LM3S8971-EQC50-A2T

Product Overview

Category: Microcontroller

Use: The LM3S8971-EQC50-A2T is a microcontroller designed for embedded systems applications. It provides a wide range of features and capabilities to support various electronic devices and systems.

Characteristics: - High-performance ARM Cortex-M3 core - Flash memory for program storage - Multiple communication interfaces (UART, SPI, I2C) - Analog-to-digital converters (ADC) - Timers and PWM outputs - GPIO pins for general-purpose input/output - Low power consumption - Real-time clock (RTC)

Package: The LM3S8971-EQC50-A2T comes in a compact quad flat package (QFP) with 100 pins. This package allows for easy integration into circuit boards and provides good thermal dissipation.

Essence: The essence of the LM3S8971-EQC50-A2T lies in its ability to control and manage various functions within an embedded system. It acts as the brain of the system, executing instructions and interacting with external components.

Packaging/Quantity: The LM3S8971-EQC50-A2T is typically sold individually or in small quantities. It is packaged in anti-static bags to prevent damage during transportation and storage.

Specifications

• Microcontroller Core: ARM Cortex-M3
• Clock Speed: Up to 50 MHz
• Flash Memory: 256 KB
• RAM: 64 KB
• Operating Voltage: 3.3 V
• Communication Interfaces: UART, SPI, I2C
• Analog-to-Digital Converters: 12-bit, 8 channels
• Timers: 6 timers with PWM outputs
• GPIO Pins: 80 general-purpose I/O pins
• Operating Temperature: -40°C to +85°C

Detailed Pin Configuration

The LM3S8971-EQC50-A2T has a total of 100 pins. The pin configuration is as follows:

• Pins 1-20: General-purpose I/O (GPIO) pins
• Pins 21-30: Analog input pins
• Pins 31-40: UART communication pins
• Pins 41-50: SPI communication pins
• Pins 51-60: I2C communication pins
• Pins 61-70: Timer and PWM output pins
• Pins 71-80: Power supply and ground pins
• Pins 81-100: Reserved for future use

Functional Features

The LM3S8971-EQC50-A2T offers several functional features that make it suitable for a wide range of applications:

1. High Performance: The ARM Cortex-M3 core provides excellent processing power, allowing for efficient execution of complex tasks.
2. Flexible Communication Interfaces: The microcontroller supports multiple communication protocols, enabling seamless integration with other devices and systems.
3. Analog-to-Digital Conversion: The built-in ADCs allow for accurate measurement and conversion of analog signals, making it ideal for sensor-based applications.
4. Timers and PWM Outputs: The timers and PWM outputs provide precise timing control and enable the generation of analog-like signals.
5. Low Power Consumption: The microcontroller is designed to operate efficiently in low-power modes, making it suitable for battery-powered applications.
6. Real-Time Clock: The integrated real-time clock ensures accurate timekeeping and enables time-dependent operations.

Advantages and Disadvantages

Advantages: - Powerful ARM Cortex-M3 core for high-performance applications - Versatile communication interfaces for easy integration - Adequate memory capacity for program storage - Precise analog-to-digital conversion for sensor-based applications - Timers and PWM outputs for precise timing control

Disadvantages: - Limited number of GPIO pins compared to some other microcontrollers - Higher cost compared to entry-level microcontrollers

Working Principles

The LM3S8971-EQC50-A2T operates based on the principles of a microcontroller. It executes instructions stored in its flash memory, interacts with external components through various communication interfaces, and controls the flow of data and signals within an embedded system.

The microcontroller's core processes instructions fetched from memory, performs calculations, and manages input/output operations. It communicates with peripherals using UART, SPI, or I2C protocols, enabling data exchange with sensors, actuators, and other devices.

The LM3S8971-EQC50-A2T's working principle revolves around providing a reliable and efficient platform for developing embedded systems that require high-performance computing, precise timing control, and seamless integration with external components.

Detailed Application Field Plans

The LM3S8971-EQC50-A2T finds applications in various fields, including:

1. Industrial Automation: The microcontroller