I/O Expanders

Devices in this family are used in conjunction with microcontrollers, microprocessors, or similar devices for the purpose of increasing the number of signal connections available for connecting peripheral devices. The typical concept of operation involves the use of serial communications requiring only a few I/O lines on the host device to read/write the status of many input/output pins on the expander device. The technique exchanges speed of communication for increased connectivity, and is best suited for applications where fast response is not critical, such as in many human interface applications.

Part Number Manufacturer Description Quantity Price Option
MCP25055-I/P Microchip Technology IC I/O EXPANDER CAN 8B 14DIP 120 $4.10
PCF8575CDB Texas Instruments IC I/O EXPANDER I2C 16B 24SSOP 236 $3.24
MCP25020-E/SL Microchip Technology IC I/O EXPANDER CAN 8B 14SOIC 117 $3.18
MCP25025-I/SL Microchip Technology IC I/O EXPANDER CAN 8B 14SOIC 171 $2.99
MCP25025-I/P Microchip Technology IC I/O EXPANDER CAN 8B 14DIP 175 $2.99
PCA9534DB Texas Instruments IC I/O EXPANDER I2C 8B 16SSOP 1040 $2.02
PCA9534ARGVR Texas Instruments IC I/O EXPANDER I2C 8B 16QFN 2500 $0.00
MAX7320ATE+ Maxim Integrated IC I/O EXPANDER I2C 8B 16TQFN 197 $3.78
MAX7317ATE+T Maxim Integrated IC I/O EXPANDER SPI 10B 16TQFN 2500 $1.81
PCA9535D,112 NXP USA Inc. IC I/O EXPANDER I2C 16B 24SOIC 1270 $1.77