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
SX1509QBIULTRT Semtech Corporation IC GPIO EXPANDER I2C 16CH 28QFN 5190 $0.00
PCA9671BS,118 NXP USA Inc. IC I/O EXPANDER I2C 16B 24HVQFN 7510 $0.00
PCA9500BS,118 NXP USA Inc. IC I/O EXPANDER I2C 8B 16HVQFN 6166 $0.00
PCA9535D,118 NXP USA Inc. IC I/O EXPANDER I2C 16B 24SOIC 3982 $0.00
PCA9701PW,118 NXP USA Inc. IC SPI GPI 16-BIT 24-TSSOP 3473 $0.00
PCA9534D,118 NXP USA Inc. IC I/O EXPANDER I2C 8B 16SOIC 7187 $0.00
PCAL9554BPWJ NXP USA Inc. IC GPIO EXPANDER 16TSSOP 2707 $0.00
PCA8574PW,118 NXP USA Inc. IC I/O EXPANDER I2C 8B 16TSSOP 14723 $0.00
PCF8574ATS/3,118 NXP USA Inc. IC I/O EXPANDER I2C 8B 20SSOP 7544 $0.00
PCA8574APW,118 NXP USA Inc. IC I/O EXPANDER I2C 8B 16TSSOP 10188 $0.00