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.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
MAX7317ATE+IC I/O EXPANDER SPI 10B 16TQFN |
1,284 | - |
|
Datasheet | - | 16-WFQFN Exposed Pad | Tube | Active | Not Verified | 10 | SPI | No | - | Open Drain | 20mA | - | 2.25V ~ 3.6V | -40°C ~ 125°C | - | - | Surface Mount | 16-TQFN (3x3) |
|
MAX7310AUE+IC XPND 400KHZ I2C SMBUS 16TSSOP |
208 | - |
|
Datasheet | - | 16-TSSOP (0.173", 4.40mm Width) | 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-TSSOP |
|
MAX7317AEE+IC I/O EXPANDER SPI 10B 16QSOP |
448 | - |
|
Datasheet | - | 16-SSOP (0.154", 3.90mm Width) | Tube | Active | Not Verified | 10 | SPI | No | POR | Open Drain | 20mA | - | 2.25V ~ 3.6V | -40°C ~ 125°C | - | - | Surface Mount | 16-QSOP |
|
MAX7313AEG+IC XPNDR 400KHZ I2C SMBUS 24QSOP |
1,490 | - |
|
Datasheet | - | 24-SSOP (0.154", 3.90mm Width) | Tube | Active | Not Verified | 16 | I2C, SMBus | Yes | PWM | Open Drain | 50mA | 400 kHz | 2V ~ 3.6V | -40°C ~ 125°C | - | - | Surface Mount | 24-QSOP |
|
|
MAX7314AEG+IC XPNDR 400KHZ I2C 24QSOP |
507 | - |
|
Datasheet | - | 24-SSOP (0.154", 3.90mm Width) | Tube | Active | Not Verified | 18 | I2C | Yes | PWM | Open Drain | 50mA | 400 kHz | 2V ~ 3.6V | -40°C ~ 125°C | - | - | Surface Mount | 24-QSOP |
|
MAX7312AWG+IC XPNDR 400KHZ I2C SMBUS 24SOIC |
502 | - |
|
Datasheet | - | 24-SOIC (0.295", 7.50mm 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-SOIC |
|
MAX7314AEG+TIC XPNDR 400KHZ I2C 24QSOP |
1,571 | - |
|
Datasheet | - | 24-SSOP (0.154", 3.90mm Width) | Tape & Reel (TR) | Active | Not Verified | 18 | I2C | Yes | PWM | Open Drain | 50mA | 400 kHz | 2V ~ 3.6V | -40°C ~ 125°C | - | - | Surface Mount | 24-QSOP |
|
MAX7311AAG+IC XPNDR 400KHZ I2C SMBUS 24SSOP |
113 | - |
|
Datasheet | - | 24-SSOP (0.209", 5.30mm 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-SSOP |
|
MAX7311ATG+TIC XPNDR 400KHZ I2C SMBUS 24TQFN |
2,069 | - |
|
Datasheet | - | 24-WFQFN Exposed Pad | 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-TQFN (4x4) |
|
|
MAX7311AWG+IC XPNDR 400KHZ I2C SMBUS 24SOIC |
1,136 | - |
|
Datasheet | - | 24-SOIC (0.295", 7.50mm 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-SOIC |
|
CY8C9560A-24AXIIC XPNDR 100KHZ I2C 100TQFP |
539 | - |
|
Datasheet | - | 100-LQFP | Tray | Active | Not Verified | 60 | I2C | Yes | EEPROM, POR, PWM, WDT | Open Drain | 10mA, 25mA | 100 kHz | 3V ~ 5.25V | -40°C ~ 85°C | - | - | Surface Mount | 100-TQFP (14x14) |
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|
CMS82C55AZ96IC XPNDR PARALLEL 44PLCC |
663 | - |
|
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) |
|
|
CS82C55A-5Z96IC XPNDR PARALLEL 44PLCC |
1,000 | - |
|
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) |
|
MAX7300ATL+IC XPNDR 400KHZ I2C 40TQFN |
2,296 | - |
|
Datasheet | - | 40-WFQFN Exposed Pad | Tube | Active | Not Verified | 28 | I2C | Yes | - | Push-Pull | 4.5mA, 10mA | 400 kHz | 2.5V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 40-TQFN (6x6) |
|
TCA9534DWTIC XPNDR 400KHZ I2C 16SOIC |
927 | - |
|
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 |
|
|
TCA9534ADWTIC XPNDR 400KHZ I2C 16SOIC |
441 | - |
|
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 |
|
MCP23009-E/PIC XPNDR 3.4MHZ I2C 18DIP |
220 | - |
|
Datasheet | - | 18-DIP (0.300", 7.62mm) | Tube | Active | Not Verified | 8 | I2C | Yes | POR | Open Drain | 25mA | 3.4 MHz | 1.8V ~ 5.5V | -40°C ~ 125°C | - | - | Through Hole | 18-PDIP |
|
PCA9554CPWJIC XPND 400KHZ I2C SMBUS 16TSSOP |
1,219 | - |
|
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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PCA9702PW,118IC XPNDR 5MHZ SPI SERIAL 16TSSOP |
2,745 | - |
|
Datasheet | - | 16-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | 8 (Input Only) | SPI Serial | Yes | - | Push-Pull | - | 5 MHz | 2.5V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 16-TSSOP |
|
PCF8574ARGYRIC XPNDR 100KHZ I2C 20VQFN |
1,413 | - |
|
Datasheet | - | 20-VFQFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 1mA, 25mA | 100 kHz | 2.5V ~ 6V | -40°C ~ 85°C | - | - | Surface Mount | 20-VQFN (3.5x4.5) |
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.
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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.
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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.
