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.


Texas Instruments PCF8575PWRE4

IC I/O EXPANDER I2C 16B 24TSSOP

1.09

Texas Instruments PCF8575DBQRG4

IC I/O EXPANDER I2C 16B 24QSOP

1.09

Texas Instruments PCA9535DBQR

IC I/O EXPANDER I2C 16B 24QSOP

0

ON Semiconductor NLVPCA9535EMTTXG

IC I/O PORT EXPANDER 16BIT 24QFN

1.04

Texas Instruments PCA9554PWR

IC I/O EXPANDER I2C 8B 16TSSOP

0

Texas Instruments PCA9554PWRG4

IC I/O EXPANDER I2C 8B 16TSSOP

1.01

Texas Instruments PCA9557PWT

IC I/O EXPANDER I2C 8B 16TSSOP

0.99

Texas Instruments PCA9539DBQR

IC I/O EXPANDER I2C 16B 24SSOP

0