The TI 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 3.5 µs (typical).
●The MSP430F543xA and MSP430F541xA series are microcontroller configurations with three 16-bit timers, a high-performance 12-bit ADC, up to four universal serial communication interfaces (USCIs), a hardware multiplier, DMA, an RTC module with alarm capabilities, and up to 87 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
●230 µA/MHz at 8 MHz, 3.0 V, Flash Program Execution (Typical)
●110 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, 2.1 µA at 3.0 V (Typical)
●Low-Power Oscillator (VLO), General-Purpose Counter, Watchdog, and Supply Supervisor Operational, Full RAM Retention, Fast Wakeup:
●1.2 µA at 3.0 V (Typical)
● Off Mode (LPM4):
●Full RAM Retention, Supply Supervisor Operational, Fast Wakeup:
●1.2 µA at 3.0 V (Typical)
● Shutdown Mode (LPM4.5):
●0.1 µA at 3.0 V (Typical)
● Wake up From Standby Mode in 3.5 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
● 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 Crystals
● High-Frequency Crystals up to 32 MHz
● 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 TB0, Timer_B With Seven Capture/Compare Shadow Registers
● Up to Four Universal Serial Communication Interfaces
● USCI_A0, USCI_A1, USCI_A2, and USCI_A3 Each Support:
● Enhanced UART Supports Automatic Baud-Rate Detection
● IrDA Encoder and Decoder
● Synchronous SPI
● USCI_B0, USCI_B1, USCI_B2, and USCI_B3 Each Support:
● I2C
● Synchronous SPI
● 12-Bit Analog-to-Digital Converter (ADC)
● Internal Reference
● Sample-and-Hold
● Autoscan Feature
● 14 External Channels, 2 Internal Channels
● Hardware Multiplier Supports 32-Bit Operations
● Serial Onboard Programming, No External Programming Voltage Needed
● Three-Channel Internal DMA
● Basic Timer With RTC Feature
