ML51XB9AE

Introduction

The NuMicro® ML51XB9AE is a high-performance, low-power microcontroller based on a 1T 8051 core architecture by Nuvoton. This device is particularly designed to cater to the demands of modern embedded systems that require high efficiency and low energy consumption. With its robust set of features and wide operating voltage and temperature ranges, the ML51XB9AE is highly versatile and suitable for various applications, including wearable devices, home appliances, IoT devices, auto-alarm systems, battery management systems, and remote controllers.

Function & Applications

The efficiency of the ML51XB9AE lies in its power management system and peripherals that contribute to its functionality. Operating at a normal run mode of less than 80µA/MHz and a power-down current below 1µA, this microcontroller is optimized for energy-sensitive applications. It comes with valuable features, including a built-in LDO, multiple clock sources, PWM, 12-bit SAR ADC, and multiple communication interfaces making it a perfect fit for applications such as smoke detectors, IoT sensor nodes, smart appliances, data loggers, wearable devices, and battery management systems.

Performance Parameters

For performance, the ML51XB9AE operates at speeds up to 24MHz and supports a wide voltage range from 1.8V to 5.5V. The microcontroller's operating temperature spans from -40 ℃ to +105 ℃, ensuring reliability across various environmental conditions. It boasts a 16 KB flash memory for program code, a 4 KB flash for ISP, and an embedded 1 KB SRAM.

The clock system includes a 4 to 24 MHz HXT crystal oscillator, a 32.768 kHz LXT crystal oscillator, an internal 24 MHz HIRC oscillator with a variation of less than ±2%, and a software-trimmed 38.4 kHz LIRC oscillator. The device also demonstrates impressive ADC capabilities with a 6-channel 12-bit SAR ADC operating at 500kSPS.

Package Types, Interface & Pin Configuration

In terms of packaging, the ML51XB9AE is offered in a QFN20 package with up to 17 GPIOs and interfaces that include 2 UARTs, 1 SPI, 2 I²C, and 1 smart card interface. It allows for up to 6x16-bit channel PWM outputs or 3 complementary paired PWM outputs. Additionally, it has a dead-zone generator for the PWM and supports capture interrupt, enhancing its utility in complex applications.

Reliability & Lifespan

The design and technology used in the ML51XB9AE ensure its reliability and long lifespan even under strenuous conditions. The device's specifications provide stable performance over a broad temperature range and through various power states, from active to power-down modes.

Standards & Certifications

While the specific standards and certifications for the ML51XB9AE are not detailed here, Nuvoton microcontrollers typically adhere to industry standards for quality and reliability. For detailed certification information, one would usually refer to the manufacturer's documentation or product data sheet.

Application Cases & Reference Designs

Application cases for the ML51XB9AE encompass wearable technology, where its low power consumption and small form factor are crucial; home appliances that require dependable controllers capable of working over varying temperatures and voltages; and IoT devices where connectivity, low power, and efficient processing are key.

In summary, the NuMicro® ML51XB9AE is a robust microcontroller designed for a broad range of low power applications, effectively balancing performance with energy efficiency, and supported with a wide array of peripherals to accommodate diverse application needs.