M451LC3AE

Introduction
The NuMicro® M451LC3AE microcontroller is part of the M451 Base series from Nuvoton, which is recognized for its high-performance mixed-signal functionality. It is equipped with an ARM® Cortex®-M4 core, which is well-suited for a multitude of industrial and consumer applications. This MCU operates in an extensive voltage range of 2.5V to 5.5V and can withstand temperamental climates with an operational temperature range of - 40 °C to 105 °C.

Function & Applications
The M451LC3AE excels in complex processing tasks thanks to its ARM® Cortex®-M4 core accompanied with DSP and FPU. It is designed for demanding applications such as Industrial Automation, PLCs (Programmable Logic Controllers), Inverters, Home Automation systems, Portable Data Collectors, Smart Card Readers, and Motor Control systems, among others. Its flexible connectivity options, robust memory architecture, and rich set of peripherals make it perfect for applications requiring data acquisition, real-time control, and efficient data processing.

Performance Parameters
This microcontroller offers a maximum frequency of 72 MHz and provides various memory configurations with 40 KB of Flash Memory, 16 KB of SRAM, and configurable Data Flash. The numerous peripheral features include a 12-bit ADC supporting up to 16 channels, a 12-bit DAC, and 16-bit PWM capability across 12 channels. It is complemented by an array of timers, various communications protocols like UART, SPI, I²C, highly desired interfaces for audio applications like I²S, and security features including a CRC engine for data integrity.

Package Types, Interface & Pin Configuration
Nuvoton has made the M451LC3AE MCU available in the package LQFP48 which offers design flexibility to accommodate diverse board sizes and complexities. Its versatile pin configuration supports numerous interface options to facilitate the use of serial components and modules.

Reliability & Lifespan
The MCU's reliability is guaranteed through its high immunity to environmental factors with an ESD resistance of 8 kV and EFT of 4 kV. The internal oscillators provide stable clock sources with a precision of 1% at 25°C and 5V. With such resilience, the M451LC3AE is expected to deliver a long operational lifespan, particularly in rigorous or varying environmental conditions.

Standards & Certifications
While specific standards and certifications are not listed, products like the NuMicro® M451 Base series are typically compliant with international standards such as ROHS and may be subject to other industrial standards based on their area of application.

Application Cases & Reference Designs
Nuvoton, as a reputable MCU manufacturer, often provides detailed application cases and reference designs tailored to the intended use of their products. For instance, in industrial automation, detailed motor control reference designs would be available, illustrating the integration of the M451LC3AE into a variable-speed drive. Similarly, in smart card readers, reference designs include interfacing the MCU's smart card protocols for secure data transactions.