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Home » NEWEST Products » New by Manufacturer » Texas Instruments » LM3S5C56 / LM3S5G51 Stellaris® MCUs - TI INACTIVE
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TI LM3S5C56 / LM3S5G51 Stellaris® Microcontrollers
TI LM3S5C56 / LM3S5G51 Stellaris® Microcontrollers

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TI LM3S5C56 / LM3S5G51 Stellaris® MCUs

Texas Instruments LM3S5C56, LM3S5G51, and LM3S5R31 Stellaris® microcontrollers (MCUs) implement Cortex-M3 and the Thumb-2 instruction set. Thumb-2 uses 26 percent less memory than pure 32-bit code to reduce system cost while delivering 25 percent better performance. The TI LM3S5C56, LM3S5G51, and LM3S5R31 feature an ARM Cortex-M3 processor core with 80MHz operation and 100 DMIPS performance. TI LM3S5C56 Stellaris MCUs offer 512KB single-cycle Flash memory up to 50MHz and 64KB single-cycle SRAM while LM3S5G51 MCUs offer 384KB Flash and 64KB single-cycle SRAM. LM3S5R31 MCUs offer 256KB single-cycle Flash memory up to 50MHz and 48KB single-cycle SRAM. These LM3S5 devices provide a prefetch buffer that improves performance above 50MHz. These TI Stellaris MCUs are designed for use in a wide range of industrial applications, including remote monitoring, electronic point-of-sale machines, test and measurement equipment, network appliances and switches, factory automation, and more.

LM3S5C56 Features
  • 32-bit ARM® Cortex™-M3 80-MHz processor core with System Timer (SysTick), integrated Nested Vectored Interrupt Controller (NVIC), Memory Protection Unit (MPU), and Thumb-2 instruction set
  • On-chip memory, featuring: 512 KB single-cycle Flash up to 50 MHz (a prefetch buffer improves performance above 50 MHz); 64 KB single-cycle SRAM; internal ROM loaded with StellarisWare® software
  • One Controller Area Network (CAN) module, using CAN protocol version 2.0 part A/B and with bit rates up to 1 Mbps
  • Universal Serial Bus (USB) controller with USB 2.0 full-speed (12 Mbps) and low-speed (1.5 Mbps) operation, 32 endpoints, and USB OTG/Host/Device mode
  • Advanced serial integration, featuring: three UARTs with IrDA and ISO 7816 support; two Synchronous Serial Interface (SSI) modules, supporting operation for Freescale SPI, MICROWIRE, or Texas Instruments synchronous serial interfaces; two Inter-Integrated Circuit (I2C) modules, providing Standard (100 Kbps) and Fast (400 Kbps) transmission and support for sending and receiving data as either a master or a slave
  • ARM PrimeCell® 32-channel configurable μDMA controller, providing a way to offload data transfer tasks from the Cortex™-M3 processor, allowing for more efficient use of the processor and the available bus bandwidth
  • Analog support, featuring: two 12-bit Analog-to-Digital Converters (ADC) with eight analog input channels and a sample rate of one million samples/second; two analog comparators; 16 digital comparators; on-chip voltage regulator
  • Advanced motion control, featuring: three 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; four PWM fault inputs to promote low-latency shutdown; one Quadrature Encoder Interface (QEI) module, with position integrator to track encoder position and velocity capture using built-in timer
  • Two ARM FiRM-compliant watchdog timers; four 32-bit general-purpose timers (up to eight 16-bit); eight Capture Compare (CCP) PWM pins
  • Up to 33 GPIOs (depending on configuration), with programmable control for GPIO interrupts and pad configuration, and highly flexible pin muxing
  • Lower-power battery-backed Hibernation module with Real-Time Clock
  • Multiple clock sources for microcontroller system clock: Precision Oscillator (PIOSC), Main Oscillator (MOSC), 32.768-kHz external oscillator for the Hibernation Module, and Internal 30-kHz Oscillator
  • Full-featured debug solution with debug access via JTAG and Serial Wire interfaces, and IEEE 1149.1-1990 compliant Test Access Port (TAP) controller
  • Industrial-range (-40°C to 85°C) RoHS-compliant 64-pin LQFP

LM3S5C56 Block Diagram
LM3S5C56 Block Diagram
LM3S5G51 Features
  • 32-bit ARM® Cortex™-M3 80-MHz processor core with System Timer (SysTick), integrated Nested Vectored Interrupt Controller (NVIC), Memory Protection Unit (MPU), and Thumb-2 instruction set
  • On-chip memory, featuring: 384 KB single-cycle Flash up to 50 MHz (a prefetch buffer improves performance above 50 MHz); 64 KB single-cycle SRAM; internal ROM loaded with StellarisWare® software
  • Two Controller Area Network (CAN) modules, using CAN protocol version 2.0 part A/B and with bit rates up to 1 Mbps
  • Universal Serial Bus (USB) controller with USB 2.0 full-speed (12 Mbps) and low-speed (1.5 Mbps) operation, 32 endpoints, and USB OTG/Host/Device mode
  • Advanced serial integration, featuring: three UARTs with IrDA and ISO 7816 support (one UART with modem status and modem flow control); two Synchronous Serial Interface (SSI) modules, supporting operation for Freescale SPI, MICROWIRE, or Texas Instruments synchronous serial interfaces; two Inter-Integrated Circuit (I2C) modules, providing Standard (100 Kbps) and Fast (400 Kbps) transmission and support for sending and receiving data as either a master or a slave; one Integrated Interchip Sound (I2S) module, containing a transmit module and a receive module configurable for I2S, Left-Justified, and Right-Justified serial audio formats
  • ARM PrimeCell® 32-channel configurable μDMA controller, providing a way to offload data transfer tasks from the Cortex™-M3 processor, allowing for more efficient use of the processor and the available bus bandwidth
  • Analog support, featuring: two 12-bit Analog-to-Digital Converters (ADC) with 16 analog input channels and a sample rate of one million samples/second; two analog comparators; 16 digital comparators; on-chip voltage regulator
  • Advanced motion control, featuring: three 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; four PWM fault inputs to promote low-latency shutdown; two Quadrature Encoder Interface (QEI) modules, with position integrator to track encoder position and velocity capture using built-in timer
  • Two ARM FiRM-compliant watchdog timers; four 32-bit general-purpose timers (up to eight 16-bit); eight Capture Compare (CCP) PWM pins
  • Up to 67 GPIOs (depending on configuration), with programmable control for GPIO interrupts and pad configuration, and highly flexible pin muxing
  • Lower-power battery-backed Hibernation module with Real-Time Clock
  • Multiple clock sources for microcontroller system clock: Precision Oscillator (PIOSC), Main Oscillator (MOSC), 32.768-kHz external oscillator for the Hibernation Module, and Internal 30-kHz Oscillator
  • Full-featured debug solution with debug access via JTAG and Serial Wire interfaces, and IEEE 1149.1-1990 compliant Test Access Port (TAP) controller
  • Industrial-range (-40°C to 85°C) RoHS-compliant 100-pin LQFP and 108-ball BGA

LM3S5G51 Block Diagram
LM3S5G51 Block Diagram
LM3S5R31 Features
  • ARM Cortex-M3 Processor Core
    • 80-MHz operation; 100 DMIPS performance
    • ARM Cortex SysTick Timer
    • Nested Vectored Interrupt Controller (NVIC)
  • On-Chip Memory
    • 256 KB single-cycle Flash memory up to 50 MHz; a prefetch buffer improves performance above 50 MHz
    • 48KB single-cycle SRAM
    • Internal ROM loaded with StellarisWare® software:
      • Stellaris Peripheral Driver Library
      • Stellaris Boot Loader
      • Advanced Encryption Standard (AES) cryptography tables
      • Cyclic Redundancy Check (CRC) error detection functionality
  • External Peripheral Interface (EPI)
    • 8/16/32-bit dedicated parallel bus for external peripherals
    • Supports SDRAM, SRAM/Flash memory, FPGAs, CPLDs
  • Advanced Serial Integration
    • CAN 2.0 A/B controller
    • USB 2.0 Device

LM3S5R31 Block Diagram
LM3S5R31 Block Diagram


Video: Introduction to Stellaris ARM Cortex-M3 MCUs

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