TMX320DM6446DZWTA

Digital Signal Processor Dsp Overview

The TMX320DM6446DZWTA is a military-grade variant of the TMS320DM6446 DaVinci Digital Media System-on-Chip manufactured by Texas Instruments. It integrates an ARM926EJ-S core operating at up to 594 MHz and a C64x+ DSP core running at up to 297 MHz. The device features 16 kB data RAM, L1 instruction and data caches, and supports 1.2 V core voltage with 1.8 V/3.3 V I/O levels. Packaged in a 361-pin NFBGA, it operates within a temperature range of -55°C to +125°C, designed for fixed-point digital signal processing applications requiring extended environmental tolerance.

Digital Signal Processor Dsp Feature Summary

• Dual-core architecture combining ARM926EJ-S (594 MHz) and C64x+ DSP (297 MHz)
• Military-grade temperature rating (-55°C to +125°C)
• Integrated video codec engine supporting H.264, MPEG-4, and JPEG
• On-chip memory including 16 kB data RAM and flexible L1/L2 cache allocation

Digital Signal Processor Dsp Applications

• Military surveillance systems
• Ruggedized video conferencing terminals
• Aviation ground control interfaces
• Defense communication equipment

Digital Signal Processor Dsp Part Context

This component belongs to the TMS320DM6446 family within the TI DaVinci platform. The 'TMX' prefix denotes the military temperature grade, distinguishing it from commercial variants like the TMS320DM6446AZWT. It shares the same functional specification as the standard DM6446 series but meets stricter reliability standards for harsh environments.

Digital Signal Processor Dsp Replacement Considerations

Direct replacements include other military-grade variants within the DM6446 family, such as TMX320DM6446BZWT or TMX320DM6446CZWT, which offer different speed grades or packaging options while maintaining the same pinout and functionality.