Configuration register (Input or Output selection); 8-bit Input Port register, 8-bit Output Port register and an 8-bit Polarity Inversion register (active HIGH or active LOW operation). The system master can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits. The data for each input or output is kept in the corresponding Input Port or Output Port register. The polarity of the read register can be inverted with the Polarity Inversion register. All registers can be read by the system master. Although pin-to-pin and I²C-bus address compatible with the PCF8574 series, software changes are required due to the enhancements and are discussed in Application Note AN469.

The PCA9554/PCA9554A open-drain interrupt output is activated when any input state differs from its corresponding Input Port register state and is used to indicate to the system master that an input state has changed. The power-on reset sets the registers to their default values and initializes the device state machine.

Three hardware pins (A0, A1, A2) vary the fixed I²C-bus address and allow up to eight devices to share the same I²C-bus/SMBus. The PCA9554A is identical to the PCA9554 except that the fixed I²C-bus address is different allowing up to sixteen of these devices (eight of each) on the same I²C-bus/SMBus.

Features

  • Operating power supply voltage range of 2.3 V to 5.5 V
  • 5 V tolerant I/Os
  • Polarity Inversion register
  • Active LOW interrupt output
  • Low standby current
  • Noise filter on SCL/SDA inputs
  • No glitch on power-up
  • Internal power-on reset
  • 8 I/O pins which default to 8 inputs
  • 0 Hz to 400 kHz clock frequency
  • 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: DIP16, SO16, SSOP16, SSOP20, TSSOP16, HVQFN16 (2 versions: 4 x 4 x 0.85 mm and 3 x 3 x 0.85 mm), and bare die
All information on this product information page is subject to the subsequent disclaimers:
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Show functional diagram

Block diagram: PCA9554ABS, PCA9554AD, PCA9554ADB, PCA9554AN, PCA9554APW, PCA9554ATS, PCA9554BS, PCA9554D, PCA9554DB, PCA9554N, PCA9554PW, PCA9554TS
Block diagram: PCA9554ABS, PCA9554AD, PCA9554ADB, PCA9554AN, PCA9554APW, PCA9554ATS, PCA9554BS, PCA9554D, PCA9554DB, PCA9554N, PCA9554PW, PCA9554TS

Products / Packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarkingECCN
PCA9554ABSPCA9554ABS,1189352 720 03118Volume productionSOT629-1
(HVQFN16) 		Reel Pack, SMD, 13"Standard Marking
PCA9554ABS3PCA9554ABS3,1189352 830 49118Volume productionSOT758-1
(HVQFN16) 		Reel Pack, SMD, 13"Standard Marking
PCA9554ADPCA9554AD,1129352 691 95112Volume productionSOT162-1
(SO16) 		TubeStandard Marking
PCA9554ADPCA9554AD,1189352 691 95118Volume productionSOT162-1
(SO16) 		Reel Pack, SMD, 13"Standard Marking
PCA9554ADBPCA9554ADB,1129352 692 01112Volume productionSOT338-1
(SSOP16) 		TubeStandard Marking
PCA9554ADBPCA9554ADB,1189352 692 01118Volume productionSOT338-1
(SSOP16) 		Reel Pack, SMD, 13"Standard Marking
PCA9554APWPCA9554APW,1129352 692 02112Volume productionSOT403-1
(TSSOP16) 		TubeStandard Marking
PCA9554APWPCA9554APW,1189352 692 02118Volume productionSOT403-1
(TSSOP16) 		Reel Pack, SMD, 13"Standard Marking
PCA9554ATSPCA9554ATS,1129352 767 72112Volume productionSOT266-1
(SSOP20) 		TubeStandard Marking
PCA9554ATSPCA9554ATS,1189352 767 72118Volume productionSOT266-1
(SSOP20) 		Reel Pack, SMD, 13"Standard Marking
PCA9554BSPCA9554BS,1189352 719 79118Volume productionSOT629-1
(HVQFN16) 		Reel Pack, SMD, 13"Standard Marking
PCA9554BS3PCA9554BS3,1189352 830 51118Volume productionSOT758-1
(HVQFN16) 		Reel Pack, SMD, 13"Standard Marking
PCA9554DPCA9554D,1129352 691 92112Volume productionSOT162-1
(SO16) 		TubeStandard Marking
PCA9554DPCA9554D,1189352 691 92118Volume productionSOT162-1
(SO16) 		Reel Pack, SMD, 13"Standard Marking
PCA9554DBPCA9554DB,1189352 691 93118Volume productionSOT338-1
(SSOP16) 		Reel Pack, SMD, 13"Standard Marking
PCA9554DBPCA9554DB,1129352 691 93112Volume productionSOT338-1
(SSOP16) 		TubeStandard Marking
PCA9554PW/Q900PCA9554PW/Q900,1189352 946 94118Volume productionSOT403-1
(TSSOP16) 		Reel Pack, SMD, 13"Standard Marking
PCA9554PW/DGPCA9554PW/DG,1189352 858 96118Volume productionSOT403-1
(TSSOP16) 		Reel Pack, SMD, 13"Standard Marking
PCA9554PWPCA9554PW,1129352 691 94112Volume productionSOT403-1
(TSSOP16) 		TubeStandard Marking
PCA9554PWPCA9554PW,1189352 691 94118Volume productionSOT403-1
(TSSOP16) 		Reel Pack, SMD, 13"Standard Marking
PCA9554TSPCA9554TS,1189352 767 71118Volume productionSOT266-1
(SSOP20) 		Reel Pack, SMD, 13"Standard Marking
PCA9554TSPCA9554TS,1129352 767 71112Volume productionSOT266-1
(SSOP20) 		TubeStandard Marking
PCA9554UPCA9554U,0299352 795 64029Volume productionUncased dieStandard Marking

The variants in the table below are discontinued. See the table Discontinuation information at the bottom of this page for more information.

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarkingECCN
PCA9554ABSPCA9554ABS,1159352 720 03115Withdrawn
Replacement product		SOT629-1
(HVQFN16) 		Reel Pack, SMD, 7"Standard Marking
PCA9554AD/GPCA9554AD/G,5189352 764 22518Withdrawn
Replacement product		SOT162-1
(SO16) 		Reel Dry Pack, SMD, 13"Standard Marking
PCA9554AD/G-9352 764 22118Withdrawn
Replacement product		SOT162-1
(SO16) 		Reel Pack, SMD, 13"Standard Marking
PCA9554ANPCA9554AN,1129352 774 96112Discontinued
Replacement product		SOT38-4
(DIP16) 		TubeStandard Marking
PCA9554APW/GPCA9554APW/G,1189352 785 86118Withdrawn
Replacement product		SOT403-1
(TSSOP16) 		Reel Pack, SMD, 13"Standard Marking
PCA9554D/GPCA9554D/G,5289352 764 23528Withdrawn
Replacement product		SOT162-1
(SO16) 		Reel Dry Pack, SMD, 13",TurnedStandard Marking
PCA9554DB/GPCA9554DB/G,1189352 799 18118Withdrawn
Replacement product		SOT338-1
(SSOP16) 		Reel Pack, SMD, 13"Standard Marking
PCA9554NPCA9554N,1129352 767 67112Discontinued
Replacement product		SOT38-4
(DIP16) 		TubeStandard Marking
PCA9554NPCA9554N,1189352 767 67118Withdrawn
Replacement product		SOT38-4
(DIP16) 		Reel Pack, SMD, 13"Standard Marking
PCA9554PW/GPCA9554PW/G,1189352 764 24118Withdrawn
Replacement product		SOT403-1
(TSSOP16) 		Reel Pack, SMD, 13"Standard Marking

Discontinuation information

Type numberOrdering code (12NC)Last-time buy dateLast-time delivery dateReplacement productDN NoticeStatusComments
PCA9554ABS935272003115DN
PCA9554AD/G93527642251831-Dec-1030-Jun-11PCA9554ADDN 66
  • Multi source product
  • Standard availability
Standard End of Life. Discontinued /G version only.
PCA9554AD/G935276422118DN
PCA9554AN93527749611231-Mar-1230-Jun-12DN 201106016DNU01Variant/Package WithdrawalSingle Source. Standard End of Life. Discontinuation of Dip Package only. No Replacement Part.
PCA9554APW/G93527858611831-Dec-1030-Jun-11PCA9554APWDN 66
  • Multi source product
  • Standard availability
Standard End of Life. Discontinued /G version only.
PCA9554D/G93527642352831-Dec-1030-Jun-11PCA9554DDN 66
  • Multi source product
  • Standard availability
Standard End of Life. Discontinued /G version only.
PCA9554DB/G93527991811831-Dec-1030-Jun-11PCA9554DBDN 66
  • Multi source product
  • Standard availability
Standard End of Life. Discontinued /G version only.
PCA9554N93527676711231-Mar-1230-Jun-12DN 201106016DNU01Variant/Package WithdrawalSingle Source. Standard End of Life. Discontinuation of Dip Package only. No Replacement Part.
PCA9554N935276767118DN
PCA9554PW/G93527642411831-Dec-1030-Jun-11PCA9554PWDN 66
  • Multi source product
  • Standard availability
Standard End of Life. Discontinued /G version only.

Parametrics of this product

Type numberPackageMax Sink Current
per package(mA)		# of BitsINTERRUPTSource Current per bit(mA)Weak Pull-Up Current Source Max Sink Current per bit(mA)Operating voltage(VDC)I²C-bus(kHz)Operating
temp.(Cel)		# of Addresses
PCA9554ABSSOT629-1
(HVQFN16)		1008yes10yes252.3~5.5400-40~858
PCA9554ABS3SOT758-1
(HVQFN16)		1008yes10yes252.3~5.5400-40~858
PCA9554ADSOT162-1
(SO16)		1008yes10yes252.3~5.5400-40~858
PCA9554ADBSOT338-1
(SSOP16)		1008yes10yes252.3~5.5400-40~858
PCA9554APWSOT403-1
(TSSOP16)		1008yes10yes252.3~5.5400-40~858
PCA9554ATSSOT266-1
(SSOP20)		1008yes10yes252.3~5.5400-40~858
PCA9554BSSOT629-1
(HVQFN16)		1008yes10yes252.3~5.5400-40~858
PCA9554BS3SOT758-1
(HVQFN16)		1008yes10yes252.3~5.5400-40~858
PCA9554DSOT162-1
(SO16)		1008yes10yes252.3~5.5400-40~858
PCA9554DBSOT338-1
(SSOP16)		1008yes10yes252.3~5.5400-40~858
PCA9554PWSOT403-1
(TSSOP16)		1008yes10yes252.3~5.5400-40~858
PCA9554TSSOT266-1
(SSOP20)		1008yes10yes252.3~5.5400-40~858
PCA9554UUncased die
1008yes10yes252.3~5.5400-40~858

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree conversion dateRHFIFR (FIT)MTBF (hours)MSLMSL LF
PCA9554ABSPCA9554ABS,118PCA9554ABSAlways Pb-free11
PCA9554ABS3PCA9554ABS3,118PCA9554ABS3Always Pb-free11
PCA9554ADPCA9554AD,112PCA9554ADweek 45, 200411
PCA9554ADPCA9554AD,118PCA9554ADweek 45, 200411
PCA9554ADBPCA9554ADB,112PCA9554ADBweek 12, 200511
PCA9554ADBPCA9554ADB,118PCA9554ADBweek 12, 200511
PCA9554APWPCA9554APW,112PCA9554APWweek 48, 200411
PCA9554APWPCA9554APW,118PCA9554APWweek 48, 200411
PCA9554ATSPCA9554ATS,112PCA9554ATSweek 13, 200511
PCA9554ATSPCA9554ATS,118PCA9554ATSweek 13, 200511
PCA9554BSPCA9554BS,118PCA9554BSAlways Pb-free11
PCA9554BS3PCA9554BS3,118PCA9554BS3Always Pb-free11
PCA9554DPCA9554D,112PCA9554Dweek 45, 200411
PCA9554DPCA9554D,118PCA9554Dweek 45, 200411
PCA9554DBPCA9554DB,118PCA9554DBweek 12, 200511
PCA9554DBPCA9554DB,112PCA9554DBweek 12, 200511
PCA9554PW/Q900PCA9554PW/Q900,118PCA9554PW/Q900Always Pb-free11
PCA9554PW/DGPCA9554PW/DG,118PCA9554PW/DGAlways Pb-free11
PCA9554PWPCA9554PW,112PCA9554PWweek 48, 200411
PCA9554PWPCA9554PW,118PCA9554PWweek 48, 200411
PCA9554TSPCA9554TS,118PCA9554TSweek 13, 200511
PCA9554TSPCA9554TS,112PCA9554TSweek 13, 200511
PCA9554UPCA9554U,029PCA9554UNANA

The variants in the table below are discontinued. See the table Discontinuation information at the bottom of this page for more information.

Type numberOrderable part numberChemical contentRoHSLeadfree conversion dateRHFIFR (FIT)MTBF (hours)MSLMSL LF
PCA9554ABSPCA9554ABS,115PCA9554ABSAlways Pb-free11
PCA9554AD/GPCA9554AD/G,518Always Pb-free12
PCA9554AD/G-Always Pb-free
PCA9554ANPCA9554AN,112PCA9554ANAlways Pb-freeNANA
PCA9554APW/GPCA9554APW/G,118week 13, 200511
PCA9554D/GPCA9554D/G,528week 13, 200512
PCA9554DB/GPCA9554DB/G,118Always Pb-free11
PCA9554NPCA9554N,112PCA9554NAlways Pb-freeNANA
PCA9554NPCA9554N,118PCA9554NAlways Pb-free
PCA9554PW/GPCA9554PW/G,118week 13, 200511
Quality and reliability disclaimer

Quality and reliability disclaimer

Important Legal Notice on the product/generic quality information, No Warranty

NXP Semiconductors is providing this data for your convenience only. Please note however that NO WARRANTY, REPRESENTATION, GUARANTEE OR LEGALLY BINDING PRODUCT DESCRIPTION is provided by publishing this informational data, nor does NXP Semiconductors acknowledge or accept any liability related thereto. The documentation and data on NXP Semiconductors products can be found in the data sheets as officially published by NXP Semiconductors. For all purchase of products from NXP Semiconductors the NXP Semiconductors' General Terms and Conditions of Commercial Sale will apply.

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NXP Semiconductors' products are specifically designed and manufactured to be used within the electrical, thermal, mechanical and other parameters set forth in NXP Semiconductors' data sheets. Quality and reliability data provided by NXP Semiconductors, such as MTBF, MSL and FIT, is intended to be a non-binding estimate of product performance based upon diffusion process, history only. It does not imply that any performance levels reflected in such data can be met if the product is operated outside the conditions expressly stated in the latest published data sheet for a device or in your application.

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Discontinuation information

Type numberOrdering code (12NC)Last-time buy dateLast-time delivery dateReplacement productDN NoticeStatusComments
PCA9554ABS935272003115DN
PCA9554AD/G93527642251831-Dec-1030-Jun-11PCA9554ADDN 66
  • Multi source product
  • Standard availability
Standard End of Life. Discontinued /G version only.
PCA9554AD/G935276422118DN
PCA9554AN93527749611231-Mar-1230-Jun-12DN 201106016DNU01Variant/Package WithdrawalSingle Source. Standard End of Life. Discontinuation of Dip Package only. No Replacement Part.
PCA9554APW/G93527858611831-Dec-1030-Jun-11PCA9554APWDN 66
  • Multi source product
  • Standard availability
Standard End of Life. Discontinued /G version only.
PCA9554D/G93527642352831-Dec-1030-Jun-11PCA9554DDN 66
  • Multi source product
  • Standard availability
Standard End of Life. Discontinued /G version only.
PCA9554DB/G93527991811831-Dec-1030-Jun-11PCA9554DBDN 66
  • Multi source product
  • Standard availability
Standard End of Life. Discontinued /G version only.
PCA9554N93527676711231-Mar-1230-Jun-12DN 201106016DNU01Variant/Package WithdrawalSingle Source. Standard End of Life. Discontinuation of Dip Package only. No Replacement Part.
PCA9554N935276767118DN
PCA9554PW/G93527642411831-Dec-1030-Jun-11PCA9554PWDN 66
  • Multi source product
  • Standard availability
Standard End of Life. Discontinued /G version only.

Documentation for this product

TypeFormatTitleDate
Data sheetpdf8-bit I2C-bus and SMBus I/O port with interrupt (v.8.0)2011-07-26
Application notepdfLevel shifting techniques in I2C-bus design (v.1.0)2007-06-20
Application notepdfPCA9500/PCA9501 provides simple card maintenance and control using I²C-bus (v.2.0)2009-03-23
Application notepdfI2C/SMBus general purpose I/O expanders (v.2.0)2005-01-20
Application notepdfI2C manual (v.1.0)2003-03-27
Application notepdfPCA9564 - I2C-bus controller (v.4.0)2004-11-22
Application notepdfPCA9564 Evaluation Board (v.2.0)2004-08-19
Application notepdfI2C 2002-1A Evaluation Board (v.2.0)2003-02-26
Application notepdfA guide to designing for ESD and EMC (v.2.0)2010-01-22
BrochurepdfCreate smarter, more efficient white goods; An industry-leading portfolio of cost-effective, power-saving solutions for major home appliances (v.1.0)2008-06-01
LeafletpdfLow-power GPIO expanders for portable applications; NXP 8/16-bit I2C/SMBus GPIO expanders PCA9534/35/35C for low-power applications (v.1.0)2007-06-01
LeafletpdfVersatile, easy-to-use GPIO expanders; NXP 4/8/16-bit I2C/SMBus GPIO expanders PCA9536/54/54A/55 (v.1.0)2008-08-01
LeafletpdfQuickly add I2C-bus port to DSP, ASIC, microcontroller, or microprocessor; NXP evaluation kit for PCA9564 (v.1.0)2007-05-01
LeafletpdfEvaluate the I2C-bus with a comprehensive kit; NXP I2C 2002-1A evaluation board kits OM6285 and OM6278 (v.1.0)2008-07-01
LeafletpdfI2C Selection Guide 2H 2011 (v.1.0)2011-09-29
Other typepdfDesignCon 2003 TecForum I 2 C Bus Overview (v.1.0)2003-01-27
Other typepdfI2C-bus specification (version 2.1) (v.2.1)2000-01-01
User manualpdfI2C-bus specification and user manual (v.3.0)2007-06-26
User manualpdfI2C Demonstration Board 2005-1 Quick Start Guide (v.1.0)2006-06-13
User manualpdfPCA9698 demonstration board OM6281 (v.1.0)2008-09-26

Ordering & availability

Type numberOrdering code(12NC)Orderable part numberRegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
PCA9554ABS9352 720 03118PCA9554ABS,118NADIGI-KEY CORPORATION30,2212/2/2012Buy online 
   NAMOUSER ELECTRONICS9472/2/2012Buy online 
   NAMOUSER ELECTRONICS9472/2/2012Buy online 
   JAPANCHIP ONE STOPno02/03/2012Buy online 
PCA9554ABS39352 830 49118PCA9554ABS3,118NAAVNET ELECTRONICS MARKETING6,0002/2/2012Buy online 
   NADIGI-KEY CORPORATION5,7782/2/2012Buy online 
   JAPANCHIP ONE STOPyes02/03/2012Buy online 
PCA9554AD9352 691 95112PCA9554AD,112NAARROW ELECTRONICS2,2242/2/2012Buy onlinenot available
   NAWPG AMERICAS INC.1,9202/2/2012Buy online 
   NAFUTURE ELECTRONICS1,4062/1/2012Buy online 
   NADIGI-KEY CORPORATION1,2192/2/2012Buy online 
   NAMOUSER ELECTRONICS6032/2/2012Buy online 
   NAMOUSER ELECTRONICS6032/2/2012Buy online 
   NAAVNET ELECTRONICS MARKETING3412/2/2012Buy online 
   EUFARNELL1122/2/2012Buy online 
   ASELEMENT14 APAC1122/2/2012Buy online 
   JAPANCHIP ONE STOPyes02/03/2012Buy online 
PCA9554AD9352 691 95118PCA9554AD,118EUARROW EUROPE6,0012/2/2012Buy online 
   ASFUTURE ELECTRONICS- ASIA3,0002/1/2012Buy online 
   NAAVNET ELECTRONICS MARKETING1,0002/2/2012Buy online 
   NAMOUSER ELECTRONICS4522/2/2012Buy online 
   NAMOUSER ELECTRONICS4522/2/2012Buy online 
   EUFARNELL1122/2/2012Buy online 
   ASELEMENT14 APAC1122/2/2012Buy online 
   JAPANCHIP ONE STOPyes02/03/2012Buy online 
PCA9554ADB9352 692 01112PCA9554ADB,112NAAVNET ELECTRONICS MARKETING1,2442/2/2012Buy onlinenot available
   JAPANCHIP ONE STOPno02/03/2012Buy online 
PCA9554ADB9352 692 01118PCA9554ADB,118NADIGI-KEY CORPORATION6,8092/2/2012Buy online 
   NAMOUSER ELECTRONICS3,9062/2/2012Buy online 
   NAMOUSER ELECTRONICS3,9062/2/2012Buy online 
   NAFUTURE ELECTRONICS1,0002/1/2012Buy online 
   JAPANCHIP ONE STOPno02/03/2012Buy online 
PCA9554APW9352 692 02112PCA9554APW,112NAMOUSER ELECTRONICS2,6452/2/2012Buy onlinenot available
   NAMOUSER ELECTRONICS2,6452/2/2012Buy online 
   NADIGI-KEY CORPORATION2,4542/2/2012Buy online 
   NAAVNET ELECTRONICS MARKETING6722/2/2012Buy online 
   NAFUTURE ELECTRONICS4802/1/2012Buy online 
   ASELEMENT14 APAC1122/2/2012Buy online 
   EUFUTURE ELECTRONICS UK32/1/2012Buy online 
   JAPANCHIP ONE STOPno02/03/2012Buy online 
PCA9554APW9352 692 02118PCA9554APW,118NAARROW ELECTRONICS5,7742/2/2012Buy online 
   ASFUTURE ELECTRONICS- ASIA2,5002/1/2012Buy online 
   ASAVNET EXPRESS ASIA2,5001/12/2012Buy online 
   NAMOUSER ELECTRONICS1,1382/2/2012Buy online 
   NAMOUSER ELECTRONICS1,1382/2/2012Buy online 
   NAAVNET ELECTRONICS MARKETING1752/2/2012Buy online 
   ASELEMENT14 APAC1122/2/2012Buy online 
   JAPANCHIP ONE STOPyes02/03/2012Buy online 
   ASIASACL - Hong Kong/Chinayes250002/01/2012Buy online 
PCA9554ATS9352 767 72112PCA9554ATS,112NAAVNET ELECTRONICS MARKETING2,3302/2/2012Buy onlinenot available
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Sample

Sample orders normally take 2-4 days for delivery.
If you do not have a direct account with NXP our network of global and regional distributors is available and equipped to support you with NXP samples. As a NXP customer you also have the option to order samples via our sales organisation.

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