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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
MCP23009-E/MGVAO8-BIT INPUT/OUTPUT EXPANDER, I2C |
2,908 |
|
Datasheet | - | 16-VFQFN Exposed Pad | Tube | Active | - | 8 | I2C | Yes | POR | Open Drain | 25mA | 3.4 MHz | 1.8V ~ 5.5V | -40°C ~ 125°C | Automotive | AEC-Q100 | Surface Mount | 16-QFN (3x3) |
|
|
MCP23S17-E/SSVAO16-BIT INPUT/OUTPUT EXPANDER, SP |
4,697 |
|
Datasheet | - | 28-SSOP (0.209", 5.30mm Width) | Tube | Active | - | 16 | SPI | Yes | POR | Open Drain | 25mA | 10 MHz | 1.8V ~ 5.5V | -40°C ~ 125°C | Automotive | AEC-Q100 | Surface Mount | 28-SSOP |
|
SX1502I087TRTIC XPNDR 400KHZ I2C 20QFN |
1,760 |
|
Datasheet | - | 20-UFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 8mA, 24mA | 400 kHz | 1.2V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 20-QFN-UT (3x3) |
|
CAT9554YI-GT2IC XPND 400KHZ I2C SMBUS 16TSSOP |
1,708 |
|
Datasheet | - | 16-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | 8 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 24mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-TSSOP |
|
PCA9538DBRIC XPNDR 400KHZ I2C SMBUS 16SSOP |
2,262 |
|
Datasheet | - | 16-SSOP (0.209", 5.30mm Width) | Tape & Reel (TR) | 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 |
|
TCA1116PWRIC XPNDR 400KHZ I2C 24TSSOP |
1,188 |
|
Datasheet | - | 24-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | 16 | I2C | Yes | POR | Push-Pull | - | 400 kHz | 1.65V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-TSSOP |
|
TCA1116RTWRIC XPNDR 400KHZ I2C 24WQFN |
2,154 |
|
Datasheet | - | 24-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | 16 | I2C | Yes | POR | Push-Pull | - | 400 kHz | 1.65V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-WQFN (4x4) |
|
PCF8575CDWG4IC XPNDR 400KHZ I2C SMBUS 24SOIC |
2,207 |
|
Datasheet | - | 24-SOIC (0.295", 7.50mm Width) | Tube | Discontinued at Digi-Key | Not Verified | 16 | I2C, SMBus | Yes | POR | Open Drain | 10mA, 25mA | 400 kHz | 4.5V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-SOIC |
|
PCA9539DBRIC XPNDR 400KHZ I2C SMBUS 24SSOP |
3,572 |
|
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 |
|
|
PCA9539DWRIC XPNDR 400KHZ I2C SMBUS 24SOIC |
2,239 |
|
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 |
|
|
PCA9534ADBRIC XPNDR 400KHZ I2C SMBUS 16SSOP |
3,481 |
|
Datasheet | - | 16-SSOP (0.209", 5.30mm 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-SSOP |
|
PCA9672BS,118IC XPNDR 1MHZ I2C 16HVQFN |
1,687 |
|
Datasheet | - | 16-VFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 100µA, 25mA | 1 MHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-HVQFN (3x3) |
|
|
COM-15099IC XPNDR 1.7MHZ I2C 18DIP |
4,992 |
|
Datasheet | - | 18-DIP (0.300", 7.62mm) | Bulk | Active | Not Verified | 8 | I2C | Yes | POR | Open Drain | 3mA | 1.7 MHz | 1.8V ~ 5.5V | - | - | - | Through Hole | 18-PDIP |
|
MAX7313DAEG+TIC XPNDR 400KHZ I2C SMBUS 24QSOP |
2,900 |
|
Datasheet | - | 24-SSOP (0.154", 3.90mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | 16 | I2C, SMBus | Yes | PWM | Open Drain | 50mA | 400 kHz | 2V ~ 3.6V | -40°C ~ 125°C | - | - | Surface Mount | 24-QSOP |
|
MAX7313DATG+TIC XPNDR 400KHZ I2C SMBUS 24TQFN |
2,524 |
|
Datasheet | - | 24-WFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | 16 | I2C, SMBus | Yes | PWM | Open Drain | 50mA | 400 kHz | 2V ~ 3.6V | -40°C ~ 125°C | - | - | Surface Mount | 24-TQFN (4x4) |
|
PCA9555PW/DG,118IC XPND 400KHZ I2C SMBUS 24TSSOP |
2,920 |
|
Datasheet | - | 24-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Obsolete | 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 |
|
PCA9555DBQRIC XPNDR 400KHZ I2C SMBUS 24SSOP |
2,027 |
|
Datasheet | - | 24-SSOP (0.154", 3.90mm Width) | Tape & Reel (TR) | Obsolete | 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 |
|
STMPE801MTRIC XPNDR 400KHZ I2C 16SO |
4,379 |
|
Datasheet | Xpander Logic™ | 16-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | 8 | I2C | Yes | POR | Push-Pull | - | 400 kHz | 1.65V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 16-SO |
|
|
PCAL9554BBSHPIC XPND 400KHZ I2C SMBUS 16HVQFN |
2,812 |
|
Datasheet | Agile | 16-VFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | 8 | I2C, SMBus | Yes | POR | Open Drain, Push-Pull | 10mA, 25mA | 400 kHz | 1.65V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-HVQFN (3x3) |
|
|
MCP23017-E/MLVAO16-BIT INPUT/OUTPUT EXPANDER, I2 |
3,924 |
|
Datasheet | - | 28-VQFN Exposed Pad | Tube | Active | - | 16 | I2C | Yes | POR | Open Drain | 25mA | 1.7 MHz | 1.8V ~ 5.5V | -40°C ~ 125°C | Automotive | AEC-Q100 | Surface Mount | 28-QFN (6x6) |
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.
How can I request pricing and availability?
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.