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1400 Series Devices

Featuring 96K bytes of single cycle flash, 32K bytes of single cycle SRAM, and 50 MHz performance, Stellaris LM3S1400 series microcontrollers are perfect for cost-effective embedded control applications. The LM3S1400 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 LM3S1400 series include an analog comparator and up to 4 channels of 10-bit ADC at 500K samples per second. In addition, the series features 6 PWM outputs and a quadrature encoder input for sophisticated motion control.

Summarized Features

UARTsGPIOsSSII2CADC Channels PWM PinsCCP PinsHibernate
LM3S1439214-5221466√
LM3S1435221-4611224√


Product Details



LM3S1439
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LM3S1439

The Stellaris® LM3S1439 microcontroller is based on the ARM® Cortex™-M3 controller core operating at 50 MHz, with 96 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, two SSI / SPI controllers, an I2C interface, 2 UARTs, an analog comparator, a 10-bit analog-to-digital converter (ADC) with 4 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 52 GPIOs.

LM3S1435
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LM3S1435

The Stellaris® LM3S1435 microcontroller is based on the ARM® Cortex™-M3 controller core operating at 50 MHz, with 96 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, an analog comparator, a 10-bit analog-to-digital converter (ADC) with 2 input channels (+/- 1LSb of accuracy), a motion-control Pulse Width Modulation (PWM) module with 2 output channels, two Quadrature Encoder Inputs, 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 46 GPIOs.