What are IO Expanders ?
IO Expanders are integrated circuits that increase the number of I/O ports available on a microcontroller, allowing for more devices to be connected. They are widely used in applications such as wireless and RF signal chains, production electronics assembly, and engineering evaluation. Important specifications include Clock Frequency, which affects data transfer rates; Current, which determines power consumption; and Output Type, which influences signal compatibility. It's crucial for procurement teams to validate lifecycle status and consider alternate-source options to mitigate sourcing risks.
Parts in this category
Tap rows to select parts
Compare stocked parts across manufacturers and distributors, then add lines to your RFQ.
| Part & Mfr | Clock Frequency | Current | Features | Interface | Interrupt Output | Mounting Type | Number of I | Operating Temperature | Output Type | Supplier Device Package | Voltage | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 10mA, 25mA | POR | I²C, SMBus | No | Surface Mount | 8 | -40°C ~ 85°C | Open Drain, Push-Pull | 16-SOIC | 2.3V ~ 5.5V | |
NXP Semiconductors
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 10mA, 25mA | POR | I²C, SMBus | Yes | Surface Mount | 16 | -40°C ~ 85°C | Open Drain | 24-HWQFN (4x4) | 2.3V ~ 5.5V | |
Microchip Technology
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 25mA | POR | I²C | Yes | Through Hole | 16 | -40°C ~ 85°C | Push-Pull | 28-SPDIP | 2V ~ 5.5V | |
NXP Semiconductors
|
Send RFQ |
Price on request
Price and Stock
on Request |
1 MHz | 100µA, 25mA | POR | I²C | Yes | Surface Mount | 8 | -40°C ~ 85°C | Push-Pull | 16-HVQFN (3x3) | 2.3V ~ 5.5V | |
NXP Semiconductors
|
Send RFQ |
Price on request
Price and Stock
on Request |
5 MHz | - | - | SPI Serial | Yes | Surface Mount | 16 (Input Only) | - | Push-Pull | 24-TSSOP | 4.5V ~ 5.5V | |
|
Standard Microsystems
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | - | - | - | - | - | - | |
NXP Semiconductors
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 10mA, 25mA | POR | I²C | Yes | Surface Mount | 16 | -40°C ~ 85°C | Open Drain, Push-Pull | 24-HWQFN (4x4) | 1.65V ~ 5.5V | |
On Semiconductor
|
Send RFQ |
Price on request
Price and Stock
on Request |
100 kHz | 42mA | POR | I²C, SMBus | Yes | Surface Mount | 16 | -55°C ~ 125°C | Push-Pull | 24-SOIC | 1.65V ~ 5.5V | |
|
Microchip Technology
|
Send RFQ |
Price on request
Price and Stock
on Request |
3.4 MHz | 25mA | POR | I²C | Yes | Surface Mount | 16 | -40°C ~ 125°C | Open Drain | 28-SOIC | 1.8V ~ 5.5V | |
Analog Devices / Maxim Integrated
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 31mA, 43mA | POR | I²C, SMBus | Yes | Surface Mount | 16 | -40°C ~ 125°C | Push-Pull | 24-SSOP | 2V ~ 5.5V | |
Microchip Technology
|
Send RFQ |
Price on request
Price and Stock
on Request |
10 MHz | 25mA | POR | SPI | Yes | Surface Mount | 8 | -40°C ~ 125°C | Push-Pull | 18-SOIC | 1.8V ~ 5.5V | |
Nexperia USA Inc.
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 10mA | POR | I²C, SMBus | Yes | Surface Mount | 16 | -40°C ~ 85°C | Open Drain, Push-Pull | 24-TSSOP | 1.65V ~ 5.5V | |
NXP Semiconductors
|
Send RFQ
|
Price on request
Price and Stock
on Request |
5 MHz | - | - | SPI Serial | Yes | Surface Mount | 8 (Input Only) | -40°C ~ 125°C | Push-Pull | 16-TSSOP | 2.5V ~ 5.5V | |
Harris Semiconductor
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | - | - | - | - | - | - | |
Diodes Incorporated
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | - | POR | I²C | Yes | Surface Mount | 16 | -40°C ~ 105°C | Open Drain, Push-Pull | 24-TSSOP | 1.65V ~ 5.5V | |
Texas Instruments
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 10mA, 25mA | POR | I²C, SMBus | Yes | Surface Mount | 16 | -40°C ~ 85°C | Push-Pull | 24-SSOP | 1.65V ~ 5.5V | |
|
Microchip Technology
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 25mA | POR | I²C | Yes | Surface Mount | 16 | -40°C ~ 85°C | Push-Pull | 28-SOIC | 2V ~ 5.5V | |
Catalyst Semiconductor Inc.
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 10mA, 24mA | POR | I²C, SMBus | Yes | Surface Mount | 8 | -40°C ~ 85°C | Push-Pull | 16-TSSOP | 2.3V ~ 5.5V | |
NXP Semiconductors
|
Send RFQ |
Price on request
Price and Stock
on Request |
1 MHz | 100µA, 25mA | POR | I²C | Yes | Surface Mount | 16 | -40°C ~ 85°C | Push-Pull | 24-TSSOP | 2.3V ~ 5.5V | |
Infineon Technologies
|
Send RFQ |
Price on request
Price and Stock
on Request |
100 kHz | 10mA, 25mA | EEPROM, POR, PWM, WDT | I²C | Yes | Surface Mount | 40 | -40°C ~ 85°C | Open Drain | 48-SSOP | 3V ~ 5.25V | |
NXP Semiconductors
|
Send RFQ |
Price on request
Price and Stock
on Request |
1 MHz | 100µA, 25mA | POR | I²C | No | Surface Mount | 16 | -40°C ~ 85°C | Push-Pull | 24-HVQFN (4x4) | 2.3V ~ 5.5V | |
Sanyo Denki
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | Parallel | No | Surface Mount | 24 | -40°C ~ 85°C | CMOS, Open-Drain | 36-MFPSDJ | 2V ~ 6V | |
Analog Devices / Maxim Integrated
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 31mA, 43mA | POR | I²C, SMBus | Yes | Surface Mount | 16 | -40°C ~ 125°C | Push-Pull | 24-SOIC | 2V ~ 5.5V | |
Analog Devices / Maxim Integrated
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 20mA | POR | I²C | Yes | Surface Mount | 4 | -40°C ~ 125°C | Open Drain, Push-Pull | 24-TQFN-EP (3.5x3.5) | 1.71V ~ 5.5V | |
Analog Devices / Maxim Integrated
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 25mA | POR | I²C | Yes | Surface Mount | 8 (Input Only) | -40°C ~ 125°C | - | 16-QSOP | 1.71V ~ 5.5V | |
Texas Instruments
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 10mA, 25mA | POR | I²C, SMBus | Yes | Surface Mount | 16 | -40°C ~ 85°C | Push-Pull | 24-SSOP | 1.65V ~ 5.5V | |
NXP Semiconductors
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 100µA, 25mA | EEPROM, POR | I²C, SMBus | Yes | Surface Mount | 8 | -40°C ~ 85°C | Push-Pull | 20-TSSOP | 2.5V ~ 3.6V | |
Harris Semiconductor
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | - | - | - | - | - | - | |
Microchip Technology
|
Send RFQ |
Price on request
Price and Stock
on Request |
4 MHz | 25mA | EEPROM, POR, PWM | CAN (1-Wire) | No | Through Hole | 8 | -40°C ~ 85°C | Push-Pull | 14-PDIP | 2.7V ~ 5.5V | |
NXP Semiconductors
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 10mA, 25mA | POR | I²C | Yes | Surface Mount | 16 | -40°C ~ 85°C | Push-Pull | 24-SSOP | 2.5V ~ 5.5V | |
Analog Devices / Maxim Integrated
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 20mA | POR | I²C | Yes | Surface Mount | 16 (8 Output Only) | -40°C ~ 125°C | Open Drain, Push-Pull | 24-TQFN (4x4) | 1.71V ~ 5.5V | |
Intersil
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | 2.5mA | Direct Bit Set/Reset | - | Yes | Surface Mount | 24 | -40°C ~ 85°C | - | 44-PLCC (16.58x16.58) | 4.5V ~ 5.5V | |
Texas Instruments
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 10mA, 25mA | POR | I²C, SMBus | Yes | Surface Mount | 16 | -40°C ~ 85°C | Push-Pull | 24-SOIC | 2.3V ~ 5.5V | |
NXP Semiconductors
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | - | - | - | - | - | - | |
Analog Devices / Maxim Integrated
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 50mA | PWM | I²C, SMBus | Yes | Surface Mount | 8 | -40°C ~ 125°C | Open Drain | 16-TQFN-EP (3x3) | 2V ~ 3.6V | |
NXP Semiconductors
|
Send RFQ |
Price on request
Price and Stock
on Request |
1 MHz | 100µA, 25mA | POR | I²C | No | Surface Mount | 8 | -40°C ~ 85°C | Push-Pull | 16-TSSOP | 2.3V ~ 5.5V | |
Analog Devices / Maxim Integrated
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 20mA | POR | I²C | Yes | Surface Mount | 8 | -40°C ~ 125°C | Push-Pull | 24-TQFN (4x4) | 1.71V ~ 5.5V | |
NXP Semiconductors
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | - | - | - | - | - | - | |
|
SparkFun Electronics
|
Send RFQ |
Price on request
Price and Stock
on Request |
1.7 MHz | 3mA | POR | I²C | Yes | Through Hole | 8 | - | Open Drain | 18-PDIP | 1.8V ~ 5.5V | |
NXP Semiconductors
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 100µA, 25mA | POR | I²C | Yes | Surface Mount | 8 | -40°C ~ 85°C | Push-Pull | 16-TSSOP | 2.3V ~ 5.5V | |
Analog Devices / Maxim Integrated
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 31mA, 43mA | POR | I²C, SMBus | Yes | Surface Mount | 16 | -40°C ~ 125°C | Push-Pull | 24-TQFN (4x4) | 2V ~ 5.5V | |
|
Harris Semiconductor
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | - | - | - | - | - | - | |
|
Freescale Semiconductor
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 100µA, 25mA | EEPROM, POR | I²C, SMBus | No | Surface Mount | 8 | -40°C ~ 85°C | Push-Pull | 16-TSSOP | 2.5V ~ 3.6V | |
Analog Devices / Maxim Integrated
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 20mA | POR | I²C | Yes | Surface Mount | 8 | -40°C ~ 125°C | Push-Pull | 24-QSOP | 1.71V ~ 5.5V | |
Texas Instruments
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 10mA, 25mA | POR | I²C, SMBus | Yes | Surface Mount | 8 | -40°C ~ 85°C | Push-Pull | 16-TSSOP | 2.3V ~ 5.5V | |
|
Texas Instruments
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 10mA, 25mA | POR | I²C, SMBus | No | Surface Mount | 4 | -40°C ~ 85°C | Push-Pull | 8-SOIC | 2.3V ~ 5.5V | |
Harris Semiconductor
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | - | - | - | - | - | - | |
Catalyst Semiconductor Inc.
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | - | - | - | - | - | - | |
|
Harris Semiconductor
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | - | - | - | - | - | - | |
NXP Semiconductors
|
Send RFQ |
Price on request
Price and Stock
on Request |
400 kHz | 25mA | POR | I²C | Yes | Surface Mount | 16 | -40°C ~ 85°C | Push-Pull | 24-SSOP | 4.5V ~ 5.5V |
Showing 451-500 of 1,100 products