LM3S2939-EQC50-A2T

Product Overview

Category: Microcontroller

Use: The LM3S2939-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 - Low power consumption

Package: The LM3S2939-EQC50-A2T comes in a compact and durable package that ensures protection during handling and transportation. The package is designed to be easily mounted on printed circuit boards (PCBs) for integration into electronic systems.

Essence: The essence of the LM3S2939-EQC50-A2T lies in its ability to provide a powerful and flexible platform for developing embedded systems. It combines a high-performance processor with various peripherals and interfaces, making it suitable for a wide range of applications.

Packaging/Quantity: The LM3S2939-EQC50-A2T is typically sold in reels or trays containing multiple units. The exact quantity may vary depending on the supplier and customer requirements.

Specifications

• Processor: ARM Cortex-M3 core running at up to 50 MHz
• Flash Memory: 256 KB
• RAM: 64 KB
• Communication Interfaces: UART, SPI, I2C
• Analog-to-Digital Converters: 12-bit, up to 8 channels
• Timers: 4 general-purpose timers, 6 PWM outputs
• GPIO Pins: Up to 50 pins
• Operating Voltage: 3.3V
• Operating Temperature: -40°C to +85°C

Detailed Pin Configuration

The LM3S2939-EQC50-A2T has a total of 100 pins, which are assigned for various purposes such as power supply, communication, input/output, and control signals. The pin configuration is as follows:

• Pins 1-10: Power supply and ground
• Pins 11-20: Communication interfaces (UART, SPI, I2C)
• Pins 21-30: Analog-to-digital converters (ADC)
• Pins 31-40: Timers and PWM outputs
• Pins 41-90: General-purpose input/output (GPIO) pins
• Pins 91-100: Control signals and miscellaneous functions

Functional Features

The LM3S2939-EQC50-A2T offers several functional features that enhance its usability and performance in embedded systems:

1. High-performance Processor: The ARM Cortex-M3 core provides efficient processing capabilities, enabling the microcontroller to handle complex tasks quickly and effectively.

2. Ample Memory: With 256 KB of flash memory and 64 KB of RAM, the LM3S2939-EQC50-A2T can store program code and data efficiently, allowing for the development of sophisticated applications.

3. Versatile Communication Interfaces: The microcontroller supports UART, SPI, and I2C interfaces, enabling seamless integration with other devices and systems.

4. Analog-to-Digital Conversion: The built-in ADCs allow for accurate measurement and conversion of analog signals, making the microcontroller suitable for applications involving sensors and analog inputs.

5. Timers and PWM Outputs: The presence of timers and PWM outputs enables precise timing control and generation of analog-like signals, expanding the range of possible applications.

6. GPIO Pins: The numerous GPIO pins provide flexibility for connecting external components and peripherals, allowing for customization and expansion of the system's functionality.

Advantages and Disadvantages

Advantages: - High-performance processor for efficient execution of tasks - Ample memory for storing program code and data - Versatile communication interfaces for seamless integration - Analog-to-digital conversion capability for sensor applications - Timers and PWM outputs for precise timing control and analog signal generation - GPIO pins for customization and expansion possibilities

Disadvantages: - Limited availability of alternative models with similar specifications - Relatively higher cost compared to lower-end microcontrollers - Steeper learning curve for beginners due to the complexity of the ARM Cortex-M3 architecture

Working Principles

The LM3S2939-EQC50-A2T operates based on the principles of a microcontroller. It executes instructions stored in its flash memory, processes data using its internal resources, and communicates with external devices through various interfaces. The ARM Cortex-M3 core provides the computational power, while the peripherals and interfaces enable interaction with the outside world.

The microcontroller follows a sequential execution model, where it fetches