NCA6416
description
The NCA6416 is a versatile 16-bit general-purpose I/ O expander designed for microcontrollers that need additional I/O pins. It municates via an I²C-bus interface, making it ideal for applications with minimal space and wiring, such as battery-powered devices using sensors, keypads, push buttons or LED control for managing LED brightness.
Nexperia's I/O expanders feature a dual power supply architecture with two inputs: VCCI and VCCP. This design enables seamless level translation, supporting mixed-voltage environments. VCCI powers the I²C interface and must be connected to the same voltage as the host microcontroller's I²C bus (SDA/SCL), which can range from 1.65 V to 5.5 V. VCCP powers the internal core and the I/O pins on Port P, defining the voltage level for the connected peripherals. This allows a low-voltage microcontroller to interface with highervoltage peripherals without additional external circuitry.
The NCA6416 contains four pairs of 8-bit registers:...
