描述The Texas Instruments MSP430 family of ultralow-power microcontrollers consist of several devices featuring different sets of peripherals targeted for various applications. The architecture, combined with five low power modes is optimized to achieve extended battery life in portable measurement applications. The device features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that attribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows wake-up from low-power modes to active mode in less than 6 µs. The MSP430x13x and the MSP430x14x(1) series are microcontroller configurations with two built-in 16-bit timers, a fast 12-bit A/D converter (not implemented on the MSP430F14x1 devices), one or two universal serial synchronous/asynchronous communication interfaces (USART), and 48 I/O pins. Typical applications include sensor systems that capture analog signals, convert them to digital values, and process and transmit the data to a host system. The timers make the configurations ideal for industrial control applications such as ripple counters, digital motor control, EE-meters, hand-held meters, etc. The hardware multiplier enhances the performance and offers a broad code and hardware-compatible family solution.特性Low Supply-Voltage Range, 1.8 V . . . 3.6 V Ultralow-Power Consumption: Active Mode: 280 µA at 1 MHz, 2.2V Standby Mode: 1.6 µA Off Mode (RAM Retention): 0.1 µA Five Power-Saving Modes Wake-Up From Standby Mode in less thatn 6 µs 16-Bit RISC Architecture, 125-ns Instruction Cycle Time 12-Bit A/D Converter With Internal Reference, Sample-and-Hold and Autoscan Feature 16-Bit Timer_B With Seven Capture/Compare-With-Shadow Registers 16-Bit Timer_A With Three Capture/Compare Registers On-Chip Comparator Serial Onboard Programming, No External Programming Voltage Needed Programmable Code Protection by Security Fuse Serial Communication Interface (USART), Functions as Asynchronous UART or Synchronous SPI Interface Two USARTs (USART0, USART1) — MSP430x14x(1) Devices One USART (USART0) — MSP430x13x Devices Family Members Include: MSP430F133:    8KB+256B Flash Memory, 256B RAM MSP430F135:    16KB+256B Flash Memory, 512B RAM MSP430F147, MSP430F1471:    32KB+256B Flash Memory, 1KB RAM MSP430F148, MSP430F1481:    48KB+256B Flash Memory, 2KB RAM MSP430F149, MSP430F1491:    60KB+256B Flash Memory, 2KB RAM Available in 64-Pin Quad Flat Pack (QFP) and 64-pin QFN For Complete Module Descriptions, See the MSP430x1xx Family User’s Guide, Literature Number SLAU049 The MSP430F14x1 devices are identical to the MSP430F14x devices with the exception that the ADC12 module is not implemented.