SPRSP45B March   2020  – December 2020 TMS320F280021 , TMS320F280021-Q1 , TMS320F280023 , TMS320F280023-Q1 , TMS320F280023C , TMS320F280025 , TMS320F280025-Q1 , TMS320F280025C , TMS320F280025C-Q1


  1. Features
  2. Applications
  3. Description
    1. 3.1 Functional Block Diagram
  4. Revision History
  5. Device Comparison
    1. 5.1 Related Products
  6. Terminal Configuration and Functions
    1. 6.1 Pin Diagrams
    2. 6.2 Pin Attributes
    3. 6.3 Signal Descriptions
      1. 6.3.1 Analog Signals
      2. 6.3.2 Digital Signals
      3. 6.3.3 Power and Ground
      4. 6.3.4 Test, JTAG, and Reset
    4. 6.4 Pin Multiplexing
      1. 6.4.1 GPIO Muxed Pins
        1. GPIO Muxed Pins Table
      2. 6.4.2 Digital Inputs on ADC Pins (AIOs)
      3. 6.4.3 GPIO Input X-BAR
      4. 6.4.4 GPIO Output X-BAR, CLB X-BAR, CLB Output X-BAR, and ePWM X-BAR
    5. 6.5 Pins With Internal Pullup and Pulldown
    6. 6.6 Connections for Unused Pins
  7. Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings – Commercial
    3. 7.3  ESD Ratings – Automotive
    4. 7.4  Recommended Operating Conditions
    5.     Supply Voltages
    6. 7.5  Power Consumption Summary
      1. 7.5.1 System Current Consumption
      2. 7.5.2 Operating Mode Test Description
      3. 7.5.3 Current Consumption Graphs
      4. 7.5.4 Reducing Current Consumption
        1. Typical Current Reduction per Disabled Peripheral
    7. 7.6  Electrical Characteristics
    8. 7.7  Thermal Resistance Characteristics for PN Package
    9. 7.8  Thermal Resistance Characteristics for PM Package
    10. 7.9  Thermal Resistance Characteristics for PT Package
    11. 7.10 Thermal Design Considerations
    12. 7.11 System
      1. 7.11.1 Power Management
        1. Internal 1.2-V LDO Voltage Regulator (VREG)
        2. Power Sequencing
        3. Power-On Reset (POR)
        4. Brownout Reset (BOR)
      2. 7.11.2 Reset Timing
        1. Reset Sources
        2. Reset Electrical Data and Timing
          1. Reset (XRSn) Timing Requirements
          2. Reset (XRSn) Switching Characteristics
          3. Reset Timing Diagrams
      3. 7.11.3 Clock Specifications
        1. Clock Sources
        2. Clock Frequencies, Requirements, and Characteristics
          1. Input Clock Frequency and Timing Requirements, PLL Lock Times
            1. Input Clock Frequency
            2. XTAL Oscillator Characteristics
            3. X1 Timing Requirements
            4. APLL Characteristics
            5. XCLKOUT Switching Characteristics
            6. Internal Clock Frequencies
        3. Input Clocks and PLLs
        4. Crystal Oscillator
          1. Crystal Oscillator Parameters
          2. Crystal Oscillator Electrical Characteristics
        5. Internal Oscillators
          1. INTOSC Characteristics
      4. 7.11.4 Flash Parameters
      5. 7.11.5 Emulation/JTAG
        1. JTAG Electrical Data and Timing
          1. JTAG Timing Requirements
          2. JTAG Switching Characteristics
          3. JTAG Timing Diagram
        2. cJTAG Electrical Data and Timing
          1. cJTAG Timing Requirements
          2. cJTAG Switching Characteristics
          3. cJTAG Timing Diagram
      6. 7.11.6 GPIO Electrical Data and Timing
        1. GPIO – Output Timing
          1. General-Purpose Output Switching Characteristics
        2. GPIO – Input Timing
          1. General-Purpose Input Timing Requirements
          2. Sampling Mode
        3. Sampling Window Width for Input Signals
      7. 7.11.7 Interrupts
        1. External Interrupt (XINT) Electrical Data and Timing
          1. External Interrupt Timing Requirements
          2. External Interrupt Switching Characteristics
          3. External Interrupt Timing
      8. 7.11.8 Low-Power Modes
        1. Clock-Gating Low-Power Modes
        2. Low-Power Mode Wake-up Timing
          1. IDLE Mode Timing Requirements
          2. IDLE Mode Switching Characteristics
          3. IDLE Entry and Exit Timing Diagram
          4. STANDBY Mode Timing Requirements
          5. STANDBY Mode Switching Characteristics
          6. STANDBY Entry and Exit Timing Diagram
          7. HALT Mode Timing Requirements
          8. HALT Mode Switching Characteristics
          9. HALT Entry and Exit Timing Diagram
    13. 7.12 Analog Peripherals
      1.      Analog Pins and Internal Connections
      2.      Analog Signal Descriptions
      3. 7.12.1 Analog-to-Digital Converter (ADC)
        1. ADC Configurability
          1. Signal Mode
        2. ADC Electrical Data and Timing
          1. ADC Operating Conditions
          2. ADC Characteristics
          3. ADC Input Model
          4. ADC Timing Diagrams
      4. 7.12.2 Temperature Sensor
        1. Temperature Sensor Electrical Data and Timing
          1. Temperature Sensor Characteristics
      5. 7.12.3 Comparator Subsystem (CMPSS)
        1. CMPSS Electrical Data and Timing
          1. Comparator Electrical Characteristics
          2.        CMPSS Comparator Input Referred Offset and Hysteresis
          3. CMPSS DAC Static Electrical Characteristics
          4. CMPSS Illustrative Graphs
    14. 7.13 Control Peripherals
      1. 7.13.1 Enhanced Pulse Width Modulator (ePWM)
        1. Control Peripherals Synchronization
        2. ePWM Electrical Data and Timing
          1. ePWM Timing Requirements
          2. ePWM Switching Characteristics
          3. Trip-Zone Input Timing
            1. Trip-Zone Input Timing Requirements
        3. External ADC Start-of-Conversion Electrical Data and Timing
          1. External ADC Start-of-Conversion Switching Characteristics
      2. 7.13.2 High-Resolution Pulse Width Modulator (HRPWM)
        1. HRPWM Electrical Data and Timing
          1. High-Resolution PWM Characteristics
      3. 7.13.3 Enhanced Capture and High-Resolution Capture (eCAP, HRCAP)
        1. High-Resolution Capture (HRCAP)
        2.       eCAP and HRCAP Block Diagram
        3. eCAP/HRCAP Synchronization
        4. eCAP Electrical Data and Timing
          1. eCAP Timing Requirements
          2. eCAP Switching Characteristics
        5. HRCAP Electrical Data and Timing
          1. HRCAP Switching Characteristics
          2.        HRCAP Figure and Graph
      4. 7.13.4 Enhanced Quadrature Encoder Pulse (eQEP)
        1. eQEP Electrical Data and Timing
          1. eQEP Timing Requirements
          2. eQEP Switching Characteristics
    15. 7.14 Communications Peripherals
      1. 7.14.1 Controller Area Network (CAN)
      2. 7.14.2 Inter-Integrated Circuit (I2C)
        1. I2C Electrical Data and Timing
          1. I2C Timing Requirements
          2. I2C Switching Characteristics
          3. I2C Timing Diagram
      3. 7.14.3 Power Management Bus (PMBus) Interface
        1. PMBus Electrical Data and Timing
          1. PMBus Electrical Characteristics
          2. PMBus Fast Mode Switching Characteristics
          3. PMBus Standard Mode Switching Characteristics
      4. 7.14.4 Serial Communications Interface (SCI)
      5. 7.14.5 Serial Peripheral Interface (SPI)
        1. SPI Master Mode Timings
          1. SPI Master Mode Timing Requirements
          2. SPI Master Mode Switching Characteristics (Clock Phase = 0)
          3. SPI Master Mode Switching Characteristics (Clock Phase = 1)
          4. SPI Master Mode Timing Diagrams
        2. SPI Slave Mode Timings
          1. SPI Slave Mode Timing Requirements
          2. SPI Slave Mode Switching Characteristics
          3. SPI Slave Mode Timing Diagrams
      6. 7.14.6 Local Interconnect Network (LIN)
      7. 7.14.7 Fast Serial Interface (FSI)
        1. FSI Transmitter
          1. FSITX Electrical Data and Timing
            1. FSITX Switching Characteristics
            2. FSITX Timings
        2. FSI Receiver
          1. FSIRX Electrical Data and Timing
            1. FSIRX Timing Requirements
            2. FSIRX Switching Characteristics
            3. FSIRX Timings
        3. FSI SPI Compatibility Mode
          1. FSITX SPI Signaling Mode Electrical Data and Timing
            1. FSITX SPI Signaling Mode Switching Characteristics
            2. FSITX SPI Signaling Mode Timings
      8. 7.14.8 Host Interface Controller (HIC)
        1. HIC Electrical Data and Timing
          1. HIC Timing Requirements
          2. HIC Switching Characteristics
          3. HIC Timing Diagrams
  8. Detailed Description
    1. 8.1  Overview
    2. 8.2  Functional Block Diagram
    3. 8.3  Memory
      1. 8.3.1 Memory Map
        1. Dedicated RAM (Mx RAM)
        2. Local Shared RAM (LSx RAM)
        3. Global Shared RAM (GSx RAM)
      2. 8.3.2 Flash Memory Map
        1. Addresses of Flash Sectors
      3. 8.3.3 Peripheral Registers Memory Map
    4. 8.4  Identification
    5. 8.5  Bus Architecture – Peripheral Connectivity
    6. 8.6  C28x Processor
      1. 8.6.1 Floating-Point Unit (FPU)
      2. 8.6.2 Fast Integer Division Unit
      3. 8.6.3 Trigonometric Math Unit (TMU)
      4. 8.6.4 VCRC Unit
    7. 8.7  Embedded Real-Time Analysis and Diagnostic (ERAD)
    8. 8.8  Background CRC-32 (BGCRC)
    9. 8.9  Direct Memory Access (DMA)
    10. 8.10 Device Boot Modes
      1. 8.10.1 Device Boot Configurations
        1. Configuring Boot Mode Pins
        2. Configuring Boot Mode Table Options
      2. 8.10.2 GPIO Assignments
    11. 8.11 Dual Code Security Module
    12. 8.12 Watchdog
    13. 8.13 C28x Timers
    14. 8.14 Dual-Clock Comparator (DCC)
      1. 8.14.1 Features
      2. 8.14.2 Mapping of DCCx (DCC0 and DCC1) Clock Source Inputs
    15. 8.15 Configurable Logic Block (CLB)
  9. Applications, Implementation, and Layout
    1. 9.1 TI Reference Design
  10. 10Device and Documentation Support
    1. 10.1 Getting Started and Next Steps
    2. 10.2 Device and Development Support Tool Nomenclature
    3. 10.3 Markings
    4. 10.4 Tools and Software
    5. 10.5 Documentation Support
    6. 10.6 Support Resources
    7. 10.7 Trademarks
    8. 10.8 Electrostatic Discharge Caution
    9. 10.9 Glossary
  11. 11Mechanical, Packaging, and Orderable Information
    1. 11.1 Packaging Information

Package Options

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

Tools and Software

TI offers an extensive line of development tools. Some of the tools and software to evaluate the performance of the device, generate code, and develop solutions follow. To view all available tools and software for C2000™ real-time control MCUs, visit the C2000 real-time control MCUs – Design & development page.

Development Tools

LAUNCHXL-F280025C is a low-cost development board for TI C2000™ Real-Time Controllers series of F28002x devices. Ideal for initial evaluation and prototyping, it provides a standardized and easy-to-use platform to develop your next application. This extended version LaunchPad™ development kit offers extra pins for evaluation and supports the connection of two BoosterPack™ plug-in modules.

F280025 controlCARD
The F280025 controlCARD is an HSEC180 controlCARD based evaluation and development tool for the C2000™ F28002x series of microcontroller products. controlCARDs are ideal to use for initial evaluation and system prototyping. controlCARDs are complete board-level modules that utilize one of two standard form factors (100-pin DIMM or 180-pin HSEC ) to provide a low-profile single-board controller solution. For first evaluation controlCARDs are typically purchased bundled with a baseboard or bundled in an application kit.

TI Resource Explorer
To enhance your experience, be sure to check out the TI Resource Explorer to browse examples, libraries, and documentation for your applications.

Software Tools

C2000Ware for C2000 MCUs
C2000Ware for C2000™ MCUs is a cohesive set of software and documentation created to minimize development time. It includes device-specific drivers, libraries, and peripheral examples.

Digital Power SDK
Digital Power SDK is a cohesive set of software infrastructure, tools, and documentation designed to minimize C2000 MCU-based digital power system development time targeted for various AC-DC, DC-DC and DC-AC power supply applications. The software includes firmware that runs on C2000 digital power evaluation modules (EVMs) and TI designs (TIDs), which are targeted for solar, telecom, server, electric vehicle chargers and industrial power delivery applications. Digital Power SDK provides all the needed resources at every stage of development and evaluation in a digital power applications.

Motor Control SDK
Motor Control SDK is a cohesive set of software infrastructure, tools, and documentation designed to minimize C2000 MCU-based motor control system development time targeted for various three-phase motor control applications. The software includes firmware that runs on C2000 motor control evaluation modules (EVMs) and TI designs (TIDs), which are targeted for industrial drive and other motor control, Motor Control SDK provides all the needed resources at every stage of development and evaluation for high-performance motor control applications.

Code Composer Studio™ (CCS) Integrated Development Environment (IDE) for C2000 microcontrollers
Code Composer Studio is an integrated development environment (IDE) that supports TI's Microcontroller and Embedded Processors portfolio. Code Composer Studio comprises a suite of tools used to develop and debug embedded applications. It includes an optimizing C/C++ compiler, source code editor, project build environment, debugger, profiler, and many other features. The intuitive IDE provides a single user interface taking the user through each step of the application development flow. Familiar tools and interfaces allow users to get started faster than ever before. Code Composer Studio combines the advantages of the Eclipse software framework with advanced embedded debug capabilities from TI resulting in a compelling feature-rich development environment for embedded developers.

SysConfig System configuration tool
SysConfig is a comprehensive collection of graphical utilities for configuring pins, peripherals, radios, subsystems, and other components. SysConfig helps you manage, expose and resolve conflicts visually so that you have more time to create differentiated applications. The tool's output includes C header and code files that can be used with software development kit (SDK) examples or used to configure custom software. The SysConfig tool automatically selects the pinmux settings that satisfy the entered requirements. The SysConfig tool is delivered integrated in CCS, as a standalone installer, or can be used via the dev.ti.com cloud tools portal. For more information about the SysConfig system configuration tool, visit the System configuation tool page.


Various models are available for download from the product Design & development pages. These models include I/O Buffer Information Specification (IBIS) Models and Boundary-Scan Description Language (BSDL) Models. To view all available models, visit the Design tools & simulation section of the Design & development page for each device.


To help assist design engineers in taking full advantage of the C2000 microcontroller features and performance, TI has developed a variety of training resources. Utilizing the online training materials and downloadable hands-on workshops provides an easy means for gaining a complete working knowledge of the C2000 microcontroller family. These training resources have been designed to decrease the learning curve, while reducing development time, and accelerating product time to market. For more information on the various training resources, visit the C2000™ real-time control MCUs – Support & training site.

The architecture and many of the peripherals of the F28002x are similar to those of the F28004x. The following Workshop material and the Migration Between TMS320F28004x and TMS320F28002x Application Report will cover the technical details of the TMS320F28004x architecture and highlight the device differences, which will be helpful to users of the F28002x device.

Specific TMS320F28004x hands-on training resources can be found at C2000™ MCU Device Workshops.

Technical Introduction to the New C2000 TMS320F28004x Device Family

Many of the peripherals and architecture of the F28002x are similar to the F28004x. This presentation will cover the technical details of the TMS320F28004x architecture and highlight the new improvements to various key peripherals which will be helpful to users of the F28002x device.