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Datasheet Texas Instruments MSP430G2231

ManufacturerTexas Instruments

MSP430G2x21, MSP430G2x31 Mixed Signal Microcontroller


  • Download » Datasheet, PDF, 1.5 Mb, Revision: J, 02-07-2013, File uploaded 03-21-2018
    MSP430G2x21, MSP430G2x31 Mixed Signal Microcontroller datasheet
    Docket ↓
    FEATURES 1 Low Supply-Voltage Range: 1.8 V to 3.6 V
    Ultra-Low Power Consumption
    – Active Mode: 220 µA at 1 MHz, 2.2 V
    – Standby Mode: 0.5 µA
    – Off Mode (RAM Retention): 0.1 µA
    Five Power-Saving Modes
    Ultra-Fast Wake-Up From Standby Mode in
    Less Than 1 µs
    16-Bit RISC Architecture, 62.5-ns Instruction
    Cycle Time
    Basic Clock Module Configurations
    – Internal Frequencies up to 16 MHz With
    One Calibrated Frequency
    – Internal Very Low Power Low-Frequency
    (LF) Oscillator
    – 32-kHz Crystal
    – External Digital Clock Source 16-Bit Timer_A With Two Capture/Compare
    Universal Serial Interface (USI) Supporting SPI
    and I2C (See Table 1) ...


Family: MSP430G2121, MSP430G2131, MSP430G2221, MSP430G2231


Lifecycle StatusActive (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)
Manufacture's Sample AvailabilityYesYesNoYesYes


Package QTY259020003000250
Device MarkingMSP430G2231G2231G22312231M430G
Width (mm)6.354.44.444
Length (mm)19.35544
Thickness (mm)3.911.9.9
Pitch (mm)
Max Height (mm)
Mechanical DataDownload »Download »Download »Download »Download »


ADCADC10 - 8chADC10 - 8chADC10 - 8chADC10 - 8chADC10 - 8ch
Active Power, uA/MHz300300300300300
Additional FeaturesWatchdog,Temp Sensor,Brown Out ResetWatchdog,Temp Sensor,Brown Out ResetWatchdog,Temp Sensor,Brown Out ResetWatchdog,Temp Sensor,Brown Out ResetWatchdog,Temp Sensor,Brown Out Reset
Frequency, MHz1616161616
GPIO Pins1010101010
Max VCC3.
Min VCC1.
Non-volatile Memory, KB22222
Operating Temperature Range, C-40 to 85-40 to 85-40 to 85-40 to 85-40 to 85
Package Size: mm2:W x L, PKGSee datasheet (PDIP)14TSSOP: 32 mm2: 6.4 x 5(TSSOP)14TSSOP: 32 mm2: 6.4 x 5(TSSOP)16QFN: 16 mm2: 4 x 4(QFN)16QFN: 16 mm2: 4 x 4(QFN)
RAM, KB0.1250.1250.1250.1250.125
Special I/ON/AN/AN/AN/AN/A
Standby Power, LPM3-uA0.
Timers - 16-bit11111
Wakeup Time, us1.

Eco Plan

Pb FreeYes

Application Notes

  • Download » Application Notes, PDF, 165 Kb, 08-20-2013
    MSP430 Based LED Lantern Floating Buck Topology
    It is always a challenge to drive a high-side mosfet switch using a simple microcontroller to design a buck topology switching regulator system. The main challenge is to generate the gate to source voltage for the mosfet switch that is more than the available input voltage. This limitation can be overcome by using a special topology of switching called "Floating BUCK" and avoid the use of any exte
  • Download » Application Notes, PDF, 144 Kb, Revision: A, 08-02-2012
    Launchpad-Based MSP430 UART BSL Interface (Rev. A)
    This application report describes the implementation of the low-cost LaunchPad™-based MSP430 universal synchronous receiver/transmitter (UART) bootstrap loader (BSL) interface. The goal of the implementation is to deploy the MSP430 Value Line devices that have less than two serial interface modules as the bridge between the BSL Scripter software tool and the MSP430 target device.
  • Download » Application Notes, PDF, 991 Kb, Revision: A, 02-02-2004
    MSP430 Internet Connectivity (Rev. A)
    Computer communication systems and especially the Internet are playing a rapidly, increasingly important role in our everyday environment. But today, this is not only a domain of personal computers or workstations. More and more, it makes its way to smaller network nodes, too. Imagine applications that are able to control hardware via a standard Internet browser, to transmit and visualize the stat
  • Download » Application Notes, PDF, 923 Kb, Revision: A, 10-09-2006
    MSP430 USB Connectivity Using TUSB3410 (Rev. A)
    This application report presents a ready-to-use USB connectivity reference design for MSP430 microcontrollers using the Texas Instruments TUSB3410 USB-to-serial bridge controller. The provided solution enables high-speed data transfers with speeds of up to 921,600 bit/s as well as MSP430 Flash code download through the USB port. The reference design includes MSP430 and PC software, drivers, schema
  • Download » Application Notes, PDF, 45 Kb, Revision: B, 03-14-2008
    Interfacing the MSP430 With MMC/SD Flash Memory Cards (Rev. B)
    This application report and the associated source code files demonstrate the implementation of a serial peripheral interface (SPI) between the MSP430F161x microcontroller and an MMC or SD flash memory card used in SPI mode. The provided information can be used with any MSP430 device with a hardware SPI interface.
  • Download » Application Notes, PDF, 220 Kb, Revision: D, 08-10-2016
    Migrating From MSP430F2xx, MSP430G2xx Families to MSP430FR4xx/FR2xx Family (Rev. D)
    This application report helps to ease the migration from MSP430F2xx flash-based MCUs to the MSP430FR4xx/FR2xx family of FRAM-based MCUs. It discusses programming, system, hardware, core architecture, and peripheral considerations. The intent is to highlight key differences between the two families. For more information on the use of the MSP430FR4xx and MSP430FR2xx devices, see the MSP430FR4xx and
  • Download » Application Notes, PDF, 179 Kb, Revision: E, 11-03-2016
    Migrating from the MSP430F2xx,G2xx Family to the MSP430FR58xx/FR59xx/68xx/69xx (Rev. E)
    This application report enables easy migration from MSP430F2xx flash-based MCUs to the MSP430FR58xx/FR59xx/68xx/69xx family of FRAM-based MCUs. For the migration guide to MSP430FR57xx, see Migrating From the MSP430F2xx Family to the MSP430FR57xx Family. It covers programming, system, and peripheral considerations when migrating firmware. The intent is to highlight key differences between the two f
  • Download » Application Notes, PDF, 808 Kb, Revision: A, 07-25-2007
    QFN/SON PCB Attachment Application Report (Rev. A)
  • Download » Application Notes, PDF, 82 Kb, Revision: A, 10-13-2000
    Interfacing TMS320C5000 DSP to MSP430 Mixed Signal Microcontroller (Rev. A)
    The TMS320C5000™ family of digital signal processors (DSPs) features Host Port Interface Controllers (HPI) and Direct Memory Access Controllers (DMAC) for efficient data movement without any CPU involvement. The HPI enables the DSP to interface to host processors (typically microcontrollers) bidirectionally with minimal or no external interface logic. This application report presents a hardw
  • Download » Application Notes, PDF, 770 Kb, 01-16-2008
    MSP430 Capacitive Single-Touch Sensor Design Guide
    This application report discusses the design of RC-type capacitive single-touch sensors using the MSP430 microcontroller. The MSP430 has some unique features that make it suitable for interfacing with capacitive-touch sensors. The RC-type method does not need special peripherals and can be implemented with all devices in the MSP430 product family. This method is also inherently low power and can
  • Download » Application Notes, PDF, 171 Kb, Revision: A, 04-14-2008
    MSP430 Flash Memory Characteristics (Rev. A)
    Flash memory is a widely used, reliable, and flexible nonvolatile memory to store software code and data in a microcontroller. Failing to handle the flash according to data-sheet specifications may result in unreliable operation of the application. This application report explains the physics behind these specifications and also gives recommendations for correct MSP430 flash handling. All examples
  • Download » Application Notes, PDF, 62 Kb, Revision: A, 07-17-2006
    MSP430 Software Coding Techniques (Rev. A)
    This application report covers software techniques and topics of interest to all MSP430 programmers. The first part of the document discusses the MSP430 standard interrupt-based code flow model, recommended for the vast majority of applications. The next part discusses a handful of techniques that should be considered by any developer that sets out to develop an MSP430 application. Using these met
  • Download » Application Notes, PDF, 19 Kb, Revision: H, 07-14-2010
    Programming a Flash-Based MSP430 Using the JTAG Interface (Rev. H)
    This application report has been superseded by the document shown below. Information previously contained in this application report can be found by clicking on the following links.- MSP430 Programming Via the JTAG Interface User's Guide Download MSP430 Programming Via the JTAG Interface (PDF) Download
  • Download » Application Notes, PDF, 458 Kb, Revision: A, 06-14-2010
    Tiny DCDC Converter Reference Design (Rev. A)
    This reference design is presented to help application designers and others who are trying to use the MSP430 in a system with an input voltage in the range of 3.6 V to 6 V with the primary design objective to minimize solution size as well as to maintain high efficiency and long battery life.
  • Download » Application Notes, PDF, 475 Kb, 03-27-2008
    Understanding MSP430 Flash Data Retention
    The MSP430 family of microcontrollers, as part of its broad portfolio, offers both read-only memory (ROM)-based and flash-based devices. Understanding the MSP430 flash is extremely important for efficient, robust, and reliable system design. Data retention is one of the key aspects to flash reliability. In this application report, data retention for the MSP430 flash is discussed in detail and the
  • Download » Application Notes, PDF, 121 Kb, Revision: A, 06-14-2010
    Boost DC/DC with Ultra-Low Shutdown Current (Rev. A)
    This reference design is presented to help application designers and others who are trying to use the MSP430 in a system that requires a very low input voltage range while also maintaining high efficiency. Battery life is extended as well as a result of the low quiescent current (5 mA) and ultra-low shutdown current (5 nA) of the TPS61097-33. This particular design allows for an input voltage betw
  • Download » Application Notes, PDF, 961 Kb, Revision: B, 06-14-2010
    1.8V – 5.5V Input, High-Efficiency DCDC Converter Reference Design for MSP430 (Rev. B)
    This reference design is presented to help application designers and others who are trying to use the MSP430 in a system with an input voltage in the range of 1.8 V to 5.5 V, and who must increase the application run time by making use of the complete battery voltage range while still maintaining high efficiency over the entire battery life.
  • Download » Application Notes, PDF, 95 Kb, 03-29-2007
    Efficient MSP430 Code Synthesis for an FIR Filter
    Digital filtering can be easily accomplished on the MSP430 using efficient multiplication. The tool accompanying this document automatically converts FIR filter coefficients to MSP430 assembly code that can be used in any application. Horner’s method and CSD format is used to accomplish the efficient multiply operations. The performance of the filter on the MSP430 is shown by evaluating the gain a
  • Download » Application Notes, PDF, 460 Kb, Revision: A, 03-17-2009
    AES128 – A C Implementation for Encryption and Decryption (Rev. A)
    This application report describes the AES algorithm and the use of a suggested C implementation for AES encryption and decryption with MSP430.Note: This document may be subject to the export control policies of the local government.
  • Download » Application Notes, PDF, 426 Kb, Revision: D, 07-18-2017
    MSP430 32-kHz Crystal Oscillators (Rev. D)
    Selection of the right crystal, correct load circuit, and proper board layout are important for a stable crystal oscillator. This application report summarizes crystal oscillator function and explains the parameters to select the correct crystal for ultra-low-power operation of an MSP430™ MCU. In addition, hints and examples for correct board layout are given. The document also contains detailed i
  • Download » Application Notes, PDF, 37 Kb, Revision: A, 05-19-2003
    Using the TPS3619 with MSP430 Microcontrollers Can Reduce Sys Power Consumption (Rev. A)
    The MSP430 series of microcontrollers are ideal in applications where battery life is critical. These microcontollers require only 0.1?A of current in low-power RAM retention mode; In this mode the microcontroller must have power to retain volatile memory. In some systems with charge pumps, the TPS3619 can be used to shut down the charge pump, saving system power consumption.
  • Download » Application Notes, PDF, 837 Kb, Revision: F, 09-06-2016
    Advanced Debugging Using the Enhanced Emulation Module (EEM) With CCS v6 (Rev. F)
  • Download » Application Notes, PDF, 330 Kb, Revision: C, 01-12-2012
    Powering the MSP430 from a High Voltage Input using the TPS62122 (Rev. C)

Moldel Line

Series: MSP430G2231 (5)

Manufacturer's Classification

  • Semiconductors> Microcontrollers (MCU)> MSP430 ultra-low-power MCUs> MSP430G2x/i2x

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