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LM3S6432 Microcontroller

The LM3S6432 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, 10/100 Ethernet MAC/PHY, Systick timer, three 32-bit or six 16-bit general purpose timers, watchdog timer, SSI / SPI controller, I2C interface, two analog comparators, two UARTs, 10-bit analog-to-digital converter (ADC) with three input channels, two motion-control Pulse Width Modulation (PWM) outputs, low drop-out voltage regulator, brown-out reset, power-on reset controller, and up to 43 GPIOs.

Download the full product brief

Documents and Software Downloads

Data Sheets

Doc number Description Date Download
DS-LM3S6432-4283LM3S6432 Microcontroller Datasheet11/18/08download
ARM V7 Architecture Shortform Doc 03/30/06 download

App Notes

Doc number Description Date Download
AN01237-04Programming the On-Chip Flash Memory in a Stellaris Microcontroller10/28/08download
AN01239-03ADC Oversampling Techniques10/28/08download
AN01240-03Clocking options for Stellaris Family Microcontrollers10/28/08download
AN01241-02Using a Stellaris Microcontroller as an I/O Processor10/28/08download
AN01242-02Using the Stellaris Serial Flash Loader01/22/08download
AN01243-01Adding 32KB of Serial SRAM to a Stellaris Microcontroller06/24/08download
AN01244-02Evaluating PeerSec Networks’ MatrixSSL on a Stellaris Microcontroller10/28/08download
AN01247-02Using the Stellaris Microcontroller Analog-to-Digital Converter10/28/08download
AN01248-04Using the Stellaris Boot Loader10/28/08download
AN01249-02Upgrading to Luminary Micro's Stellaris Microcontrollers from Microchip's PIC Microcontrollers10/28/08download
AN01250-02Migrating to the New Members of the Stellaris® Family of Microcontrollers10/28/08download
AN01255-01Flash Protection for Stellaris® Microcontrollers10/28/08download
AN01260-03Using the Stellaris® Ethernet Controller with Micro IP (uIP)10/28/08download
AN01261-04Using the Stellaris® Ethernet Controller with Lightweight IP (lwIP)10/28/08download
AN01265-01Optimizing Code Performance and Size for Stellaris Microcontrollers06/24/08download

Errata

Doc number Description Date Download
Errata_LM3S6432-1.5Stellaris LM3S6432 Errata09/22/08download

Software Downloads

Doc number Description Date Download
SW01242-651Source code for application note AN0124211/11/08download
SW01244-221Source code for application note AN0124811/11/08download
SW-LM3S-3618StellarisWare complete (all boards, all components) Firmware Development Package11/05/08download
LMFlashProgrammer-b655GUI and command line flash programmer11/04/08download
SW01266-195Source code for application note AN0126601/25/08download
SW01248-495Source code for application note AN0124809/18/07download

Product Change Notices (PCN)

Doc number Description Date Download
LMI-PCN-0800005_A_LM3S6432-00LM3S6432 board-level design change requirement for future compatibility.05/15/08download
LMI-PCN-70098_A_LM3S6432-00Introduction of ASAT, package marking change.12/21/07download

Available 3rd Party Products

Hardware Tools

Tool Type Company Product Name
Emulator Rowley Associates ARM USB CrossConnect
Emulator Keil, an ARM® Company ULINK2 USB-JTAG Adapter
Emulator IAR Systems J-Link™ USB-JTAG Debug Probe

Software Tools

Tool Type Company Product Name
SW Toolkit Keil, an ARM® Company RealView® MDK-ARM Microcontroller Development Kit
SW Toolkit CodeSourcery Sourcery G++ Open source software toolkit with GDB support over SWD
SW Toolkit ARM® RealView® Development Suite
RTOS FreeRTOS.org™ FreeRTOS™ is a portable, open source, small footprint real time kernel.
SW Toolkit Rowley Associates CrossWorks for ARM
RTOS Pumpkin, Inc. Salvo, the RTOS that runs in tiny places.™
SW Toolkit IAR Systems IAR Embedded Workbench™
SW Toolkit IAR Systems visualSTATE State machine design, test and verification tools
RTOS ThreadX® Express Logic's ThreadX is a small-footprint, fast, royalty-free real-time operating system (RTOS).
RTOS µC/OS-II Micriµm's µC/OS-II — The Real-Time Kernel. A highly portable, ROMable, very scalable, preemptive real-time, multitasking kernel (RTOS) for microprocessors and microcontrollers.
RTOS CMX CMX-RTX is a real-time multi-tasking operating system for microprocessors, microcomputers and DSPs.
CMX-TINY+'s footprint is made to fit within small amounts of onboard RAM – in the range of 512 bytes and up.
SW Toolkit Interniche Technologies, Inc. NicheTask NicheTask is a round-robin tasking system that contains only control logic.
Stellaris Network Evaluation Kits are pre-integrated systems of complementary networking technologies (TCP/IP stacks, file systems, etc.) that exercise and demonstrate the capability of the Stellaris integrated microcontrollers.
SW Toolkit code_red Red Suite is a complete software development platform for 32-bit microcontroller devices available to target Luminary Micro Stellaris® Cortex-M3 based microcontrollers. Features include MCU specific project wizards, a full embedded debugger, text indentation, function folding, online and offline integrated MCU help, extensive project management automation and integrated source repository support.

Ordering Part Numbers and Information

Ordering Information

Ordering Part Number Description
LM3S6432-EQC50 Stellaris® LM3S6432Microcontroller, 96K, 100-LQFP, -40° C to 105° C
LM3S6432-EQC50(T) Stellaris® LM3S6432Microcontroller, 96K, 100-LQFP, -40° C to 105° C, Tape & Reel
LM3S6432-IBZ50 Stellaris® LM3S6432Microcontroller, 96K, 108-BGA, -40° C to 85° C
LM3S6432-IBZ50(T) Stellaris® LM3S6432Microcontroller, 96K, 108-BGA, -40° C to 85° C, Tape & Reel
LM3S6432-IQC50 Stellaris® LM3S6432Microcontroller, 96K, 100-LQFP, -40° C to 85° C
LM3S6432-IQC50(T) Stellaris® LM3S6432Microcontroller, 96K, 100-LQFP, -40° C to 85° C, Tape & Reel

LM3S6965 Evaluation Kits

Product Features

32-Bit RISC Performance

  • 50-MHz operation with 32-bit ARM® Cortex™-M3 architecture
  • Thumb®-compatible Thumb-2-only instruction set, with hardware-division and single-cycle-multiplication
  • Integrated Nested Vectored Interrupt Controller (NVIC)
  • Memory protection unit (MPU)
On-Chip Memory
  • 96-KB single-cycle flash
  • 32-KB single-cycle SRAM
Flexible Timer Capability
  • Three general-purpose timers, each configurable as one 32-bit or two 16-bit timers
  • Real-Time Clock (RTC) capability
  • 24-bit system (SysTick) timer
  • 32-bit watchdog timer
10/100 Ethernet Controller
  • Conforms to the IEEE 802.3-2002 Specification
  • Full- and half-duplex for both 100-Mbps and 10-Mbps operation
  • Integrated 10/100 Mbps Transceiver (PHY)
  • Automatic MDI/MDI-X cross-over correction
  • Programmable MAC address
Serial Interfaces
  • One synchronous serial interfaces (SSI) with master and slave modes for SPI, Microwire, or TI synchronous serial
  • One I2C interfaces (master and slave)
  • Two 16C550-type UARTs with IrDA support
Analog-to-Digital Converter (ADC)
  • Single- and differential-input configurations
  • Three 10-bit channels (inputs) when used as single-ended inputs
  • Sample rate up to two hundred fifty thousand samples/second
Analog Comparators
  • Two independent integrated analog comparators
  • 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
Dedicated Motion-Control PWM
  • Two 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
GPIOs
  • Up to forty-three 5-V-tolerant input/outputs
  • Programmable interrupt generation
  • Fast toggle capable of a change every two clock cycles
  • Programmable slew-rate control
  • Programmable drive strength
Power
  • On-chip Low Drop-Out (LDO) voltage regulator
  • 3.3-V supply brown-out detection
Package
  • 100-pin RoHS-compliant LQFP package
    • Industrial-range (-40°C to +85°C)
    • Extended-range (-40°C to +105°C)
  • 108-ball RoHS-compliant BGA package
    • Industrial-range (-40°C to +85°C)