| Image | Part Number | Manufacturer | Description | Series | Operating Temperature | Features | Packaging | Mounting Type | RoHS Status | Manufacturer Part Number | Voltage - Supply | Output Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MAX7300ATI+T | Maxim Integrated | IC I/O EXPANDER I2C QFN | - | -40°C ~ 125°C | - | Tape & Reel (TR) | Surface Mount | - | - | 2.5 V ~ 5.5 V | Push-Pull | |
| PCA6408ABSHP | NXP Semiconductors / Freescale | IC I/O EXPANDER 8BIT I2C 16HVQFN | - | -40°C ~ 85°C | POR | Cut Tape (CT) | Surface Mount | - | - | 1.65 V ~ 5.5 V | Push-Pull | |
| XRA1402IL16MTR-F | Exar Corporation | IC I/O PORT EXPANDER 8 BIT SPI G | - | -40°C ~ 85°C | - | - | - | - | - | 1.65 V ~ 3.6 V | Open Drain | |
| MAX7301AAI+T | Maxim Integrated | IC I/O EXPANDER SPI 20B 28SSOP | - | -40°C ~ 125°C | - | Tape & Reel (TR) | Surface Mount | - | - | 2.5 V ~ 5.5 V | Push-Pull | |
| XRA1402IG16TR-F | Exar Corporation | IC I/O PORT EXPANDER 8 BIT SPI G | - | -40°C ~ 85°C | - | - | - | - | - | 1.65 V ~ 3.6 V | Open Drain | |
| MCP23S08T-E/SO | Micrel / Microchip Technology | IC I/O EXPANDER SPI 8B 18SOIC | - | -40°C ~ 125°C | POR | Tape & Reel (TR) | Surface Mount | - | - | 1.8 V ~ 5.5 V | Push-Pull | |
| MCP25055-I/P | Micrel / Microchip Technology | IC I/O EXPANDER CAN 8B 14DIP | - | -40°C ~ 85°C | ADC, EEPROM, POR, PWM | Tube | Through Hole | - | - | 2.7 V ~ 5.5 V | Push-Pull | |
| CS82C55AZ96S2705 | Intersil | IC I/O EXPANDER 24B 44PLCC | - | 0°C ~ 70°C | - | - | - | - | - | 4.5 V ~ 5.5 V | Open Drain | |
| PCA9535DWR | N/A | IC I/O EXPANDER I2C 16B 24SOIC | - | -40°C ~ 85°C | POR | Tape & Reel (TR) | Surface Mount | - | - | 2.3 V ~ 5.5 V | Push-Pull | |
| MCP25025-I/SL | Micrel / Microchip Technology | IC I/O EXPANDER CAN 8B 14SOIC | - | -40°C ~ 85°C | EEPROM, POR, PWM | Tube | Surface Mount | - | - | 2.7 V ~ 5.5 V | Push-Pull |
I/O expanders are integrated circuits or modules used to increase the number of input and output (I/O) pins available to a microcontroller or other digital device. They typically use serial communication interfaces such as I2C or SPI to communicate with the host controller and provide additional GPIO (General Purpose Input/Output) pins for connecting sensors, actuators, and other peripherals. I/O expanders are commonly used in embedded systems, IoT (Internet of Things) devices, and industrial automation applications where the number of available I/O pins on the microcontroller is limited.