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
PCA9534APWR Texas Instruments IC I/O EXPANDER I2C 8B 16TSSOP 39543 $0.00
PCA9534PWR Texas Instruments IC I/O EXPANDER I2C 8B 16TSSOP 45911 $0.00
TCA9539QPWRQ1 Texas Instruments IC I/O EXPANDER I2C 16BIT 24TSSO 5442 $0.00
PCA9538PWR Texas Instruments IC I/O EXPANDER I2C 8B 16TSSOP 4048 $0.00
PCF8574RGTR Texas Instruments IC I/O EXPANDER I2C 8B 16VQFN 5184 $0.00
PCF8574DWR Texas Instruments IC I/O EXPANDER I2C 8B 16SOIC 4995 $0.00
PCF8574PWR Texas Instruments IC I/O EXPANDER I2C 8B 20TSSOP 6834 $0.00
TCA6416APWR Texas Instruments IC I/O EXPANDER I2C 16B 24TSSOP 16962 $0.00
TCA6416ARTWR Texas Instruments IC I/O EXPANDER I2C 16B 24WQFN 54470 $0.00
TCA9555RTWR Texas Instruments IC I/O EXPANDER I2C 16B 24WQFN 53006 $0.00