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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| XRA1200PIG16-F | Exar Corporation | IC I/O PORT EXPANDER I2C 16TSSOP | - | Tube | Surface Mount | 1.65 V ~ 3.6 V | 16-TSSOP (0.173", 4.40mm Width) | - | 16-TSSOP | - | - | |
| CY8C9540A-24PVXIT | Cypress Semiconductor | IC I/O EXPANDER I2C 40B 48SSOP | - | Tape & Reel (TR) | Surface Mount | 3 V ~ 5.25 V | 48-BSSOP (0.295", 7.50mm Width) | CY8C9540 | 48-SSOP | - | - | |
| JLC1562BN | AMI Semiconductor / ON Semiconductor | IC I/O EXPANDER I2C 8B 16DIP | - | Tube | Through Hole | 4.2 V ~ 6 V | 16-DIP (0.300", 7.62mm) | JLC1562 | 16-DIP | - | - | |
| PCA9555BSHP | NXP Semiconductors / Freescale | IC I/O EXPANDER I2C 16B 24HVQFN | - | Tape & Reel (TR) | Surface Mount | 2.3 V ~ 5.5 V | 24-VFQFN Exposed Pad | - | 24-HVQFN (4x4) | - | - | |
| PCA6107DW | N/A | IC I/O EXPANDER I2C 8B 18SOIC | - | Tube | Surface Mount | 2.3 V ~ 5.5 V | 18-SOIC (0.295", 7.50mm Width) | PCA6107 | 18-SOIC | - | - | |
| PCA9534RGVRG4 | N/A | IC I/O EXPANDER I2C 8B 16QFN | - | Tape & Reel (TR) | Surface Mount | 2.3 V ~ 5.5 V | 16-VQFN Exposed Pad | PCA9534 | 16-VQFN (4x4) | - | - | |
| PCA9671BS,118 | NXP Semiconductors / Freescale | IC I/O EXPANDER I2C 16B 24HVQFN | - | Cut Tape (CT) | Surface Mount | 2.3 V ~ 5.5 V | 24-VFQFN Exposed Pad | PCA9671 | 24-HVQFN (4x4) | - | - | |
| CAT9555WI-T1 | AMI Semiconductor / ON Semiconductor | IC I/O EXPANDER I2C 16B 24SOIC | - | Tape & Reel (TR) | Surface Mount | 2.3 V ~ 5.5 V | 24-SOIC (0.295", 7.50mm Width) | CAT9555 | 24-SOIC | - | - | |
| STMPE1600QTR | STMicroelectronics | IC EXPANDER 16BIT 24QFN | Xpander Logic™ | Tape & Reel (TR) | Surface Mount | 1.65 V ~ 3.6 V | 24-VFQFN Exposed Pad | STMPE1600 | 24-QFN | - | - | |
| PCA8574APW,112 | NXP Semiconductors / Freescale | IC I/O EXPANDER I2C 8B 16TSSOP | - | Tube | Surface Mount | 2.3 V ~ 5.5 V | 16-TSSOP (0.173", 4.40mm Width) | PCA8574 | 16-TSSOP | - | - |
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.