LM4F121E5QR Stellaris 微处理器
The LM4F121E5QR microcontroller is targeted for industrial applications, including remote monitoring, electronic point-of-sale machines, test and measurement equipment, network appliances and switches, factory automation, HVAC and building control,
| LM4F121E5QR | |
| Flash (KB) | 128 |
| RAM (KB) | 32 |
| StellarisWare in ROM | Yes |
| Boot Loader in ROM | 1 |
| DMA | 32 |
| SafeRTOS | 0 |
| Max Speed (MHz) | 80 |
| Precision Oscillators | Yes |
| Memory Protection Unit (MPU) | Yes |
| Timers | 13 |
| RTC | Yes |
| Watchdog Timers | 2 |
| Motion PWM | 0 |
| PWM Faults | 0 |
| Dead-Band Generator | No |
| Capture Pins | 24 |
| QEI | 0 |
| EPI/EMIF | No |
| Ethernet | No |
| IEEE 1588 | No |
| CAN | 1 |
| USB D, H/D, or OTG | D |
| UART | 8 |
| UART Modem Status | Yes |
| I2C | 6 |
| SSI/SPI | 4 |
| I2S | No |
| ADC Units | 2 |
| ADC Channels | 12 |
| ADC Resolution (Bits) | 12 |
| ADC Sample Rate (kSPS) | 1000 |
| ADC Ext Reference | No |
| Internal Temp Sensor | 1 |
| Analog Comparators | 2 |
| Maximum 5-V Tolerant GPIOs | 49 |
| Dedicated 5-V Tolerant GPIOs | 0 |
| Digital Comparators | 16 |
| Battery-Backed Hibernation Module | No |
| Internal LDO Voltage Regulator | Yes |
| Active Current (mA) /Mhz | pending |
| Standby Current (uA) | pending |
| Pin/Package | 64LQFP |
| Package Area (mm2) | 100 |
LM4F121E5QR 特性
- 32-bit ARM(R) CortexTM-M4F 80-MHz processor core with System Timer (SysTick), integrated Nested Vectored Interrupt Controller (NVIC), Wake-Up Interrupt Controller (WIC) with clock gating, Memory Protection Unit (MPU), IEEE754-compliant single-precision Floating-Point Unit (FPU), Embedded Trace Macro and Trace Port, System Control Block (SCB) and Thumb-2 instruction set
- On-chip memory, featuring 128 KB single-cycle Flash up to 40 MHz (a prefetch buffer improves performance above 40 MHz), 32 KB single-cycle SRAM; internal ROM loaded with StellarisWare(R) software; 2KB EEPROM
- 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 Device mode
- Advanced serial integration, featuring: eight UARTs with IrDA, 9-bit, and ISO 7816 support (one UART with modem status and modem flow control); four Synchronous Serial Interface (SSI) modules, supporting operation for Freescale SPI, MICROWIRE, or Texas Instruments synchronous serial interfaces; six 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(R) 32-channel configurable μDMA controller, providing a way to offload data transfer tasks from the CortexTM-M4F 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 12 analog input channels and a sample rate of one million samples/second; two analog comparators; 16 digital comparators; on-chip voltage regulator
- Two ARM FiRM-compliant watchdog timers; six 32-bit general-purpose timers (up to twelve 16-bit); twelve 16/32-bit Capture Compare PWM (CCP) pins
- Two ARM FiRM-compliant watchdog timers; six wide 64-bit general-purpose timers (up to twelve 32-bit); twelve 32/64-bit Capture Compare PWM (CCP) pins
- Up to 49 GPIOs (depending on configuration), with programmable control for GPIO interrupts and pad configuration, and highly flexible pin muxing
- Multiple clock sources for microcontroller system clock: Precision Oscillator (PIOSC), Main Oscillator (MOSC), 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
LM4F121E5QR 芯片订购指南
| 器件 | 状态 | 温度 | 价格 | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| LM4F121E5QRFIGR | PREVIEW | LQFP (PM) | 64 | 1500 |
LM4F121E5QR 质量与无铅数据
| 器件 | 环保计划* | 铅/焊球涂层 | MSL 等级/回流焊峰 | 环保信息与无铅 (Pb-free) | DPPM / MTBF / FIT 率 |
| LM4F121E5QRFIGR | TBD | Call TI | Call TI | LM4F121E5QRFIGR | LM4F121E5QRFIGR |
LM4F121E5QR 应用技术支持与电子电路设计开发资源下载
- LM4F121E5QR 数据资料 dataSheet 下载.PDF
- TI 德州仪器ARM 处理器选型与价格 . xls
- OMAP-L13x/AM1x Linux PSP Overview
- ARM Assembly Language Tools v4.7 User's Guide
- ARM Optimizing C/C++ Compiler v4.7 User's Guide
- Power Management for AM18xx/AM17xx Processors
- ARM Portfolio Technical Overview Brochure
- Software and Hardware Design Challenges due to Dynamic Raw NAND Market
- Programmable Real-Time Unit (PRU): Extending Functionality Of Existing SoCs
LM4F121E5QR 工具与软件
| 培训内容 | 型号 | 软件/工具类型 |
| LM4F121E5QR 评估模块 | LM4F121E5QREVM | 开发电路板/EVM |
| SYS/BIOS 实时操作系统 (RTOS) | SYSBIOS | DSP/BIOS 实时内核 |
| Keil 调试接口 DLL | LMIDK-AGDI | 应用软件 |
| Stellaris(R) FTDI 驱动程序 | LM_FTDI_DRIVER | 应用软件 |
| Stellaris(R) MCU 的 Cortex 微处理器软件接口标准 (CMSIS) | CMSIS_LM3S | 应用软件 |
| Stellaris(R) 闪存编程器、GUI 和命令行 | LMFLASHPROGRAMMER | 应用软件 |
| StellarisWare(R) IQ Math 独立包 | SW-IQMATH | 应用软件 |
| StellarisWare(R) USB 库独立包 | SW-USBL | 应用软件 |
| StellarisWare(R) USB 库用户指南 (SW-USBL-UG) | SPMU020L | 应用软件 |
| StellarisWare(R) Windows-side USB 示例 | SW-USB-WIN | 应用软件 |
| StellarisWare(R) 启动加载程序用户指南 (SW-BOOTLDR-UG) | SPMU134K | 应用软件 |
| StellarisWare(R) 图形库独立包 | SW-GRL | 应用软件 |
| StellarisWare(R) 图形库用户指南 (SW-GRL-UG) | SPMU018L | 应用软件 |
| StellarisWare(R) 驱动程序库独立包 | SW-DRL | 应用软件 |
| StellarisWare(R) 驱动程序库用户指南 (SW-DRL-UG) | SPMU019K | 应用软件 |
| Stellaris(R) 系列驱动程序库安装程序 | PDL-LM3S-EXE | 应用软件 |
| 串行闪存加载程序 | SERIAL_FLASH_LOADER | 应用软件 |
| 使用 Stellaris(R) 9 位软件 UART (AN01280) | SPMA032 | 应用软件 |
| 使用 Stellaris(R) LM3S316 微处理器创建自动压道车 (AN01245) | SPMA009 | 应用软件 |
| 使用 Stellaris(R) LM3S615 和 LM3S316 控制数控机械 (AN01246) | SPMA027 | 应用软件 |
| 使用 Stellaris(R) 微处理器内部闪存模拟 EEPROM (AN01267) | SPMA030 | 应用软件 |
| 使用 Stellaris(R) 闪存加载程序 (AN01242) | SPMA029 | 应用软件 |
| 在 Stellaris(R) 微处理器上评估 PeerSec 网络 MatrixSSL (AN01244) | SPMA010 | 应用软件 |
| 将 IEC 60730 用于 Stellaris(R) 器件的安全可靠操作 (AN01272) | SPMA023 | 应用软件 |
| 用于 Stellaris(R) 微处理器的软件 UART (AN01270) | SPMA017 | 应用软件 |
| 配置具有引脚多路复用的 Stellaris(R) 微处理器 (AN01274) | SPMA008A | 应用软件 |
| LM3S1968 评估套件 | EK-LM3S1968 | 开发电路板/EVM |
| CAD 软件所需的原始维度数据 | STELLARIS_PLB_LIB | 特定应用库 |
| Stellaris MCU 封装的 CAD 库 | STELLARIS_PCB_LIB | 特定应用库 |
| 用于 Altium 的 Stellaris(R) 原理图元件库（引用自 AN01256） | LM_PARTLIBRARY_ALTIUM | 特定应用库 |
| 用于 OrCAD 的 Stellaris(R) 原理图元件库（引用自 AN01256） | LM_PARTLIBRARY_ORCAD | 特定应用库 |
| 用于 PADS 逻辑的 Stellaris(R) 原理图元件库（引用自 AN01256） | LM_PARTLIBRARY_PADSLOGIC | 特定应用库 |