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
PCA9534BS3,118 NXP USA Inc. IC I/O EXPANDER I2C 8B 16HVQFN 5494 $0.00
PCA9554BS,118 NXP USA Inc. IC I/O EXPANDER I2C 8B 16HVQFN 5517 $0.00
PCAL9554BBSHP NXP USA Inc. IC I/O EXPANDER 8BIT 16HVQFN 2933 $0.00
TCA9555PWR Texas Instruments IC I/O EXPANDER I2C 16B 24TSSOP 1772 $0.00
TCA9555DBR Texas Instruments IC I/O EXPANDER 16B 24SSOP 2208 $0.00
TCA9555RGER Texas Instruments IC I/O EXPANDER I2C SMBUS 24VQFN 3478 $0.00
PCAL6408ABSHP NXP USA Inc. IC I/O EXPANDER 8BIT I2C 16HVQFN 9105 $0.00
PCA9538DBR Texas Instruments IC I/O EXPANDER I2C 8B 16SSOP 2049 $0.00
PCA9538DWR Texas Instruments IC I/O EXPANDER I2C 8B 16SOIC 2960 $0.00
PI4IOE5V9535ZDEX Diodes Incorporated IC I/O EXPANDER 16B I2C 24TQFN 3485 $0.00