TMS320DM6446ZWT Equivalent & Substitute Parts

Part Overview

The TMS320DM6446ZWT is a Digital Media System-on-Chip (DMSoC) from Texas Instruments' TMS320DM644x DaVinci™ series. This embedded integrated circuit integrates a 594MHz DSP core with a 297MHz ARM® processor, designed for multimedia and video processing applications. The device is currently classified as Obsolete, necessitating identification of equivalent substitute components for ongoing system support and new design considerations.

Substiute Parts

TMS320DM6446ZWT

Texas InstrumentsIn Stock: 2137TMS320DM6446ZWT Datasheet

Current PartRFQ

TMS320DM6446AZWT

Texas InstrumentsIn Stock: 2223TMS320DM6446AZWT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TMS320DM6446ZWT is determined by strict equivalence across the following critical parameters:

• Processor architecture and clock rates (594MHz DSP, 297MHz ARM®)
• Memory configuration (160kB on-chip RAM, 8kB ROM)
• Power supply requirements (1.20V core, 1.8V/3.3V I/O)
• Interface specifications (ASP, EBI/EMI, Host Interface, I2C, SPI, UART, USB)
• Package form factor (361-LFBGA, 361-NFBGA 16x16)
• Operating temperature range (0°C ~ 85°C)
• Compliance certifications (ROHS3, REACH Unaffected)

The TMS320DM6446AZWT meets all these criteria and is classified as a direct substitute within the TMS320DM644x series.

Parameter Comparison

Engineering Selection Recommendations

The TMS320DM6446AZWT serves as a direct functional equivalent to the TMS320DM6446ZWT. Both devices share identical electrical specifications, interface configurations, and package geometries. The primary distinction lies in product lifecycle status: the original TMS320DM6446ZWT is classified as Obsolete, while the TMS320DM6446AZWT carries a Not For New Designs designation.

For existing systems requiring component replacement, the TMS320DM6446AZWT provides electrical and mechanical compatibility. Both devices maintain ROHS3 compliance and identical moisture sensitivity specifications, ensuring consistency with established supply chain and manufacturing processes.

Frequently Asked Questions (FAQ)

Q: Are the TMS320DM6446ZWT and TMS320DM6446AZWT pin-compatible?

A: Yes. Both devices utilize the 361-LFBGA package with 361-NFBGA (16x16) supplier configuration, ensuring identical pinout and PCB footprint compatibility.

Q: What is the difference between these two part numbers?

A: The devices are electrically and functionally identical. The difference is reflected in product lifecycle status: TMS320DM6446ZWT is Obsolete, while TMS320DM6446AZWT is Not For New Designs. The TMS320DM6446AZWT may have different packaging (Tray vs. unspecified).

Q: Can I use TMS320DM6446AZWT as a direct replacement in existing designs?

A: Yes, the TMS320DM6446AZWT is a direct substitute. Identical core voltage (1.20V), I/O voltage (1.8V, 3.3V), clock rates (594MHz DSP, 297MHz ARM®), memory configuration (160kB RAM, 8kB ROM), and interface specifications ensure functional equivalence.

Q: Are there any compliance differences between these parts?

A: No. Both devices are ROHS3 compliant, REACH Unaffected, and carry identical moisture sensitivity levels (MSL 3, 168 Hours).

Q: What is the operating temperature range for both devices?

A: Both the TMS320DM6446ZWT and TMS320DM6446AZWT operate across 0°C to 85°C (TC).