描述The TI MSP430 family of ultra-low-power microcontrollers consists of several devices featuring peripheral sets targeted for a variety of applications. The architecture, combined with extensive low-power modes, is optimized to achieve extended battery life in portable measurement applications. The microcontroller features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that contribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows the devices to wake up from low-power modes to active mode in 3.5 µs (typical). The MSP430F5529, MSP430F5527, MSP430F5525, and MSP430F5521 microcontrollers have integrated USB and PHY supporting USB 2.0, four 16-bit timers, a high-performance 12-bit analog-to-digital converter (ADC), two universal serial communication interfaces (USCI), a hardware multiplier, DMA, a real-time clock (RTC) module with alarm capabilities, and 63 I/O pins. The MSP430F5528, MSP430F5526, MSP430F5524, and MSP430F5522 microcontrollers include all of these peripherals but have 47 I/O pins. The MSP430F5519, MSP430F5517, and MSP430F5515 microcontrollers have integrated USB and PHY supporting USB 2.0, four 16-bit timers, two universal serial communication interfaces (USCI), a hardware multiplier, DMA, an RTC module with alarm capabilities, and 63 I/O pins. The MSP430F5514 and MSP430FF5513 microcontrollers include all of these peripherals but have 47 I/O pins. Typical applications include analog and digital sensor systems, data loggers, and others that require connectivity to various USB hosts.特性Low Supply Voltage Range: 3.6 V Down to 1.8 V Ultra-Low Power Consumption Active Mode (AM): All System Clocks Active: 290 µA/MHz at 8 MHz, 3.0 V, Flash Program Execution (Typical) 150 µA/MHz at 8 MHz, 3.0 V, RAM Program Execution (Typical) Standby Mode (LPM3): Real-Time Clock (RTC) With Crystal, Watchdog, and Supply Supervisor Operational, Full RAM Retention, Fast Wake up: 1.9 µA at 2.2 V, 2.1 µA at 3.0 V (Typical) Low-Power Oscillator (VLO), General-Purpose Counter, Watchdog, and Supply Supervisor Operational, Full RAM Retention, Fast Wake up: 1.4 µA at 3.0 V (Typical) Off Mode (LPM4): Full RAM Retention, Supply Supervisor Operational, Fast Wake up: 1.1 µA at 3.0 V (Typical) Shutdown Mode (LPM4.5): 0.18 µA at 3.0 V (Typical) Wake up From Standby Mode in 3.5 µs (Typical) 16-Bit RISC Architecture, Extended Memory, up to 25-MHz System Clock Flexible Power Management System Fully Integrated LDO With Programmable Regulated Core Supply Voltage Supply Voltage Supervision, Monitoring, and Brownout Unified Clock System FLL Control Loop for Frequency Stabilization Low-Power Low-Frequency Internal Clock Source (VLO) Low-Frequency Trimmed Internal Reference Source (REFO) 32-kHz Watch Crystals (XT1) High-Frequency Crystals up to 32 MHz (XT2) 16-Bit Timer TA0, Timer_A With Five Capture/Compare Registers 16-Bit Timer TA1, Timer_A With Three Capture/Compare Registers 16-Bit Timer TA2, Timer_A With Three Capture/Compare Registers 16-Bit Timer TB0, Timer_B With Seven Capture/Compare Shadow Registers Two Universal Serial Communication Interfaces USCI_A0 and USCI_A1 Each Support: Enhanced UART Supports Automatic Baud-Rate Detection IrDA Encoder and Decoder Synchronous SPI USCI_B0 and USCI_B1 Each Support: I2C Synchronous SPI Full-Speed Universal Serial Bus (USB) Integrated USB-PHY Integrated 3.3-V and 1.8-V USB Power System Integrated USB-PLL Eight Input and Eight Output Endpoints 12-Bit Analog-to-Digital Converter (ADC) (MSP430F552x Only) With Internal Reference, Sample-and-Hold, and Autoscan Feature Comparator Hardware Multiplier Supports 32-Bit Operations Serial Onboard Programming, No External Programming Voltage Needed Three-Channel Internal DMA Basic Timer With RTC Feature