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 the device to wake up from low-power modes to active mode in less than 5µs.

The MSP430F5310, MSP430F5309, and MSP430F5308 devices are microcontroller configurations with a 3.3-V LDO, four 16-bit timers, a high-performance 10-bit analog-to-digital converter (ADC), two universal serial communication interfaces (USCIs), a hardware multiplier, DMA, a real-time clock (RTC) module with alarm capabilities, and 31 or 47 I/O pins.

The MSP430F5304 device is a configuration with a 3.3-V LDO, four 16-bit timers, a high-performance 10-bit ADC, two USCIs, a hardware multiplier, DMA, an RTC module with alarm capabilities, and 31 I/O pins.

Typical applications for this device 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
• Ultra-Low-Power Consumption
  • Active Mode (AM), All System Clocks Active
    • 195 µA/MHz (Typical) at 8 MHz, 3 V, Flash Program Execution
    • 115 µA/MHz (Typical) at 8 MHz, 3 V, RAM Program Execution
  • Standby Mode (LPM3)
    • Real-Time Clock (RTC) With Crystal, Watchdog, and Supply Supervisor Operational, Full RAM Retention, Fast Wake Up: 1.9 µA (Typical) at 2.2 V, 2.1 µA (Typical) at 3 V
    • Low-Power Oscillator (VLO), General-Purpose Counter, Watchdog, and Supply Supervisor Operational, Full RAM Retention, Fast Wake Up: 1.4 µA (Typical) at 3 V
  • Off Mode (LPM4) Full RAM Retention, Supply Supervisor Operational, Fast Wake Up: 1.1 µA at 3 V (Typical)
  • Shutdown Mode (LPM4.5) 0.18 µA at 3 V (Typical)
• Wake Up From Standby Mode in Less Than 5µs
• 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
• Unified Clock System
  • FLL Control Loop for Frequency Stabilization
  • Low-Power Low-Frequency Internal Clock Source (VLO)
  • Low-Frequency Trimmed Internal Reference Source (REFO)
  • 32-kHz Watch Crystals (XT1)
  • High-Frequency Crystals up to 32 MHz (XT2)
• 16-Bit Timer TA0, Timer_A With Five Capture/Compare Registers
• 16-Bit Timer TA1, Timer_A With Three Capture/Compare Registers
• 16-Bit Timer TA2, Timer_A With Three Capture/Compare Registers
• 16-Bit Timer TB0, Timer_B With Seven Capture/Compare Shadow Registers
• Two Universal Serial Communication Interfaces (USCIs)
  • USCI_A0 and USCI_A1 Each Support:
    • Enhanced UART Supports Auto-Baudrate Detection
    • IrDA Encoder and Decoder
    • Synchronous SPI
  • USCI_B0 and USCI_B1 Each Support:
    • I2C
    • Synchronous SPI
• Integrated 3.3-V Power System
• 10-Bit Analog-to-Digital Converter (ADC) With Window Comparator
• Comparator
• Hardware Multiplier Supports 32-Bit Operations
• Serial Onboard Programming, No External Programming Voltage Needed
• Three-Channel Internal DMA
• Basic Timer With RTC Feature