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
TCA6418EYFPR Texas Instruments IC I/O EXPANDER I2C 18B 25DSBGA 891 $0.00
PCAL9555APW,118 NXP USA Inc. IC GPIO EXPANDER 24TSSOP 841 $0.00
MCP23016T-I/SO Microchip Technology IC I/O EXPANDER I2C 16B 28SOIC 605 $0.00
PCA8574TS,118 NXP USA Inc. IC I/O EXPANDER I2C 8B 20SSOP 350 $0.00
PCA9554DB,118 NXP USA Inc. IC I/O EXPANDER I2C 8B 16SSOP 433 $0.00
PCAL6408APWJ NXP USA Inc. IC I/O EXPANDER 16TSSOP 167 $0.00
PCA9538DGVR Texas Instruments IC I/O EXPANDER I2C 8B 16TVSOP 930 $0.00
MCP23018T-E/SO Microchip Technology IC I/O EXPANDER I2C 16B 28SOIC 229 $0.00
PI4IOE5V9539ZDEX Diodes Incorporated IC I/O EXPANDER 16BIT 24TSSOP 1000 $0.00
PCA9557RGYR Texas Instruments IC I/O EXPANDER I2C 8B 16QFN 988 $0.00