TMS320DM6446ZWT

Digital Signal Processor Dsp Overview

The TMS320DM6446ZWT is a DaVinci Digital Media System-on-Chip manufactured by Texas Instruments. It integrates an ARM926EJ-S core operating at up to 297 MHz and a C64x+ DSP core running at up to 594 MHz. The device features 16 kB of data RAM, 8 kB of data ROM, and L1 caches comprising 16/32 kB instruction memory and 8/80 kB data memory. It operates on a 1.2 V core voltage with 1.8 V or 3.3 V I/O voltages. Packaged in a 361-pin NFBGA (16x16 mm) for surface mount installation, it supports fixed-point processing and interfaces including Ethernet, USB, UART, I2C, and SPI.

Digital Signal Processor Dsp Feature Summary

• Dual-core architecture combining ARM926EJ-S and C64x+ DSP cores
• Maximum clock frequencies of 297 MHz (ARM) and 594 MHz (DSP)
• Integrated L1 caches: 16/32 kB instruction and 8/80 kB data memory
• Supports H.264 video encoding via Codec Engine mechanism

Digital Signal Processor Dsp Applications

• H.264 video encoding systems
• Real-time digital video surveillance
• Digital media processing platforms

Digital Signal Processor Dsp Procurement Notes

Verify component status as the TMS320DM6446 series is listed as obsolete in multiple distributor records. Confirm availability through authorized channels or secondary markets. Check RoHS compliance details and moisture sensitivity level (MSL 3) prior to procurement. Ensure ECAD models are compatible with current design tools.

Digital Signal Processor Dsp Selection Notes

Select this model for applications requiring heterogeneous dual-core processing for video codecs. The ARM core handles I/O and OS tasks while the DSP executes complex algorithms. Verify that the 361-NFBGA package fits the PCB layout constraints. Consider power requirements for 1.2 V core and 1.8/3.3 V I/O domains during system design.

Digital Signal Processor Dsp Part Context

The TMS320DM6446ZWT belongs to the TMS320DM644x series within the DaVinci family. It is designed specifically for digital video applications, offering integrated processors, software tools, and support to simplify development. Variants such as DM6446ANB6C2127VC share similar specifications but may differ in suffix codes indicating temperature range or packaging details.

Digital Signal Processor Dsp Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The TMS320DM6446 series is marked as obsolete; engineers should consult Texas Instruments for migration guides or newer equivalents suitable for long-term production.