SLAS887C September   2014  – March 2021


  1. Features
  2. Applications
  3. Description
  4. Functional Block Diagram
  5. Revision History
  6. Device Comparison
    1. 6.1 Related Products
  7. Terminal Configuration and Functions
    1. 7.1 Pin Diagrams
    2. 7.2 Signal Descriptions
    3. 7.3 Pin Multiplexing
    4. 7.4 Connection of Unused Pins
  8. Specifications
    1. 8.1 Absolute Maximum Ratings
    2. 8.2 ESD Ratings
    3. 8.3 Recommended Operating Conditions
    4. 8.4 Active Mode Supply Current (Into VCC) Excluding External Current
    5. 8.5 Low-Power Mode Supply Currents (Into VCC) Excluding External Current
    6. 8.6 Thermal Resistance Characteristics
    7. 8.7 Timing and Switching Characteristics
      1. 8.7.1  Reset Timing
        1. Reset Timing
      2. 8.7.2  Clock Specifications
        1. DCO in External Resistor Mode
        2. DCO in Internal Resistor Mode
        3. DCO Overall Tolerance Table
        4. DCO in Bypass Mode Recommended Operating Conditions
      3. 8.7.3  Wake-up Characteristics
        1. Wake-up Times From Low Power Modes
      4. 8.7.4  I/O Ports
        1. Schmitt-Trigger Inputs – General-Purpose I/O
        2. Inputs – Ports P1 and P2
        3. Leakage Current – General-Purpose I/O
        4. Outputs – General-Purpose I/O
        5. Output Frequency – General-Purpose I/O
        6. Typical Characteristics – Outputs
      5. 8.7.5  Power Management Module
        1. PMM, High-Side Brownout Reset (BORH)
        2. PMM, Low-Side SVS (SVSL)
        3. PMM, Core Voltage
        4. PMM, Voltage Monitor (VMON)
      6. 8.7.6  Reference Module
        1. Voltage Reference (REF)
        2. Temperature Sensor
      7. 8.7.7  SD24
        1. SD24 Power Supply and Recommended Operating Conditions
        2. SD24 Internal Voltage Reference
        3. SD24 External Voltage Reference
        4. SD24 Input Range
        5. SD24 Performance, Internal Reference (SD24REFS = 1, SD24OSRx = 256)
        6. SD24 Performance, External Reference (SD24REFS = 0, SD24OSRx = 256)
        7. Typical Characteristics
      8. 8.7.8  eUSCI
        1. eUSCI (UART Mode) Clock Frequency
        2. eUSCI (UART Mode) Deglitch Characteristics
        3. eUSCI (SPI Master Mode) Clock Frequency
        4. eUSCI (SPI Master Mode) Timing
        5. eUSCI (SPI Slave Mode) Timing
        6. eUSCI (I2C Mode) Timing
      9. 8.7.9  Timer_A
        1. Timer_A
      10. 8.7.10 Flash
        1. Flash Memory
      11. 8.7.11 Emulation and Debug
        1. JTAG and Spy-Bi-Wire Interface
  9. Detailed Description
    1. 9.1  Overview
    2. 9.2  Functional Block Diagrams
    3. 9.3  CPU
    4. 9.4  Instruction Set
    5. 9.5  Operating Modes
    6. 9.6  Interrupt Vector Addresses
    7. 9.7  Special Function Registers
    8. 9.8  Flash Memory
    9. 9.9  JTAG Operation
      1. 9.9.1 JTAG Standard Interface
      2. 9.9.2 Spy-Bi-Wire Interface
      3. 9.9.3 JTAG Disable Register
    10. 9.10 Peripherals
      1. 9.10.1 Clock System
      2. 9.10.2 Power-Management Module (PMM)
      3. 9.10.3 Digital I/O
      4. 9.10.4 Watchdog Timer (WDT)
      5. 9.10.5 Timer TA0
      6. 9.10.6 Timer TA1
      7. 9.10.7 Enhanced Universal Serial Communication Interface (eUSCI)
      8. 9.10.8 Hardware Multiplier
      9. 9.10.9 SD24
    11. 9.11 Input/Output Diagrams
      1. 9.11.1 Port P1, P1.0 to P1.3, Input/Output With Schmitt Trigger
      2. 9.11.2 Port P1, P1.4 to P1.7, Input/Output With Schmitt Trigger
      3. 9.11.3 Port P2, P2.0 to P2.2 and P2.4 to P2.7, Input/Output With Schmitt Trigger
      4. 9.11.4 Port P2, P2.3, Input/Output With Schmitt Trigger
    12. 9.12 Device Descriptor
    13. 9.13 Memory
      1. 9.13.1 Peripheral File Map
    14. 9.14 Identification
      1. 9.14.1 Device Identification
      2. 9.14.2 JTAG Identification
  10. 10Applications, Implementation, and Layout
  11. 11Device and Documentation Support
    1. 11.1 Getting Started and Next Steps
    2. 11.2 Device Nomenclature
    3. 11.3 Tools and Software
    4. 11.4 Documentation Support
    5. 11.5 Support Resources
    6. 11.6 Trademarks
    7. 11.7 Electrostatic Discharge Caution
    8. 11.8 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

Tools and Software

All MSP microcontrollers are supported by a wide variety of software and hardware development tools. Tools are available from TI and various third parties. See them all at MSP430 ultra-low-power MCUs – Design & development.

Design Kits and Evaluation Modules

32-pin target development board and MSP-FET programmer bundle for MSP430i2x MCUs

The MSP-FET430U32A is a stand-alone ZIF socket target board used to program and debug the MSP430 MCU in-system through the JTAG interface or the Spy-Bi-Wire (2-wire JTAG) protocol.

MSP430 LaunchPad™ Value Line Development Kit

The MSP-EXP430G2 LaunchPad development kit is an easy-to-use microcontroller development board for the low-power and low-cost MSP430G2x MCUs. It has on-board emulation for programming and debugging and features a 14/20-pin DIP socket, on-board buttons and LEDs and BoosterPack plug-in module pinouts that support a wide range of modules for added functionality such as wireless, displays, and more.

MSP430i2040 Submetering EVM

This embedded metering (sub-meter or e-meter) EVM is designed based on the MSP430i2040. The EVM can be connected to the mains (or to DC) and the load directly. The EVM measures the electrical parameters of the load and the result of measurement can be read from the UART port. This EVM provided with built-in power supply and isolated serial connect to facilitate user quick start to the evaluation of the MSP430i2040 in embedded metering application.


MSP430Ware™ Software

MSP430Ware software is a collection of code examples, data sheets, and other design resources for all MSP430 devices delivered in a convenient package. In addition to providing a complete collection of existing MSP430 MCU design resources, MSP430Ware software also includes a high-level API called MSP Driver Library. This library makes it easy to program MSP430 hardware. MSP430Ware software is available as a component of CCS or as a stand-alone package.

MSP430i20xx Code Examples

C code examples are available for every MSP device that configures each of the integrated peripherals for various application needs.

Floating Point Math Library for MSP430

Leveraging the intelligent peripherals of TI devices, this floating point math library of scalar functions brings you up to 26x better performance. Mathlib is easy to integrate into your designs. This library is free and is integrated in both Code Composer Studio and IAR IDEs.

Fixed Point Math Library for MSP

The TI MSP IQmath and Qmath Libraries are a collection of highly optimized and high-precision mathematical functions for C programmers to seamlessly port a floating-point algorithm into fixed-point code on MSP430 and MSP432 devices. These routines are typically used in computationally intensive real-time applications where optimal execution speed, high accuracy and ultra-low energy are critical. By using the IQmath and Qmath libraries, it is possible to achieve execution speeds considerably faster and energy consumption considerably lower than equivalent code written using floating-point math.

Development Tools

Code Composer Studio™ Integrated Development Environment for MSP Microcontrollers

Code Composer Studio (CCS) integrated development environment (IDE) supports all MSP microcontroller devices. CCS comprises a suite of embedded software utilities used to develop and debug embedded applications. CCS includes an optimizing C/C++ compiler, source code editor, project build environment, debugger, profiler, and many other features.

MSP Flasher - Command Line Programmer

MSP Flasher is an open-source shell-based interface for programming MSP microcontrollers through a FET programmer or eZ430 using JTAG or Spy-Bi-Wire (SBW) communication. MSP Flasher can download binary files (.txt or .hex) directly to the MSP microcontroller without an IDE.

MSP MCU Programmer and Debugger

The MSP-FET is a powerful emulation development tool – often called a debug probe – which lets users quickly begin application development on MSP low-power MCUs. Creating MCU software usually requires downloading the resulting binary program to the MSP device for validation and debugging.

MSP-GANG Production Programmer

The MSP Gang Programmer is an MSP430 or MSP432 device programmer that can program up to eight identical MSP430 or MSP432 flash or FRAM devices at the same time. The MSP Gang Programmer connects to a host PC using a standard RS-232 or USB connection and provides flexible programming options that let the user fully customize the process.