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
PCA9538ABSHP NXP USA Inc. IC GPIO EXPANDER 8BIT 16HVQFN 24000 $0.57
PCAL6416APW,118 NXP USA Inc. IC I/O EXPANDER 16BIT 24TSSOP 2833 $0.00
MAX7311AWG+T Maxim Integrated IC I/O EXPANDER I2C 16B 24SOIC 1788 $0.00
MAX7327AATG+ Maxim Integrated IC I/O EXPANDER I2C QFN 162 $4.03
AAT4292IJQ-T1 Skyworks Solutions, Inc. IC I/O EXPANDER 7B SC70JW-10 3000 $0.38
PCAL6416AEX1Z NXP USA Inc. LOW-VOLTAGE TRANSLATING 16-BIT I 1040 $1.22
STMPE2401TBR STMicroelectronics IC I/O EXPANDER I2C 24B 36TFBGA 8061 $0.00
PCA9554ADGVR Texas Instruments IC I/O EXPANDER I2C 8B 16TVSOP 0 $0.56
TCA9554ADWR Texas Instruments IC I/O EXPANDER I2C 8BIT 16-SOIC 1690 $0.00
TCA9535DBR Texas Instruments IC I/O EXPANDER 16B 24SSOP 1687 $1.50