MCP23008 - i2c 8 input/output port expander : ID 593 : $1.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Expand 8 Click | Mikroe
Port Expander Library
MikroElektronika - Port Expander Board - MCP23S17 Development Tool
MCP23S17 I/O expander as SPI CS pin selector issue - LEDs and Multiplexing - Arduino Forum
Mcp23s17 Bidirectional 16-bit I/o Expander Spi Serial Interface Shield Module I2c Interface 10 Mhz Max High Speed Board - Integrated Circuits - AliExpress
MCP23017 serial Interface module IIC I2C 16-bit I/O expander pins 10MH – eElectronicParts
Port Expanders Extend MCU Functionality | DigiKey
8-bit I/O Expander with I2C-Bus/SPI Interface - EEWeb
MAX7313 16-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection | Analog Devices
MCP23017 Serial Interface Module IIC I2C SPI MCP23S17 Bidirectional 16 Bit I/O Expander Pins 10Mhz Serial Interface Module|module i2c|c c - AliExpress
IO expander board - Electronics-Lab.com
Mcp23017 Serial Interface Module Iic I2c Spi Mcp23s17 Bidirectional 16-bit I/o Expander Pins 10mhz Serial Interface Module - Integrated Circuits - AliExpress
IO-Port Expanders Offer Flexibility in MCU Designs | DigiKey
![Microchip MCP23S17 SPI Port Expander 5 volts [SPL-002006] - $1.89 : SpikenzieLabs, Great electronics kits](https://www.spikenzielabs.com/Catalog/images/medium/LabsImages/SPL002006A_MED.jpg "Microchip MCP23S17 SPI Port Expander 5 volts [SPL-002006] - $1.89 : SpikenzieLabs, Great electronics kits")
Microchip MCP23S17 SPI Port Expander 5 volts [SPL-002006] - $1.89 : SpikenzieLabs, Great electronics kits
Port Expander ece4760
MCP23S17 Bidirectional 16-Bit I/O Expander SPI Serial Interface Shield Module d | eBay
I2C to GPIO IO Expander Breaktout Board CH423 - ElectroDragon
Mcp23017 Serial Interface Module Iic I2c Spi Mcp23s17 Bidirectional 16-bit I/o Expander Pins 10mhz Serial Interface Module - Replacement Parts - AliExpress
7I50 SPI I/O expander
MAX7301AAX+T - Analog Devices - I/O Expander, 26 MHz, SPI
MCP23S17 16-Bit I/O Expander SPI - ProtoSupplies
Nettigo: MCP23S08-E/P - 8-bit SPI I/O expander
PCA9502BS | NXP Semiconductors
I²C and SPI GPIO Expanders - Exar Corporation | DigiKey
Using Multiple IO Expander MCP23S08 Address Issue - Networking, Protocols, and Devices - Arduino Forum
PIC32MX and Microchip MCP23S17 I/O Expander SPI Communications
Port Expander Library
8-Bit I/O Expander with SPI Interface - EEWeb
