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MSP430F5437A

ACTIVE

25-MHz MCU with 256-KB Flash, 16-KB SRAM, 12-bit ADC, DMA, UART/SPI/I2C, timer and HW multiplier

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Data sheet
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MSP430F5437A

ACTIVE
Data sheet Order now

Product details

Frequency (MHz) 25 Nonvolatile memory (kByte) 256 RAM (kByte) 16 ADC type 12-bit SAR Number of ADC channels 14 Number of GPIOs 67 Features Real-time clock UART 2 USB No Number of I2Cs 2 SPI 4 Number of comparator channels 0 Timers - 16-bit 3 Bootloader (BSL) UART Operating temperature range (°C) -40 to 85 Rating Catalog
Frequency (MHz) 25 Nonvolatile memory (kByte) 256 RAM (kByte) 16 ADC type 12-bit SAR Number of ADC channels 14 Number of GPIOs 67 Features Real-time clock UART 2 USB No Number of I2Cs 2 SPI 4 Number of comparator channels 0 Timers - 16-bit 3 Bootloader (BSL) UART Operating temperature range (°C) -40 to 85 Rating Catalog
LQFP (PN) 80 196 mm² 14 x 14
  • 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 (USCIs)
    • 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
  • 3-channel internal DMA
  • Basic timer with RTC feature
  • Device Comparison summarizes the available family members
  • 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 (USCIs)
    • 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
  • 3-channel internal DMA
  • Basic timer with RTC feature
  • Device Comparison summarizes the available family members

The TI MSP 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 USCIs, a hardware multiplier, DMA, an RTC module with alarm capabilities, and up to 87 I/O pins.

For complete module descriptions, see the MSP430F5xx and MSP430F6xx Family User’s Guide.

The TI MSP 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 USCIs, a hardware multiplier, DMA, an RTC module with alarm capabilities, and up to 87 I/O pins.

For complete module descriptions, see the MSP430F5xx and MSP430F6xx Family User’s Guide.
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Technical documentation

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Type Title Date
* Data sheet MSP430F543xA, MSP430F541xA Mixed-Signal Microcontrollers datasheet (Rev. H) PDF | HTML 10 May 2021
* Errata MSP430F5437A Microcontroller Errata (Rev. AC) PDF | HTML 08 Oct 2012
* User guide MSP430x5xx and MSP430x6xx Family User's Guide (Rev. Q) 17 Aug 2018
Application note Design Considerations When Using the MSP430 Graphics Library (Rev. A) PDF | HTML 09 Aug 2023
Application note Li-Ion Battery Charger Solution Using an MSP430™ MCU (Rev. B) PDF | HTML 01 Apr 2022
Application note ESD Diode Current Specification (Rev. B) PDF | HTML 23 Aug 2021
Application note MSP430 System-Level ESD Considerations (Rev. B) PDF | HTML 14 Jul 2021
User guide MSP430 MCUs Development Guide Book (Rev. A) PDF | HTML 13 May 2021
User guide SYS/BIOS (TI-RTOS Kernel) User's Guide (Rev. V) 01 Jun 2020
Application note MSP430 System ESD Troubleshooting Guide PDF | HTML 13 Dec 2019
Application note Migrating From MSP430F541x and MSP430F543x to MSP430F541xA and MSP430F543xA (Rev. C) PDF | HTML 29 Mar 2019
Application note Programming a Flash-Based MSP430 MCU Using the JTAG Interface (Rev. H) 15 Mar 2019
Application note Interfacing the 3-V MSP430 MCU to 5-V Circuits (Rev. A) PDF | HTML 03 Oct 2018
Application note MSP430F5xx Overview and Comparison to MSP430F2xx and MSP430F4xx (Rev. A) PDF | HTML 26 Sep 2018
Application note MSP430 Flash Memory Characteristics (Rev. B) PDF | HTML 24 Aug 2018
Application note Understanding MSP430 Flash Data Retention (Rev. A) PDF | HTML 24 Aug 2018
Application note Mixing C and Assembler With MSP430™ MCUs (Rev. A) PDF | HTML 07 Aug 2018
Application note Using the TPS3619 With MSP430 Microcontrollers (Rev. B) PDF | HTML 06 Aug 2018
Application note MSP430 LFXT1 Oscillator Accuracy (Rev. A) 03 Aug 2018
Application note Efficient Multiplication and Division Using MSP430 MCUs (Rev. A) 18 Jul 2018
Application note CRC Implementation with MSP430 MCUs (Rev. A) 21 Jun 2018
Application note Implementing An Ultra-Low-Power Keypad Interface With MSP430 MCUs (Rev. A) 22 May 2018
Application note Random Number Generation Using MSP430™ MCUs (Rev. A) 16 May 2018
Application note Wave Digital Filtering Using an MSP430 MCU (Rev. A) 16 May 2018
Application note Software Coding Techniques for MSP430™ MCUs (Rev. B) 14 Mar 2018
Application note MSP430 32-kHz Crystal Oscillators (Rev. D) PDF | HTML 18 Jul 2017
White paper Capacitive Touch and MSP Microcontrollers (Rev. A) 27 Apr 2017
Application note Migrating from the MSP430F5xx,F6xx Family to the MSP430FR58xx/FR59xx/68xx Family (Rev. D) 03 Nov 2016
Application note Advanced Debugging Using the Enhanced Emulation Module (EEM) With CCS v6 (Rev. F) 06 Sep 2016
Application note General Oversampling of MSP ADCs for Higher Resolution (Rev. A) PDF | HTML 01 Apr 2016
Functional safety information Safety Manual for MSP430G2xx, F5xx, and FR57xx in IEC 60730 Safety Applications (Rev. A) 12 Jan 2016
Application note MSP Code Protection Features PDF | HTML 07 Dec 2015
Application note Using the USCI I2C Master (Rev. A) 11 Mar 2015
Application note Using the MSP430 Timer_D Module in Hi-Resolution Mode 02 Oct 2013
Application note Design Considerations When Using the MSP430 Graphics Library 05 Oct 2012
White paper Power Management Solutions for Ultra-Low-Power 16-Bit MSP430 MCUs (Rev. D) 28 Mar 2012
Application note Powering the MSP430 from a High Voltage Input using the TPS62122 (Rev. C) 12 Jan 2012
Application note 1.8V – 5.5V Input, High-Efficiency DCDC Converter Reference Design for MSP430 (Rev. B) 14 Jun 2010
Application note Tiny DCDC Converter Reference Design (Rev. A) 14 Jun 2010
Application note Debugging MSP430 LPM4.5 18 Dec 2009

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