The LM3S1G21-IQC80-A1T is a microcontroller from Texas Instruments' Stellaris® family, specifically part of the LM3S series. This microcontroller is designed for embedded applications requiring high-performance processing capabilities. Here are some key features and an overview of the LM3S1G21-IQC80-A1T:
1. Architecture: It is based on a 32-bit ARM Cortex-M3 core, which offers a balance between code density and performance. This core operates at a maximum clock frequency of 80 MHz.
2. Memory: The LM3S1G21-IQC80-A1T features 128 KB of flash memory for program storage and 16 KB of RAM for data storage. It also includes a flash acceleration module, enabling fast and efficient execution from flash memory.
3. Connectivity: It provides various communication interfaces to interact with other devices. This microcontroller includes two UARTs (Universal Asynchronous Receiver/Transmitter), two I²C (Inter-Integrated Circuit) interfaces, and two SSI/SPI (Serial Synchronous Interface/Serial Peripheral Interface) modules.
4. Peripherals: The LM3S1G21-IQC80-A1T offers several integrated peripherals for enhanced functionalities. It includes a 12-bit analog-to-digital converter (ADC) with a maximum sample rate of 200 kSPS, which is useful for acquiring analog sensor data. It also has multiple timers/counters, PWM (Pulse-Width Modulation) modules, and GPIO (General-Purpose Input/Output) pins for implementing various applications.
5. System Control: The microcontroller features a flexible power management unit, enabling efficient power utilization. It supports various low power modes, allowing developers to optimize energy consumption in applications that demand power efficiency.
6. Development Support: Texas Instruments offers comprehensive development support for the LM3S1G21-IQC80-A1T. It provides a robust software development kit (SDK), including a real-time operating system (RTOS) called StellarisWare. This SDK offers libraries, drivers, and examples to facilitate application development on the microcontroller.
7. Package and Temperature Range: The IC component LM3S1G21-IQC80-A1T comes in a 100-pin LQFP (Low-Profile Quad Flat Package), which is a surface-mount package. It operates in the industrial temperature range of -40°C to +85°C, making it suitable for a wide range of applications operating in harsh environments.
In summary, the LM3S1G21-IQC80-A1T is a powerful microcontroller based on the ARM Cortex-M3 architecture. It offers a comprehensive set of features, including a high-performance core, ample memory, multiple connectivity options, integrated peripherals, power management unit, and robust development support. These attributes make it an excellent choice for demanding embedded applications that require processing power, connectivity, and low power consumption.
