Texas Instruments LM3S1B21-IBZ80-C3

Product Overview

The LM3S1B21-IBZ80-C3 is a high-performance 32-bit microcontroller from Texas Instruments' Stellaris ARM Cortex-M3 family, engineered for demanding embedded and industrial applications that require robust processing power, extensive connectivity options, and exceptional reliability. Operating at 80MHz with 256KB Flash memory and 96KB RAM, this advanced MCU delivers outstanding performance for real-time control systems, industrial automation, communication gateways, and sophisticated IoT applications.

Built on the industry-standard ARM Cortex-M3 architecture, the LM3S1B21-IBZ80-C3 combines energy efficiency with powerful computational capabilities, making it ideal for battery-powered devices and always-on systems. The comprehensive peripheral set and multiple communication interfaces reduce external component requirements, lowering overall system cost and complexity while improving reliability.

Key Features & Technical Advantages

• High-Performance ARM Cortex-M3 Core: 32-bit processing at 80MHz with 1.25 DMIPS/MHz performance ensures fast execution for demanding embedded applications, real-time operating systems, and complex control algorithms
• Generous Memory Resources: 256KB Flash program memory and 96KB SRAM provide ample space for complex firmware, data buffering, and multi-tasking applications without external memory requirements
• Extensive Connectivity Options: Multiple communication interfaces including EBI/EMI, I2C, IrDA, LINbus, Microwire, SPI, SSI, and UART/USART enable seamless integration with various peripherals, sensors, displays, and network modules
• Rich Integrated Peripheral Set: Built-in DMA controller, PWM modules, watchdog timer (WDT), and brown-out detection enhance system reliability, reduce CPU overhead, and minimize external component count
• 67 Flexible I/O Pins: Abundant GPIO options with configurable pull-ups/pull-downs provide maximum flexibility for system design, sensor interfacing, and future expansion
• Advanced Analog Capabilities: 8-channel 10-bit ADC enables precise sensor measurements and analog signal processing for industrial monitoring and control applications
• Wide Operating Voltage Range: 1.08V to 3.6V supply voltage compatibility supports both low-power battery operation and standard industrial power supplies
• Industrial Temperature Range: -40°C to 85°C operating range ensures reliable performance in harsh industrial environments, automotive applications, and outdoor installations
• Compact 108-LFBGA Package: Space-efficient 10x10mm surface mount design (0.8mm pitch) ideal for size-constrained applications and high-density PCB layouts
• RoHS Compliant & Lead-Free: Meets international environmental standards for global deployment and regulatory compliance
• Low Power Modes: Multiple sleep and deep-sleep modes with fast wake-up times optimize power consumption for battery-powered and energy-efficient designs

Typical Applications & Use Cases

• Industrial Automation: PLC controllers, factory automation systems, process control, and SCADA interfaces
• Building Automation: HVAC control systems, lighting control, access control, and energy management
• Motor Control: Brushless DC motor control, stepper motor drivers, servo systems, and variable frequency drives
• Data Acquisition Systems: Multi-channel data loggers, environmental monitoring, and industrial measurement equipment
• Communication Gateways: Protocol converters, industrial Ethernet interfaces, Modbus gateways, and fieldbus adapters
• Medical Instrumentation: Patient monitoring devices, diagnostic equipment, and portable medical instruments
• Automotive Electronics: Body control modules, dashboard controllers, and automotive diagnostic tools
• IoT Edge Devices: Smart sensors, wireless sensor nodes, edge computing platforms, and connected devices
• Security Systems: Access control panels, alarm systems, and surveillance equipment controllers
• Test & Measurement: Portable test equipment, signal generators, and automated test systems

Technical Specifications Summary

• Architecture: 32-bit ARM Cortex-M3 RISC processor with Thumb-2 instruction set
• Clock Speed: Up to 80MHz with internal precision oscillator and PLL
• Memory: 256KB Flash (with read protection), 96KB SRAM
• Communication Interfaces: EBI/EMI, 2x I2C, IrDA, LINbus, Microwire, 2x SPI/SSI, 3x UART/USART
• Timers: General-purpose timers, PWM timers, watchdog timer, systick timer
• Analog: 8-channel 10-bit ADC with 1 MSPS sampling rate
• DMA: 32-channel configurable DMA controller for efficient data transfers
• Debug: JTAG and Serial Wire Debug (SWD) interfaces
• Package: 108-pin LFBGA (10x10mm, 0.8mm pitch)

Why Choose HQICKEY for Your Semiconductor Needs?

At HQICKEY, we are a premium distributor specializing in authentic, high-quality semiconductor components with guaranteed long lifecycle availability. Our commitment to quality control ensures that every component meets or exceeds manufacturer specifications. We provide dedicated technical support to assist OEMs, system integrators, and design engineers throughout the entire product lifecycle—from initial design and prototyping to full-scale production and long-term maintenance.

Our advantages include:

• 100% Authentic Components: Direct sourcing from authorized channels with full traceability
• Long Lifecycle Support: Guaranteed availability for production-scale projects and legacy system maintenance
• Technical Expertise: Engineering support for design-in, application guidance, and troubleshooting
• Global Shipping: Reliable worldwide delivery with proper handling and ESD protection
• Quality Assurance: Rigorous inspection and testing procedures to ensure component authenticity and functionality
• Competitive Pricing: Volume pricing available for production quantities

Design Resources & Support

Texas Instruments provides comprehensive development tools and resources for the Stellaris LM3S family, including:

• Stellaris Development Kits and evaluation boards
• StellarisWare software library with peripheral drivers and examples
• Code Composer Studio IDE and debugging tools
• Application notes, reference designs, and technical documentation
• RTOS support including FreeRTOS, µC/OS, and others

Ordering Information & Packaging

The LM3S1B21-IBZ80-C3 is available in tray packaging suitable for automated pick-and-place assembly. Contact our sales team for volume pricing, lead times, and custom packaging options. We maintain stock for immediate delivery and can accommodate both prototype quantities and production volumes.

Related Products & Cross-References

Explore our comprehensive selection of Microcontrollers for embedded systems, including other ARM Cortex-M3/M4 devices, STM32 series, and industrial-grade MCUs. Visit our homepage to discover the latest products and special offers, or check our technical blog for application notes, design guides, industry insights, and embedded systems best practices.

Need assistance with your design? Our technical team is ready to help you select the right microcontroller for your application, provide design recommendations, and ensure successful project implementation. Contact us today for expert guidance and competitive pricing.

• LM3S1B21-IBZ80-C3.pdf