MSP430F5438A-EP

ACTIVE

Product details

CPU MSP430 Frequency (MHz) 25 Flash memory (kByte) 256 RAM (kByte) 16 ADC type 12-bit SAR Features Brown out reset, IrDA, Real-time clock, Temp sensor, Watchdog timer UART 4 Number of ADC channels 14 SPI 8 USB No Hardware accelerators 0 Operating temperature range (°C) -55 to 125 Rating HiRel Enhanced Product Communication interface I2C, SPI, UART Operating system BareMetal (No OS), TI RTOS Nonvolatile memory (kByte) 256 Number of GPIOs 87 Number of I2Cs 4 Security Secure debug
CPU MSP430 Frequency (MHz) 25 Flash memory (kByte) 256 RAM (kByte) 16 ADC type 12-bit SAR Features Brown out reset, IrDA, Real-time clock, Temp sensor, Watchdog timer UART 4 Number of ADC channels 14 SPI 8 USB No Hardware accelerators 0 Operating temperature range (°C) -55 to 125 Rating HiRel Enhanced Product Communication interface I2C, SPI, UART Operating system BareMetal (No OS), TI RTOS Nonvolatile memory (kByte) 256 Number of GPIOs 87 Number of I2Cs 4 Security Secure debug
LQFP (PZ) 100 256 mm² 16 x 16
  • Low Supply Voltage Range:
    3.6 V Down to 1.8 V
  • Ultralow 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 With Crystal, Watchdog,
      and Supply Supervisor Operational, Full RAM
      Retention, Fast Wake-Up:
      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 Wake-Up:
      1.2 µA at 3.0 V (Typical)
    • Off Mode (LPM4):
      Full RAM Retention, Supply Supervisor Operational,
      Fast Wake-Up: 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(1)
  • 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 Supporting
      • Enhanced UART supporting Auto-Baudrate Detection
      • IrDA Encoder and Decoder
      • Synchronous SPI
    • USCI_B0, USCI_B1, USCI_B2, and USCI_B3 Each Supporting
      • I2CTM
      • Synchronous SPI
  • 12-Bit Analog-to-Digital (A/D) Converter
    • 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 Real-Time Clock Feature
  • For Complete Module Descriptions, See the (SLAU208)
  • Wide Operational Range: –40°C to 125°C (Q Temp),
    –55°C to 125°C (M Temp) (Some Noted Parameters
    Specified for –40°C to 85°C Only)

Supports Defense, Aerospace, and Medical Applications

  • Controlled Baseline
  • One Assembly and Test Site
  • One Fabrication Site
  • Available in Extended (–55°C to 125°C) Temperature Range
  • Extended Product Life Cycle
  • Extended Product-Change Notification
  • Product Traceability

(1) Use of crystals is not ensured above 85°C for both 32-kHz and high frequency crystals.
All trademarks are the property of their respective owners.

  • Low Supply Voltage Range:
    3.6 V Down to 1.8 V
  • Ultralow 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 With Crystal, Watchdog,
      and Supply Supervisor Operational, Full RAM
      Retention, Fast Wake-Up:
      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 Wake-Up:
      1.2 µA at 3.0 V (Typical)
    • Off Mode (LPM4):
      Full RAM Retention, Supply Supervisor Operational,
      Fast Wake-Up: 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(1)
  • 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 Supporting
      • Enhanced UART supporting Auto-Baudrate Detection
      • IrDA Encoder and Decoder
      • Synchronous SPI
    • USCI_B0, USCI_B1, USCI_B2, and USCI_B3 Each Supporting
      • I2CTM
      • Synchronous SPI
  • 12-Bit Analog-to-Digital (A/D) Converter
    • 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 Real-Time Clock Feature
  • For Complete Module Descriptions, See the (SLAU208)
  • Wide Operational Range: –40°C to 125°C (Q Temp),
    –55°C to 125°C (M Temp) (Some Noted Parameters
    Specified for –40°C to 85°C Only)

Supports Defense, Aerospace, and Medical Applications

  • Controlled Baseline
  • One Assembly and Test Site
  • One Fabrication Site
  • Available in Extended (–55°C to 125°C) Temperature Range
  • Extended Product Life Cycle
  • Extended Product-Change Notification
  • Product Traceability

(1) Use of crystals is not ensured above 85°C for both 32-kHz and high frequency crystals.
All trademarks are the property of their respective owners.

The MSP430F5438A-EP is an ultralow-power microcontroller. 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 wake-up from low-power modes to active mode in 3.5 µs (typical).

The MSP430F5438A-EP is a microcontroller configuration 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, and hand-held meters.

The MSP430F5438A-EP is an ultralow-power microcontroller. 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 wake-up from low-power modes to active mode in 3.5 µs (typical).

The MSP430F5438A-EP is a microcontroller configuration 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, and hand-held meters.

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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet MSP430F5438A-EP Mixed Signal Microcontroller datasheet (Rev. A) 22 Jan 2014
* Errata MSP430F5438A Microcontroller Errata (Rev. AC) PDF | HTML 21 Oct 2021
* VID MSP430F5438A-EP VID V6214608 21 Jun 2016
Application note Migration Guide From MSP430 MCUs to MSPM0 MCUs (Rev. B) PDF | HTML 02 Jun 2025
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
Application note MSP430 System ESD Troubleshooting Guide PDF | HTML 13 Dec 2019
White paper Capacitive Touch and MSP Microcontrollers (Rev. A) 27 Apr 2017
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

Design & development

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MSP-GRLIB MSP Graphics Library

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Operating system (OS)

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Design tool

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LQFP (PZ) 100 Ultra Librarian

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Information included:
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