16-bit DSP, 40-MHz, 8-kw flash, 32-pin



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LQFP (VF) 32 49 mm² 7 x 7 open-in-new Find other C2000 real-time microcontrollers


  • High-Performance Static CMOS Technology
    • 25-ns Instruction Cycle Time (40 MHz)
    • 40-MIPS Performance
    • Low-Power 3.3-V Design
  • Based on TMS320C2xx DSP CPU Core
    • Code-Compatible With 240x and F243/F241/C242
    • Instruction Set Compatible With F240
  • On-Chip Memory
    • Up to 8K Words x 16 Bits of Flash EEPROM (2 Sectors) (LF2401A)
    • 8K Words x 16 Bits of ROM (LC2401A)
    • Programmable "Code-Security" Feature for the On-Chip Flash/ROM
    • Up to 1K Words x 16 Bits of Data/Program RAM
      • 544 Words of Dual-Access RAM
      • Up to 512 Words of Single-Access RAM
  • Boot ROM
    • SCI Bootloader
  • Event-Manager (EV) Module (EVA), Which Includes:
    • Two 16-Bit General-Purpose Timers
    • Seven 16-Bit Pulse-Width Modulation (PWM) Channels Which Enable:
      • Three-Phase Inverter Control
      • Center- or Edge-Alignment of PWM Channels
      • Emergency PWM Channel Shutdown With External PDPINTA Pin
    • Programmable Deadband (Deadtime) Prevents Shoot-Through Faults
    • One Capture Unit for Time-Stamping of External Events
    • Input Qualifier for Select Pins
    • Synchronized A-to-D Conversion
    • Designed for AC Induction, BLDC, Switched Reluctance, and Stepper Motor Control
  • Small Foot-Print (7 mm × 7 mm) Ideally Suited for Space-Constrained Applications
  • Watchdog (WD) Timer Module
  • 10-Bit Analog-to-Digital Converter (ADC)
    • 5 Multiplexed Input Channels
    • 500 ns Minimum Conversion Time
    • Selectable Twin 8-State Sequencers Triggered by Event Manager
  • Serial Communications Interface (SCI)
  • Phase-Locked-Loop (PLL)-Based Clock Generation
  • Up to 13 Individually Programmable, Multiplexed General-Purpose Input/Output (GPIO) Pins
  • User-Selectable Dual External Interrupts (XINT1 and XINT2)
  • Power Management:
    • Three Power-Down Modes
    • Ability to Power Down Each Peripheral Independently
  • Real-Time JTAG-Compliant Scan-Based Emulation, IEEE Standard 1149.1 (JTAG)
  • Development Tools Include:
    • Texas Instruments (TI) ANSI C Compiler, Assembler/ Linker, and Code Composer Studio™ Debugger
    • Evaluation Modules
    • Scan-Based Self-Emulation (XDS510™)
    • Broad Third-Party Digital Motor Control Support
  • 32-Pin VF Low-Profile Quad Flatpack (LQFP)
  • Extended Temperature Options (A and S)
    • A: –40°C to 85°C
    • S: –40°C to 125°C

Code Composer Studio and XDS510 are trademarks of Texas Instruments.
All trademarks are the property of their respective owners.
IEEE Standard 1149.1-1990, IEEE Standard Test-Access Port; however, boundary scan is not supported in this device family.
TMS320C24x, TMS320C2000, TMS320, and C24x are trademarks of Texas Instruments.
Throughout this document, TMS320Lx2401A is used as a generic name for the TMS320LF2401A and TMS320LC2401A devices. An abbreviated name, Lx2401A, denotes both devices as well.

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The TMS320Lx2401A device, a new member of the TMS320C24x™ generation of digital signal processor (DSP) controllers, is part of the TMS320C2000™ platform of fixed-point DSPs. The Lx2401A device offers the enhanced TMS320™ DSP architectural design of the C2xx core CPU for low-cost, low-power, and high-performance processing capabilities. Several advanced peripherals, optimized for digital motor and motion control applications, have been integrated to provide a true single-chip DSP controller. While code-compatible with the existing 240x and C24x™ DSP controller devices, the Lx2401A offers increased processing performance (40 MIPS) and a higher level of peripheral integration. See the TMS320x240xA Device Summary section for device-specific features.

The Lx2401A device offers a peripheral suite tailored to meet the specific price/performance points required by various applications. The Lx2401A also offers a cost-effective reprogrammable solution for volume production. A password-based "code security" feature on the device is useful in preventing unauthorized duplication of proprietary code stored in on-chip Flash/ROM. Note that the LF2401A contains a 256-word boot ROM to facilitate in-circuit programming. The boot ROM on LC2401A is used for test purposes.

The Lx2401A offers an event manager module which has been optimized for digital motor control and power conversion applications. Capabilities of this module include center- and/or edge-aligned PWM generation, programmable deadband to prevent shoot-through faults, and synchronized analog-to-digital conversion. Select EV pins have been provided with an "input-qualifier" circuitry, which minimizes inadvertent pin-triggering by glitches.

The high-performance, 10-bit analog-to-digital converter (ADC) has a minimum conversion time of 500 ns and offers up to 5 channels of analog input. The autosequencing capability of the ADC allows a maximum of 16 conversions to take place in a single conversion session without any CPU overhead.

A serial communications interface (SCI) is integrated on all devices to provide asynchronous communication to other devices in the system. To maximize device flexibility, functional pins are also configurable as general-purpose inputs/outputs (GPIOs).

To streamline development time, JTAG-compliant scan-based emulation has been integrated into all devices. This provides non-intrusive real-time capabilities required to debug digital control systems. A complete suite of code-generation tools from C compilers to the industry-standard Code Composer Studio™ debugger supports this family. Numerous third-party developers not only offer device-level development tools, but also system-level design and development support.

NOTE: The Lx2401A device has reduced peripheral functionality compared to other 24x/240x devices. While peripherals such as SPI and CAN are absent on the Lx2401A, peripherals such as EV and ADC have reduced functionality. For example, in the case of EV, there is no QEP unit and the Capture unit has only one capture pin (as opposed to three or six pins in other devices). The ADC has only five input channels (as opposed to eight or sixteen channels in other devices). For these reasons, some bits that are valid in other 24x/240x devices are not applicable in the Lx2401A. The registers and their valid bits are described in Table 16, Lx2401A DSP Peripheral Register Description. For a description of those registers and bits that are valid, refer to the TMS320LF/LC240xA DSP Controllers Reference Guide: System and Peripherals (literature number SPRU357). Any exceptions to SPRU357 has been described in the respective peripheral sections in this data sheet.

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No design support from TI available

This product does not have ongoing design support from TI for new projects, such as new content or software updates. If available, you will find relevant collateral, software and tools in the product folder. You can also search for archived information in the TI E2ETM support forums.

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Technical documentation

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Type Title Date
* Data sheet TMS320LF2401A, TMS320LC2401A DSP Controllers datasheet (Rev. K) Jul. 12, 2007
* Errata TMS320LF2401A, TMS320LC2401A DSP Controller Silicon Errata (Rev. G) Jun. 01, 2005
Application note EEPROM Emulation for Gen 2 C2000 Real-Time MCUs (Rev. A) Jul. 23, 2020
Application note Development Tool Versions for C2000 Support Jul. 19, 2019
Application note C2000™ MISRA-C Policy Sep. 26, 2017
Application note Semiconductor and IC Package Thermal Metrics (Rev. C) Apr. 19, 2016
Application note Calculating FIT for a Mission Profile Mar. 24, 2015
Application note Programming External Nonvolatile Memory Using SDFlash for TMS320C28x Devices Nov. 16, 2009
Application note Common Object File Format (COFF) Apr. 15, 2009
Application note Migrating from TMS320x2833x/2823x to TMS320x2834x Mar. 03, 2009
User guide TMS320x280x, 2801x, 2804x Serial Peripheral Interface (SPI) Reference Guide Feb. 05, 2009
User guide TMS320x280x, 2801x DSP Enhanced Controller Area Network (eCAN) User's Guide Jan. 22, 2009
Application note Flash Programming Solutions for the TMS320F28xxx DSCs Aug. 19, 2008
Application note Microstepping Bipolar Drive of Two-Phase Hybrid Stepping Motor on F2808 DSP May 02, 2008
Application note Using Enhanced Pulse Width Modulator (ePWM) Module for 0-100% Duty Cycle Control Dec. 20, 2006
Application note Using the eQEP Module in TMS320x280x as a Dedicated Capture Nov. 30, 2006
User guide TMS320LF/LC240xA DSP Controllers System and Peripherals RG (Rev. C) May 10, 2006
Application note Average Current Mode Controlled Power Factor Correction Converter..TMS320LF2407A (Rev. A) Jul. 19, 2005
Application note Online Stack Overflow Detection on the TMS320C28x DSP May 02, 2003
Application note Getting Started in C and Assembly Code with the TMS320LF240x DSP (Rev. A) Jul. 10, 2002
User guide TMS320F/C24x DSP Controllers CPU & Instr. Set RG-Manual Update Sheet (SPRU160C) (Rev. A) Jul. 01, 2002
User guide TMS320F/C24x DSP Controllers CPU and Instruction Set Reference Guide (Rev. C) Mar. 31, 1999

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Software development

Code Composer Studio (CCS) Integrated Development Environment (IDE) v3 - for F24x/C24x devices

Code Composer Studio is comprised of a suite of tools used to develop and debug embedded applications. It includes a compiler source code editor, project build environment, debugger, profiler and many other features. The intuitive IDE provides a single user interface taking you through each step of (...)

LF240x Flash Tools
FTLF240X — Flash tools for the C2000™real-time TMS320LF240x microcontrollers
GUI CCStudio Plugin

The JTAG based Flash plug-ins will enable you to reprogram the on-chip Flash of the Digital Signal Controller within the Code Composer Studio environment. Be sure you choose the one that is appropriate for your version of CCS. It may also be possible to download the updates (...)

LF2401A Serial Flash Programming Utility
SPRC073 — Serial Port Flash Programming Utility. This programs the Flash Memory on the TMS320LF2401A parts over the Serial (SCI) Interface.
LF240xA Serial Flash Programming Utility
SPRC074 — Serial Port Flash Programming Utility. This programs the Flash Memory on the TMS320LF240x-A parts over the Serial (SCI) Interface. (For the LF2401A, please download the corresponding version – do not use this software)
SPRC068.ZIP (1930 KB)
SPRC069.ZIP (1723 KB)
SPRC070.ZIP (171 KB)
SPRC071.ZIP (1456 KB)
SPRC073.ZIP (339 KB)
SPRC104.ZIP (1801 KB)
SPRC141.ZIP (413 KB)
SPRC142.ZIP (1118 KB)

Design tools & simulation

C2000 Third-party search tool
C2000-3P-SEARCH TI has partnered with multiple companies to offer a wide range of solutions and services for TI C2000 devices. These companies can accelerate your path to production using C2000 devices. Download this search tool to quickly browse third-party details and find the right third-party to meet your (...)

CAD/CAE symbols

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Ordering & quality

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  • MTBF/FIT estimates
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  • Qualification summary
  • Ongoing reliability monitoring

Support & training

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