LM3S2651-EQC50-A2T

Product Overview

Category: Microcontroller

Use: The LM3S2651-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 - RAM for data storage - Multiple communication interfaces (UART, SPI, I2C) - Analog-to-digital converters (ADC) - Timers and PWM outputs - GPIO pins for general-purpose input/output

Package: The LM3S2651-EQC50-A2T comes in a compact quad flat package (QFP) with 50 pins. This package allows for easy integration into circuit boards and provides good thermal dissipation.

Essence: The essence of the LM3S2651-EQC50-A2T lies in its ability to provide a powerful processing platform for embedded systems. It combines a high-performance processor core with various peripherals and interfaces, making it suitable for a wide range of applications.

Packaging/Quantity: The LM3S2651-EQC50-A2T is typically sold in reels or trays, with a quantity of 250 units per reel/tray.

Specifications

• Processor Core: ARM Cortex-M3
• Clock Speed: Up to 50 MHz
• Flash Memory: 64 KB
• RAM: 8 KB
• Communication Interfaces: UART, SPI, I2C
• Analog-to-Digital Converters: 12-bit, 8 channels
• Timers: 4 x 16-bit timers
• PWM Outputs: 6 x PWM outputs
• GPIO Pins: 32 pins

Detailed Pin Configuration

The LM3S2651-EQC50-A2T has a total of 50 pins. The pin configuration is as follows:

• Pins 1-8: GPIO pins
• Pins 9-16: UART interface pins
• Pins 17-24: SPI interface pins
• Pins 25-32: I2C interface pins
• Pins 33-40: Analog input pins (ADC)
• Pins 41-46: PWM output pins
• Pins 47-50: Power and ground pins

Functional Features

The LM3S2651-EQC50-A2T offers several functional features that enhance its usability in embedded systems:

1. High-performance Processor Core: The ARM Cortex-M3 core provides efficient processing capabilities, enabling the microcontroller to handle complex tasks.
2. Ample Memory: With 64 KB of flash memory and 8 KB of RAM, the LM3S2651-EQC50-A2T can store program code and data efficiently.
3. Versatile Communication Interfaces: The microcontroller supports UART, SPI, and I2C interfaces, allowing for seamless integration with other devices and systems.
4. Analog-to-Digital Conversion: The built-in ADC enables the microcontroller to convert analog signals into digital values, facilitating sensor interfacing and data acquisition.
5. Timers and PWM Outputs: The presence of timers and PWM outputs allows for precise timing control and generation of analog-like signals.
6. GPIO Pins: The general-purpose input/output pins provide flexibility for connecting external components and peripherals.

Advantages and Disadvantages

Advantages: - Powerful processor core for efficient processing - Ample memory for program storage and data handling - Multiple communication interfaces for device connectivity - Built-in ADC for analog signal conversion - Timers and PWM outputs for precise timing control - GPIO pins for flexible external component integration

Disadvantages: - Limited number of pins may restrict the number of peripherals that can be connected simultaneously - Relatively small amount of flash memory and RAM compared to some other microcontrollers in the market

Working Principles

The LM3S2651-EQC50-A2T operates based on the principles of a microcontroller. It executes instructions stored in its flash memory, processes data using its processor core, and interacts with external devices through various communication interfaces.

Upon power-up, the microcontroller initializes its internal components and starts executing the program code stored in its flash memory. It can communicate with other devices using UART, SPI, or I2C interfaces, enabling data exchange and control signals transmission.

The ADC allows the microcontroller to convert analog signals from sensors into digital values for further processing. The timers and PWM outputs provide precise timing control and generation of analog-like signals.

Detailed Application Field Plans

The LM3S2651-EQC50-A2T is suitable for a wide range of embedded systems applications, including but not limited to:

1. Industrial Automation: Control systems, motor drives, and monitoring devices. 2