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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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 |
|
PCF8575DWRIC XPNDR 400KHZ I2C SMBUS 24SOIC |
3,012 |
|
Datasheet | - | 24-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Active | Not Verified | 16 | I2C, SMBus | Yes | POR | Push-Pull | 1mA, 25mA | 400 kHz | 2.5V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-SOIC |
|
PCA9539PWRIC XPND 400KHZ I2C SMBUS 24TSSOP |
3,575 |
|
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 |
|
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) |
|
PCF8575DBRIC XPNDR 400KHZ I2C SMBUS 24SSOP |
2,874 |
|
Datasheet | - | 24-SSOP (0.209", 5.30mm Width) | Tape & Reel (TR) | Active | Not Verified | 16 | I2C, SMBus | Yes | POR | Push-Pull | 1mA, 25mA | 400 kHz | 2.5V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-SSOP |
|
PI4IOE5V6416RQ2LEXIC XPNDR 400KHZ I2C 24TSSOP |
31,075 |
|
Datasheet | - | 24-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | 16 | I2C | Yes | POR | Open Drain, Push-Pull | - | 400 kHz | 1.65V ~ 5.5V | -40°C ~ 105°C | Automotive | AEC-Q100 | Surface Mount | 24-TSSOP |
|
SX1509BIULTRTIC XPNDR 400KHZ I2C 28QFN |
62,070 |
|
Datasheet | - | 28-UFQFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | 16 | I2C | Yes | Keypad Controller, LED Output, POR | Open Drain, Push-Pull | 8mA, 15mA | 400 kHz | 1.425V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 28-QFN-UT (4x4) |
|
PI4IOE5V96248ZLEXIC XPNDR 1MHZ I2C 56TQFN |
1,197 |
|
Datasheet | - | 56-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | 48 | I2C | Yes | - | Push-Pull | 42mA, 480µA | 1 MHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 56-TQFN (7x7) |
|
PI4IOE5V6534Q2ZLWEXIC XPNDR 100KHZ I2C 46QFN |
4,539 |
|
Datasheet | - | 46-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | 34 | I2C | Yes | - | - | 10mA, 10mA | 100 kHz | 1.65V ~ 5.5V | -40°C ~ 105°C | Automotive | AEC-Q100 | Surface Mount, Wettable Flank | W-QFN4565-46 (SWP) |
|
DS4520E+TRLIC XPNDR 400KHZ I2C 16TSSOP |
21,890 |
|
Datasheet | - | 16-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | 9 | I2C | No | EEPROM, POR | Open Drain | 12mA | 400 kHz | 2.7V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-TSSOP |
|
ADP5587ACBZ-R7IC XPNDR 400KHZ I2C 25WLCSP |
1,018 |
|
Datasheet | - | 25-UFBGA, WLCSP | Tape & Reel (TR) | Active | Not Verified | 18 | I2C | Yes | Keypad Controller, POR | Open Drain | - | 400 kHz | 1.65V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 25-WLCSP (1.97x1.97) |
|
|
SX1509QBIULTRTIC XPNDR 400KHZ I2C 28QFN |
25,691 |
|
Datasheet | - | 28-UFQFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | 16 | I2C | Yes | Keypad Controller, LED Output, POR | Open Drain, Push-Pull | 8mA, 15mA | 400 kHz | 1.425V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 28-QFN-UT (4x4) |
|
MAX7321ATE+IC XPNDR 400KHZ I2C 16TQFN |
2,072 |
|
Datasheet | - | 16-WFQFN Exposed Pad | Tube | Active | Not Verified | 8 | I2C | Yes | POR | Open Drain, Push-Pull | 20mA | 400 kHz | 1.71V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 16-TQFN (3x3) |
|
|
MAX7321ATE+TIC XPNDR 400KHZ I2C 16TQFN |
19,343 |
|
Datasheet | - | 16-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | 8 | I2C | Yes | POR | Open Drain, Push-Pull | 20mA | 400 kHz | 1.71V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 16-TQFN (3x3) |
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.