Supply original LM3S8938-EQC50-A2, Embedded - Microcontrollers, by texas

Description
The 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.
The Stellaris family offers efficient performance and extensive integration, favorably positioning the device into cost-conscious applications requiring significant control-processing and connectivity capabilities.
The Stellaris LM3S8000 series combines Bosch Controller Area Network technology with both a 10/100 Ethernet Media Access Control (MAC) and Physical (PHY) layer.
The LM3S8938 microcontroller is targeted for industrial applications, including remote monitoring, electronic point-of-sale machines, test and measurement equipment, network appliances and switches, factory automation, HVAC and building control, gaming equipment, motion control, medical instrumentation, and fire and security. For applications requiring extreme conservation of power, the LM3S8938 microcontroller features a battery-backed Hibernation module to efficiently power down the LM3S8938 to a low-power state during extended periods of inactivity. With a power-up/power-down sequencer, a continuous time counter (RTC), a pair of match registers, an APB interface to the system bus, and dedicated non-volatile memory, the Hibernation module positions the LM3S8938 microcontroller perfectly for battery applications. In addition, the LM3S8938 microcontroller offers the advantages of ARM's widely available development tools, System-on-Chip (SoC) infrastructure IP applications, and a large user community. Additionally, the microcontroller uses ARM's Thumb®-compatible Thumb-2 instruction set to reduce memory requirements and, thereby, cost. Finally, the LM3S8938 microcontroller is code-compatible to all members of the extensive Stellaris family; providing flexibility to fit our customers' precise needs. Texas Instruments offers a complete solution to get to market quickly, with evaluation and development boards, white papers and application notes, an easy-to-use peripheral driver library, and a strong support, sales, and distributor network. See “Ordering and Contact Information” on page 735 for ordering information for Stellaris family devices.  
Features
• 32-Bit RISC Performance– 32-bit ARM® Cortex™-M3 v7M architecture optimized for small-footprint embedded applications– System timer (SysTick), providing a simple, 24-bit clear-on-write, decrementing, wrap-on-zero counter with a flexible control mechanism– Thumb®-compatible Thumb-2-only instruction set processor core for high code density– 50-MHz operation– Hardware-division and single-cycle-multiplication – Integrated Nested Vectored Interrupt Controller (NVIC) providing deterministic interrupt handling– 34 interrupts with eight priority levels– Memory protection unit (MPU), providing a privileged mode for protected operating system functionality– Unaligned data access, enabling data to be efficiently packed into memory– Atomic bit manipulation (bit-banding), delivering maximum memory utilization and streamlined peripheral control
• ARM® Cortex™-M3 Processor Core– Compact core.– Thumb-2 instruction set, delivering the high-performance expected of an ARM core in the memory size usually associated with 8-and 16-bit devices; typically in the range of a few kilobytes of memory for microcontroller class applications.– Rapid application execution through Harvard architecture characterized by separate buses for instruction and data.– Exceptional interrupt handling, by implementing the register manipulations required for handling an interrupt in hardware.– Deterministic, fast interrupt processing: always 12 cycles, or just 6 cycles with tail-chaining– Memory protection unit (MPU) to provide a privileged mode of operation for complex applications.– Migration from the ARM7™ processor family for better performance and power efficiency.– Full-featured debug solution
• Serial Wire JTAG Debug Port (SWJ-DP)
• Flash Patch and Breakpoint (FPB) unit for implementing breakpoints
• Data Watchpoint and Trigger (DWT) unit for implementing watchpoints, trigger resources, and system profiling
• Instrumentation Trace Macrocell (ITM) for support of printf style debugging
• Trace Port Interface Unit (TPIU) for bridging to a Trace Port Analyzer– Optimized for single-cycle flash usage– Three sleep modes with clock gating for low power– Single-cycle multiply instruction and hardware divide– Atomic operations– ARM Thumb2 mixed 16-/32-bit instruction set   Applications
• Remote monitoring
• Electronic point-of-sale (POS) machines
• Test and measurement equipment
• Network appliances and switches
• Factory automation
• HVAC and building control
• Gaming equipment
• Motion control
• Medical instrumentation
• Fire and security
• Power and energy
• Transportation