Interface - I/O Expanders

Interface - I/O Expanders

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Image Part Number Manufacturer Description Series Operating Temperature Features Packaging Mounting Type RoHS Status Manufacturer Part Number Voltage - Supply Output Type
PCA9538APWJ NXP Semiconductors / Freescale IC GPIO EXPANDER 8BIT 16TSSOP - -40°C ~ 85°C POR Original-Reel® Surface Mount - - 1.65 V ~ 5.5 V Push-Pull
W83L603G Nuvoton Technology Corporation America IC I/O EXPANDER SMBUS 8B 14SOIC - 0°C ~ 70°C Buzzer Outputs, LED Outputs, POR Tube Surface Mount - - 3.3V Open Drain, Push-Pull
PCF8574TS/3,118 NXP Semiconductors / Freescale IC I/O EXPANDER I2C 8B 20SSOP - -40°C ~ 85°C POR Cut Tape (CT) Surface Mount - - 2.5 V ~ 6 V Push-Pull
MCP23016T-I/SO Micrel / Microchip Technology IC I/O EXPANDER I2C 16B 28SOIC - -40°C ~ 85°C POR Tape & Reel (TR) Surface Mount - - 2 V ~ 5.5 V Push-Pull
MCP23S08-E/P Micrel / Microchip Technology IC I/O EXPANDER SPI 8B 18DIP - -40°C ~ 125°C POR Tube Through Hole - - 1.8 V ~ 5.5 V Push-Pull
MIC74BQS-TR Micrel / Microchip Technology IC I/O EXPANDER I2C 8B 16QSOP - -40°C ~ 85°C Fan Speed Controller Tape & Reel (TR) Surface Mount - - 2.7 V ~ 3.6 V Open Drain, Push-Pull
MCP23S09-E/MG Micrel / Microchip Technology IC I/O EXPANDER SPI 8B 16QFN - -40°C ~ 125°C - Tube Surface Mount - - 1.8 V ~ 5.5 V Open Drain
XRA1404IG16-F Exar Corporation IC I/O EXPANDER SPI 8B 16TSSOP - -40°C ~ 85°C - Tube Surface Mount - - 1.65 V ~ 3.6 V Open Drain
PCF8575DB N/A IC I/O EXPANDER I2C 16B 24SSOP - -40°C ~ 85°C POR Tube Surface Mount - - 2.5 V ~ 5.5 V Push-Pull
PCF8574APW N/A IC I/O EXPANDER I2C 8B 20TSSOP - -40°C ~ 85°C POR Tube Surface Mount - - 2.5 V ~ 6 V Push-Pull

About Interface - I/O Expanders


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.