LM3S3W26-IQR50-C0

Product Overview

Category: Microcontroller

Use: The LM3S3W26-IQR50-C0 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 LM3S3W26-IQR50-C0 comes in a compact and durable package, suitable for surface mount technology (SMT) assembly. The package ensures reliable operation and protection of the microcontroller.

Essence: The LM3S3W26-IQR50-C0 is a key component in many electronic devices and systems, providing the necessary processing power and control capabilities.

Packaging/Quantity: The LM3S3W26-IQR50-C0 is typically sold in reels or trays, with a quantity of 250 units per reel/tray.

Specifications

• Microcontroller Core: ARM Cortex-M3
• Clock Speed: Up to 50 MHz
• Flash Memory: 256 KB
• RAM: 32 KB
• Communication Interfaces: UART, SPI, I2C
• Analog-to-Digital Converters: 12-bit, 8 channels
• Timers: 4 general-purpose timers, 6 PWM outputs
• GPIO Pins: 40 pins

Detailed Pin Configuration

The LM3S3W26-IQR50-C0 has a total of 40 pins, which are assigned to various functions and peripherals. Here is a detailed pin configuration:

• Pin 1: VDD (Power Supply)
• Pin 2: GND (Ground)
• Pin 3: UART0_TX (UART Transmit)
• Pin 4: UART0_RX (UART Receive)
• Pin 5: SPI0_CLK (SPI Clock)
• Pin 6: SPI0_MISO (SPI Master In Slave Out)
• Pin 7: SPI0_MOSI (SPI Master Out Slave In)
• Pin 8: I2C0_SCL (I2C Serial Clock)
• Pin 9: I2C0_SDA (I2C Serial Data)
• ...
• Pin 40: RESET (Reset)

Functional Features

The LM3S3W26-IQR50-C0 offers several functional features that enhance its usability and performance:

1. High-performance Core: The ARM Cortex-M3 core provides efficient processing capabilities, enabling the microcontroller to handle complex tasks.
2. Ample Memory: With 256 KB of flash memory and 32 KB of RAM, the LM3S3W26-IQR50-C0 can store program code and data efficiently.
3. Versatile Communication Interfaces: The microcontroller supports UART, SPI, and I2C interfaces, allowing seamless integration with other devices and systems.
4. Analog-to-Digital Conversion: The built-in ADCs enable the microcontroller to interface with analog sensors and convert analog signals into digital data.
5. Timers and PWM Outputs: The timers and PWM outputs provide precise timing control and support various applications, such as motor control and LED dimming.
6. GPIO Pins: The general-purpose input/output pins offer flexibility for connecting external components and peripherals.

Advantages and Disadvantages

Advantages: - Powerful processing capabilities - Sufficient memory for most embedded applications - Versatile communication interfaces - Analog-to-digital conversion capability - Precise timing control with timers and PWM outputs - Flexible GPIO pins for customization

Disadvantages: - Limited number of ADC channels (8 channels) - Relatively small RAM size (32 KB)

Working Principles

The LM3S3W26-IQR50-C0 operates based on the ARM Cortex-M3 core architecture. It executes instructions stored in its flash memory, processes data using its internal registers and ALU, and communicates with external devices through various interfaces.

The microcontroller follows a fetch-decode-execute cycle, where it fetches an instruction from memory, decodes it to determine the operation to be performed, and then executes the instruction. This cycle repeats continuously, allowing the microcontroller to perform tasks according to the program code.

Detailed Application Field Plans

The LM3S3W26-IQR50-C0 is widely used in various application fields, including:

1. Industrial Automation: The microcontroller can be utilized in industrial control systems, monitoring equipment, and process automation.
2. Consumer Electronics: It finds applications in home appliances, smart devices,