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
PCA9674APW,118 NXP USA Inc. IC I/O EXPANDER I2C 8B 16TSSOP 7960 $0.00
PCA9702PW,118 NXP USA Inc. IC SPI GPI 8BIT 18V 16TSSOP 5611 $0.00
PCA9554ABS3,118 NXP USA Inc. IC I/O EXPANDER I2C 8B 16HVQFN 7304 $0.00
PI4IOE5V9554ALEX Diodes Incorporated IC I/O EXPANDER 8-BIT 16TSSOP 2500 $0.00
MAX7322AEE+ Maxim Integrated IC I/O EXPANDER I2C 4B 16QSOP 214 $4.58
MAX7324ATG+ Maxim Integrated IC I/O EXPANDER I2C 8B 24TQFN 226 $4.03
MAX7322ATE+ Maxim Integrated IC I/O EXPANDER I2C 4B 16TQFN 187 $3.88
MAX7323AEE+ Maxim Integrated IC I/O EXPANDER I2C 4B 16QSOP 135 $3.73
MCP25050-I/P Microchip Technology IC I/O EXPANDER CAN 8B 14DIP 182 $3.49
MCP25050-I/SL Microchip Technology IC I/O EXPANDER CAN 8B 14SOIC 292 $3.49