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LM3S301

NOT RECOMMENDED FOR NEW DESIGNS

Stellaris LM3S Microcontroller

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Data sheet
Errata
LM3S301 is not recommended for new designs
This product continues to be available for existing customers. New designs should consider an alternate product.
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LM3S301

NOT RECOMMENDED FOR NEW DESIGNS
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Product details

Flash memory (kByte) 16 Number of GPIOs 33 UART 1 Number of I2Cs 0 Operating temperature range (°C) -40 to 85 PWM (Ch) 2 CAN (#) 0 Rating Catalog
Flash memory (kByte) 16 Number of GPIOs 33 UART 1 Number of I2Cs 0 Operating temperature range (°C) -40 to 85 PWM (Ch) 2 CAN (#) 0 Rating Catalog
LQFP (PT) 48 81 mm² 9 x 9

  • 32-bit ARM® Cortex™-M3 20-MHz processor core with System Timer (SysTick), integrated Nested Vectored Interrupt Controller (NVIC), Memory Protection Unit (MPU), and Thumb-2 instruction set

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

  • 16 KB single-cycle flash and 2 KB single-cycle SRAM

  • 12-33 GPIOs (depending on configuration) with programmable control for GPIO interrupts and pad configuration

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

  • 10-bit Analog-to-Digital Converter (ADC) with three analog input channels and a sample rate of 250 thousand samples/second

  • Fully programmable 16C550-type UART

  • Synchronous Serial Interface (SSI), supporting operation for Freescale SPI, MICROWIRE, or Texas Instruments synchronous serial interfaces

  • Two integrated analog comparators configurable for output to initiate an ADC sample sequence, drive an output pin or generate an interrupt

  • One PWM generator blocks, each with one 16-bit counter, two PWM comparators, a PWM signal generator, a dead-band generator, and an interrupt/ADC-trigger selector

  • Industrial and extended temperature RoHS-compliant 48-pin LQFP and 48-pin QFN package

  • 32-bit ARM® Cortex™-M3 20-MHz processor core with System Timer (SysTick), integrated Nested Vectored Interrupt Controller (NVIC), Memory Protection Unit (MPU), and Thumb-2 instruction set

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

  • 16 KB single-cycle flash and 2 KB single-cycle SRAM

  • 12-33 GPIOs (depending on configuration) with programmable control for GPIO interrupts and pad configuration

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

  • 10-bit Analog-to-Digital Converter (ADC) with three analog input channels and a sample rate of 250 thousand samples/second

  • Fully programmable 16C550-type UART

  • Synchronous Serial Interface (SSI), supporting operation for Freescale SPI, MICROWIRE, or Texas Instruments synchronous serial interfaces

  • Two integrated analog comparators configurable for output to initiate an ADC sample sequence, drive an output pin or generate an interrupt

  • One PWM generator blocks, each with one 16-bit counter, two PWM comparators, a PWM signal generator, a dead-band generator, and an interrupt/ADC-trigger selector

  • Industrial and extended temperature RoHS-compliant 48-pin LQFP and 48-pin QFN package

The Stellaris® LM3S301 microcontroller is based on the ARM® Cortex™-M3 controller core operating at up to 20 MHz, with 16 kB flash and 2 kB SRAM. The LM3S301 also features real-time industrial connectivity, with an SSI / SPI controller, and a UART. The LM3S301 microcontroller also features advanced motion control features, including 2 motion-control PWM outputs with dead-band and 1 fault protection inputs for low-latency shutdown. The microcontroller also features intelligent analog capability, including 2 analog comparators and 3 channels of highly accurate 10-bit analog-to-digital conversion - with the ability to sample at speeds of 250K samples per second. Finally, the LM3S301 microcontroller provides a 24-bit systick timer, 2 32-bit or 4 16-bit general-purpose timers, a watchdog timer, 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.

The Stellaris® LM3S301 microcontroller is based on the ARM® Cortex™-M3 controller core operating at up to 20 MHz, with 16 kB flash and 2 kB SRAM. The LM3S301 also features real-time industrial connectivity, with an SSI / SPI controller, and a UART. The LM3S301 microcontroller also features advanced motion control features, including 2 motion-control PWM outputs with dead-band and 1 fault protection inputs for low-latency shutdown. The microcontroller also features intelligent analog capability, including 2 analog comparators and 3 channels of highly accurate 10-bit analog-to-digital conversion - with the ability to sample at speeds of 250K samples per second. Finally, the LM3S301 microcontroller provides a 24-bit systick timer, 2 32-bit or 4 16-bit general-purpose timers, a watchdog timer, 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.
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Technical documentation

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Type Title Date
* Data sheet Stellaris LM3S301 Microcontroller Data Sheet datasheet (Rev. I) 15 Jul 2014
* Errata Stellaris LM3S Sandstorm-, Fury-, and DustDevil-Class Microcontrollers Errata 26 Jun 2014
* Errata ARM Cortex-M3 Errata (r1p0) 24 Oct 2008

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