I/O Expanders
Browse available I/O Expanders components by manufacturer and part number. Review stock status, datasheets and key technical parameters to compare suitable options for design, maintenance, replacement or purchasing.
If you already have a target MPN or BOM, send it to EGOO with the required quantity. Our sourcing team can check availability, lead time and quotation options, including hard-to-find and obsolete parts.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
MCP23009-E/MGIC XPNDR 3.4MHZ I2C 16QFN |
5,033 | - |
|
Datasheet | - | 16-VFQFN Exposed Pad | Tube | Active | Not Verified | 8 | I2C | Yes | POR | Open Drain | 25mA | 3.4 MHz | 1.8V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 16-QFN (3x3) |
|
PCA9554BPWJIC XPND 400KHZ I2C SMBUS 16TSSOP |
32,469 | - |
|
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 |
|
PCA9538ABSHPIC XPND 400KHZ I2C SMBUS 16HVQFN |
19,185 | - |
|
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) |
|
|
PCA9574PW,118IC XPND 400KHZ I2C SMBUS 16TSSOP |
7,892 | - |
|
Datasheet | - | 16-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | 8 | I2C, SMBus | Yes | POR | Push-Pull | 1mA, 3mA | 400 kHz | 1.1V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 16-TSSOP |
|
|
PCA9554PW,118IC XPND 400KHZ I2C SMBUS 16TSSOP |
14,091 | - |
|
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 | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-TSSOP |
|
MCP23S08T-E/MLIC XPNDR 10MHZ SPI 20QFN |
12,065 | - |
|
Datasheet | - | 20-VFQFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | 8 | SPI | Yes | POR | Push-Pull | 25mA | 10 MHz | 1.8V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 20-QFN (4x4) |
|
PCA9555RGERIC XPNDR 400KHZ I2C SMBUS 24VQFN |
6,368 | - |
|
Datasheet | - | 24-VFQFN Exposed Pad | 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-VQFN (4x4) |
|
|
MCP23S08-E/MLIC XPNDR 10MHZ SPI 20QFN |
3,195 | - |
|
Datasheet | - | 20-VFQFN Exposed Pad | Tube | Active | Not Verified | 8 | SPI | Yes | POR | Push-Pull | 25mA | 10 MHz | 1.8V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 20-QFN (4x4) |
|
PCA9538PWRIC XPND 400KHZ I2C SMBUS 16TSSOP |
21,807 | - |
|
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 | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-TSSOP |
|
PCF8574T/3,518IC XPNDR 100KHZ I2C 16SO |
18,276 | - |
|
Datasheet | - | 16-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Active | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 300µA, 25mA | 100 kHz | 2.5V ~ 6V | -40°C ~ 85°C | - | - | Surface Mount | 16-SO |
|
PCF8574ATS/3,118IC XPNDR 100KHZ I2C 20SSOP |
18,230 | - |
|
Datasheet | - | 20-LSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 300µA, 25mA | 100 kHz | 2.5V ~ 6V | -40°C ~ 85°C | - | - | Surface Mount | 20-SSOP |
|
|
PCF8574TS/3,118IC XPNDR 100KHZ I2C 20SSOP |
10,938 | - |
|
Datasheet | - | 20-LSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 300µA, 25mA | 100 kHz | 2.5V ~ 6V | -40°C ~ 85°C | - | - | Surface Mount | 20-SSOP |
|
PCA9554BS,118IC XPND 400KHZ I2C SMBUS 16HVQFN |
9,003 | - |
|
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-HVQFN (4x4) |
|
|
PCF8574T/3,512IC XPNDR 100KHZ I2C 16SO |
8,686 | - |
|
Datasheet | - | 16-SOIC (0.295", 7.50mm Width) | Tube | Last Time Buy | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 300µA, 25mA | 100 kHz | 2.5V ~ 6V | -40°C ~ 85°C | - | - | Surface Mount | 16-SO |
|
PCA9535DWRIC XPNDR 400KHZ I2C SMBUS 24SOIC |
3,239 | - |
|
Datasheet | - | 24-SOIC (0.295", 7.50mm 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-SOIC |
|
|
PCA8574PW,118IC XPNDR 400KHZ I2C 16TSSOP |
2,715 | - |
|
Datasheet | - | 16-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 100µA, 25mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-TSSOP |
|
PCA9555PWRIC XPND 400KHZ I2C SMBUS 24TSSOP |
1,847 | - |
|
Datasheet | - | 24-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Not For New Designs | Not Verified | 16 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-TSSOP |
|
MCP23S17-E/SOIC XPNDR 10MHZ SPI 28SOIC |
6,718 | - |
|
Datasheet | - | 28-SOIC (0.295", 7.50mm Width) | Tube | Active | Not Verified | 16 | SPI | Yes | POR | Push-Pull | 25mA | 10 MHz | 1.8V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 28-SOIC |
|
MCP23017-E/SPIC XPNDR 1.7MHZ I2C 28SDIP |
4,876 | - |
|
Datasheet | - | 28-DIP (0.300", 7.62mm) | Tube | Active | Not Verified | 16 | I2C | Yes | POR | Push-Pull | 25mA | 1.7 MHz | 1.8V ~ 5.5V | -40°C ~ 125°C | - | - | Through Hole | 28-SPDIP |
|
MCP23017-E/SSIC XPNDR 1.7MHZ I2C 28SSOP |
4,474 | - |
|
Datasheet | - | 28-SSOP (0.209", 5.30mm Width) | Tube | Active | Not Verified | 16 | I2C | Yes | POR | Push-Pull | 25mA | 1.7 MHz | 1.8V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 28-SSOP |
I/O Expanders FAQ
What I/O Expanders components can I source from EGOO?
You can browse available I/O Expanders product families, manufacturers and part numbers on this page, then review stock, datasheets and technical information for suitable options.
Can EGOO help with hard-to-source or obsolete I/O Expanders parts?
Yes. EGOO provides sourcing support for shortage, obsolete and hard-to-find electronic components. Send us the target manufacturer part number and quantity for checking.
Does EGOO support BOM and small-batch sourcing?
Yes. We support BOM sourcing, prototype requirements and small-batch supply, together with stock, lead-time and quotation assistance.
How do I request pricing and availability?
Submit the manufacturer part number, required quantity and any package, date-code or delivery requirements through the RFQ form, and our team will review available sourcing options.
