The Texas Instruments MSP430 family of ultra-low-power microcontrollers consists of several devices 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 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 MSP430F665x and MSP430F565x series are microcontroller configurations with four 16-bit timers, a high-performance 12-bit analog-to-digital converter (ADC) , three universal serial communication interfaces (USCIs), a hardware multiplier, DMA, a real-time clock (RTC) module with alarm capabilities, a comparator, USB 2.0, and up to 74 I/O pins.
The MSP430F645x and MSP430F535x series are microcontroller configurations with an integrated 3.3-V LDO, four 16-bit timers, a high-performance 12-bit ADC, three USCIs, a hardware multiplier, DMA, an RTC module with alarm capabilities, a comparator, and up to 74 I/O pins.
Typical applications for these devices include analog and digital sensor systems, digital motor control, remote controls, thermostats, digital timers, and hand-held meters.
Low Supply Voltage Range: 3.6 V Down to 1.8 V
Active Mode (AM):
All System Clocks Active:
295 µA/MHz at 8 MHz, 3.0 V, Flash Program Execution (Typical)
Standby Mode (LPM3):
Watchdog With Crystal, and Supply Supervisor Operational, Full RAM Retention, Fast Wake-Up:
2.0 µA at 2.2 V, 2.2 µA at 3.0 V (Typical)
Shutdown, RTC Mode (LPM3.5):
Shutdown Mode, Active Real-Time Clock (RTC) With Crystal:
1.1 µA at 3.0 V (Typical)
Shutdown Mode (LPM4.5):
0.45 µA at 3.0 V (Typical)
Wake Up From Standby Mode in 3 µs (Typical)
16-Bit RISC Architecture, Extended Memory, up to 20-MHz System Clock
Flexible Power Management System
Fully Integrated LDO With Programmable Regulated Core Supply Voltage
Supply Voltage Supervision, Monitoring, and Brownout