LM3S1958

Stellaris LM3S 微控制器

The Stellaris® microcontroller is based on the ARM® Cortex™-M3 controller core operating at up to 50 MHz, with 256 kB flash and 64 kB SRAM. The LM3S1958 also features real-time industrial connectivity, with 2 SSI / SPI controllers, 2 I2C interfaces, and 3 UARTs. The microcontroller also features intelligent analog capability, including .8 channels of highly accurate 10-bit analog-to-digital conversion - with the ability to sample at speeds of 1M samples per second. Finally, the LM3S1958 microcontroller provides a 24-bit systick timer, 4 32-bit or 8 16-bit general-purpose timers, a watchdog timer, a battery-backed hibernation module with RTC and 256 bytes of non-volatile state-saving memory, a low drop-out voltage regulator so that only one supply voltage is required, brown-out reset, power-on reset controller, and up to 52 GPIOs.

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32-bit ARM® Cortex™-M3 50-MHz processor core with System Timer SysTick, integrated Nested Vectored Interrupt Controller NVIC, Memory Protection Unit MPU, and Thumb-2 instruction set

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Full-featured debug solution with debug access via JTAG and Serial Wire interfaces, and IEEE 1149.1-1990 compliant Test Access Port TAP controller

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256 KB single-cycle flash and 64 KB single-cycle SRAM

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Lower-power battery-backed Hibernation module with Real-Time Clock

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21-52 GPIOs depending on configuration with programmable control for GPIO interrupts and pad configuration

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ARM FiRM-compliant Watchdog Timer ; plus four General-Purpose Timer Modules GPTM, each of which provides two 16-bit timers/counters and can be configured to operate independently

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10-bit Analog-to-Digital Converter ADC with eight analog input channels and a sample rate of one million samples/second

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Three fully programmable 16C550-type UARTs with IrDA support

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Two Synchronous Serial Interface SSI modules, supporting operation for Freescale SPI, MICROWIRE, or Texas Instruments synchronous serial interfaces

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Two Inter-Integrated Circuit I2C Interface modules, providing Standard 100 Kbps and Fast 400 Kbps transmission and support for sending and receiving data as either a master or a slave

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Industrial and extended temperature RoHS-compliant 100-pin LQFP package and industrial-range RoHS-compliant 108-ball BGA package