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I/O Expanders

Browse available I/O Expanders part numbers with manufacturer references, stock information, pricing, datasheets and key specifications. Use the table below to compare options for your project.

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Photo Mfr. Part # Availability Price Quantity Datasheet Series Package/Case Packaging Product Status Programmable Number of I/O Interface Interrupt Output Features Output Type Current - Output Source/Sink Clock Frequency Voltage - Supply Operating Temperature Grade Qualification Mounting Type Supplier Device Package
CS82C55AZ96 Renesas Electronics Corporation

CS82C55AZ96

IC XPNDR PARALLEL 44PLCC

Renesas Electronics Corporation

2,536 -
Datasheet - 44-LCC (J-Lead) Tape & Reel (TR) Active Not Verified 24 Parallel No - Open Drain 2.5mA - 4.5V ~ 5.5V 0°C ~ 70°C - - Surface Mount 44-PLCC (16.58x16.58)
IS82C55AZ Renesas Electronics Corporation

IS82C55AZ

IC XPNDR PARALLEL 44PLCC

Renesas Electronics Corporation

163 -
Datasheet - 44-LCC (J-Lead) Tube Active Not Verified 24 Parallel No - Open Drain 2.5mA - 4.5V ~ 5.5V -40°C ~ 85°C - - Surface Mount 44-PLCC (16.58x16.58)
IS82C55AZ96 Renesas Electronics Corporation

IS82C55AZ96

IC XPNDR PARALLEL 44PLCC

Renesas Electronics Corporation

1,265 -
Datasheet - 44-LCC (J-Lead) Tape & Reel (TR) Active Not Verified 24 Parallel No - Open Drain 2.5mA - 4.5V ~ 5.5V -40°C ~ 85°C - - Surface Mount 44-PLCC (16.58x16.58)
PCA9570GMH NXP USA Inc.

PCA9570GMH

IC XPNDR 100KHZ I2C SMBUS 8XQFN

NXP USA Inc.

9,148 -
Datasheet - 8-XFQFN Exposed Pad Tape & Reel (TR) Active Not Verified 4 I2C, SMBus No POR Push-Pull 4mA 100 kHz 1.1V ~ 3.6V -40°C ~ 85°C - - Surface Mount 8-XQFN (1.6x1.6)
TCA9554ADBR Texas Instruments

TCA9554ADBR

IC XPNDR 400KHZ I2C SMBUS 16SSOP

Texas Instruments

2,920 -
Datasheet - 16-SSOP (0.209", 5.30mm Width) Tape & Reel (TR) Active Not Verified 8 I2C, SMBus Yes POR Push-Pull - 400 kHz 1.65V ~ 5.5V -40°C ~ 85°C - - Surface Mount 16-SSOP
TCA9534DWR Texas Instruments

TCA9534DWR

IC XPNDR 400KHZ I2C 16SOIC

Texas Instruments

462 -
Datasheet - 16-SOIC (0.295", 7.50mm Width) Tape & Reel (TR) Active Not Verified 8 I2C Yes POR Push-Pull - 400 kHz 1.65V ~ 5.5V -40°C ~ 85°C - - Surface Mount 16-SOIC
TCA9555DBR Texas Instruments

TCA9555DBR

IC XPNDR 400KHZ I2C SMBUS 24SSOP

Texas Instruments

3,927 -
Datasheet - 24-SSOP (0.209", 5.30mm Width) Tape & Reel (TR) Active Not Verified 16 I2C, SMBus Yes POR Push-Pull 10mA, 25mA 400 kHz 1.65V ~ 5.5V -40°C ~ 85°C - - Surface Mount 24-SSOP
PCA6408AHKX NXP USA Inc.

PCA6408AHKX

IC XPNDR 400KHZ I2C SMBUS 16XQFN

NXP USA Inc.

6,991 -
Datasheet - 16-XFQFN Tape & Reel (TR) Active Not Verified 8 I2C, SMBus Yes POR Push-Pull 10mA, 25mA 400 kHz 1.65V ~ 5.5V -40°C ~ 85°C - - Surface Mount 16-XQFN (1.8x2.6)
PCA9536DR Texas Instruments

PCA9536DR

IC XPNDR 400KHZ I2C SMBUS 8SOIC

Texas Instruments

6,207 -
Datasheet - 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Not Verified 4 I2C, SMBus No POR Push-Pull 10mA, 25mA 400 kHz 2.3V ~ 5.5V -40°C ~ 85°C - - Surface Mount 8-SOIC
PCAL9714HNMP NXP USA Inc.

PCAL9714HNMP

LOW-VOLTAGE TRANSLATING 14-BIT S

NXP USA Inc.

5,434 -
Datasheet - 24-VFQFN Exposed Pad Tape & Reel (TR) Active - 14 SPI Yes POR Open Drain, Push-Pull 10mA, 25mA 5 MHz 1.1V ~ 5.5V, 1.65V ~ 5.5V -40°C ~ 85°C Automotive AEC-Q100 Surface Mount 24-HVQFN (4x4)
TCA9536DGKR Texas Instruments

TCA9536DGKR

IC XPNDR 1MHZ I2C SMBUS 8VSSOP

Texas Instruments

22,835 -
Datasheet - 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Active Not Verified 4 I2C, SMBus Yes POR Open Drain 10mA, 25mA 1 MHz 1.65V ~ 5.5V -40°C ~ 125°C - - Surface Mount 8-VSSOP
TCA9536DTMR Texas Instruments

TCA9536DTMR

IC XPNDR 1MHZ I2C SMBUS 8X2SON

Texas Instruments

10,868 -
Datasheet - 8-XFDFN Exposed Pad Tape & Reel (TR) Active Not Verified 4 I2C, SMBus Yes POR Open Drain 10mA, 25mA 1 MHz 1.65V ~ 5.5V -40°C ~ 125°C - - Surface Mount 8-X2SON (1.35x0.8)
TCA9536BDTMR Texas Instruments

TCA9536BDTMR

IC XPNDR 1MHZ I2C SMBUS 8X2SON

Texas Instruments

4,758 -
Datasheet - 8-XFDFN Exposed Pad Tape & Reel (TR) Active Not Verified 4 I2C, SMBus Yes POR Open Drain 10mA, 25mA 1 MHz 1.65V ~ 5.5V -40°C ~ 125°C - - Surface Mount 8-X2SON (1.35x0.8)
TCA9536ADTMR Texas Instruments

TCA9536ADTMR

IC XPNDR 1MHZ I2C SMBUS 8X2SON

Texas Instruments

3,828 -
Datasheet - 8-XFDFN Exposed Pad Tape & Reel (TR) Active Not Verified 4 I2C, SMBus Yes POR Open Drain 10mA, 25mA 1 MHz 1.65V ~ 5.5V -40°C ~ 125°C - - Surface Mount 8-X2SON (1.35x0.8)
TCA9537DGSR Texas Instruments

TCA9537DGSR

IC XPNDR 1MHZ I2C 10VSSOP

Texas Instruments

3,624 -
Datasheet - 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Active Not Verified 4 I2C Yes POR Open Drain 10mA, 25mA 1 MHz 1.65V ~ 5.5V -40°C ~ 125°C - - Surface Mount 10-VSSOP
TCA9554ADBQR Texas Instruments

TCA9554ADBQR

IC XPNDR 400KHZ I2C SMBUS 16SSOP

Texas Instruments

3,865 -
Datasheet - 16-SSOP (0.154", 3.90mm Width) Tape & Reel (TR) Active Not Verified 8 I2C, SMBus Yes POR Push-Pull - 400 kHz 1.65V ~ 5.5V -40°C ~ 85°C - - Surface Mount 16-SSOP
TCA6408APWR Texas Instruments

TCA6408APWR

IC XPND 400KHZ I2C SMBUS 16TSSOP

Texas Instruments

3,087 -
Datasheet - 16-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Active Not Verified 8 I2C, SMBus Yes POR Push-Pull 10mA, 25mA 400 kHz 1.65V ~ 5.5V -40°C ~ 85°C - - Surface Mount 16-TSSOP
TCA9534ADWR Texas Instruments

TCA9534ADWR

IC XPNDR 400KHZ I2C 16SOIC

Texas Instruments

3,872 -
Datasheet - 16-SOIC (0.295", 7.50mm Width) Tape & Reel (TR) Active Not Verified 8 I2C Yes - Push-Pull - 400 kHz 1.65V ~ 5.5V -40°C ~ 85°C - - Surface Mount 16-SOIC
TCA9554DBQR Texas Instruments

TCA9554DBQR

IC XPNDR 400KHZ I2C 16SSOP

Texas Instruments

2,181 -
Datasheet - 16-SSOP (0.154", 3.90mm Width) Tape & Reel (TR) Active Not Verified 8 I2C Yes POR Push-Pull - 400 kHz 1.65V ~ 5.5V -40°C ~ 85°C - - Surface Mount 16-SSOP
PCA6408APW,118 NXP USA Inc.

PCA6408APW,118

IC XPND 400KHZ I2C SMBUS 16TSSOP

NXP USA Inc.

66,356 -
Datasheet - 16-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Active Not Verified 8 I2C, SMBus Yes POR Push-Pull 10mA, 25mA 400 kHz 1.65V ~ 5.5V -40°C ~ 85°C - - Surface Mount 16-TSSOP
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WINSUN SOURCING SUPPORT

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FREQUENTLY ASKED QUESTIONS

I/O Expanders FAQ

Common questions about selecting, comparing and sourcing I/O Expanders components through Winsun (HK) Electronics.

What should I check when selecting I/O Expanders components?

Compare the manufacturer part number, electrical specifications, package, operating conditions and application requirements. The product datasheet should be used to confirm technical suitability.

Can Winsun help source specific I/O Expanders part numbers?

Yes. Send the exact part number, manufacturer and required quantity. Winsun (HK) Electronics can assist with availability checks, quotation support and sourcing options based on your requirement.

Do you support shortage, obsolete or hard-to-find I/O Expanders parts?

Yes. Our sourcing team can review shortage and obsolete-part requirements and help check available supply channels or possible alternatives when appropriate.

How do I request a quote for I/O Expanders components?

Submit an RFQ with the part number, manufacturer, quantity and target delivery requirement. Our sales team will review your request and follow up with current sourcing information.