LM3S2948 Stellaris 微处理器
The Stellaris(R) LM3S2948 microcontroller is based on the ARM(R) CortexTM-M3 controller core operating at up to 50 MHz, with 256 kB flash and 64 kB SRAM. The LM3S2948 also features real-time industrial connectivity, with 2 CAN controllers, 2 SSI / SPI controllers, an I2C interface, and 3 UARTs. The microcontroller also features intelligent analog capability, including 3 analog comparators and 8 channels of highly accurate 10-bit analog-to-digital conversion - with the ability to sample at speeds of 1M samples per second. Finally, the LM3S2948 microcontroller provides a 24-bit systick timer, 4 32-bit or 8 16-bit general-purpose timers, a watchdog timer, a battery-backed hibernation module with RTC and 256 bytes of non-volatile state-saving memory, a low drop-out voltage regulator so that only one supply voltage is required, brown-out reset, power-on reset controller, and up to 52 GPIOs.
|
LM3S2948 |
| Flash (KB) |
256 |
| RAM (KB) |
64 |
| StellarisWare in ROM |
No |
| Boot Loader in ROM |
0 |
| DMA |
0 |
| SafeRTOS |
0 |
| Max Speed (MHz) |
50 |
| Precision Oscillators |
No |
| Memory Protection Unit (MPU) |
Yes |
| Timers |
5 |
| RTC |
Yes |
| Watchdog Timers |
1 |
| Motion PWM |
0 |
| PWM Faults |
0 |
| Dead-Band Generator |
No |
| Capture Pins |
8 |
| QEI |
0 |
| EPI/EMIF |
No |
| Ethernet |
No |
| IEEE 1588 |
No |
| CAN |
2 |
| USB D, H/D, or OTG |
No |
| UART |
3 |
| UART Modem Status |
No |
| I2C |
1 |
| SSI/SPI |
2 |
| I2S |
No |
| ADC Units |
1 |
| ADC Channels |
8 |
| ADC Resolution (Bits) |
10 |
| ADC Sample Rate (kSPS) |
1000 |
| ADC Ext Reference |
No |
| Internal Temp Sensor |
1 |
| Analog Comparators |
3 |
| Maximum 5-V Tolerant GPIOs |
52 |
| Dedicated 5-V Tolerant GPIOs |
12 |
| Digital Comparators |
0 |
| Battery-Backed Hibernation Module |
Yes |
| Internal LDO Voltage Regulator |
Yes |
| Active Current (mA) /Mhz |
pending |
| Standby Current (uA) |
pending |
| Operating Temperature Range (C) |
-40 to 105,-40 to 85 |
| Pin/Package |
100LQFP, 108NFBGA |
| Package Area (mm2) |
100,196 |
| Approx. Price (US$) |
4.65 | 1ku |
LM3S2948 特性
- 32-bit ARM(R) CortexTM-M3 50-MHz processor core with System Timer (SysTick), integrated Nested Vectored Interrupt Controller (NVIC), Memory Protection Unit (MPU), and Thumb-2 instruction set
- Full-featured debug solution with debug access via JTAG and Serial Wire interfaces, and IEEE 1149.1-1990 compliant Test Access Port (TAP) controller
- 256 KB single-cycle flash and 64 KB single-cycle SRAM
- Lower-power battery-backed Hibernation module with Real-Time Clock
- 12-52 GPIOs (depending on configuration) with programmable control for GPIO interrupts and pad configuration
- ARM FiRM-compliant Watchdog Timer ; plus four General-Purpose Timer Modules (GPTM), each of which provides two 16-bit timers/counters and can be configured to operate independently
- 10-bit Analog-to-Digital Converter (ADC) with eight analog input channels and a sample rate of one million samples/second
- Three fully programmable 16C550-type UARTs with IrDA support
- Two Synchronous Serial Interface (SSI) modules, supporting operation for Freescale SPI, MICROWIRE, or Texas Instruments synchronous serial interfaces
- Inter-Integrated Circuit (I2C) Interface, providing Standard (100 Kbps) and Fast (400 Kbps) transmission and support for sending and receiving data as either a master or a slave
- Two Controller Area Network (CAN) Interface modules using CAN protocol version 2.0 part A/B and with bit rates up to 1 Mbps
- Three integrated analog comparators configurable for output to initiate an ADC sample sequence, drive an output pin or generate an interrupt
- Industrial and extended temperature RoHS-compliant 100-pin LQFP package and industrial-range RoHS-compliant 108-ball BGA package
LM3S2948 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 |
| LM3S2948-EQC50-A2 |
ACTIVE |
-40 to 105 |
6.05 | 1ku |
LQFP (PZ) | 100 |
90 |
|
| LM3S2948-EQC50-A2T |
ACTIVE |
-40 to 105 |
6.10 | 1ku |
LQFP (PZ) | 100 |
1000 | LARGE T&R |
|
| LM3S2948-IBZ50-A2 |
ACTIVE |
-40 to 85 |
4.65 | 1ku |
NFBGA (ZCR) | 108 |
184 |
|
| LM3S2948-IBZ50-A2T |
ACTIVE |
-40 to 85 |
4.70 | 1ku |
NFBGA (ZCR) | 108 |
1500 | LARGE T&R |
|
| LM3S2948-IQC50-A2 |
ACTIVE |
-40 to 85 |
4.65 | 1ku |
LQFP (PZ) | 100 |
90 |
|
| LM3S2948-IQC50-A2T |
ACTIVE |
-40 to 85 |
4.70 | 1ku |
LQFP (PZ) | 100 |
1000 | LARGE T&R |
|
LM3S2948 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 |
| LM3S2948-EQC50-A2 |
Green (RoHS & no Sb/Br) |
SN |
Level-3-260C-168 HR |
LM3S2948-EQC50-A2 |
LM3S2948-EQC50-A2 |
| LM3S2948-EQC50-A2T |
Green (RoHS & no Sb/Br) |
SN |
Level-3-260C-168 HR |
LM3S2948-EQC50-A2T |
LM3S2948-EQC50-A2T |
| LM3S2948-IBZ50-A2 |
Green (RoHS & no Sb/Br) |
SNAGCU |
Level-3-260C-168 HR |
LM3S2948-IBZ50-A2 |
LM3S2948-IBZ50-A2 |
| LM3S2948-IBZ50-A2T |
Green (RoHS & no Sb/Br) |
SNAGCU |
Level-3-260C-168 HR |
LM3S2948-IBZ50-A2T |
LM3S2948-IBZ50-A2T |
| LM3S2948-IQC50-A2 |
Green (RoHS & no Sb/Br) |
SN |
Level-3-260C-168 HR |
LM3S2948-IQC50-A2 |
LM3S2948-IQC50-A2 |
| LM3S2948-IQC50-A2T |
Green (RoHS & no Sb/Br) |
SN |
Level-3-260C-168 HR |
LM3S2948-IQC50-A2T |
LM3S2948-IQC50-A2T |
LM3S2948 应用技术支持与电子电路设计开发资源下载
- LM3S2948 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
LM3S2948 工具与软件