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1800 Series Devices

Featuring 256K bytes of single cycle flash, 32K bytes of single cycle SRAM, and 50 MHz performance, Stellaris LM3S1800 series microcontrollers are perfect for cost-effective embedded control applications. The LM3S1800 series includes a battery-backed hibernation module featuring a real time clock (RTC) and 256 bytes of non-volatile state-save memory. Analog features in the LM3S1800 series include 3 analog comparators. In addition, the series features 6 PWM outputs and a quadrature encoder input for sophisticated motion control.

Summarized Features

UARTsGPIOsSSII2CADC Channels PWM PinsCCP PinsHibernate
LM3S1850217-5611-66√
LM3S181630-33228–8√
LM3S181130-67228–8√


Product Details



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LM3S1850

The Stellaris® LM3S1850 microcontroller is based on the ARM® Cortex™-M3 controller core operating at 50 MHz, with 256 kB single-cycle flash, 32 kB single-cycle SRAM, a 24-bit Systick Timer, 3x 32-bit or 6x 16-bit general-purpose timers, a watchdog timer, a SSI / SPI controller, an I2C interface, 2 UARTs, 3 analog comparators, a 10-bit analog-to-digital converter (ADC) with - input channels (+/- 1LSb of accuracy), a motion-control Pulse Width Modulation (PWM) module with 6 output channels, a Quadrature Encoder Input, a battery-backed hibernation module with RTC and 256 bytes of non-volatile state-saving memory, a low drop-out voltage regulator, brown-out reset, power-on reset controller, and up to 56 GPIOs.

LM3S1816
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LM3S1816

The StellarisŪ LM3S1816 microcontroller is based on the ARMŪ Cortex?-M3 controller core operating at up to 50 MHz, with 256 kB flash, 32 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 LM3S1816 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 2 analog comparators and 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 LM3S1816 microcontroller provides 8 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.

LM3S1811
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LM3S1811

The StellarisŪ LM3S1811 microcontroller is based on the ARMŪ Cortex?-M3 controller core operating at up to 50 MHz, with 256 kB flash, 32 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 LM3S1811 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 2 analog comparators and 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 LM3S1811 microcontroller provides 8 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.