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| Image | Part Number | Manufacturer | Description | Series | Packaging | Mounting Type | Voltage - Supply | Package / Case | Base Part Number | Supplier Device Package | Data Format | Baud Rates |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9554APW,118 | NXP Semiconductors / Freescale | IC I/O EXPANDER I2C 8B 16TSSOP | - | Tape & Reel (TR) | Surface Mount | 2.3 V ~ 5.5 V | 16-TSSOP (0.173", 4.40mm Width) | PCA9554 | 16-TSSOP | - | - | |
| PCA9554ABS,118 | NXP Semiconductors / Freescale | IC I/O EXPANDER I2C 8B 16HVQFN | - | Tape & Reel (TR) | Surface Mount | 2.3 V ~ 5.5 V | 16-VQFN Exposed Pad | PCA9554 | 16-HVQFN (4x4) | - | - | |
| PCA9534ADGVR | N/A | IC I/O EXPANDER I2C 8B 16TVSOP | - | Tape & Reel (TR) | Surface Mount | 2.3 V ~ 5.5 V | 16-TFSOP (0.173", 4.40mm Width) | PCA9534A | 16-TVSOP | - | - | |
| MAX7315ATE+T | Maxim Integrated | IC I/O EXPANDER I2C 8B 16TQFN | - | Tape & Reel (TR) | Surface Mount | 2 V ~ 3.6 V | 16-WFQFN Exposed Pad | MAX7315 | 16-TQFN (3x3) | - | - | |
| PCA9675PW,118 | NXP Semiconductors / Freescale | IC I/O EXPANDER I2C 16B 24TSSOP | - | Tape & Reel (TR) | Surface Mount | 2.3 V ~ 5.5 V | 24-TSSOP (0.173", 4.40mm Width) | PCA9675 | 24-TSSOP | - | - | |
| MCP23S08-E/SO | Micrel / Microchip Technology | IC I/O EXPANDER SPI 8B 18SOIC | - | Tube | Surface Mount | 1.8 V ~ 5.5 V | 18-SOIC (0.295", 7.50mm Width) | MCP23S08 | 18-SOIC | - | - | |
| SX1503I091TRT | Semtech | IC GPIO EXPANDER I2C 16CH 28-QFN | - | Tape & Reel (TR) | Surface Mount | 1.2 V ~ 5.5 V | 28-UFQFN Exposed Pad | - | 28-QFN (4x4) | - | - | |
| XRA1200PIG16TR-F | Exar Corporation | IC I/O PORT EXPANDER 8 BIT I2C G | - | - | - | 1.65 V ~ 3.6 V | - | - | - | - | - | |
| XRA1405IL24TR-F | Exar Corporation | IC I/O PORT EXPANDER 16 BIT SPI | - | - | - | 1.65 V ~ 3.6 V | - | - | - | - | - | |
| MAX7314AEG+ | Maxim Integrated | IC I/O EXPANDER I2C 16B 24QSOP | - | Tube | Surface Mount | 2 V ~ 3.6 V | 24-SSOP (0.154", 3.90mm Width) | MAX7314 | 24-QSOP | - | - |
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.