The Texas Instruments MSP430 family of ultralow-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 5 µs.
●The MSP430F543x and MSP430F541x series are microcontroller configurations with three 16-bit timers, a high-performance 12-bit analog-to-digital converter (ADC), up to four universal serial communication interfaces (USCIs), a hardware multiplier, DMA, a real-time clock (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: 2.2 V to 3.6 V
● Ultralow Power Consumption
● Active Mode (AM): All System Clocks Active
● 312 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: 2.6 µA at 3.0 V (Typical)
● Low-Power Oscillator (VLO), General-Purpose Counter, Watchdog, and Supply Supervisor Operational, Full RAM Retention, Fast Wakeup: 1.8 µA at 3.0 V (Typical)
● Off Mode (LPM4): Full RAM Retention, Supply Supervisor Operational, Fast Wakeup: 1.69 µA at 3.0 V (Typical)
● Wakeup From Standby Mode in Less Than 5 µs
● 16-Bit RISC Architecture
● Extended Memory
● Up to 18-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 Supporting 32-Bit Operations
● Serial Onboard Programming, No External Programming Voltage Needed
● Three-Channel Internal DMA
● Basic Timer With RTC Feature
● For Complete Module Descriptions, See the MSP430x5xx and MSP430x6xx Family User"s Guide (SLAU208)
