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Texas Instruments TMS320DM6433ZWT7
- Part No.:
- TMS320DM6433ZWT7
- Manufacturer:
- Texas Instruments
- Category:
- DSP (Digital Signal Processors)
- Package:
- 361-LFBGA
- Datasheet:
-
TMS320DM6433ZWT7.pdf
- Description:
- IC DGTL MEDIA PROCESSOR 361NFBGA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TMS320DM6433ZWT7 from Texas Instruments is a fixed-point digital media processor based on the C64x+™ DSP core, operating at 700 MHz with 5600 MIPS performance, 32 KB L1P/80 KB L1D/128 KB L2 on-chip memory, and integrated Video Processing Subsystem (VPSS) supporting NTSC/PAL/S-Video/component analog output and BT.656 digital video. It targets real-time video encode/decode in embedded media systems.
For engineers reviewing the TMS320DM6433ZWT7 datasheet, TMS320DM6433ZWT7 pinout, TMS320DM6433ZWT7 application, or TMS320DM6433ZWT7 equivalent, key selection considerations include its 361-pin PBGA (ZWT) package, DDR2 SDRAM controller, VPBE with four 54-MHz DACs, EMAC with MDIO, and support for 111 GPIOs multiplexed with McBSP, McASP, I²C, UART, and PCI interfaces.
Technical Context
The TMS320DM6433ZWT7 implements an eight-functional-unit C64x+™ VLIW DSP core with six ALUs and two multipliers, enabling up to eight 8-bit MACs/cycle (5600 MMACS). Its memory subsystem includes configurable L1P/L1D caches and unified L2 RAM/cache, all programmable via dedicated cache control registers (e.g., L1PCFG at 0x01840020).
Hardware acceleration is provided by the Video Processing Subsystem (VPSS), comprising a resizer (1/4× to 4× scaling with independent horizontal/vertical control) and Video Processing Back-End (VPBE) with On-Screen Display engine (2 video + 2 OSD windows) and Video Encoder (four 10-bit DACs, BT.656/YUV/RGB digital output). The device also integrates a 32-bit DDR2 SDRAM controller (up to 333-MHz data rate), asynchronous EMIFA, EMAC with MII/MDIO, and VLYNQ FPGA interface.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C64x+™ VLIW DSP with 8 functional units, 64 × 32-bit registers, and VelociTI.2™ extensions for video acceleration |
| Clock Rate | 700 MHz (–7 speed grade), 1.43-ns instruction cycle time, 5600 MIPS peak performance |
| On-Chip Memory | 32 KB L1P program RAM/cache, 80 KB L1D data RAM/cache, 128 KB unified L2 RAM/cache, 64 KB boot ROM |
| Video Output | VPBE with four 54-MHz 10-bit DACs for composite NTSC/PAL, S-Video, YPbPr/RGB analog; plus 8-/16-bit BT.656 or 24-bit RGB digital output |
| Memory Interfaces | 32-bit DDR2 SDRAM controller (1.8-V I/O, 256 MB address space); 8-bit asynchronous EMIFA (64 MB address reach) |
| Peripherals | EMAC with MII/MDIO, 1× I²C, 1× UART (RTS/CTS), 1× McBSP, 1× McASP (4 serializers), 1× 16-bit HPI, 1× PCI (33 MHz), 3× PWM, 2× 64-bit timers |
| Package | 361-pin Pb-free PBGA (ZWT suffix), 16 × 16 mm body, 0.8-mm ball pitch, RoHS-compliant |
Pinout & Package
361-pin PBGA (ZWT) package with 0.8-mm ball pitch, thermal pad exposed on underside, compatible with standard reflow profiles for 0.09-µm CMOS process. Pin functions are fully multiplexed across 111 GPIOs supporting peripheral modes including McASP, McBSP, I²C, UART, EMAC, and VPSS signals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA_1P1V | Analog supply for VPBE DACs | 1.1-V regulated analog rail required for 10-bit video DAC accuracy and SNR |
| CLKIN / MXI | External clock input | Accepts 27-MHz reference; PLL multiplies to generate 700-MHz CPU clock (x25.9) |
| DDR2_DQ[31:0] | Data bus for DDR2 SDRAM | 32-bit bidirectional interface supporting DDR2-400 (333-MHz data rate), 256-MB address space |
| VPBE_VID[23:0] | Digital video output bus | 24-bit parallel output supporting BT.656 (8/16-bit YUV) or RGB888 (24-bit) timing and sync signals |
| EMAC_MDIO | Management Data I/O | Open-drain bidirectional interface for PHY auto-negotiation and register access per IEEE 802.3u |
Key Features
| Feature | Design Value |
|---|---|
| VPSS Resizer | Independent horizontal/vertical scaling from 1/4× to 4× in 256/N steps (N = 64–1024), enabling real-time resolution conversion without CPU load |
| On-Screen Display Engine | Supports 2 video windows + 2 OSD windows with alpha blending up to 8 levels, reducing external graphics overlay hardware |
| C64x+ Cache Architecture | L1P/L1D/L2 configurable as RAM or cache; L2 allocation registers (L2ALLOC0–3) enable deterministic memory partitioning for real-time video buffers |
| EDMA3 Controller | 64 independent channels with QDMA support, enabling zero-CPU-overhead data movement between DDR2, L2, and peripherals like McASP/VPBE |
| Flexible Power Domains | Separate 1.2-V core, 1.8-V/3.3-V I/O, and 1.1-V analog supplies allow selective power gating of VPBE, DDR2, or EMAC during low-power operation |
Applications
| IP Camera Video Encoder | DVR Front-End Processing |
|---|---|
Use Scenario: Real-time H.264 encoding of 720p@30fps video streams with on-screen timestamp and motion detection overlay. IC Role / Device Role / Timing Role: TMS320DM6433ZWT7 serves as the primary video processing engine, executing encoder algorithms while VPBE overlays metadata onto analog CVBS output. Use Value: Integrated VPBE eliminates need for external video encoder IC; EDMA3 enables concurrent capture, encode, and display with <50 µs latency. | Use Scenario: Multi-channel video acquisition from 4 analog cameras with simultaneous encode, storage, and local preview. IC Role / Device Role / Timing Role: TMS320DM6433ZWT7 acts as the central media processor, managing DDR2 frame buffers, running resizer for preview downscaling, and driving BT.656 output to LCD controller. Use Value: L1D/L2 memory hierarchy supports dual-frame buffering per channel; resizer provides 1/4× preview without CPU intervention. |
| Networked Media Player | Automotive Infotainment Display |
Use Scenario: Streaming MPEG-4 video over Ethernet with audio decode and HDMI-ready RGB888 output. IC Role / Device Role / Timing Role: TMS320DM6433ZWT7 decodes compressed video/audio, routes digital video via VPBE to external HDMI transmitter, and manages network stack via EMAC. Use Value: 24-bit RGB digital output meets HDMI 1.3 color depth requirements; EMAC+MDIO enables plug-and-play PHY detection. | Use Scenario: In-vehicle rear-seat entertainment system generating NTSC video for seatback displays and audio via McASP. IC Role / Device Role / Timing Role: TMS320DM6433ZWT7 processes video content, generates composite NTSC using VPBE DACs, and drives stereo audio through McASP to codec. Use Value: Four integrated 54-MHz DACs meet NTSC linearity specs (EN 55032 Class B); McASP supports I²S/TDM for multi-zone audio routing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital media processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS320DM6437ZWT7 | Higher clock rate (720 MHz), larger L2 (256 KB), additional McASP serializer, no PCI interface | Better suited for HD encode/decode requiring >5600 MIPS and >128 KB L2 buffer space | Select when higher throughput and larger on-chip memory are required; not pin-compatible due to different peripheral mapping |
| TMS320DM642ZWT7 | Lower clock rate (600 MHz), smaller L2 (64 KB), no DDR2 controller, only one 10-bit DAC, no VPBE OSD engine | Targeted at SD video applications without on-screen display or high-resolution digital output | Choose for cost-sensitive SD video systems where VPBE features and DDR2 bandwidth are unnecessary |
Compared with TMS320DM6437ZWT7, the TMS320DM6433ZWT7 trades raw performance and memory for VPBE integration and PCI support; versus TMS320DM642ZWT7, it adds DDR2, full VPBE, and enhanced video I/O-making it optimal for mid-tier embedded video systems requiring analog/digital output flexibility without premium cost.
Availability
TMS320DM6433ZWT7 is available at Aetrix Electronics and suitable for IP camera video encoding, DVR front-end processing, networked media players, and automotive infotainment displays requiring stable component supply and long-term industrial availability.
Supply support for TMS320DM6433ZWT7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, specializing in analog, embedded processing, and digital signal processing technologies with over 50 years of innovation in high-performance computing and signal integrity.
The TMS320DM6433ZWT7 belongs to TI's C6000™ Digital Signal Processor platform, designed specifically for real-time video and imaging applications in resource-constrained embedded systems where deterministic processing, integrated video I/O, and power efficiency are critical.
FAQ
What is the maximum DDR2 SDRAM data rate supported by the TMS320DM6433ZWT7?
The TMS320DM6433ZWT7 supports a DDR2 SDRAM data rate up to 333 MHz (DDR2-400), interfacing via its 32-bit synchronous memory controller with 1.8-V I/O voltage. This enables a theoretical peak bandwidth of 1.3 GB/s, sufficient for dual-stream 720p video buffering. The controller includes programmable timing parameters and supports 256 MB of addressable space, directly accessible by the C64x+™ core and EDMA3 channels without software intervention.
Does the TMS320DM6433ZWT7 support little-endian mode only?
Yes, the TMS320DM6433ZWT7 supports little-endian mode exclusively - it does not implement big-endian configuration. This is a fixed architectural trait of the C64x+™ core used in the device, confirmed in the SPRS343C datasheet Section 1.1. All memory-mapped peripherals, cache lines, and DMA transfers adhere to little-endian byte ordering, which must be accounted for in firmware development, bootloader design, and data structure alignment for video buffers and network packets.
How many video output formats does the VPBE in the TMS320DM6433ZWT7 support?
The Video Processing Back-End (VPBE) in the TMS320DM6433ZWT7 supports three analog formats - composite NTSC/PAL, S-Video (Y/C), and component (YPbPr or RGB progressive) - plus digital BT.656 (8-/16-bit YUV) and RGB888 (24-bit) outputs. These are enabled simultaneously via separate pin groups: four 10-bit DACs drive analog outputs, while VPBE_VID[23:0] carries digital video with programmable sync polarity and timing. No external encoder IC is needed for any of these formats.
What is the function of the SPLOOP buffer in the TMS320DM6433ZWT7 CPU?
The SPLOOP buffer in the TMS320DM6433ZWT7 is a small instruction buffer within the C64x+™ CPU that accelerates software-pipelined loops by storing loop iterations for parallel execution. It reduces code size overhead associated with manual pipelining and ensures full interruptibility - critical for real-time video processing tasks such as motion estimation or DCT computation where deterministic latency is required. SPLOOP is transparent to software and managed automatically by the compiler and CPU hardware.
Can the TMS320DM6433ZWT7 operate with both 1.2-V and 1.05-V core voltages?
No - the TMS320DM6433ZWT7 is specified for 1.2-V core voltage only, as indicated by its "–7" speed grade suffix and confirmed in Table 2-1 of SPRS343C. While other DM6433 variants (e.g., –L or –5) support 1.05-V operation, the ZWT7 package variant requires 1.2-V CVDD for guaranteed 700-MHz operation and thermal stability. Using 1.05 V would violate electrical specifications and result in undefined behavior or functional failure.
TMS320DM6433ZWT7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- TMS320DM643x, DaVinci™
- Package/Case:
- 361-LFBGA
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- Type:
- Fixed Point
- Interface:
- HPI, I2C, McASP, McBSP, PCI, UART, 10/100 Ethernet MAC
- Clock Rate:
- 700MHz
- Non-Volatile Memory:
- ROM (64kB)
- On-Chip RAM:
- 240kB
- Voltage - I/O:
- 1.8V, 3.3V
- Voltage - Core:
- 1.20V
- Operating Temperature:
- 0°C ~ 90°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 361-NFBGA (16x16)
TMS320DM6433ZWT7 FAQ
1.How can I place an order for TMS320DM6433ZWT7 through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320DM6433ZWT7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TMS320DM6433ZWT7 reliable?
The price and inventory of TMS320DM6433ZWT7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320DM6433ZWT7 is usually 5 days.
3.What payment methods are accepted for TMS320DM6433ZWT7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320DM6433ZWT7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320DM6433ZWT7?
TMS320DM6433ZWT7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320DM6433ZWT7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TMS320DM6433ZWT7?
For technical support, including TMS320DM6433ZWT7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320DM6433ZWT7 requirements.
6.How does Aetrix verify that TMS320DM6433ZWT7 is sourced from the original manufacturer or authorized distributors?
All TMS320DM6433ZWT7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TMS320DM6433ZWT7 meets industry standards.
7.What is the process for return or replacement of TMS320DM6433ZWT7?
All TMS320DM6433ZWT7 units undergo pre-shipment inspection (PSI). If there is an issue with TMS320DM6433ZWT7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TMS320DM6433ZWT7 part is unused and in its original packaging.
Return procedure for TMS320DM6433ZWT7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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