Features

• Low Supply-Voltage Range
  • 2.2 V to 3.6 V
    MSP430F543x, MSP430F541x
  • 1.8 V to 3.6 V
    MSP430F543xA, MSP430F541xA
• Ultralow Power Consumption
  • Active Mode (AM): 165 µA/MHz
  • Standby Mode (LPM3 RTC Mode): 2.6 µA
  • Off Mode (LPM4 RAM Retention): 1.6 µA
  • Shutdown Mode (LPM5): 0.1 µA
• Wake-Up From Standby Mode in Less Than 5 µs
• 16-Bit RISC Architecture
  • Extended Memory
  • Up to 18-MHz System Clock
    MSP430F543x, MSP430F541x
  • Up to 25-MHz System Clock
    MSP430F543xA, MSP430F541xA
• 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 25 MHz
• 16-Bit Timer0_A5 With Five Capture/Compare Registers
• 16-Bit Timer1_A3 With Three Capture/Compare Registers
• 16-Bit Timer_B7 With Seven Capture/Compare Shadow Registers
• Up to Four Universal Serial Communication Interfaces
  • Enhanced UART Supporting Auto-Baudrate Detection
  • IrDA Encoder and Decoder
  • Synchronous SPI
  • I2C™
• 12-Bit Analog-to-Digital (A/D) Converter
  • Internal Reference
  • Sample-and-Hold
  • Autoscan Feature
  • 12 External Channels, 4 Internal Channels
• Hardware Multiplier Supporting 32-Bit Operations
• Serial Onboard Programming, No External Programming Voltage Needed
• Three Channel Internal DMA
• Basic Timer With Real Time Clock Feature
• Family Members Include:
  • MSP430F5438, MSP430F5438A(1)
    • 256KB+512B Flash Memory
    • 16KB RAM
    • Four Universal Serial Communication Interfaces
  • MSP430F5436(1), MSP430F5436A(1)
    • 192KB+512B Flash Memory
    • 16KB RAM
    • Four Universal Serial Communication Interfaces
  • MSP430F5419(1), MSP430F5419A(1)
    • 128KB+512B Flash Memory
    • 16KB RAM
    • Four Universal Serial Communication Interfaces
  • MSP430F5437, MSP430F5437A(1)
    • 256KB+512B Flash Memory
    • 16KB RAM
    • Two Universal Serial Communication Interfaces
  • MSP430F5435(1), MSP430F5435A(1)
    • 192KB+512B Flash Memory
    • 16KB RAM
    • Two Universal Serial Communication Interfaces
  • MSP430F5418(1), MSP430F5418A(1)
    • 128KB+512B Flash Memory
    • 16KB RAM
    • Two Universal Serial Communication Interfaces
• For Complete Module Descriptions, See the MSP430x5xx Family User´s Guide (SLAU208)

Description

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

The MSP430F543x(A) and MSP430F541x(A) series are microcontroller configurations with three 16-bit timers, a high performance 12-bit analog-to-digital (A/D) converter, up to four universal serial communication interfaces (USCI), hardware multiplier, DMA, real time clock 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, hand-held meters, etc.