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
PCA9537DP,118 NXP USA Inc. IC I/O EXPANDER I2C 4B 10TSSOP 29947 $1.33
PCA9536D,118 NXP USA Inc. IC I/O EXPANDER I2C 4B 8SOIC 9161 $0.00
CQ82C55AZ Renesas Electronics America Inc. IC I/O EXPANDER 24B 44MQFP 129 $10.79
MAX7311AWG+ Maxim Integrated IC I/O EXPANDER I2C 16B 24SOIC 1091 $6.35
MAX7300AAI+ Maxim Integrated IC I/O EXPANDER I2C 28B 28SSOP 102 $6.33
MAX7311AAG+ Maxim Integrated IC I/O EXPANDER I2C 16B 24SSOP 760 $5.90
PCA9698DGG,512 NXP USA Inc. IC I/O EXPANDER I2C 40B 56TSSOP 2235 $4.94
MAX7318AAG+ Maxim Integrated IC I/O EXPANDER I2C 16B 24SSOP 261 $4.83
MAX7313AEG+ Maxim Integrated IC I/O EXPANDER I2C 16B 24QSOP 376 $4.76
MAX7310AUE+ Maxim Integrated IC I/O EXPANDER I2C 8B 16TSSOP 1090 $4.41