PCA9554D: 8-Bit I2C and SMBus I/O Port Expander by NXP USA Inc. - Features, Specifications, and Applications 2025-04-21 Discover the PCA9554D, an 8-bit I2C and SMBus I/O port expander by NXP USA Inc. Learn about its features, technical specifications, and applications in consumer electronics, industrial automation, and automotive systems.
