LM3S2139-IBZ25-A2T

Introduction

The LM3S2139-IBZ25-A2T is a microcontroller belonging to the LM3S series, designed and manufactured by Texas Instruments. This entry provides an overview of the product, including its basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Microcontroller
• Use: Embedded systems, industrial control, automation
• Characteristics: Low power consumption, high performance, integrated peripherals
• Package: 108-LQFP
• Essence: ARM Cortex-M3 core
• Packaging/Quantity: Tape & Reel (250 units)

Specifications

• Core: ARM Cortex-M3
• Clock Speed: 50 MHz
• Flash Memory: 128 KB
• RAM: 8 KB
• Operating Voltage: 2.7V - 3.6V
• I/O Pins: 43
• Communication Interfaces: UART, SPI, I2C, USB
• Analog-to-Digital Converter (ADC): 12-bit, 8 channels
• Timers: 4 x 32-bit

Detailed Pin Configuration

The LM3S2139-IBZ25-A2T features a 108-LQFP package with 43 I/O pins. The detailed pin configuration includes GPIO pins, communication interface pins, power supply pins, and other peripheral pins. Refer to the datasheet for the complete pinout diagram.

Functional Features

• Integrated Peripherals: The microcontroller integrates various peripherals such as UART, SPI, I2C, USB, ADC, and timers, reducing the need for external components.
• Low Power Consumption: The device is designed for low power operation, making it suitable for battery-powered applications.
• High Performance: With a 50 MHz clock speed and ARM Cortex-M3 core, the microcontroller offers high computational capability.

Advantages and Disadvantages

• Advantages:
  • Integrated peripherals reduce external component count
  • Low power consumption extends battery life
  • High-performance ARM Cortex-M3 core
• Disadvantages:
  • Limited RAM size may be insufficient for complex applications
  • 8 KB RAM may restrict multitasking capabilities

Working Principles

The LM3S2139-IBZ25-A2T operates on the ARM Cortex-M3 core, which executes instructions and processes data. The integrated peripherals facilitate communication with external devices and sensors, while the low power design ensures efficient operation.

Detailed Application Field Plans

The LM3S2139-IBZ25-A2T is well-suited for various applications, including: - Industrial Control Systems - Home Automation - Consumer Electronics - Automotive Electronics - Medical Devices

Detailed and Complete Alternative Models

• LM3S2110-IBZ25-A2T: Similar features with reduced flash memory
• LM3S2180-IBZ25-A2T: Higher RAM capacity and additional communication interfaces
• LM3S2266-IBZ25-A2T: Enhanced analog and digital peripherals for sensor interfacing

In conclusion, the LM3S2139-IBZ25-A2T microcontroller offers a balance of performance, power efficiency, and integrated peripherals, making it suitable for a wide range of embedded system applications.

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