TNETV6446AINZWT8 Equivalent & Substitute Parts

Part Overview

The TNETV6446AINZWT8 is a Digital Media System-on-Chip (DMSoC) from Texas Instruments' TMS320DM644x DaVinci™ series, designed for embedded digital media processing applications. This device integrates a 810MHz DSP core with a 405MHz ARM® processor, supporting multiple interfaces including ASP, EBI/EMI, Host Interface, I2C, SPI, UART, and USB. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent substitute parts is necessary for design continuity and long-term supply chain planning.

Substiute Parts

TNETV6446AINZWT8

Texas InstrumentsIn Stock: 827TNETV6446AINZWT8 Datasheet

Current PartRFQ

TMS320DM6446BZWT

Texas InstrumentsIn Stock: 2165TMS320DM6446BZWT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TNETV6446AINZWT8 is determined by the following critical parameters:

• Package Compatibility: Identical 361-LFBGA (361-NFBGA 16x16) surface mount package
• Series Alignment: Same TMS320DM644x DaVinci™ series family
• Interface Support: Matching ASP, EBI/EMI, Host Interface, I2C, SPI, UART, and USB interfaces
• Memory Configuration: Equivalent 160kB on-chip RAM and 8kB ROM
• Voltage Specifications: Compatible I/O voltage levels (1.8V, 3.3V) and core voltage operation
• Environmental Ratings: Operating temperature range 0°C ~ 85°C (TC)
• Compliance Standards: ROHS3 compliance and MSL 3 rating

The TMS320DM6446BZWT qualifies as a substitute based on these parameters, though with performance and product status differences noted below.

Parameter Comparison

Engineering Selection Recommendations

The TNETV6446AINZWT8 is designated Last Time Buy, indicating imminent discontinuation. The TMS320DM6446BZWT is classified as Not For New Designs, reflecting its earlier lifecycle stage within the same product family.

Both parts maintain ROHS3 compliance and identical MSL 3 ratings, ensuring equivalent environmental handling and regulatory standing. The primary differences are clock frequency specifications (810MHz/405MHz versus 594MHz/297MHz DSP/ARM respectively) and core voltage (1.30V versus 1.20V).

Selection between these parts depends on application performance requirements. The TNETV6446AINZWT8 provides higher processing performance, while the TMS320DM6446BZWT operates at reduced clock rates with lower core voltage consumption. Both support identical interface configurations and memory architecture.

Frequently Asked Questions (FAQ)

Q: Can the TMS320DM6446BZWT directly replace the TNETV6446AINZWT8 in existing designs?

A: Physical and electrical compatibility is established through identical package geometry (361-LFBGA), matching interface support, equivalent memory configuration, and compatible voltage specifications. However, the reduced clock frequencies (594MHz DSP / 297MHz ARM versus 810MHz / 405MHz) may impact application performance. Design validation is required to confirm functional equivalence for specific use cases.

Q: Are there package compatibility concerns between these parts?

A: Both parts use the identical 361-LFBGA (361-NFBGA 16x16) surface mount package. PCB layout, footprint, and mounting procedures remain unchanged.

Q: What is the significance of the product status designations?

A: Last Time Buy indicates the TNETV6446AINZWT8 is in final production phase with limited availability. Not For New Designs indicates the TMS320DM6446BZWT is no longer recommended for new product development. Both statuses reflect end-of-life positioning within the product family.

Q: Are compliance certifications equivalent between these parts?

A: Both parts maintain ROHS3 compliance and identical Moisture Sensitivity Level (MSL 3, 168 Hours) ratings, ensuring equivalent regulatory and environmental handling requirements.

Q: What are the core voltage differences, and do they affect system design?

A: The TNETV6446AINZWT8 operates at 1.30V core voltage, while the TMS320DM6446BZWT operates at 1.20V. Both support identical I/O voltage levels (1.8V, 3.3V). Power supply design may require adjustment based on the selected part's core voltage specification.