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
PCAL6534EVJ NXP USA Inc. IC GPIO EXPANDER 34B VFBGA42 4963 $0.00
MAX7315AUE+T Maxim Integrated IC I/O EXPANDER I2C 8B 16TSSOP 2175 $0.00
TCA6424RGJR Texas Instruments IC I/O EXPANDER I2C 24B 32QFN 757 $0.00
PCF8575CDBQR Texas Instruments IC I/O EXPANDER I2C 16B 24SSOP 1799 $0.00
PCF8575CDWR Texas Instruments IC I/O EXPANDER I2C 16B 24SOIC 3074 $0.00
PCF8575CDBR Texas Instruments IC I/O EXPANDER I2C 16B 24SSOP 4439 $0.00
PCF8575CPWR Texas Instruments IC I/O EXPANDER I2C 16B 24TSSOP 6547 $0.00
ADP5587ACPZ-1-R7 Analog Devices, Inc. IC I/O EXPANDER/KEYBRD CTRLR 1391 $0.00
ADP5587ACBZ-R7 Analog Devices, Inc. IC I/O EXPANDER/KEYBRD CTRLR 1420 $0.00
PCF8575CRGER Texas Instruments IC I/O EXPANDER I2C 16B 24VQFN 11644 $0.00