PCA9554/PCA9554A - 8-bit I²C-bus and SMBus I/O port with interrupt SOP 16-Pin
16-Ch I2C/SMBus I/O Expander, 400kHz, 5.5V, SOIC
8-Channel I2C/SMBus I/O Expander, 400kHz, SO Package
IC I/O EXPANDER I2C 8B 16SSOP
Parallel Bus to I2C Bus Controller Parallel/I2C/SMBus Interface 2.5V/3.3V 20-Pin SO T/R
PCA9557D.118