PCA9554; PCA9554A 8-bit I2C-bus and SMBus I/O por.
NXP
PCA9554A - 8-bit I2C and SMBus I/O port
PCA9554; PCA9554A 8-bit I2C-bus and SMBus I/O port with interrupt Rev. 10 — 8 November 2017 Product data sheet 1. General description The PCA9554 .
Texas Instruments
PCA9554A - Remote 8-Bit I2C and SMBus I/O Expander
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community PCA9554A SCPS127E – SEPTEMBER 2006 – REVISED JUNE 2014 PCA95.