The PCA9554DBR is a high-end, innovative product that is designed to provide optimal performance and superior functionality from Texas Instruments.

• Key Feature: 8-bit I2C and SMBus I/O expander optimized for low voltage applications.
• Operating Voltage: 2.3V to 5.5V.
• Interrupt Output: Configurable to alert microcontroller of input state changes.
• Reset Input: Active-low reset input for register initialization.
• Internal Oscillator: Eliminates need for external components.
• I/O Pins: Eight programmable I/O pins.
• Package: Small, surface-mount SSOP.
• Compliance: RoHS compliant and supports the green initiative.