LM4F120B2QR Stellaris 微处理器
The LM4F120B2QR 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,
|
LM4F120B2QR |
| Flash (KB) |
32 |
| RAM (KB) |
12 |
| 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 |
4 |
| 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 |
43 |
| Dedicated 5-V Tolerant GPIOs |
0 |
| Digital Comparators |
16 |
| Battery-Backed Hibernation Module |
Yes |
| Internal LDO Voltage Regulator |
Yes |
| Active Current (mA) /Mhz |
pending |
| Standby Current (uA) |
pending |
| Pin/Package |
64LQFP |
| Package Area (mm2) |
100 |
LM4F120B2QR 特性
- 32-bit ARM® Cortex™-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 32 KB single-cycle Flash up to 40 MHz (a prefetch buffer improves performance above 40 MHz), 12 KB single-cycle SRAM; internal ROM loaded with StellarisWare® 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; four 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™-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 43 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
LM4F120B2QR 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 |
| LM4F120B2QRFIGR |
PREVIEW |
|
|
LQFP (PM) | 64 |
1500 |
|
LM4F120B2QR 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 |
| LM4F120B2QRFIGR |
TBD |
Call TI |
Call TI |
LM4F120B2QRFIGR |
LM4F120B2QRFIGR |
LM4F120B2QR 应用技术支持与电子电路设计开发资源下载
- LM4F120B2QR 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
LM4F120B2QR 工具与软件
