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
PCA9554BPWJ NXP USA Inc. IC GPIO EXPANDER 16TSSOP 0 $0.00
MCP23018-E/SS Microchip Technology IC I/O EXPANDER I2C 16B 24SSOP 0 $1.71
PCAL9535APW,118 NXP USA Inc. IC I/O PORT 16BIT 24TSSOP 3 $0.00
PCA9555PW,118 NXP USA Inc. IC I/O EXPANDER I2C 16B 24TSSOP 5 $0.00
PCA9554BS3,118 NXP USA Inc. IC I/O EXPANDER 8BIT 16HVQFN 0 $0.00
PI4IOE5V6408ZTAEX Diodes Incorporated INTERFACE IO EXPANDER U-QFN2618- 41 $0.00
IS82C55AZ96 Renesas Electronics America Inc. IC I/O EXPANDER 24B 44PLCC 20 $0.00
MAX7318ATG+ Maxim Integrated IC I/O EXPANDER I2C 16B 24TQFN 0 $4.83
MCP23S17-E/SP Microchip Technology IC I/O EXPANDER SPI 16B 28SDIP 0 $1.30
SX1503I091TRT Semtech Corporation IC GPIO EXPANDER I2C 16CH 28-QFN 0 $0.00