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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.

For BOM, shortage or hard-to-find requirements, send your part number and quantity to Winsun (HK) Electronics for availability, lead-time and quotation support.

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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
R8A66150SP#T1 Renesas Electronics Corporation

R8A66150SP#T1

12-BIT I/O EXPANDER

Renesas Electronics Corporation

428 -
Datasheet * - Bulk Active Not Verified - - - - - - - - - - - - -
PCA9535EMTTXG onsemi

PCA9535EMTTXG

IC XPNDR 100KHZ I2C SMBUS 24QFN

onsemi

2,688 -
Datasheet - 24-WFQFN Exposed Pad Tape & Reel (TR) Obsolete Not Verified 16 I2C, SMBus Yes POR Push-Pull 10mA, 25mA 100 kHz 1.65V ~ 5.5V -55°C ~ 125°C - - Surface Mount 24-QFN (4x4)
MAX7327AATG+T Analog Devices Inc./Maxim Integrated

MAX7327AATG+T

IC XPNDR 400KHZ I2C 24TQFN

Analog Devices Inc./Maxim Integrated

1,002 -
Datasheet - 24-WFQFN Exposed Pad Tape & Reel (TR) Active Not Verified 4 I2C Yes POR Open Drain, Push-Pull 20mA 400 kHz 1.71V ~ 5.5V -40°C ~ 125°C - - Surface Mount 24-TQFN-EP (3.5x3.5)
R8A66155SP#T1 Renesas Electronics Corporation

R8A66155SP#T1

16-BIT I/O EXPANDER

Renesas Electronics Corporation

2,122 -
Datasheet * - Bulk Active Not Verified - - - - - - - - - - - - -
PCA9535ECMTTXG onsemi

PCA9535ECMTTXG

IC XPNDR 100KHZ I2C SMBUS 24QFN

onsemi

1,469 -
Datasheet - 24-WFQFN Exposed Pad Tape & Reel (TR) Obsolete Not Verified 16 I2C, SMBus Yes POR Open Drain 25mA 100 kHz 1.65V ~ 5.5V -55°C ~ 125°C - - Surface Mount 24-QFN (4x4)
TCA6416RTWT Texas Instruments

TCA6416RTWT

IC XPNDR 400KHZ I2C SMBUS 24WQFN

Texas Instruments

2,847 -
Datasheet - 24-WFQFN Exposed Pad Tape & Reel (TR) Obsolete Not Verified 16 I2C, SMBus Yes POR Push-Pull 10mA, 25mA 400 kHz 1.65V ~ 5.5V -40°C ~ 85°C - - Surface Mount 24-WQFN (4x4)
NLVPCA9535EDTR2G onsemi

NLVPCA9535EDTR2G

IC XPNDR 100KHZ I2C 24TSSOP

onsemi

15,854 -
Datasheet - 24-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Obsolete Not Verified 16 I2C Yes - Open Drain - 100 kHz 1.65V ~ 5.5V -55°C ~ 125°C - - Surface Mount 24-TSSOP
PCF8575PW Texas Instruments

PCF8575PW

IC XPND 400KHZ I2C SMBUS 24TSSOP

Texas Instruments

646 -
Datasheet - 24-TSSOP (0.173", 4.40mm Width) Tube Obsolete Not Verified 16 I2C, SMBus Yes POR Push-Pull 10mA, 25mA 400 kHz 4.5V ~ 5.5V -40°C ~ 85°C - - Surface Mount 24-TSSOP
LV71081E-SPL-MPB-E-SY Sanyo

LV71081E-SPL-MPB-E-SY

FOR VIDEO/AUDIO SIGNAL INPUT/OUT

Sanyo

1,215 -
Datasheet * - Bulk Active Not Verified - - - - - - - - - - - - -
LV71081E-SPL-MPB-E onsemi

LV71081E-SPL-MPB-E

FOR VIDEO/AUDIO SIGNAL INPUT/OUT

onsemi

250 -
Datasheet * - Bulk Active Not Verified - - - - - - - - - - - - -
LPC47M287-NR SMSC

LPC47M287-NR

LPC SUPER I/O

SMSC

21,423 -
Datasheet * - Bulk Active Not Verified - - - - - - - - - - - - -
933DM National Semiconductor

933DM

DUAL FOUR INPUT EXPANDER

National Semiconductor

917 -
Datasheet * - Bulk Active Not Verified - - - - - - - - - - - - -
PCF8575CPWR Texas Instruments

PCF8575CPWR

IC XPND 400KHZ I2C SMBUS 24TSSOP

Texas Instruments

2,522 -
Datasheet - 24-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Obsolete Not Verified 16 I2C, SMBus Yes POR Open Drain 10mA, 25mA 400 kHz 4.5V ~ 5.5V -40°C ~ 85°C - - Surface Mount 24-TSSOP
PCF8575CDBQR Texas Instruments

PCF8575CDBQR

IC XPNDR 400KHZ I2C SMBUS 24SSOP

Texas Instruments

4,604 -
Datasheet - 24-SSOP (0.154", 3.90mm Width) Tape & Reel (TR) Obsolete Not Verified 16 I2C, SMBus Yes POR Open Drain 10mA, 25mA 400 kHz 4.5V ~ 5.5V -40°C ~ 85°C - - Surface Mount 24-SSOP
PCF8575CDBR Texas Instruments

PCF8575CDBR

IC XPNDR 400KHZ I2C SMBUS 24SSOP

Texas Instruments

2,455 -
Datasheet - 24-SSOP (0.209", 5.30mm Width) Tape & Reel (TR) Obsolete Not Verified 16 I2C, SMBus Yes POR Open Drain 10mA, 25mA 400 kHz 4.5V ~ 5.5V -40°C ~ 85°C - - Surface Mount 24-SSOP
MAX7315AEE Analog Devices Inc./Maxim Integrated

MAX7315AEE

8-PORT I/O EXPANDER

Analog Devices Inc./Maxim Integrated

9,424 -
Datasheet - 16-SSOP (0.154", 3.90mm Width) Bulk Active Not Verified 8 I2C, SMBus Yes PWM Open Drain 50mA 400 kHz 2V ~ 3.6V -40°C ~ 125°C - - Surface Mount 16-QSOP
R8A66152SP#T1 Renesas Electronics Corporation

R8A66152SP#T1

12-BIT I/O EXPANDER

Renesas Electronics Corporation

13,291 -
Datasheet * - Bulk Active Not Verified - - - - - - - - - - - - -
R8A66156SP#D1 Renesas Electronics Corporation

R8A66156SP#D1

24-BIT I/O EXPANDER

Renesas Electronics Corporation

21,897 -
Datasheet * - Bulk Active Not Verified - - - - - - - - - - - - -
R8A66156SP#T1 Renesas Electronics Corporation

R8A66156SP#T1

R8A66156SP 24 BIT I/O EXPANDER W

Renesas Electronics Corporation

3,725 -
Datasheet * - Bulk Active Not Verified - - - - - - - - - - - - -
PCF8575DB Texas Instruments

PCF8575DB

IC XPNDR 400KHZ I2C SMBUS 24SSOP

Texas Instruments

164 -
Datasheet - 24-SSOP (0.209", 5.30mm Width) Bulk Obsolete Not Verified 16 I2C, SMBus Yes POR Push-Pull 10mA, 25mA 400 kHz 2.5V ~ 5.5V -40°C ~ 85°C - - Surface Mount 24-SSOP
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WINSUN SOURCING SUPPORT

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Send the manufacturer, part number, quantity and target delivery requirement. Winsun (HK) Electronics can assist with availability checks, quotation support, shortage sourcing and hard-to-find or obsolete components.

Global component sourcing support BOM, shortage and EOL support
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.