描述 Description

The Texas Instruments MSP430? family of ultra-low-power microcontrollers consists 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 contribute 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 MSP430FG47x is a microcontroller configuration with two 16-bit timers, a basic timer with a real-time clock, a high-performance 16-bit sigma-delta ADC, dual 12-bit DACs, two configurable operational amplifiers, two universal serial communication interface, 48 I/O pins, and a liquid crystal display driver.

For complete module descriptions, see the MSP430x4xx Family User’s Guide.

特性 Features

? Low supply-voltage range: 1.8 V to 3.6?V
? Ultra-low power consumption
? Active mode: 262 μA at 1 MHz, 2.2 V
? Standby mode: 1.1 μA
? Off mode (RAM retention): 0.1 μA

? Five power-saving modes
? Wakeup from standby mode in less than 6?μs
? 16-bit RISC architecture, extended memory, 125?ns instruction cycle time
? 16-bit sigma-delta analog-to-digital converter (ADC) with internal reference and five differential analog inputs
? Dual 12-bit digital-to-analog converters (DACs)
? Dual configurable operational amplifiers
? Dual configurable operational amplifiers
? 16-bit Timer_A with three capture/compare registers
? 16-bit Timer_B with seven capture/compare-with-shadow registers
? Two universal serial communication interfaces (USCIs)
? USCI_A0
? Enhanced UART supports automatic baud-rate detection
? IrDA encoder and decoder
? Synchronous SPI

? USCI_B0
? I2C
? Synchronous SPI


? Integrated LCD Driver With Contrast Control for Up to 128 Segments
? Brownout detector
? Basic timer with real-time clock (RTC) feature
? Supply Voltage Supervisor/Monitor With Programmable Level Detection
? On-Chip Comparator
? Serial onboard programming, programmable code protection by security fuse
? Bootloader
? Device Comparison summarizes the available family members
? MSP430FG477: 32KB?+?256?bytes?of?flash, 2KB?of?RAM
? MSP430FG478: 48KB?+?256?bytes?of?flash, 2KB?of?RAM
? MSP430FG479: 60KB?+?256?bytes?of?flash, 2KB?of?RAM

? Available in 113-ball MicroStar Junior? BGA (ZQW), 113-ball nFBGA (ZCA), and 80-pin QFP (PN) packages (see Device Comparison)