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 extensive 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 the device to wake up from low-power modes to active mode in 3 µs (typical).
The MSP430F673xA and MSP430F672xA devices are microcontrollers with three high-performance 24-bit sigma-delta ADCs, a 10-bit ADC, four eUSCIs (three eUSCI_A modules and one eUSCI_B module), four 16-bit timers, a hardware multiplier, a DMA module, an RTC module with alarm capabilities, an LCD driver with integrated contrast control, an auxiliary supply system, and up to 72 I/O pins in the 100‑pin devices and 52 I/O pins in the 80‑pin devices.
Low Supply-Voltage Range: 3.6 V Down to 1.8 V
Ultra-Low Power Consumption
Active Mode (AM):
All System Clocks Active
265 µA/MHz at 8 MHz, 3.0 V, Flash Program Execution (Typical)
140 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 Wakeup:
1.7 µA at 2.2 V, 2.5 µA at 3.0 V (Typical)
Off Mode (LPM4):
Full RAM Retention, Supply Supervisor Operational, Fast Wakeup:
1.6 µA at 3.0 V (Typical)
Shutdown RTC Mode (LPM3.5):
Shutdown Mode, Active RTC With Crystal:
1.24 µA at 3.0 V (Typical)
Shutdown Mode (LPM4.5):
0.78 µA at 3.0 V (Typical)
Wakeup From Standby Mode in 3 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
System Operation From up to Two Auxiliary Power Supplies
