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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
PCA9505DGGY NXP USA Inc.

PCA9505DGGY

IC XPNDR 400KHZ I2C 56TSSOP

NXP USA Inc.

3,977 -
Datasheet - 56-TFSOP (0.240", 6.10mm Width) Tape & Reel (TR) Active Not Verified 40 I2C Yes POR Push-Pull 10mA, 15mA 400 kHz 2.3V ~ 5.5V -40°C ~ 85°C - - Surface Mount 56-TSSOP
PCA9506BS,118 NXP USA Inc.

PCA9506BS,118

IC XPNDR 400KHZ I2C 56HVQFN

NXP USA Inc.

5,028 -
Datasheet - 56-VFQFN Exposed Pad Tape & Reel (TR) Active Not Verified 40 I2C Yes POR Push-Pull 10mA, 25mA 400 kHz 2.3V ~ 5.5V -40°C ~ 85°C - - Surface Mount 56-HVQFN (8x8)
PCA9506DGG,518 NXP USA Inc.

PCA9506DGG,518

IC XPNDR 400KHZ I2C 56TSSOP

NXP USA Inc.

5,412 -
Datasheet - 56-TFSOP (0.240", 6.10mm Width) Tape & Reel (TR) Active Not Verified 40 I2C Yes POR Push-Pull 10mA, 25mA 400 kHz 2.3V ~ 5.5V -40°C ~ 85°C - - Surface Mount 56-TSSOP
PCA9698BS,118 NXP USA Inc.

PCA9698BS,118

IC XPNDR 1MHZ I2C 56HVQFN

NXP USA Inc.

7,698 -
Datasheet - 56-VFQFN Exposed Pad Tape & Reel (TR) Active Not Verified 40 I2C Yes POR Open Drain 10mA, 25mA 1 MHz 2.3V ~ 5.5V -40°C ~ 85°C - - Surface Mount 56-HVQFN (8x8)
CY8C9520A-24PVXIT Infineon Technologies

CY8C9520A-24PVXIT

IC XPNDR 100KHZ I2C 28SSOP

Infineon Technologies

19,003 -
Datasheet - 28-SSOP (0.209", 5.30mm Width) Tape & Reel (TR) Active Not Verified 20 I2C Yes EEPROM, POR, PWM, WDT Open Drain 10mA, 25mA 100 kHz 3V ~ 5.25V -40°C ~ 85°C - - Surface Mount 28-SSOP
PCA9698DGG,518 NXP USA Inc.

PCA9698DGG,518

IC XPNDR 1MHZ I2C 56TSSOP

NXP USA Inc.

3,179 -
Datasheet - 56-TFSOP (0.240", 6.10mm Width) Tape & Reel (TR) Active Not Verified 40 I2C Yes POR Open Drain 10mA, 25mA 1 MHz 2.3V ~ 5.5V -40°C ~ 85°C - - Surface Mount 56-TSSOP
PCA9698DGG,512 NXP USA Inc.

PCA9698DGG,512

IC XPNDR 1MHZ I2C 56TSSOP

NXP USA Inc.

850 -
Datasheet - 56-TFSOP (0.240", 6.10mm Width) Tube Last Time Buy Not Verified 40 I2C Yes POR Open Drain 10mA, 25mA 1 MHz 2.3V ~ 5.5V -40°C ~ 85°C - - Surface Mount 56-TSSOP
MAX7321AEE+T Analog Devices Inc./Maxim Integrated

MAX7321AEE+T

IC XPNDR 400KHZ I2C 16QSOP

Analog Devices Inc./Maxim Integrated

3,179 -
Datasheet - 16-SSOP (0.154", 3.90mm Width) Tape & Reel (TR) 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
MAX7319ATE+T Analog Devices Inc./Maxim Integrated

MAX7319ATE+T

IC XPNDR 400KHZ I2C 16TQFN

Analog Devices Inc./Maxim Integrated

1,198 -
Datasheet - 16-WFQFN Exposed Pad Tape & Reel (TR) Active Not Verified 8 (Input Only) I2C Yes POR - 25mA 400 kHz 1.71V ~ 5.5V -40°C ~ 125°C - - Surface Mount 16-TQFN (3x3)
MAX7315ATE+T Analog Devices Inc./Maxim Integrated

MAX7315ATE+T

IC XPNDR 400KHZ I2C SMBUS 16TQFN

Analog Devices Inc./Maxim Integrated

2,884 -
Datasheet - 16-WFQFN Exposed Pad Tape & Reel (TR) Active Not Verified 8 I2C, SMBus Yes PWM Open Drain 50mA 400 kHz 2V ~ 3.6V -40°C ~ 125°C - - Surface Mount 16-TQFN (3x3)
MAX7315AUE+T Analog Devices Inc./Maxim Integrated

MAX7315AUE+T

IC XPND 400KHZ I2C SMBUS 16TSSOP

Analog Devices Inc./Maxim Integrated

2,525 -
Datasheet - 16-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Active Not Verified 8 I2C, SMBus Yes PWM Open Drain 50mA 400 kHz 2V ~ 3.6V -40°C ~ 125°C - - Surface Mount 16-TSSOP
DS4520E+ Analog Devices Inc./Maxim Integrated

DS4520E+

IC XPNDR 400KHZ I2C 16TSSOP

Analog Devices Inc./Maxim Integrated

1,296 -
Datasheet - 16-TSSOP (0.173", 4.40mm Width) Tube Active Not Verified 9 I2C No EEPROM, POR Open Drain 12mA 400 kHz 2.7V ~ 5.5V -40°C ~ 85°C - - Surface Mount 16-TSSOP
MAX7315AUE+ Analog Devices Inc./Maxim Integrated

MAX7315AUE+

IC XPND 400KHZ I2C SMBUS 16TSSOP

Analog Devices Inc./Maxim Integrated

2,666 -
Datasheet - 16-TSSOP (0.173", 4.40mm Width) Tube Active Not Verified 8 I2C, SMBus Yes PWM Open Drain 50mA 400 kHz 2V ~ 3.6V -40°C ~ 125°C - - Surface Mount 16-TSSOP
MAX7310ATE+ Analog Devices Inc./Maxim Integrated

MAX7310ATE+

IC XPNDR 400KHZ I2C SMBUS 16TQFN

Analog Devices Inc./Maxim Integrated

521 -
Datasheet - 16-WQFN Exposed Pad Tube Active Not Verified 8 I2C, SMBus No POR Open Drain, Push-Pull 18mA, 30mA 400 kHz 2.3V ~ 5.5V -40°C ~ 125°C - - Surface Mount 16-TQFN (4x4)
MAX7310AUE+T Analog Devices Inc./Maxim Integrated

MAX7310AUE+T

IC XPND 400KHZ I2C SMBUS 16TSSOP

Analog Devices Inc./Maxim Integrated

6,907 -
Datasheet - 16-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Active Not Verified 8 I2C, SMBus No POR Open Drain, Push-Pull 18mA, 30mA 400 kHz 2.3V ~ 5.5V -40°C ~ 125°C - - Surface Mount 16-TSSOP
MAX7317AEE+T Analog Devices Inc./Maxim Integrated

MAX7317AEE+T

IC I/O EXPANDER SPI 10B 16QSOP

Analog Devices Inc./Maxim Integrated

5,648 -
Datasheet - 16-SSOP (0.154", 3.90mm Width) Tape & Reel (TR) Active Not Verified 10 SPI No POR Open Drain 20mA - 2.25V ~ 3.6V -40°C ~ 125°C - - Surface Mount 16-QSOP
MAX7318AUG+T Analog Devices Inc./Maxim Integrated

MAX7318AUG+T

IC XPND 400KHZ I2C SMBUS 24TSSOP

Analog Devices Inc./Maxim Integrated

3,516 -
Datasheet - 24-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Active Not Verified 16 I2C, SMBus Yes POR Push-Pull 31mA, 43mA 400 kHz 2V ~ 5.5V -40°C ~ 125°C - - Surface Mount 24-TSSOP
MAX7318AUG+ Analog Devices Inc./Maxim Integrated

MAX7318AUG+

IC XPND 400KHZ I2C SMBUS 24TSSOP

Analog Devices Inc./Maxim Integrated

385 -
Datasheet - 24-TSSOP (0.173", 4.40mm Width) Tube Active Not Verified 16 I2C, SMBus Yes POR Push-Pull 31mA, 43mA 400 kHz 2V ~ 5.5V -40°C ~ 125°C - - Surface Mount 24-TSSOP
MAX7312ATG+ Analog Devices Inc./Maxim Integrated

MAX7312ATG+

IC XPNDR 400KHZ I2C SMBUS 24TQFN

Analog Devices Inc./Maxim Integrated

1,468 -
Datasheet - 24-WFQFN Exposed Pad Tube Active Not Verified 16 I2C, SMBus Yes POR Push-Pull 31mA, 43mA 400 kHz 2V ~ 5.5V -40°C ~ 125°C - - Surface Mount 24-TQFN (4x4)
MAX7313AEG+T Analog Devices Inc./Maxim Integrated

MAX7313AEG+T

IC XPNDR 400KHZ I2C SMBUS 24QSOP

Analog Devices Inc./Maxim Integrated

4,710 -
Datasheet - 24-SSOP (0.154", 3.90mm Width) Tape & Reel (TR) Active Not Verified 16 I2C, SMBus Yes PWM Open Drain 50mA 400 kHz 2V ~ 3.6V -40°C ~ 125°C - - Surface Mount 24-QSOP
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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.