I/O Expanders
Explore I/O Expanders parts from multiple manufacturers, with model information, availability, datasheets and technical specifications for engineering and purchasing.
For parts that are not shown in the list, send the manufacturer part number, quantity or BOM to ICMENU. Our team can assist with availability checks and quotation support.
| Photo | Mfr. Part # | Availability | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
PCA6408ABSHPIC XPND 400KHZ I2C SMBUS 16HVQFN |
14,744 |
|
Datasheet | - | 16-VFQFN Exposed Pad | 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-HVQFN (3x3) |
|
TCA9554ADWRIC XPNDR 400KHZ I2C SMBUS 16SOIC |
1,177 |
|
Datasheet | - | 16-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Active | Not Verified | 8 | I2C, SMBus | Yes | POR | Push-Pull | - | 400 kHz | 1.65V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-SOIC |
|
PCAL6416AEVJIC XPND 400KHZ I2C SMBUS 24VFBGA |
3,542 |
|
Datasheet | Agile | 24-VFBGA | 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-VFBGA (3x3) |
|
TCAL6408RSVRTCAL6408RSVR |
1,013 |
|
Datasheet | - | 16-UFQFN | Tape & Reel (TR) | Active | - | 8 | I2C, SMBus | Yes | POR | Open Drain, Push-Pull | 10mA, 25mA | 1 MHz | 1.08V ~ 3.6V | -40°C ~ 125°C | - | - | Surface Mount | 16-UQFN (2.6x1.8) |
|
PCA9554ARGTRIC XPNDR 400KHZ I2C SMBUS 16VQFN |
12,777 |
|
Datasheet | - | 16-VFQFN Exposed Pad | 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-VQFN (3x3) |
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PCA9554ARGVRIC XPNDR 400KHZ I2C SMBUS 16VQFN |
3,817 |
|
Datasheet | - | 16-VQFN Exposed Pad | 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-VQFN (4x4) |
|
|
PCA9557RGVRIC XPNDR 400KHZ I2C SMBUS 16VQFN |
3,435 |
|
Datasheet | - | 16-VQFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | 8 | I2C, SMBus | No | POR | Open Drain, Push-Pull | 10mA, 25mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-VQFN (4x4) |
|
TCA9535MRGERIC XPNDR 400KHZ I2C SMBUS 24VQFN |
1,799 |
|
Datasheet | - | 24-VFQFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | 16 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 1.65V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-VQFN (4x4) |
|
PCA9557DRIC XPNDR 400KHZ I2C SMBUS 16SOIC |
1,254 |
|
Datasheet | - | 16-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) | Active | Not Verified | 8 | I2C, SMBus | No | POR | Open Drain, Push-Pull | 10mA, 25mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-SOIC |
|
TCA9535DBRIC XPNDR 400KHZ I2C SMBUS 24SSOP |
4,207 |
|
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 | 1.65V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-SSOP |
|
TCA6408AQPWRQ1IC XPND 400KHZ I2C SMBUS 16TSSOP |
8,645 |
|
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 ~ 3.6V | -40°C ~ 125°C | Automotive | AEC-Q100 | Surface Mount | 16-TSSOP |
|
MCP23009-E/SOIC XPNDR 3.4MHZ I2C 18SOIC |
221 |
|
Datasheet | - | 18-SOIC (0.295", 7.50mm Width) | Tube | Active | Not Verified | 8 | I2C | Yes | POR | Open Drain | 25mA | 3.4 MHz | 1.8V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 18-SOIC |
|
PCA9537DPZIC XPND 400KHZ I2C SMBUS 10TSSOP |
1,547 |
|
Datasheet | - | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) | Tape & Reel (TR) | Active | Not Verified | 4 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 24mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 10-TSSOP |
|
PCA9670PW,118IC XPNDR 1MHZ I2C 16TSSOP |
3,769 |
|
Datasheet | - | 16-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | 8 | I2C | No | POR | Push-Pull | 100µA, 25mA | 1 MHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-TSSOP |
|
TCA6416APWRIC XPND 400KHZ I2C SMBUS 24TSSOP |
3,188 |
|
Datasheet | - | 24-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | 16 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 1.65V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-TSSOP |
|
|
PCA9555PWJI2C |
1,674 |
|
Datasheet | - | 24-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | - | 16 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-TSSOP |
|
TCA9538DBRIC XPNDR 400KHZ I2C 16SSOP |
5,484 |
|
Datasheet | - | 16-SSOP (0.209", 5.30mm 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-SSOP |
|
|
TCA9538PWRIC XPNDR 400KHZ I2C 16TSSOP |
2,784 |
|
Datasheet | - | 16-TSSOP (0.173", 4.40mm 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-TSSOP |
|
|
PCA9534DWRIC XPNDR 400KHZ I2C SMBUS 16SOIC |
2,461 |
|
Datasheet | - | 16-SOIC (0.295", 7.50mm 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-SOIC |
|
MCP23S08-E/PIC XPNDR 10MHZ SPI 18DIP |
14,260 |
|
Datasheet | - | 18-DIP (0.300", 7.62mm) | Tube | Active | Not Verified | 8 | SPI | Yes | POR | Push-Pull | 25mA | 10 MHz | 1.8V ~ 5.5V | -40°C ~ 125°C | - | - | Through Hole | 18-PDIP |
Frequently Asked Questions
What are I/O Expanders components used for?
I/O Expanders components are used in a wide range of electronic equipment and systems. Their exact function depends on the device, circuit design and technical requirements of the application.
How do I choose the right I/O Expanders part?
Compare the manufacturer part number, key specifications, package type, operating conditions, availability and datasheet information. For replacement projects, always verify the critical electrical and mechanical parameters before selecting an alternative.
Can ICMENU help source obsolete or hard-to-find I/O Expanders parts?
Yes. Send us the required manufacturer part number, quantity or BOM. Our sourcing team can help check stock availability, lead time, alternative sourcing options and quotation details.
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Submit the part number, manufacturer and required quantity through our RFQ form. ICMENU will review your request and provide available stock, pricing and sourcing information.