I/O Expanders
Use the filters and product table below to compare I/O Expanders components by manufacturer, availability, pricing reference and technical specifications. Review datasheets and key parameters to narrow the selection for your application.
If you already have a target part number, package, rating or quantity, send the requirement to Winsun (HK) Electronics for availability checks, BOM sourcing, shortage support and quotation assistance.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
PCA9500BS,118IC XPND 400KHZ I2C SMBUS 16HVQFN |
32,894 | - |
|
Datasheet | - | 16-VQFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | 8 | I2C, SMBus | No | EEPROM, POR | Push-Pull | 100µA, 25mA | 400 kHz | 2.5V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 16-HVQFN (4x4) |
|
PCA9500PW,118IC XPND 400KHZ I2C SMBUS 16TSSOP |
20,306 | - |
|
Datasheet | - | 16-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | 8 | I2C, SMBus | No | EEPROM, POR | Push-Pull | 100µA, 25mA | 400 kHz | 2.5V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 16-TSSOP |
|
PCAL9535AHF,128IC XPNDR 400KHZ I2C 24HWQFN |
10,042 | - |
|
Datasheet | Agile | 24-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | 16 | I2C | Yes | POR | Open Drain, Push-Pull | 10mA, 25mA | 400 kHz | 1.65V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-HWQFN (4x4) |
|
PCAL9539APW,118IC XPND 400KHZ I2C SMBUS 24TSSOP |
572 | - |
|
Datasheet | Agile | 24-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | 16 | I2C, SMBus | Yes | POR | Open Drain, Push-Pull | 10mA, 25mA | 400 kHz | 1.65V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-TSSOP |
|
PCF8575TS/1,118IC XPNDR 400KHZ I2C 24SSOP |
5,551 | - |
|
Datasheet | - | 24-SSOP (0.209", 5.30mm Width) | Tape & Reel (TR) | Active | Not Verified | 16 | I2C | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 2.5V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-SSOP |
|
|
PCF8575TS/1,112IC XPNDR 400KHZ I2C 24SSOP |
4,309 | - |
|
Datasheet | - | 24-SSOP (0.209", 5.30mm Width) | Tube | Active | Not Verified | 16 | I2C | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 2.5V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-SSOP |
|
|
PCA9555DB,118IC XPNDR 400KHZ I2C SMBUS 24SSOP |
888 | - |
|
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 | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-SSOP |
|
PCAL6534EVJIC XPNDR 1MHZ I2C 42VFBGA |
3,941 | - |
|
Datasheet | Agile | 42-VFBGA | Tape & Reel (TR) | Active | Not Verified | 34 | I2C | Yes | POR | Open Drain, Push-Pull | - | 1 MHz | 1.65V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 42-VFBGA (2.6x3) |
|
PCA9505DGGYIC XPNDR 400KHZ I2C 56TSSOP |
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,118IC XPNDR 400KHZ I2C 56HVQFN |
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) |
I/O Expanders FAQ
Common questions about filtering, comparing and sourcing I/O Expanders components.
How can I narrow the I/O Expanders selection?
Use the available manufacturer and technical parameter filters to reduce the product list. Compare the remaining part numbers against your electrical, package and application requirements.
Should I confirm the datasheet before selecting a part?
Yes. Always review the manufacturer datasheet to confirm ratings, package, operating conditions and other technical details before finalizing a component for your design.
Can Winsun (HK) Electronics help source a specific I/O Expanders part number?
Yes. Send the exact manufacturer part number and required quantity for availability, lead-time and quotation support.
Do you support BOM, shortage or alternative-part requirements?
Yes. You can submit a BOM or shortage list for sourcing assistance. Where appropriate, our team can also help review possible alternative-part options.
