| Image | Part Number | Manufacturer | Description | Series | Operating Temperature | Features | Packaging | Mounting Type | RoHS Status | Manufacturer Part Number | Voltage - Supply | Output Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9539D,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 | |
| CAT9554YI-GT2 | AMI Semiconductor / ON Semiconductor | IC I/O EXPANDER I2C 8B 16TSSOP | - | -40°C ~ 85°C | POR | Cut Tape (CT) | Surface Mount | - | - | 2.3 V ~ 5.5 V | Push-Pull | |
| PCA9554DB,118 | NXP Semiconductors / Freescale | IC I/O EXPANDER I2C 8B 16SSOP | - | -40°C ~ 85°C | POR | Tape & Reel (TR) | Surface Mount | - | - | 2.3 V ~ 5.5 V | Push-Pull | |
| MAX7315ATE+ | Maxim Integrated | IC I/O EXPANDER I2C 8B 16TQFN | - | -40°C ~ 125°C | PWM | Tube | Surface Mount | - | - | 2 V ~ 3.6 V | Open Drain | |
| PCA8574PW,118 | NXP Semiconductors / Freescale | IC I/O EXPANDER I2C 8B 16TSSOP | - | -40°C ~ 85°C | POR | Cut Tape (CT) | Surface Mount | - | - | 2.3 V ~ 5.5 V | Push-Pull | |
| MCP23S08T-E/SS | Micrel / Microchip Technology | IC I/O EXPANDER SPI 8B 20SSOP | - | -40°C ~ 125°C | POR | Tape & Reel (TR) | Surface Mount | - | - | 1.8 V ~ 5.5 V | Push-Pull | |
| XRA1200PIG16-F | Exar Corporation | IC I/O PORT EXPANDER I2C 16TSSOP | - | -40°C ~ 85°C | - | Tube | Surface Mount | - | - | 1.65 V ~ 3.6 V | Open Drain | |
| CY8C9540A-24PVXIT | Cypress Semiconductor | IC I/O EXPANDER I2C 40B 48SSOP | - | -40°C ~ 85°C | EEPROM, POR, PWM, WDT | Tape & Reel (TR) | Surface Mount | - | - | 3 V ~ 5.25 V | Open Drain | |
| JLC1562BN | AMI Semiconductor / ON Semiconductor | IC I/O EXPANDER I2C 8B 16DIP | - | -40°C ~ 85°C | DAC, POR | Tube | Through Hole | - | - | 4.2 V ~ 6 V | Open Drain | |
| PCA9555BSHP | NXP Semiconductors / Freescale | IC I/O EXPANDER I2C 16B 24HVQFN | - | -40°C ~ 85°C | POR | Tape & Reel (TR) | Surface Mount | - | - | 2.3 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.