LM3S9B90-IQC80-C5

Description Texas Instruments is the industry leader in bringing 32-bit capabilities and the full benefits of ARM® Cortex™-M3-based microcontrollers to the broadest reach of the microcontroller market. For current users of 8- and 16-bit MCUs, Stellaris® with Cortex-M3 offers a direct path to the strongest ecosystem of development tools, software and knowledge in the industry. Designers who migrate to Stellaris benefit from great tools, small code footprint and outstanding performance. Even more important, designers can enter the ARM ecosystem with full confidence in a compatible roadmap from $1 to 1 GHz. For users of current 32-bit MCUs, the Stellaris family offers the industry’s first implementation of Cortex-M3 and the Thumb-2 instruction set. With blazingly-fast responsiveness, Thumb-2 technology combines both 16-bit and 32-bit instructions to deliver the best balance of code density and performance. Thumb-2 uses 26 percent less memory than pure 32-bit code to reduce system cost while delivering 25 percent better performance.
The Texas Instruments Stellaris family of microcontrollers—the first ARM Cortex-M3 based controllers—brings high-performance 32-bit computing to cost sensitive embedded microcontroller applications.
These pioneering parts deliver customers 32-bit performance at a cost equivalent to legacy 8- and 16-bit devices, all in a package with a small footprint.  
Features
• ARM Cortex-M3 Processor Core– 80-MHz operation; 100 DMIPS performance– ARM Cortex SysTick Timer– Nested Vectored Interrupt Controller (NVIC)
• On-Chip Memory– 256 KB single-cycle Flash memory up to 50 MHz; a prefetch buffer improves performance above 50 MHz– 96 KB single-cycle SRAM– Internal ROM loaded with StellarisWare® software:
• Stellaris Peripheral Driver Library
• Stellaris Boot Loader
• Advanced Encryption Standard (AES) cryptography tables
• Cyclic Redundancy Check (CRC) error detection functionality
• External Peripheral Interface (EPI)– 8/16/32-bit dedicated parallel bus for external peripherals– Supports SDRAM, SRAM/Flash memory, FPGAs, CPLDs
• Advanced Serial Integration– 10/100 Ethernet MAC and PHY– Two CAN 2.0 A/B controllers– USB 2.0 OTG/Host/Device   Applications
• Remote monitoring
• Electronic point-of-sale (POS) machines
• Test and measurement equipment
• Network appliances
• Factory automation
• HVAC and building control
• Gaming equipment
• Motion control
• Medical instrumentation