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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
PCF8574APWRG4IC XPNDR 100KHZ I2C 20TSSOP |
4,507 | - |
|
Datasheet | - | 20-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Discontinued at Digi-Key | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 1mA, 25mA | 100 kHz | 2.5V ~ 6V | -40°C ~ 85°C | - | - | Surface Mount | 20-TSSOP |
|
PCF8574DGVRG4IC XPNDR 100KHZ I2C 20TVSOP |
1,839 | - |
|
Datasheet | - | 20-TFSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Discontinued at Digi-Key | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 1mA, 25mA | 100 kHz | 2.5V ~ 6V | -40°C ~ 85°C | - | - | Surface Mount | 20-TVSOP |
|
PCA9534ARGTRG4IC XPNDR 400KHZ I2C SMBUS 16VQFN |
1,262 | - |
|
Datasheet | - | 16-VFQFN Exposed Pad | Tape & Reel (TR) | Discontinued at Digi-Key | Not Verified | 8 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-VQFN (3x3) |
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|
PCA9534RGVRG4IC XPNDR 400KHZ I2C SMBUS 16VQFN |
4,737 | - |
|
Datasheet | - | 16-VQFN Exposed Pad | Tape & Reel (TR) | Discontinued at Digi-Key | Not Verified | 8 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-VQFN (4x4) |
|
PCA9554ADBIC XPNDR 400KHZ I2C SMBUS 16SSOP |
4,954 | - |
|
Datasheet | - | 16-SSOP (0.209", 5.30mm Width) | Tray | Obsolete | 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 |
|
PCA9554APWIC XPND 400KHZ I2C SMBUS 16TSSOP |
1,940 | - |
|
Datasheet | - | 16-TSSOP (0.173", 4.40mm Width) | Tube | Obsolete | Not Verified | 8 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-TSSOP |
|
TCAL6416RDTOR16-BIT TRANSLATING IC-BUS/SMBUS |
1,350 | - |
|
Datasheet | - | 24-QFN | Tape & Reel (TR) | Active | - | 16 | I2C, SMBus | Yes | POR | Open Drain, Push-Pull | 10mA, 25mA | 1 MHz | 1.08V ~ 3.6V | -40°C ~ 125°C | - | - | Surface Mount | 24-X2QFN (2x2) |
|
PCA9555RGERG4IC XPNDR 400KHZ I2C SMBUS 24VQFN |
1,846 | - |
|
Datasheet | - | 24-VFQFN Exposed Pad | Tape & Reel (TR) | Discontinued at Digi-Key | Not Verified | 16 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-VQFN (4x4) |
|
|
TCA9536CDTMRPROTOTYPE |
4,640 | - |
|
Datasheet | - | 8-XFDFN Exposed Pad | Tape & Reel (TR) | Active | - | 4 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 1 MHz | 1.65V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 8-X2SON (1.35x0.8) |
|
PCA9555DWRG4IC XPNDR 400KHZ I2C SMBUS 24SOIC |
4,661 | - |
|
Datasheet | - | 24-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Discontinued at Digi-Key | Not Verified | 16 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-SOIC |
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.
