TMS320C25 is not recommended for new designs.
This product continues to be in production to support existing customers. Please consider one of these alternatives:
Similar functionality to the compared device.
TMS320C6748 ACTIVE Low power C674x floating-point DSP- 456MHz, SATA This product is a newer generation of DSPs with higher performance & improved connectivity options.

Product details


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  • 80-ns Instruction Cycle Time
  • 544 Words of On-Chip Data RAM
  • 4K Words of On-Chip Secure Program EPROM (TMS320E25)
  • 4K Words of On-Chip Program ROM (TMS320C25)
  • 128K Words of Data/Program Space
  • 32-Bit ALU/Accumulator
  • 16 × 16-Bit Multiplier With a 32-Bit Product
  • Block Moves for Data/Program Management
  • Repeat Instructions for Efficient Use of Program Space
  • Serial Port for Direct Codec Interface
  • Synchronization Input for Synchronous Multiprocessor Configurations
  • Wait States for Communication to Slow Off-Chip Memories/Peripherals
  • On-Chip Timer for Control Operations
  • Single 5-V Supply
  • Packaging: 68-Pin PGA, PLCC, and CER-QUAD
  • 68-to-28 Pin Conversion Adapter Socket for EPROM Programming
  • Commercial and Military Versions Available
  • NMOS Technology:
    TMS32020 . . . 200-ns cycle time
  • CMOS Technology:
    TMS320C25 . . . 100-ns cycle time
    TMS320E25 . . . 100-ns cycle time
    TMS320C25-50 . . . 80-ns cycle time

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This data sheet provides complete design documentation for the second-generation devices of the TMS320 family. This facilitates the selection of the devices best suited for user applications by providing all specifications and special features for each TMS320 member. This data sheet is divided into four major sections: architecture, electrical specifications (NMOS and CMOS), timing diagrams, and mechanical data. In each of these sections, generic information is presented first, followed by specific device information. An index is provided for quick reference to specific information about a device.

The TMS320 family of 16/32-bit single-chip digital signal processors combines the flexibility of a high-speed controller with the numerical capability of an array processor, thereby offering an inexpensive alternative to multichip bit-slice processors. The highly paralleled architecture and efficient instruction set provide speed and flexibility to produce a MOS microprocessor family that is capable of executing more than 12.5 MIPS (million instructions per section). The TMS320 family optimizes speed by implementing functions in hardware that other processors implement through microcode or software. This hardware-intensive approach provides the design engineer with processing power previously unavailable on a single chip.

The TMS320 family consists of three generations of digital signal processors. The first generation contains the TMS32010 and its spinoffs. The second generation includes the TMS32020, TMS320C25, and TMS320E25, which are described in this data sheet. The TMS320C30 is a floating-point DSP device designed for even higher performance. Many features are common among the TMS320 processors. Specific features are added in each processor to provide different cost/performance tradeoffs. Software compatibility is maintained throughout the family to protect the user's investment in architecture. Each processor has software and hardware tools to facilitate rapid design.

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Technical documentation

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Type Title Date
* Data sheet Second-Generation Digital Signal Processors datasheet (Rev. B) Nov. 01, 1990
Technical article Bringing the next evolution of machine learning to the edge Nov. 27, 2018
Technical article Industry 4.0 spelled backward makes no sense – and neither does the fact that you haven’t heard of TI’s newest processor yet Oct. 30, 2018
Technical article How quality assurance on the Processor SDK can improve software scalability Aug. 22, 2018
Technical article Clove: Low-Power video solutions based on Sitara™ AM57x processors Jul. 21, 2016
Application note TMS320 Hardware Applications ( Contains Scanned Text) Oct. 01, 1997
Application note Implementing Field-Oriented Control of AC Motors with the TMS320C25 DSP Jul. 01, 1997
Application note Sensorless Control of a Trapezoidal Brushless DC Motor Using the TMS320C25 DSP Jul. 01, 1997
Application note TMS320C25 Logical Shifts in Parallel With ALU Operations Jun. 01, 1997
Application note Interfacing the TLC2543 ADC to the TMS320C25 DSP Feb. 25, 1997
User guide Addendum to TMS320C2xx Data Sheet & User's Guides, SPRS028/SPRU093/SPRU014C (Rev. A) Sep. 15, 1996
Application note Design of Active Noise Control Systems With the TMS320 Family Jun. 01, 1996
Application note Engine Knock Detection Using Spectral Analysis With TMS320C25 or TMS320C30 DSPs Jan. 01, 1995
Application note Setting Up TMS320 DSP Interrupts in 'C' Nov. 01, 1994
Application note 8 X 8 Discrete Cosine Transforms on TMS320C25/TMS320C30 (Contains Scanned Text) Oct. 01, 1994
Application note A DSP GMSK Modem for Mobitex and Other Wireless Infrastructures Oct. 01, 1994
Application note Adaptive Filters With TMS320C25 or TMS320C30 ( Contains Scanned Text) Oct. 01, 1994
Application note Automated Dialing of Cellular Telephones Using Speech Recognition Oct. 01, 1994
Application note Speaker Independent Speech Recognition on the TMS320C2x and TMS320C5x DSPs Oct. 01, 1994
Application note Minimizing Quantization Effects Using the TMS320 DSP Family Jul. 01, 1994
Application note Transmission of Still and Moving Images Over Narrowband Channels Feb. 01, 1994
User guide Addendum To The TMS320C2x C Source Debugger User's Guide Jun. 01, 1992
User guide TMS320C2x C Source Debugger User's Guide Apr. 01, 1991
Application note Interfacing the TLC32040 Family to the TMS320 Family (Rev. A) Jan. 01, 1988

Design & development

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