The LM3S317 is based on the high-performance 32-bit ARM® Cortex™-M3 v7M architecture. This device integrates powerful analog-to-digital conversion and motion control pulse-width-modulation capabilities with on-chip 16kB flash and 4kB SRAM memories.

Target applications include factory automation and control, industrial control power devices, and building and home automation.

Product Features

• 32-bit ARM® Cortex™-M3 v7M architecture
• Thumb®-compatible Thumb-2-only instruction set
• 25-MHz operation
• Hardware-division and single-cycle-multiplication
• Integrated Nested Vectored Interrupt Controller
• interrupt channels with eight priority levels
• 32-bit ARM® Cortex™-M3 v7M architecture
• Thumb®-compatible Thumb-2-only instruction set
• 25-MHz operation
• Hardware-division and single-cycle-multiplication
• Integrated Nested Vectored Interrupt Controller
• interrupt channels with eight priority levels
• Three timers, each of which can be configured as a single 32-bit timer as a dual 16-bit timer
• Real-Time Clock (RTC) capability
• 32-bit down counter
• Separate watchdog clock with an enable
• Programmable interrupt generation logic
• Lock register protection from runaway software
• Programmable interface operation for Freescale SPI, National Semiconductor MICROWIRE™, or Texas Instruments synchronous serial
• Master or slave operation
• Fully programmable 16C550-type UART
• Separate 16x8 transmit (TX) and 16x12 receive (RX) FIFOs to reduce CPU interrupt service loading
• Programmable baud-rate generator
• Single- and differential-input configurations
• Six 10-bit channels (inputs) when used as single-ended inputs
• Sample rate of 250 thousand samples/second
• Flexible, configurable analog-to-digital conversion
• One independent integrated analog comparator
• Configurable for output to: drive an output pin, generate an interrupt, or initiate an ADC sample sequence
• Compare external pin input to external pin input or to internal programmable voltage reference
• Six motion-control PWM outputs
• Each PWM generator block has one 16-bit counter, two comparators, a PWM generator, and a dead-band generator
• Output control block with PWM output enable of each PWM signal
• Can initiate an ADC sample sequence
• 3 to 30 GPIOs, depending on user configuration
• Programmable interrupt generation
• Can initiate an ADC sample sequence
• Programmable drive strength and slew rate
• Bit-masking in both read and write operations through the address lines
• On-chip Linear Drop-Out (LDO) voltage regulator, with programmable output user-adjustable from 2.25 V to 2.75 V
• Low-power options on processor: Sleep and Deep-sleep modes
• Low-power options for peripherals: software controls shutdown of individual peripherals
• User-enabled LDO unregulated voltage detection and automatic reset
• 3.3-V supply brownout detection and reporting via interrupt or reset
• On-chip temperature sensor
• Debug access via JTAG and Serial Wire interfaces
• 48-pin RoHS-compliant LQFP
• Industrial operating temperature