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
PCA9554CBSHP NXP USA Inc. IC I/O EXPANDER I2C 16HVQFN 0 $0.57
PCA9554BBSHP NXP USA Inc. IC I/O EXPANDER I2C 16HVQFN 0 $0.00
PCA6416AEVJ NXP USA Inc. IC I/O EXPANDER 16BIT 24VFBGA 0 $0.00
IMQ82C55AZ96 Renesas Electronics America Inc. IC I/O EXPANDER 24B 44MQFP 0 $14.47
IMQ82C55AZ Renesas Electronics America Inc. IC I/O EXPANDER 24B 44MQFP 0 $14.47
IQ82C55AZ96 Renesas Electronics America Inc. IC I/O EXPANDER 24B 44MQFP 0 $14.15
IQ82C55AZ Renesas Electronics America Inc. IC I/O EXPANDER 24B 44MQFP 0 $14.15
IMS82C55AZ96 Renesas Electronics America Inc. IC I/O EXPANDER 24B 44PLCC 0 $13.51
IMS82C55AZ Renesas Electronics America Inc. IC I/O EXPANDER 24B 44PLCC 0 $13.51
IS82C55A-5Z Renesas Electronics America Inc. IC I/O EXPANDER 24B 44PLCC 0 $10.99