本帖最后由 uc_cm0 于 2011-9-28 08:03 编辑
The Stellaris ARM Cortex-M4F microcontrollers (MCUs), called the Stellaris LM4F series, deliver leading analog integration, floating-point performance and best-in-class power consumption. The LM4F MCUs are the first Cortex-M MCUs to be manufactured in a 65-nanometer process, so you can easily find the right balance between high performance, low power, and price.
TI also recognizes that software drives your time to market so all of the LM4F MCUs are supported by the free-license, royalty-free StellarisWare® software. StellarisWare is a suite of Stellaris-specific APIs that were specifically designed to minimize the cost of software ownership and reduce time to market. Most of these APIs are integrated into ROM, and all software is written in standard C so you can seamlessly develop applications in your tool of choice.
Key Features- All LM4F variants include the ARM Cortex-M4F core with the single precision floating point at 80 MHz
- Up to 256KB embedded flash memory and 32KB SRAM
- Up to 2 x 12-bit ADCs and 24 channels of inputs
- Up to two CAN controllers
- Optional full speed USB 2.0 with device, host, and OTG
- Advanced motion control capability, with up to 16 PWM outputs and two quadrature encoder interfaces
- Generous serial communication, with up to
- Low power modes including power-saving hibernate
- 64-LQFP, 100-LQFP, and 144-LQFP packages
Key Benefits- 12-bit ADC accuracy is achievable at the full 1 MSPS rating without any hardware averaging, eliminating any performance tradeoffs
- ARM Cortex-M4F with floating point accelerates math intensive operations and simplifies digital signal processing implementations
- First ARM Cortex-M MCU in advanced 65-nm technology provides the right balance between higher performance and low power consumption
- Range of pin-compatible memory and package configurations enable optimal selection of devices
- Extensive on-chip peripherals enable a variety of applications, including 1-D scanners, microprinters, digital power, motion control, home appliances, LED signage/control, portable fitness and industrial automation
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