ML51UB9AE

Introduction

The NuMicro® ML51UB9AE is part of Nuvoton's Low Power 8051 Series, which utilizes a 1T 8051 core-based microcontroller. Specifically designed to cater to a broad range of applications that require efficient power consumption and reliable performance, the ML51UB9AE is capable of running up to 24MHz while maintaining power consumption as low as less than 80µA/MHz in normal run mode. It is especially suitable for battery-powered devices, home appliances, IoT ecosystems, auto-alarm systems, battery management systems, and remote controllers, given its low power run modes and robust peripheral set.

Function & Applications

As a microcontroller that emphasizes low power consumption and flexibility, the ML51UB9AE is equipped with features that make it an ideal choice for smart devices and sensors. It comes with comprehensive support for communication protocols like UART, SPI, and I²C, which are a must-have for IoT devices. The 12-bit ADC and PWM capabilities allow for accurate capturing and reproduction of analog signals, essential for wearable tech and converting digital values to a form that can be used to control physical components like motors or lights.

Performance Parameters

- Operating voltage range of 1.8V to 5.5V
- Operating speeds of up to 24MHz
- Flash memory of 16KB for code, 4KB for ISP
- 1KB SRAM for data storage
- Advanced clock system including a high-frequency 24MHz HIRC oscillator
- Power management features including various low power modes with quick wake-up times
- Up to 6 channels of PWM output for motor control and LED dimming
- High-speed 12-bit ADC with 500kSPS for analog signal conversion

Package Types, Interface & Pin Configuration

The ML51UB9AE microcontroller is available in an SOP28 package, providing a space-saving solution for PCB designs. It offers a rich set of interfaces including:

- Up to 1 SPI interface operating up to 12MHz for serial peripheral communication
- Up to 2 I²C interfaces for multi-master serial communication
- Up to 2 UART interfaces for serial communication, with an additional smart card interface supportive of ISO7816-3
- Up to 24 GPIO pins with versatile I/O configurations and interrupt capabilities

Reliability & Lifespan

Manufactured to operate in extreme conditions, the ML51UB9AE can withstand temperatures ranging from -40 ℃ to +105 ℃, which confirms its reliability for industrial-grade applications. The microcontroller's low-power consumption features also contribute to the longevity of the host device, by minimizing battery drain and extending operating life.

Standards & Certifications

Nuvoton microcontrollers are often designed to meet various international standards for quality, reliability, and environmental durability. While specific certifications for the ML51UB9AE are not detailed, Nuvoton products are typically compliant with standards such as RoHS and may be ISO certified for quality management systems.

Application Cases & Reference Designs

Owing to its feature set, the NuMicro® ML51UB9AE has a wide array of application cases:

- In wearable technology, it enables continuous monitoring without the need for frequent recharging.
- Home appliances can leverage its connectivity features for smart control and energy management.
- For auto-alarm systems, its low power modes and quick wake-up times are essential for prompt alerts while conserving energy.
- IoT sensors benefit from the precise ADC and robust communication interfaces that facilitate data logging and transmission.

Nuvoton often provides reference designs, application notes, and development tools that assist designers in implementing the ML51UB9AE into their projects, enabling efficient development and integration into various applications.