ML56LD1AE

Introduction

The Nuvoton NuMicro® ML56LD1AE is a member of the Low Power Touch Key ML56 Series, which is designed to provide a robust and power-efficient solution for applications that require touch sensing and display management. It leverages the proven 1T 8051 core and is equipped with a range of features making it suitable for a broad range of applications, including home appliances, thermostats, and handheld meters.

Function & Applications

The ML56LD1AE integrates advanced capacitive touch sensing capabilities supporting up to 6 touch keys plus 1 reference pin, ensuring high sensitivity and noise immunity. Additionally, the built-in LCD driver can effectively control display panels with various configurations. It provides flexibility in display driving with its support for Internal resistor bias, capacitor bias, and programmable internal VLCD charge pump mode.

This microcontroller is ideal for measurement devices, home application human-machine interfaces (HMIs), thermostats, and other consumer electronics where touch input and display are crucial.

Performance Parameters

The core runs at up to 24 MHz and supports a wide voltage range of 1.8V to 3.6V. The microcontroller also boasts a 64 Kbytes Flash memory and 4 Kbytes SRAM. Clock control is versatile, with both high-speed and low-power oscillator options and proprietary software trim functions to maintain accuracy. Power management is optimized for efficiency, with various modes to reduce consumption, making it suitable for battery-powered devices.

The LCD driver and touch key controller are powerful, with support for multiple commons and segment configurations and programmable sensitivity respectively. Other key peripherals include a 4-channel PDMA controller, RTC with calendar and alarm functions, PWM with up to 12 channels, a 10-channel 12-bit SAR ADC, and comparators.

Package Types, Interface & Pin Configuration

The ML56LD1AE is available in an LQFP48 package, which includes up to 42 general-purpose I/O pins. It also includes UART, SPI, I²C interfaces, and Smart Card interface, making it versatile for communicating with various peripherals and devices.

Reliability & Lifespan

This microcontroller operates reliably within the temperature range of -40 ℃ to 105 ℃, assuring stability across diverse environments. The inbuilt Flash memory is for self-testing, enhancing the reliability of this product.

Standards & Certifications

Nuvoton's products adhere to stringent industry standards, although the exact certifications applicable to the ML56LD1AE would need to be confirmed with the manufacturer or relevant product documentation.

Application Cases & Reference Designs

The ML56LD1AE is well-suited to applications within home appliances for touch-enabled interfaces, adjustable thermostats for climate control, and handheld meters for various measurement tasks. Nuvoton offers reference designs and development tools, like the NuSenadj touch key calibration tool, to accelerate development and ease integration into customer projects.

Nuvoton continued support with comprehensive development tools ensures a smoother integration process for designers aiming to incorporate ML56LD1AE into their application, providing a path from prototype to mass production.