产品描述:
TM S320C24xA和TM S320LF240xA是™的新成员,是一代数字信号处理器,是™定点平台的一部分。240xA器件提供了C2xx核心™的增强型TMS320DSP体系结构设计,以实现低成本、低功耗和高性能的处理能力。集成了多个针对数字电机和运动控制应用进行优化的高级外设,以提供真正的单芯片DSP控制器。虽然与现有的c24x™;数字信号处理器控制器设备代码兼容,但240xA提供了更高的处理性能(40MIPS)和更高水平的外设集成。有关设备的特定功能,请参阅TM 320x240xA设备摘要部分。
240xA一代提供一系列内存大小和不同的外围设备,以满足各种应用所需的特定性价比。高达32K字的闪存设备为批量生产提供了经济高效的可重新编程解决方案。240xA设备提供基于密码的"代码安全"功能,这有助于防止存储在片上Flash/ROM中的专有代码被未经授权地复制。请注意,基于闪存的器件包含一个256字引导只读存储器,以便于在线编程。240xA系列还包括与其对应的闪存完全管脚到管脚兼容的ROM设备。
所有240xA设备至少提供一个事件管理器模块,该模块已针对数字电机控制和电源转换应用进行了优化。该模块的功能包括中心和/或边缘对齐的PWM生成、防止直通故障的可编程死区以及同步模数转换。具有双事件管理器的设备可通过单个240xA DSP控制器实现多个电机和/或转换器控制。部分电动汽车引脚配备了"输入限定器"电路,可最大限度地减少由故障引起的意外引脚触发。
高性能10位模数转换器(ADC)的最小转换时间为375 ns,并提供多达16个模拟输入通道。ADC的自动排序功能允许在单个转换会话中进行最多16次转换,而不会产生任何CPU开销。 所有设备上都集成了一个串行通信接口(SCI),以提供与系统中其他设备的异步通信。对于需要额外通信接口的系统,2407A、2406A、2404A和2403A提供16位同步串行外设接口(SPI)。2407A、2406A和2403A提供符合2.0B规范的控制器区域网络(CAN)通信模块。为了最大限度地提高设备灵活性,还可以将功能引脚配置为通用输入/输出(GPIO)。为了缩短开发时间,所有设备都集成了符合JTAG标准的基于扫描的仿真。这提供了调试数字控制系统所需的非侵入式实时功能。一套完整的代码生成工具,从C编译器到行业标准的Code Composer Studio™;调试器支持该系列。众多第三方开发者不仅提供设备级开发工具,还提供系统级设计开发支持。
产品特性:
- High-Performance Static CMOS Technology
- 25-ns Instruction Cycle Time (40 MHz)
- 40-MIPS Performance
- Low-Power 3.3-V Design
- Based on TMS320C2xx DSP CPU Core
- Code-Compatible With F243/F241/C242
- Instruction Set and Module Compatible With F240
- Flash (LF) and ROM (LC) Device Options
- LF240xA: LF2407A, LF2406A, LF2403A, LF2402A
- LC240xA: LC2406A, LC2404A, LC2403A, LC2402A
- On-Chip Memory
- Up to 32K Words x 16 Bits of Flash EEPROM (4 Sectors) or ROM
- Programmable "Code-Security" Feature for the On-Chip Flash/ROM
- Up to 2.5K Words x 16 Bits of Data/Program RAM
- 544 Words of Dual-Access RAM
- Up to 2K Words of Single-Access RAM
- Boot ROM (LF240xA Devices)
- SCI/SPI Bootloader
- Up to Two Event-Manager (EV) Modules (EVA and EVB), Each Includes:
- Two 16-Bit General-Purpose Timers
- Eight 16-Bit Pulse-Width Modulation (PWM) Channels Which Enable:
- Three-Phase Inverter Control
- Center- or Edge-Alignment of PWM Channels
- Emergency PWM Channel Shutdown With External PDPINTx Pin
- Programmable Deadband (Deadtime) Prevents Shoot-Through Faults
- Three Capture Units for Time-Stamping of External Events
- Input Qualifier for Select Pins
- On-Chip Position Encoder Interface Circuitry
- Synchronized A-to-D Conversion
- Designed for AC Induction, BLDC, Switched Reluctance, and Stepper Motor Control
- Applicable for Multiple Motor and/or Converter Control
- External Memory Interface (LF2407A)
- 192K Words x 16 Bits of Total Memory: 64K Program, 64K Data, 64K I/O
- Watchdog (WD) Timer Module
- 10-Bit Analog-to-Digital Converter (ADC)
- 8 or 16 Multiplexed Input Channels
- 500 ns MIN Conversion Time
- Selectable Twin 8-State Sequencers Triggered by Two Event Managers
- Controller Area Network (CAN) 2.0B Module (LF2407A, 2406A, 2403A)
- Serial Communications Interface (SCI)
- 16-Bit Serial Peripheral Interface (SPI) (LF2407A, 2406A, LC2404A, 2403A)
- Phase-Locked-Loop (PLL)-Based Clock Generation
- Up to 40 Individually Programmable, Multiplexed General-Purpose Input/Output (GPIO) Pins
- Up to Five External Interrupts (Power Drive Protection, Reset, Two Maskable Interrupts)
- Power Management:
- Three Power-Down Modes
- Ability to Power Down Each Peripheral Independently
- Real-Time JTAG-Compliant Scan-Based Emulation, IEEE Standard 1149.1 (JTAG)
- Development Tools Include:
- Texas Instruments (TI) ANSI C Compiler, Assembler/Linker, and Code Composer Studio™; Debugger
- Evaluation Modules
- Scan-Based Self-Emulation (XDS510™;)
- Broad Third-Party Digital Motor Control Support
- Package Options
- 144-Pin LQFP PGE (LF2407A)
- 100-Pin LQFP PZ (2406A, LC2404A)
- 64-Pin TQFP PAG (LF2403A, LC2403A, LC2402A)
- 64-Pin QFP PG (2402A)
- Extended Temperature Options (A and S)
- A: –40°C to 85°C
- S: –40°C to 125°C
Code Composer Studio and XDS510 are trademarks of Texas Instruments.
Other trademarks are the property of their respective owners.
IEEE Standard 1149.1-1990, IEEE Standard Test-Access Port
TMS320C24x, TMS320C2000, TMS320, and C24x are trademarks of Texas Instruments.
CPUC24x
Frequency(频率)40
闪存(kByte)64
RAM(kByte)5
ADC分辨率(Bits)10
CAN(#)1
Sigma-delta滤波器8
PWM(Ch)16
ADC通道数量16
SPI1
温度范围(°C)-40to125,-40to85
等级产品样本
通信接口CAN,SPI,UART