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TMS320LC31 Status: NRND

Digital Signal Processor


      
         
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Alert Icon   NRND: This product is not recommended for new designs. However, the device, tool, or software continues to be in production to support existing customers. TI does not recommend using this part in a new design. TI encourages designers to consider alternative products for new designs.

Replaced By:

  • TMS320VC33 The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 

Datasheet

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Other qualified versions of TMS320LC31

Version Part Number Definition
Enhanced Product SM320LC31-EP Supports Defense, Aerospace and Medical Applications

Product Information

Features

  • High-Performance Floating-Point Digital Signal Processor (DSP):
    • TMS320C31-80 (5 V)
      25-ns Instruction Cycle Time
      440 MOPS, 80 MFLOPS, 40 MIPS
    • TMS320C31-60 (5 V)
      33-ns Instruction Cycle Time
      330 MOPS, 60 MFLOPS, 30 MIPS
    • TMS320C31-50 (5 V)
      40-ns Instruction Cycle Time
      275 MOPS, 50 MFLOPS, 25 MIPS
    • TMS320C31-40 (5 V)
      50-ns Instruction Cycle Time
      220 MOPS, 40 MFLOPS, 20 MIPS
    • TMS320LC31-40 (3.3 V)
      50-ns Instruction Cycle Time
      220 MOPS, 40 MFLOPS, 20 MIPS
    • TMS320LC31-33 (3.3 V)
      60-ns Instruction Cycle Time
      183.7 MOPS, 33.3 MFLOPS, 16.7 MIPS
  • 32-Bit High-Performance CPU
  • 16-/32-Bit Integer and 32-/40-Bit Floating-Point Operations
  • 32-Bit Instruction Word, 24-Bit Addresses
  • Two 1K × 32-Bit Single-Cycle Dual-Access On-Chip RAM Blocks
  • Boot-Program Loader
  • On-Chip Memory-Mapped Peripherals:
    • One Serial Port
    • Two 32-Bit Timers
    • One-Channel Direct Memory Access (DMA) Coprocessor for Concurrent I/O and CPU Operation
  • Fabricated Using 0.6 um Enhanced Performance Implanted CMOS (EPICTM) Technology by Texas Instruments (TITM)
  • 132-Pin Plastic Quad Flat Package
    (PQ Suffix)
  • Eight Extended-Precision Registers
  • Two Address Generators With Eight Auxiliary Registers and Two Auxiliary Register Arithmetic Units (ARAUs)
  • Two Low-Power Modes
  • Two- and Three-Operand Instructions
  • Parallel Arithmetic/Logic Unit (ALU) and Multiplier Execution in a Single Cycle
  • Block-Repeat Capability
  • Zero-Overhead Loops With Single-Cycle Branches
  • Conditional Calls and Returns
  • Interlocked Instructions for Multiprocessing Support
  • Bus-Control Registers Configure Strobe-Control Wait-State Generation

    EPIC and TI are trademarks of Texas Instruments Incorporated.

Description

The TMS320C31 and TMS320LC31 DSPs are 32-bit, floating-point processors manufactured in 0.6 um triple-level-metal CMOS technology. The TMS320C31 and TMS320LC31 are part of the TMS320C3x generation of DSPs from Texas Instruments.

The TMS320C3x's internal busing and special digital-signal-processing instruction set have the speed and flexibility to execute up to 80 million floating-point operations per second (MFLOPS). The TMS320C3x optimizes speed by implementing functions in hardware that other processors implement through software or microcode. This hardware-intensive approach provides performance previously unavailable on a single chip.

The TMS320C3x can perform parallel multiply and ALU operations on integer or floating-point data in a single cycle. Each processor also possesses a general-purpose register file, a program cache, dedicated ARAUs, internal dual-access memories, one DMA channel supporting concurrent I/O, and a short machine-cycle time. High performance and ease of use are results of these features.

General-purpose applications are greatly enhanced by the large address space, multiprocessor interface, internally and externally generated wait states, one external interface port, two timers, one serial port, and multiple-interrupt structure. The TMS320C3x supports a wide variety of system applications from host processor to dedicated coprocessor.

High-level-language support is easily implemented through a register-based architecture, large address space, powerful addressing modes, flexible instruction set, and well-supported floating-point arithmetic.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsPackage QTY | Package CarrierSymbolsFootprintsSamples
TMS320LC31PQ40NRND 36.60 | 1kuBQFP (PQ) | 132 36 Download CAD Format for this Symbol Download CAD Format for this FootprintNot Available
TMS320LC31PQLOBSOLETE0 to 70 BQFP (PQ) | 132    Download CAD Format for this FootprintNot Available

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 10:18 AM GMT, 08 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 6 WeeksTMS320LC31PQ40
AmericasArrow 228
Avnet 10
Rochester Electronics >1k
EuropeAvnet-SILICA 30
EBV Elektronik 22
Call**TMS320LC31PQL
AmericasRochester Electronics 460
View all Distributors  

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

 Product ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
TMS320LC31PQ40  Green (RoHS & no Sb/Br) CU NIPDAU Level-4-260C-72 HRViewView

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for TMS320LC31 Help

Datasheet

Application Notes

View Application Notes for TMS320C3X DSPs

User Guides

View User Guides for TMS320C3X DSPs

Tools & Software

NamePart # Company Tool / Software Type
C3x Code Composer Free Evaluation ToolsC3XFREETOOLTexas InstrumentsCode Composer Studio(TM) IDE
Code Composer IDECODECOMPOSERTexas InstrumentsCode Composer Studio(TM) IDE
XDS510 Class EmulatorsXDS510Texas InstrumentsEmulators/Analyzers

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