TMS320LF2401AVFS Equivalent & Substitute Parts

Part Overview

The TMS320LF2401AVFS is a 16-bit C2xx DSP microcontroller from Texas Instruments' C2000™ C24x series, designed for embedded control applications requiring real-time signal processing. This device features 16KB FLASH program memory, 2K x 8 RAM, and operates at 40MHz with a 3V to 3.6V supply voltage. The part is currently in active production status with verified programmability through DiGi-Electronics and maintains full ROHS3 compliance.

Substitute parts become necessary when the original TMS320LF2401AVFS reaches end-of-life, experiences supply constraints, or when design requirements necessitate enhanced capabilities such as increased core bit-width, expanded I/O count, or improved connectivity options while maintaining core functional compatibility within the C2000™ family.

Substiute Parts

TMS320LF2401AVFS

Texas InstrumentsIn Stock: 2680TMS320LF2401AVFS Datasheet

Current PartRFQ

TMS320F280200DAS

Texas InstrumentsIn Stock: 2379TMS320F280200DAS Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The TMS320F280200DAS qualifies as a substitute based on the following alignment criteria:

Matching Parameters:

• Manufacturer: Texas Instruments (same OEM)
• Base Product Number: TMS320 (same family)
• Program Memory Size: 16KB (8K x 16) FLASH (identical)
• Speed: 40MHz (identical)
• Operating Temperature: -40°C ~ 125°C (TA) (identical)
• Mounting Type: Surface Mount (identical)
• RoHS Status: ROHS3 Compliant (identical)
• ECCN and HTSUS classifications (identical regulatory treatment)

Substitution Logic: The TMS320F280200DAS represents an architectural upgrade within the C2000™ family, transitioning from the 16-bit C24x to the 32-bit C28x Piccolo™ series. While the core bit-width increases from 16-bit to 32-bit single-core, the identical program memory capacity, clock speed, and operating parameters allow this device to serve as a functional substitute in applications where the enhanced processing capability and expanded I/O count (20 vs. 13) provide design flexibility without compromising core memory or timing specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the TMS320LF2401AVFS and TMS320F280200DAS maintain active product status with full ROHS3 compliance and identical regulatory classifications (ECCN 3A991A2, HTSUS 8542.31.0001). Selection between these devices depends on specific design constraints:

Select TMS320LF2401AVFS when:

• 16-bit processing architecture is required by existing firmware or DSP algorithms
• Supply voltage range of 3V to 3.6V is mandated by system design
• 32-LQFP package footprint is fixed in PCB layout
• Verified programmability through DiGi-Electronics is a procurement requirement
• Moisture sensitivity level 3 (168 hours) meets assembly process timelines

Select TMS320F280200DAS when:

• 32-bit single-core processing provides performance margin for future firmware expansion
• Lower supply voltage range (1.71V to 1.995V) aligns with power management objectives
• Expanded I/O count (20 vs. 13) accommodates additional system interfaces
• Enhanced connectivity (I2C, SPI, UART/USART in addition to SCI) is required
• 38-TSSOP package is compatible with PCB layout and assembly capabilities
• Improved moisture sensitivity level 2 (1 year) reduces handling constraints

Frequently Asked Questions (FAQ)

Q: Can the TMS320F280200DAS directly replace the TMS320LF2401AVFS without firmware modification?

A: Direct replacement requires firmware assessment. Both devices share identical program memory capacity (16KB FLASH), clock speed (40MHz), and operating temperature range. However, the architectural transition from 16-bit C2xx DSP to 32-bit C28x requires code recompilation and validation. The expanded instruction set and register architecture of the C28x may require algorithm optimization, though the identical memory footprint and timing specifications support functional substitution in most control applications.

Q: What are the package compatibility implications?

A: The TMS320LF2401AVFS uses 32-LQFP (7x7mm) packaging, while the TMS320F280200DAS uses 38-TSSOP (0.240" width, 6.10mm). These are physically distinct packages requiring separate PCB layouts and assembly processes. Pin-to-pin compatibility does not exist; complete board redesign is necessary for package substitution.

Q: How do the supply voltage ranges affect system design?

A: The TMS320LF2401AVFS operates at 3V to 3.6V, while the TMS320F280200DAS operates at 1.71V to 1.995V. These non-overlapping ranges require independent power supply designs. The lower voltage requirement of the TMS320F280200DAS may reduce power dissipation but necessitates precision voltage regulation and level-shifting for 3.3V peripheral interfaces.

Q: What is the significance of the moisture sensitivity level difference?

A: The TMS320LF2401AVFS has MSL 3 (168-hour floor life), while the TMS320F280200DAS has MSL 2 (1-year floor life). MSL 2 provides extended handling time before reflow soldering, reducing risk of moisture-induced failures during assembly. This difference impacts component storage, handling procedures, and production scheduling.

Q: Are the data converter specifications compatible?

A: No. The TMS320LF2401AVFS includes 5x10-bit A/D converters, while the TMS320F280200DAS includes 7x12-bit A/D converters. The increased resolution (12-bit vs. 10-bit) and channel count (7 vs. 5) provide enhanced analog signal acquisition capability but require firmware adaptation for sensor interface and signal processing algorithms.

Q: Do both devices support the same communication protocols?

A: The TMS320LF2401AVFS supports SCI only. The TMS320F280200DAS supports I2C, SCI, SPI, and UART/USART. The expanded connectivity of the TMS320F280200DAS enables additional system integration options but requires firmware implementation for protocol support.