The LM3S818 is based on the high-performance ARM® Cortex™-M3 v7M architecture. It is fully Thumb®-compatible with a Thumb-2-only instruction set and features hardware-division and single-cycle-multiplication. The integrated Nested Vectored Interrupt Controller (NVIC) provides deterministic interrupt handling. 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
• 50-MHz operation
• Hardware-division and single-cycle-multiplication
• Integrated Nested Vectored Interrupt Controller
• interrupt channels with eight priority levels
• 64 KB single-cycle flash
• 8 KB single-cycle SRAM
• 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
• Two fully programmable 16C550-type UARTs
• Separate 16x8 transmit (TX) and 16x12 receive (RX) FIFOs to reduce CPU interrupt service loading
• Programmable baud-rate generator
• ADC Single- and differential-input configurations
• Six 10-bit ADC channels (inputs) when used as single-ended inputs
• ADC Sample rate of 1M 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
• Hardware position integrator tracks the encoder position
• Velocity capture using built-in timer
• Interrupt generation on index pulse, velocity-timer expiration, and direction change
• 0 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