LM3S1C21-IQC80-A2

Program Memory Type:	FLASH
Base Part Number:	LM3S1C21
Supplier Device Package:	100-LQFP (14x14)
Package / Case:	100-LQFP
Operating Temperature:	-40°C ~ 85°C (TA)
Oscillator Type:	Internal
Data Converters:	A/D 8x12b
Voltage - Supply (Vcc/Vdd):	1.235 V ~ 1.365 V
RAM Size:	64K x 8
EEPROM Size:	--
Series:	Stellaris® ARM® Cortex®-M3S 1000
Program Memory Size:	512KB (512K x 8)
Number of I/O:	67
Peripherals:	Brown-out Detect/Reset, DMA, POR, PWM, WDT
Connectivity:	EBI/EMI, I²C, IrDA, LINbus, Microwire, SPI, SSI, UART/USART
Speed:	80MHz
Core Size:	32-Bit
Core Processor:	ARM® Cortex®-M3
Part Status:	Obsolete
Packaging:	Tray

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Introduction
LM3S1C21-IQC80-A2 is an 8-bit microcontroller that offers on-chip flash memory for program and data storage, as well as a wide range of advanced features for application development and system interaction. Its small size and low power consumption makes it an ideal choice for embedded systems in a wide range of industries. This article looks at the applications and working principles of the LM3S1C21-IQC80-A2 and how it can be used in different industries.

Application Fields
The LM3S1C21-IQC80-A2 microcontroller can be used in a variety of industries, including automotive, industrial, medical, consumer, and more. Automotive applications include engine control, driver assistance systems, and data collection from vehicle sensors. Medical applications include patient monitoring systems, drug delivery systems, and implantable medical devices. Industrial applications include industrial robots and automation, factory automation systems, distributed control systems, and industrial networking.Consumer applications include home automation systems, security systems, and home entertainment systems.

Working Principle
The LM3S1C21-IQC80-A2 microcontroller features an ARM Cortex-M3 processor core, which is a powerful 32-bit processor that supports Ultra-Low-Power operation. The microcontroller has an on-chip Flash memory for program storage and a register-based architecture, which enhances code execution speed. The on-chip RAM can store both data and program instructions, reducing the need for external storage and reducing system cost. The microcontroller has several peripherals, such as a 10- to 16-bit ADC, two UARTs, and an LCD controller, which give users access to a variety of application-specific features.

Architecture
The architecture of the LM3S1C21-IQC80-A2 provides a range of memory and interface options, as well as a flexible power management system. It has an Advanced Peripheral Bus (APB), which is a high-speed, low-latency bus that enables faster communication between different components of the system. The microcontroller also has two power modes: Active and sleep. In active mode, the processor is operating at full speed and can execute instructions. In sleep mode, the processor is idle and draws minimal power. This helps to reduce system power consumption when the system is not actively being used.

Conclusion
The LM3S1C21-IQC80-A2 is an 8-bit microcontroller that offers a range of features for embedded system development. Its small size and low power consumption make it an ideal choice for use in a wide range of industries. The microcontroller’s on-chip flash memory, register-based architecture, and flexible power management system make it a powerful, cost-effective solution for a variety of applications.

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