MSP430F5438A-ET

ACTIVE

Extended temperature 25-MHz MCU with 256-KB flash, 16-KB SRAM, 12-bit ADC, DMA, UART/SPI/I2C, timer

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Extended temperature 25-MHz MCU with 256-KB flash, 16-KB SRAM, 12-bit ADC, DMA, UART/SPI/I2C, timer

MSP430F5438A-ET

ACTIVE

Product details

Parameters

Non-volatile memory (kB) 256 RAM (KB) 16 ADC 12-bit SAR GPIO pins (#) 87 Features Real-time clock UART 4 Number of I2Cs 4 SPI 8 Comparator channels (#) 0 open-in-new Find other MSP430 microcontrollers

Package | Pins | Size

NFBGA (GCA) 113 NFBGA (ZCA) 113 49 mm² 7 x 7 open-in-new Find other MSP430 microcontrollers

Features

  • Extended temperature version -ET uses silicon revision H
  • 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 automatic baud-rate detection
      • IrDA encoder and decoder
      • Synchronous SPI
    • USCI_B0, USCI_B1, USCI_B2, and USCI_B3 each supporting
      • 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
  • 3-channel internal DMA
  • Basic timer with real-time clock feature
  • 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)
  • Available SnAgCu (ZCA) or SnPb (GCA) ball material

(1)Use of crystals is not ensured above 85°C for both 32-kHz and high-frequency crystals.

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Description

The MSP430F5438A-ET 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-ET is a microcontroller configuration with three 16-bit timers, a high-performance 12-bit analog-to-digital converter (ADC), up to 4 universal serial communication interfaces (USCIs), a hardware multiplier, a DMA, a real-time clock (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 .

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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MSP430F5438A ACTIVE 25-MHz MCU with 256-KB flash, 16-KB SRAM, 12-bit ADC, DMA, UART/SPI/I2C, timer, HW multiplier Industrial temperature option is available.

Technical documentation

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Type Title Date
* Data sheet MSP430F5438-ET Mixed-Signal Microcontroller datasheet (Rev. A) Feb. 25, 2021
User guide MSP430 MCUs Development Guide Book (Rev. A) May 13, 2021
Technical article A world of possibilities: 5 ways to use MSP430™︎ MCUs in your design Apr. 29, 2021
Application note MSP430 System ESD Troubleshooting Guide Dec. 13, 2019

Design & development

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Hardware development

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Features
  • Quickly and reliably program Flash or FRAM-based MSP devices via RS-232 or USB interface
  • Several programming modes:
    • Interactive Mode – Programming while connected to PC using the MSP GANG Programmer GUI
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Software development

SOFTWARE DEVELOPMENT KIT (SDK) Download
MSP430Ware for MSP Microcontrollers
MSPWARE MSP430Ware is a collection of resources that help users to effectively create and build MSP430 code. These resources support ALL MSP430 microcontrollers (MCUs). As one user mentioned, “It’s essentially everything developers need to become MSP430 microcontroller experts!”

This complete collection of (...)

Features
  • Collection of MSP design resources
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  • Auto-updates through the web
  • Sleek & intuitive GUI for browsing content
  • Features the MSP Driver Library
  • Automatic filtering of content using a unique 2-pane view
DRIVER OR LIBRARY Download
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Code Composer Studio™ Integrated Development Environment for MSP Microcontrollers
CCSTUDIO-MSP

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IAR Embedded Workbench
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Design tools & simulation

DESIGN TOOL Download
MSP Third party search tool
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Features
  • Supports many TI MSP devices including general purpose and advanced sensing MCUs
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CAD/CAE symbols

Package Pins Download
NFBGA (GCA) 113 View options
NFBGA (ZCA) 113 View options

Ordering & quality

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Support & training

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