8-Channel I2C/SMBus I/O Expander, 5.5V, 200mW, VQCCN-16
PCAL9554B; PCAL9554C - Low-voltage 8-bit I²C-bus and SMBus low power I/O port with interrupt, weak pull-up and Agile I/O QFN 16-Pin
PCA9554B; PCA9554C - Low-voltage 8-bit I²C-bus and SMBus low power I/O port with interrupt, weak pull-up QFN 16-Pin