TMS320C25FNLR Equivalent & Substitute Parts

Part Overview

The TMS320C25FNLR is a fixed-point digital signal processor (DSP) from Texas Instruments' TMS320C2x series, housed in a 68-pin LCC (J-Lead) package. This embedded integrated circuit operates at 50MHz with 8kB ROM and 1kB on-chip RAM, designed for serial port interfacing applications requiring 5.00V core and I/O voltage levels.

The TMS320C25FNLR carries a "Not For New Designs" product status, indicating Texas Instruments has discontinued active development and support for this device. Organizations maintaining legacy systems or requiring functional equivalents for production continuity must identify suitable substitute components that maintain electrical and mechanical compatibility.

Substiute Parts

TMS320C25FNLR

Texas InstrumentsIn Stock: 2329TMS320C25FNLR Datasheet

Current PartRFQ

TMS320C25FNA

Texas InstrumentsIn Stock: 65933TMS320C25FNA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TMS320C25FNLR is determined by strict equivalence across the following critical parameters:

• Clock Rate: 50MHz (exact match required)
• Non-Volatile Memory: ROM 8kB (exact match required)
• On-Chip RAM: 1kB (exact match required)
• Voltage - Core: 5.00V (exact match required)
• Voltage - I/O: 5.00V (exact match required)
• Interface: Serial Port (exact match required)
• Operating Temperature Range: 0°C ~ 70°C (exact match required)
• Package / Case: 68-LCC (J-Lead) (exact match required)
• Mounting Type: Surface Mount (exact match required)

The TMS320C25FNA qualifies as a direct substitute based on identical electrical specifications and mechanical packaging. The primary distinction between these parts is packaging format: the TMS320C25FNLR is supplied in Tape & Reel (TR) configuration, while the TMS320C25FNA is supplied in Tube packaging. Both components are manufactured by Texas Instruments within the same TMS320C2x series and maintain full functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The TMS320C25FNA serves as the direct functional equivalent to the TMS320C25FNLR. Both components maintain identical electrical performance, memory configuration, and thermal operating characteristics. Selection between these parts should be based on packaging and supply chain requirements rather than technical performance.

The TMS320C25FNLR in Tape & Reel format is optimized for automated assembly processes and high-volume production environments. The TMS320C25FNA in Tube packaging is suitable for lower-volume applications, manual assembly, or situations where component handling and storage differ from automated production lines.

Both parts carry "Not For New Designs" status from Texas Instruments and maintain ROHS3 compliance and REACH unaffected classification. Moisture sensitivity level 3 (168 hours) applies to both components, requiring appropriate handling and storage protocols during the specified exposure window.

Frequently Asked Questions (FAQ)

Q: Can TMS320C25FNA replace TMS320C25FNLR in existing designs?

A: Yes. The TMS320C25FNA is electrically and mechanically equivalent to the TMS320C25FNLR. Both components feature identical clock rates, memory configurations, voltage specifications, and 68-LCC package dimensions. The only difference is packaging format (Tube versus Tape & Reel).

Q: What is the difference between Tape & Reel and Tube packaging?

A: Tape & Reel (TR) packaging supplies components on continuous carrier tape wound on reels, designed for automated pick-and-place assembly equipment. Tube packaging supplies components in plastic tubes, typically used for manual assembly or lower-volume production. Both formats contain the same component with identical specifications.

Q: Are there any compatibility concerns when switching between TMS320C25FNLR and TMS320C25FNA?

A: No compatibility concerns exist at the component level. Both parts are pin-compatible, electrically identical, and mechanically interchangeable. Compatibility considerations are limited to assembly process requirements and component handling procedures specific to each packaging format.

Q: Do both parts meet the same compliance standards?

A: Yes. Both TMS320C25FNLR and TMS320C25FNA are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity level 3 (168 hours) ratings. Compliance certifications and environmental classifications are identical between the two parts.

Q: Why is the TMS320C25FNLR marked "Not For New Designs"?

A: "Not For New Designs" status indicates Texas Instruments has discontinued active development and support for this device series. Existing designs using this component may continue production, but new designs should evaluate alternative current-generation DSP solutions from Texas Instruments.