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NCA6416
Low-voltage translating 16-bit I²C-bus/SMBus I/O expander
Rev. 1 — 20 August 2025
Product data sheet
1. General description
The NCA6416 is a versatile 16-bit general-purpose I/ O expander designed for microcontrollers that need additional I/O pins. It communicates 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.