| Image | Part Number | Manufacturer | Description | Series | Operating Temperature | Features | Packaging | Mounting Type | RoHS Status | Manufacturer Part Number | Voltage - Supply | Output Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MAX7324ATG+T | Maxim Integrated | IC I/O EXPANDER I2C 8B 24TQFN | - | -40°C ~ 125°C | POR | Tape & Reel (TR) | Surface Mount | - | - | 1.71 V ~ 5.5 V | Push-Pull | |
| PCA9557D | N/A | IC I/O EXPANDER I2C 8B 16SOIC | - | -40°C ~ 85°C | POR | Tube | Surface Mount | - | - | 2.3 V ~ 5.5 V | Open Drain, Push-Pull | |
| PCA9535PW | N/A | IC I/O EXPANDER I2C 16B 24TSSOP | - | -40°C ~ 85°C | POR | Tube | Surface Mount | - | - | 2.3 V ~ 5.5 V | Push-Pull | |
| PCA8574PW,112 | NXP Semiconductors / Freescale | IC I/O EXPANDER I2C 8B 16TSSOP | - | -40°C ~ 85°C | POR | Tube | Surface Mount | - | - | 2.3 V ~ 5.5 V | Push-Pull | |
| PI4IOE5V9536UEX | Diodes Incorporated | IC I/O EXPANDER 4BIT 8MSOP | - | -40°C ~ 85°C | POR | Tape & Reel (TR) | Surface Mount | - | - | 2.3 V ~ 5.5 V | - | |
| TCA9535RTWR | N/A | IC I/O EXPANDER I2C 16B 24WQFN | - | -40°C ~ 85°C | POR | Tape & Reel (TR) | Surface Mount | - | - | 1.65 V ~ 5.5 V | Push-Pull | |
| MAX7315AEE+ | Maxim Integrated | IC I/O EXPANDER I2C 8B 16QSOP | - | -40°C ~ 125°C | PWM | Tube | Surface Mount | - | - | 2 V ~ 3.6 V | Open Drain | |
| CS82C55A | Intersil | IC I/O EXPANDER 24B 44PLCC | - | 0°C ~ 70°C | - | Tube | Surface Mount | - | - | 4.5 V ~ 5.5 V | Open Drain | |
| XRA1404IL16MTR-F | Exar Corporation | IC I/O PORT EXPANDER 8 BIT SPI G | - | -40°C ~ 85°C | - | - | - | - | - | 1.65 V ~ 3.6 V | Open Drain | |
| MCP25050-E/P | Micrel / Microchip Technology | IC I/O EXPANDER CAN 8B 14DIP | - | -40°C ~ 125°C | ADC, EEPROM, POR, PWM | Tube | Through Hole | - | - | 4.5 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.