ML51TB9AE

 Introduction

The NuMicro® ML51TB9AE microcontroller is part of the Lower Power 8051 Series developed by Nuvoton. As a modern iteration of the classic 8051 microcontroller series, it is designed to meet the demands of power-sensitive and cost-effective applications. Its sophisticated power management, moderate processing capabilities, ample memory, and diverse peripheral support make it a versatile choice for a wide range of embedded systems.

Function & Applications

The ML51TB9AE is built to serve multiple functions within embedded systems, most notably for its low-power characteristics and efficient performance. This microcontroller's applications span a variety of sectors including wearables, home appliances, IoT devices, auto-alarm systems, battery management systems, and remote controllers.

Performance Parameters

Key performance parameters of the ML51TB9AE include:

- Operating Voltage: 1.8V to 5.5V
- Operating Temperature: -40 ℃ to 105 ℃
- Flash Memory: 16 KB for program code storage and 4 KB for ISP
- SRAM: 1 KB embedded for data
- Clock Sources:  4 to 24 MHz HXT, 32.768 kHz LXT, internally generated 24 MHz HIRC with < ±2% variation, and 38.4 kHz LIRC
- Power Management: Ultra-low power modes, such as 80 µA/MHz in normal run mode and <1 µA in power-down mode.
- ADC: 12-bit with 8 channels, capable of 500 kSPS
- Communication: Up to 2x SPI, 2x I²C, and 2x UART interfaces, along with a smart card interface
- GPIO: Up to 28 general-purpose I/O pins
- PWM: Up to 6x16-bit channels or 3 complementary pairs with dead-zone generation

Package Types, Interface & Pin Configuration

For ML51TB9AE, the package type available is the QFN33 (Quad-Flat No-leads 33-pin). The chip provides a comprehensive set of interfaces that facilitate versatility in embedded solutions. These interfaces include UART for serial communication, SPI, and I²C for interfacing with other chips and sensors, as well as an array of GPIO pins for general control tasks.

Reliability & Lifespan

Nuvoton technology ensures high reliability and an extended operational lifespan for the ML51TB9AE through rigorous design and manufacturing processes. With its ability to function across a broad range of temperatures and voltages, it is suited for varied and demanding environments.

Standards & Certifications

Adherence to international standards and acquiring relevant certifications is a priority to ensure safety, interoperability, and quality.

Application Cases & Reference Designs

The ML51TB9AE's application cases can be found in various sectors owing to its diverse feature set. For example, in a wearable device, the chip's low power consumption can extend battery life. In smart home appliances, its multiple communication interfaces enable complex control schemes. Nuvoton provides reference designs and support through their development tools such as the Nu-Link programmer and comprehensive integration with popular development environments like KEIL and IAR for streamlined product development.