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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
PCA9670PW,112 NXP Semiconductors

PCA9670PW,112

Remote 8-bit I\/O expander for F

NXP Semiconductors

1,269 -
Datasheet - 16-TSSOP (0.173", 4.40mm Width) Bulk Obsolete - 8 I2C, SMBus Yes POR Push-Pull 300µA, 41mA 1 MHz 2.3V ~ 5.5V -40°C ~ 85°C - - Surface Mount 16-TSSOP
PCAL9538APWJ NXP Semiconductors

PCAL9538APWJ

PCAL9538A - LOW-VOLTAGE 8-BIT I2

NXP Semiconductors

15,800 -
Datasheet - 16-TSSOP (0.173", 4.40mm Width) Bulk Obsolete Not Verified 8 I2C, SMBus Yes POR Open Drain, Push-Pull 10mA, 25mA 400 kHz 1.65V ~ 5.5V -40°C ~ 85°C - - Surface Mount 16-TSSOP
CAT9534WI-G onsemi

CAT9534WI-G

PARALLEL I/O PORT, 8-BIT, 8 I/O,

onsemi

15,745 -
Datasheet * - Bulk Active Not Verified - - - - - - - - - - - - -
PCA9534DB National Semiconductor

PCA9534DB

PCA9534 REMOTE 8-BIT I2C AND LOW

National Semiconductor

3,120 -
Datasheet - 16-SSOP (0.209", 5.30mm Width) Bulk Active Not Verified 8 I2C, SMBus Yes POR Push-Pull 10mA, 25mA 400 kHz 2.3V ~ 5.5V -40°C ~ 85°C - - Surface Mount 16-SSOP
LM8335TLE/NOPB Texas Instruments

LM8335TLE/NOPB

LM8335 GENERAL-PURPOSE OUTPUT EX

Texas Instruments

750 -
Datasheet * - Bulk Active Not Verified - - - - - - - - - - - - -
PCA9675PW,118 NXP Semiconductors

PCA9675PW,118

PCA9675PW - Remote 16-Bit I/O Ex

NXP Semiconductors

6,128 -
Datasheet - 24-TSSOP (0.173", 4.40mm Width) Bulk Active - 16 I2C, SMBus Yes POR Push-Pull 300µA, 42mA 1 MHz 2.3V ~ 5.5V -40°C ~ 85°C - - Surface Mount 24-TSSOP
LC709004AMJ-AH onsemi

LC709004AMJ-AH

IO EXPANDER16I/O TAPING

onsemi

2,000 -
Datasheet * - Bulk Active Not Verified - - - - - - - - - - - - -
LC898116-TBM-H onsemi

LC898116-TBM-H

LC898116 - Ignition Controller

onsemi

1,000 -
Datasheet - - Bulk Obsolete - - - - - - - - - - - - - -
CY8C9560A5-24AXI Cypress Semiconductor Corp

CY8C9560A5-24AXI

CY8C9560A - 60 Bit I/O Expander

Cypress Semiconductor Corp

236 -
Datasheet - - Bulk Obsolete - - - - - - - - - - - - - -
PCA9554DB,118 NXP USA Inc.

PCA9554DB,118

IC XPNDR 400KHZ I2C SMBUS 16SSOP

NXP USA Inc.

4,465 -
Datasheet - 16-SSOP (0.209", 5.30mm Width) Tape & Reel (TR) Active Not Verified 8 I2C, SMBus Yes POR Push-Pull 10mA, 25mA 400 kHz 2.3V ~ 5.5V -40°C ~ 85°C - - Surface Mount 16-SSOP
DS2408S+T&R Analog Devices Inc./Maxim Integrated

DS2408S+T&R

IC XPNDR 1-WIRE 16SOIC

Analog Devices Inc./Maxim Integrated

3,283 -
Datasheet - 16-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Not Verified 8 1-Wire® No - Open Drain - - 2.8V ~ 5.25V -40°C ~ 85°C - - Surface Mount 16-SOIC
IP82C55AZ Renesas Electronics Corporation

IP82C55AZ

IC XPNDR PARALLEL 40DIP

Renesas Electronics Corporation

1,214 -
Datasheet - 40-DIP (0.600", 15.24mm) Tube Active Not Verified 24 Parallel No - Open Drain 2.5mA - 4.5V ~ 5.5V -40°C ~ 85°C - - Through Hole 40-PDIP
MCP23S09-E/SO Microchip Technology

MCP23S09-E/SO

IC XPNDR 10MHZ SPI 18SOIC

Microchip Technology

4,170 -
Datasheet - 18-SOIC (0.295", 7.50mm Width) Tube Active Not Verified 8 SPI Yes - Open Drain 25mA 10 MHz 1.8V ~ 5.5V -40°C ~ 125°C - - Surface Mount 18-SOIC
PI4IOE5V9554LE Diodes Incorporated

PI4IOE5V9554LE

IC XPNDR 400KHZ I2C 16TSSOP

Diodes Incorporated

1,112 -
Datasheet - 16-TSSOP (0.173", 4.40mm Width) Tube Active Not Verified 8 I2C Yes - - - 400 kHz 2.3V ~ 5.5V -40°C ~ 85°C - - Surface Mount 16-TSSOP
MCP25020-I/P Microchip Technology

MCP25020-I/P

IC XPNDR 25MHZ CAN V2.0B 14DIP

Microchip Technology

1,899 -
Datasheet - 14-DIP (0.300", 7.62mm) Tube Active Verified 8 CAN V2.0b No EEPROM, POR, PWM Push-Pull 25mA 25 MHz 2.75V ~ 5.5V -40°C ~ 85°C - - Through Hole 14-PDIP
MCP25050-I/P Microchip Technology

MCP25050-I/P

IC XPNDR 25MHZ CAN V2.0B 14DIP

Microchip Technology

2,875 -
Datasheet - 14-DIP (0.300", 7.62mm) Tube Active Verified 8 CAN V2.0b No ADC, EEPROM, POR, PWM Push-Pull 25mA 25 MHz 2.7V ~ 5.5V -40°C ~ 85°C - - Through Hole 14-PDIP
MCP25050-E/P Microchip Technology

MCP25050-E/P

IC XPNDR 25MHZ CAN V2.0B 14DIP

Microchip Technology

2,730 -
Datasheet - 14-DIP (0.300", 7.62mm) Tube Active Verified 8 CAN V2.0b No ADC, EEPROM, POR, PWM Push-Pull 25mA 25 MHz 4.5V ~ 5.5V -40°C ~ 125°C - - Through Hole 14-PDIP
MAX7321AEE+ Analog Devices Inc./Maxim Integrated

MAX7321AEE+

IC XPNDR 400KHZ I2C 16QSOP

Analog Devices Inc./Maxim Integrated

1,500 -
Datasheet - 16-SSOP (0.154", 3.90mm Width) Tube Active Not Verified 8 I2C Yes POR Open Drain, Push-Pull 20mA 400 kHz 1.71V ~ 5.5V -40°C ~ 125°C - - Surface Mount 16-QSOP
PI4IOE5V9538LE Diodes Incorporated

PI4IOE5V9538LE

IC XPNDR 400KHZ SMBUS 16TSSOP

Diodes Incorporated

3,614 -
Datasheet - 16-TSSOP (0.173", 4.40mm Width) Tube Active Not Verified 8 SMBus Yes POR Push-Pull - 400 kHz 2.3V ~ 5.5V - - - Surface Mount 16-TSSOP
PI4IOE5V9539LE Diodes Incorporated

PI4IOE5V9539LE

IC XPNDR 400KHZ I2C 24TSSOP

Diodes Incorporated

1,669 -
Datasheet - 24-TSSOP (0.173", 4.40mm Width) Tube Active Not Verified 16 I2C Yes - - - 400 kHz 2.3V ~ 5.5V -40°C ~ 85°C - - Surface Mount 24-TSSOP
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WINSUN SOURCING SUPPORT

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FREQUENTLY ASKED QUESTIONS

I/O Expanders FAQ

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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.