| Image | Part Number | Manufacturer | Description | Series | Operating Temperature | Features | Packaging | Mounting Type | RoHS Status | Manufacturer Part Number | Voltage - Supply | Output Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCF8575DBQR | N/A | IC I/O EXPANDER I2C 16B 24QSOP | - | -40°C ~ 85°C | POR | Original-Reel® | Surface Mount | - | - | 2.5 V ~ 5.5 V | Push-Pull | |
| TCA9534ADWR | N/A | IC I/O EXPANDER I2C 8B 16SOIC | - | -40°C ~ 85°C | - | Tape & Reel (TR) | Surface Mount | - | - | 1.65 V ~ 5.5 V | Push-Pull | |
| CY8C9560A-24AXIT | Cypress Semiconductor | IC I/O EXPANDER I2C 60B 100LQFP | - | -40°C ~ 85°C | EEPROM, POR, PWM, WDT | Tape & Reel (TR) | Surface Mount | - | - | 3 V ~ 5.25 V | Open Drain | |
| TCA9554DBR | N/A | IC SMBUS I/O EXPANDER I2C 16SSOP | - | -40°C ~ 85°C | POR | Tape & Reel (TR) | Surface Mount | - | - | 1.65 V ~ 5.5 V | Push-Pull | |
| MAX7316AEE+ | Maxim Integrated | IC I/O EXPANDER I2C 16B 16QSOP | - | -40°C ~ 125°C | PWM | Tube | Surface Mount | - | - | 2 V ~ 3.6 V | Open Drain | |
| TCA6416ARTWR | 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 | |
| PCA9535DBG4 | N/A | IC I/O EXPANDER I2C 16B 24SSOP | - | -40°C ~ 85°C | POR | Tube | Surface Mount | - | - | 2.3 V ~ 5.5 V | Push-Pull | |
| CAT9555HV6I-G | AMI Semiconductor / ON Semiconductor | IC I/O EXPANDER 16BI 2C 24TQFN | - | -40°C ~ 85°C | POR | Tube | Surface Mount | - | - | 2.3 V ~ 5.5 V | Push-Pull | |
| DS2408S+ | Maxim Integrated | IC SWITCH 8-CHAN ADDRESS 16SOIC | - | -40°C ~ 85°C | - | Tube | Surface Mount | - | - | 2.8 V ~ 5.25 V | Open Drain | |
| MCP23016-I/SO | Micrel / Microchip Technology | IC I/O EXPANDER I2C 16B 28SOIC | - | -40°C ~ 85°C | POR | Tube | Surface Mount | - | - | 2 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.