Texas Instruments MSP430F673x / MSP430F672x Mixed Signal MCUs

Texas Instruments MSP430F673x / MSP430F672x Mixed-Signal Microcontrollers are MSP430 MCUs with three high-performance 24-bit sigma-delta A/D converters, a 10-bit analog-to-digital (A/D) converter, four enhanced universal serial communication interfaces (three eUSCI_A and one eUSCI_B), four 16-bit timers, a hardware multiplier, DMA, and real-time clock module with alarm capabilities. These MCUs include an MSP430 LCD driver with integrated contrast control, an auxiliary supply system, and up to 72 I/O pins in 100-pin devices and 52 I/O pins in 80-pin devices.

These Texas Instruments 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 wake-up from low-power modes to active mode in 3μs (typical). Typical applications for MSP430F673x / MSP430F672x MCUs are 2-wire and 3-wire single-phase metering, including tamper-resistant meter implementations.

Features

  • Low Supply Voltage Range: 1.8V to 3.6V
  • Ultra-Low Power Consumption
    • Active Mode (AM)
      • All System Clocks Active
      • 265µA/MHz at 8MHz, 3.0V, Flash Program Execution (Typical)
      • 140µA/MHz at 8MHz, 3.0V, RAM Program Execution (Typical)
    • Standby Mode (LPM3)
      • Real-Time Clock With Crystal, Watchdog, and Supply Supervisor Operational, Full RAM Retention, Fast Wake-Up: 1.4µA at 2.2V, 2.5µA at 3.0V (Typical)
    • Off Mode (LPM4)
      • Full RAM Retention, Supply Supervisor Operational, Fast Wake-Up: 1.6µA at 3.0V (Typical)
    • Shutdown RTC Mode (LPM3.5)
      • Shutdown mode, Active Real-Time Clock with Crystal:1.24µA at 3.0V (Typical)
    • Shutdown Mode (LPM4.5)
      • 0.78µA at 3.0V (Typical)
  • Wake-Up From Standby Mode in 3µs (Typical)
  • 16-Bit RISC Architecture, Extended Memory, up to 25MHz System Clock
  • Flexible Power Management System
    • Fully Integrated LDO With Programmable Regulated Core Supply Voltage
    • Supply Voltage Supervision, Monitoring, and Brownout
    • System Operation From up to Two Auxiliary Power Supplies
    • Unified Clock System

Applications

  • 2- and 3-Wire Single-Phase Metering

Videos

Published: 2012-04-02 | Updated: 2025-04-16