| Image | Part Number | Manufacturer | Description | Series | Operating Temperature | Features | Packaging | Mounting Type | RoHS Status | Manufacturer Part Number | Voltage - Supply | Output Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MAX7316ATE+T | Maxim Integrated | IC I/O EXPANDER I2C 16B 16TQFN | - | -40°C ~ 125°C | PWM | Tape & Reel (TR) | Surface Mount | - | - | 2 V ~ 3.6 V | Open Drain | |
| CMP82C55AZ | Intersil | IC PROG PERIPHERAL INTFC 40DIP | - | 0°C ~ 70°C | - | Tube | Through Hole | - | - | 4.5 V ~ 5.5 V | Open Drain | |
| MAX7301AAX+ | Maxim Integrated | IC I/O EXPANDER SPI 28B 36SSOP | - | -40°C ~ 125°C | - | Tube | Surface Mount | - | - | 2.5 V ~ 5.5 V | Push-Pull | |
| TCA7408ZSZR | N/A | IC I/O EXPANDER I2C 8BIT 16UCSP | - | -40°C ~ 85°C | POR | Cut Tape (CT) | Surface Mount | - | - | 1.65 V ~ 3.6 V | Push-Pull | |
| PCA9554PWRG4 | N/A | IC I/O EXPANDER I2C 8B 16TSSOP | - | -40°C ~ 85°C | POR | Tape & Reel (TR) | Surface Mount | - | - | 2.3 V ~ 5.5 V | Push-Pull | |
| CAT9555HV6I-GT2 | AMI Semiconductor / ON Semiconductor | IC I/O EXPANDER I2C/SMBUS 24TQFN | - | -40°C ~ 85°C | POR | Tape & Reel (TR) | Surface Mount | - | - | 2.3 V ~ 5.5 V | Push-Pull | |
| MCP23S18-E/SP | Micrel / Microchip Technology | IC EXPANDER SPI 16BIT I/O 28SDIP | - | -40°C ~ 125°C | - | Tube | Through Hole | - | - | 1.8 V ~ 5.5 V | Open Drain | |
| PCF8575CRGER | N/A | IC I/O EXPANDER I2C 16B 24VQFN | - | -40°C ~ 85°C | POR | Tape & Reel (TR) | Surface Mount | - | - | 4.5 V ~ 5.5 V | Open Drain | |
| PCA9535D,112 | NXP Semiconductors / Freescale | IC I/O EXPANDER I2C 16B 24SOIC | - | -40°C ~ 85°C | POR | Tube | Surface Mount | - | - | 2.3 V ~ 5.5 V | Push-Pull | |
| TCA6408ARGTR | N/A | IC I/O EXPANDER I2C 8B 16QFN | - | -40°C ~ 85°C | POR | Tape & Reel (TR) | Surface Mount | - | - | 1.65 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.