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NCA6416 - Low-voltage translating 16-bit I2C-bus/SMBus I/O expander

General Description

The NCA6416 is a versatile 16-bit general-purpose I/ O expander designed for microcontrollers that need additional I/O pins.

Key Features

  • I²C-bus to parallel port expander.
  • Supply voltage range of 1.65 V to 5.5 V.
  • Allows bidirectional voltage-level translation and GPIO expansion between:.
  • 1.8 V SCL/SDA and 1.8 V, 2.5 V, 3.3 V or 5 V Port P.
  • 2.5 V SCL/SDA and 1.8 V, 2.5 V, 3.3 V or 5 V Port P.
  • 3.3 V SCL/SDA and 1.8 V, 2.5 V, 3.3 V or 5 V Port P.
  • 5 V SCL/SDA and 1.8 V, 2.5 V, 3.3 V or 5 V Port P.
  • Low standby current consumption:.
  • 1.5 μA typical at 5 V.

📥 Download Datasheet

Datasheet Details

Part number NCA6416
Manufacturer Nexperia
File Size 1.27 MB
Description Low-voltage translating 16-bit I2C-bus/SMBus I/O expander
Datasheet download datasheet NCA6416 Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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.