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5R00 Series Devices

Texas Instruments’ LM3S5R00 Series features 256K Flash and 48K SRAM, integrated with a combination of USB Device and Controller Area Network. In addition to several product enhancements, the LM3S5R00 Series adds the latest Stellaris family features, such as a versatile External Peripheral Interface (with modes to support SDRAM, SRAM/Flash, Host-Bus, and M2M), 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 LM3S5R00 Series MCU is offered with several StellarisWare software features preprogrammed in memory-saving ROM.

Summarized Features

USBCANUARTsGPIOsSSII2CAnalog ComparatorsADC Channels
LM3S5R36D130-332228
LM3S5R31D130-6722216


Product Details



LM3S5R31
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LM3S5R31

The Stellaris® LM3S5R31 microcontroller is based on the ARM® Cortex?-M3 controller core operating at up to 80 MHz, with 256 kB flash, 48 kB SRAM, a 32-ch DMA, a 32-bit external peripheral interface, and ROM preloaded with the StellarisWare Driver Library, Boot Loader, AES encryption lookup tables, and a cyclical redundancy check (CRC) function. The LM3S5R31 also features real-time industrial connectivity, with a CAN controller, USB 2.0 Full Speed Device2 SSI / SPI controllers, 2 I2C interfaces, an I2S interface, and 3 UARTs. The LM3S5R31 microcontroller also features advanced motion control features, including 8 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 LM3S5R31 microcontroller provides 16 digital comparators, a 24-bit systick timer, 4 32-bit or 8 16-bit general-purpose timers, 2 watchdog timers, 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 67 GPIOs.

LM3S5R36
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LM3S5R36

The Stellaris® LM3S5R36 microcontroller is based on the ARM® Cortex?-M3 controller core operating at up to 80 MHz, with 256 kB flash, 48 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 LM3S5R36 also features real-time industrial connectivity, with a CAN controller, USB 2.0 Full Speed Device2 SSI / SPI controllers, 2 I2C interfaces, and 3 UARTs. The LM3S5R36 microcontroller also features advanced motion control features, including 8 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 LM3S5R36 microcontroller provides 16 digital comparators, a 24-bit systick timer, 4 32-bit or 8 16-bit general-purpose timers, 2 watchdog timers, 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 33 GPIOs.