Texas Instruments MSP430FG662x/642x Mixed Signal Microcontrollers

Texas Instruments MSP430FG662x/642x Mixed Signal Microcontrollers are a family of ultra-low-power microcontrollers that feature 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 devices feature 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 device to wake up from low-power modes to active mode in 3µs. Texas Instruments MSP430FG662x/642x Mixed Signal Microcontrollers are ideal for analog and digital sensor systems, hand-held meters, and hand-held industrial testers.

Features

  • 1.8V to 3.6V supply voltage range
  • Ultra-low power consumption
    • Active mode (AM)
    • All system clocks active
      • 250µA/MHz at 8MHz, 3.0V, flash program execution (typical)
    • Standby mode (LPM3)
      • Watchdog with crystal, and supply supervisor operational, full RAM retention, fast wakeup
      • 3.2µA at 2.2V, 3.4µA at 3.0V (typical)
    • Shutdown RTC mode (LPM3.5)
      • Shutdown mode, active real-time clock with crystal
        • 0.9µA at 3.0V (typical)
    • Shutdown mode (LPM4.5)
      • 0.2µA at 3.0V (typical)
  • Wake up from standby mode in 3µs (typical)
  • 16-bit RISC architecture, extended memory, up to 20MHz system clock
  • Flexible power management system
    • Fully integrated LDO with a 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)
    • 32kHz crystals (XT1)
    • High-frequency crystals up to 32MHz (XT2)
  • Four 16-bit timers with 3, 5, or 7 capture/compare registers
  • Two universal serial communication interfaces
    • USCI_A0 and USCI_A1 each support
      • Enhanced UART with 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 3.3V and 1.8V USB power system
    • Integrated USB-PLL
    • Eight input and eight output end-points
  • Continuous-time sigma-delta 16-bit analog-to-digital converter (ADC) with internal reference with 10 external analog inputs, 6 single-ended and 4 selectable as differential or single-ended
  • Dual low-power operational amplifiers
  • Quad low-impedance ground switches
  • Dual 12-bit digital-to-analog converters (DACs) with synchronization
  • Voltage comparator
  • Integrated LCD driver with contrast control for up to 160 segments
  • Hardware multiplier supports 32-bit operations
  • Serial onboard programming, no external programming voltage needed
  • Six-channel internal DMA
  • Real-time clock (RTC) module with a supply voltage backup switch

Applications

  • Analog sensor systems
  • Medical diagnostic meters
  • Digital sensor systems
  • Hand-Held industrial testers
  • Hand-Held meters
  • Measurement equipment

Functional Block Diagram - MSP430FG6626 & MSP430FG6625

Block Diagram - Texas Instruments MSP430FG662x/642x Mixed Signal Microcontrollers

Functional Block Diagram - MSP430FG6426 & MSP430FG6425

Block Diagram - Texas Instruments MSP430FG662x/642x Mixed Signal Microcontrollers
Published: 2015-07-31 | Updated: 2025-04-16