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5900 Series Devices

Texas Instruments’ LM3S5900 Series features 256K Flash and 64K SRAM, integrated with a combination of USB On-the-Go/Host/Device and Controller Area Network. In addition to several product enhancements, the LM3S5900 Series adds the latest Stellaris family features, such as an Integrated Interchip Sound (I2S) Interface, simultaneous dual ADC capability, a second watchdog timer with independent clock for safety critical applications (supported by the IEC 60730 library addition to the StellarisWare® Library), and a 16 MHz software-trimmed 1% Precision Oscillator. Plus, every new LM3S5900 Series MCU is offered with several StellarisWare software features preprogrammed in memory-saving ROM.

Summarized Features

USBCANUARTsGPIOsSSII2CAnalog ComparatorsADC Channels
LM3S5956O/H/D130-332228
LM3S5951O/H/D230-6722216


Product Details



LM3S5951
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LM3S5951

The Stellaris® LM3S5951 microcontroller is based on the ARM® Cortex™-M3 controller core operating at up to 80 MHz, with 256 kB flash, 64 kB SRAM, a 32-ch DMA, and ROM preloaded with the StellarisWare Driver Library, Boot Loader, AES encryption lookup tables, and a cyclical redundancy check (CRC) function. The LM3S5951 also features real-time industrial connectivity, with 2 CAN controllers, USB 2.0 Full Speed OTG/Host/Device, 2 SSI / SPI controllers, 2 I2C interfaces, an I2S interface, and 3 UARTs. The LM3S5951 microcontroller also features advanced motion control features, including 6 motion-control PWM outputs with dead-band, two quadrature encoder inputs for precise position monitoring, and 4 fault protection inputs for low-latency shutdown. The microcontroller also features intelligent analog capability, including 2 analog comparators and 16 channels of highly accurate 10-bit analog-to-digital conversion - with the ability to sample two channels simultaneously at speeds of 1M samples per second. Finally, the LM3S5951 microcontroller provides 16 digital comparators, a 24-bit systick timer, 4 32-bit or 8 16-bit general-purpose timers, 2 watchdog timers, a low drop-out voltage regulator so that only one supply voltage is required, brown-out reset, power-on reset controller, and up to 67 GPIOs.

LM3S5956
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LM3S5956

The Stellaris® LM3S5956 microcontroller is based on the ARM® Cortex™-M3 controller core operating at up to 80 MHz, with 256 kB flash, 64 kB SRAM, a 32-ch DMA, and ROM preloaded with the StellarisWare Driver Library, Boot Loader, AES encryption lookup tables, and a cyclical redundancy check (CRC) function. The LM3S5956 also features real-time industrial connectivity, with a CAN controller, USB 2.0 Full Speed OTG/Host/Device, 2 SSI / SPI controllers, 2 I2C interfaces, and 3 UARTs. The LM3S5956 microcontroller also features advanced motion control features, including 6 motion-control PWM outputs with dead-band, a quadrature encoder input for precise position monitoring, and a fault protection input for low-latency shutdown. The microcontroller also features intelligent analog capability, including 2 analog comparators and 8 channels of highly accurate 10-bit analog-to-digital conversion - with the ability to sample two channels simultaneously at speeds of 1M samples per second. Finally, the LM3S5956 microcontroller provides 16 digital comparators, a 24-bit systick timer, 4 32-bit or 8 16-bit general-purpose timers, 2 watchdog timers, a low drop-out voltage regulator so that only one supply voltage is required, brown-out reset, power-on reset controller, and up to 33 GPIOs.