16-Bit Ultra-Low-Power Microcontroller, 256KB Flash, 16KB RAM, 12 Bit ADC, 2 USCIs, 32-bit HW Multi

16-Bit Ultra-Low-Power Microcontroller, 256KB Flash, 16KB RAM, 12 Bit ADC, 2 USCIs, 32-bit HW Multi - MSP430F5437A


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

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Parametrics Compare all products in Other MSP430 MCUs

Non-volatile Memory (KB)
ADC: Channels (#)
GPIO Pins (#)
Comparator Channels (#)
Package Group
Approx. Price (US$)
MSP430F5437A MSP430F5418A MSP430F5419A MSP430F5438A
256    128    128    256   
16    16    16    16   
12-bit SAR    12-bit SAR    12-bit SAR    12-bit SAR   
14    14    14    14   
67    67    87    87   
2    2    4    4   
4    4    8    8   
2    2    4    4   
0    0    0    0   
3.20 | 1ku    2.40 | 1ku    2.50 | 1ku    3.25 | 1ku   

WEBENCH® Designer MSP430F5437A

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