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Texas Instruments TNETV6446AINZWT
- Part No.:
- TNETV6446AINZWT
- Manufacturer:
- Texas Instruments
- Category:
- DSP (Digital Signal Processors)
- Package:
- 361-LFBGA
- Datasheet:
-
TNETV6446AINZWT.pdf
- Description:
- DAVINCI DIGITAL MEDIA SYSTEM-ON-
- Quantity:
- Payment:
- Shipping:
Inventory:4,475
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Product details
Overview
TNETV6446AINZWT from Texas Instruments is a dual-core digital media system-on-chip (SoC) integrating an ARM926EJ-S RISC processor (up to 405 MHz) and a C64x+ DSP core (up to 810 MHz), with 160 KB on-chip RAM, DDR2/EMIFA memory controllers, and a full video processing subsystem (VPSS) for real-time imaging capture and display. It targets networked media encode/decode in IP cameras and digital signage.
For engineers reviewing the TNETV6446AINZWT datasheet, TNETV6446AINZWT pinout, TNETV6446AINZWT application, or TNETV6446AINZWT equivalent, key selection criteria include its integrated VPFE/VPBE video front/back-end, 71 GPIOs with programmable interrupt modes, 10/100 Ethernet MAC with MDIO, USB 2.0 host/client PHY, and 361-pin ZWT BGA package with 0.8-mm ball pitch.
Technical Context
The TNETV6446AINZWT implements a tightly coupled ARM-DSP architecture where the ARM926EJ-S handles OS management, peripheral configuration, and high-level control, while the C64x+ DSP executes compute-intensive video algorithms at up to 6480 MIPS. Its VPSS includes a CCD/CMOS imager interface (CCDC), preview engine, histogram/H3A modules, resizer (1/4× to 4×), OSD engine (2 video + 2 OSD windows), and VENC with four 10-bit 54-MHz DACs.
Memory hierarchy comprises ARM-side 16 KB I-cache / 8 KB D-cache / 16 KB RAM / 8 KB ROM and DSP-side 32 KB L1P / 80 KB L1D / 64 KB L2 unified RAM/cache. Clocking uses dual PLLs supporting 27-MHz reference input with multipliers of ×22 (594-MHz DSP) or ×30 (810-MHz DSP); I/O voltage is 1.8 V/3.3 V, core is 1.3 V (810-MHz variant).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| DSP Core | C64x+ fixed-point, up to 810 MHz → delivers 6480 MIPS for H.264/MPEG-4 encode/decode acceleration |
| ARM Core | ARM926EJ-S, up to 405 MHz → runs Linux/RTOS, manages peripherals, and handles network stack |
| On-Chip RAM | 160 KB total (ARM + DSP combined) → enables low-latency firmware execution without external SRAM |
| Video Input | VPFE with CCDC, preview engine, histogram, H3A, resizer → supports raw Bayer/CCD/CMOS sensor interfaces and real-time preprocessing |
| Video Output | VPBE with OSD engine (2 video + 2 OSD windows) and VENC (4× 10-bit DACs @ 54 MHz) → drives NTSC/PAL composite, S-video, RGB888, or BT.656 digital output |
| Connectivity | 10/100 EMAC + MDIO, USB 2.0 host/client PHY, VLYNQ, HPI, SPI, I²C, 3× UART → enables embedded networking, host interfacing, and peripheral expansion |
| Package | 361-pin ZWT BGA, 16×16 mm, 0.8-mm pitch, SnAgCu finish → standard footprint for industrial media SoC PCB layout |
Pinout & Package
361-pin ZWT BGA package (16 mm × 16 mm, 0.8-mm ball pitch, Pb-free SnAgCu finish) with thermal pad. Pin functions defined per TI SPRS283H datasheet Section 2.6 (Pin Assignments) and Section 2.7 (Terminal Functions).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_DSP_1P2 | DSP Core Power Supply | 1.3-V supply for C64x+ core (810-MHz variant); requires low-noise regulation and local decoupling |
| VDD_ARM_1P2 | ARM Core Power Supply | 1.2-V supply for ARM926EJ-S (594/513-MHz variants); separate rail from DSP for independent power management |
| VDD_IO_1P8 | I/O Bank 1.8-V Supply | Powers DDR2, EMIFA, VPSS digital I/O; must be sequenced before VDD_IO_3P3 during power-up |
| VDD_IO_3P3 | I/O Bank 3.3-V Supply | Powers USB PHY, EMAC, UART, GPIO, SPI, I²C; compatible with standard logic level interfaces |
| CLKIN | Primary Clock Input | 27-MHz crystal or oscillator input feeding PLL1; determines all internal clock domains via ×22 or ×30 multiplication |
| ARM_IRQ | ARM Interrupt Request | Active-low signal indicating pending interrupt from DSP, VPSS, or peripherals; used for inter-processor synchronization |
| DSP_INT4 | DSP Interrupt Input | Configurable as general-purpose interrupt or VPSS event trigger (e.g., frame sync, DMA completion) |
| VPFE_VD0–VD9 | VPFE Data Bus (10-bit) | Captures YUV4:2:2 or raw Bayer data from video decoders or image sensors; timing-critical parallel interface |
| VPBE_VD0–VD23 | VPBE Data Bus (24-bit) | Drives RGB888 or BT.656 digital video output; supports HD resolution with separate HSYNC/VSYNC |
| USB_DP/USB_DM | USB 2.0 Differential Pair | Integrated PHY eliminates need for external transceiver; supports high/full/low-speed operation in host or client mode |
Key Features
| Feature | Design Value |
|---|---|
| Dual-core heterogeneous processing | ARM926EJ-S + C64x+ DSP enables concurrent OS execution and real-time video analytics without resource contention |
| Integrated Video Processing Subsystem (VPSS) | VPFE (CCDC + previewer + H3A + resizer) and VPBE (OSD + VENC) eliminate external video co-processors and reduce BOM cost |
| DDR2 + EMIFA memory controllers | 32-bit DDR2 controller (256 MB address space) and 16-bit asynchronous EMIF support NAND/NOR/CF/SD - enabling flexible, high-bandwidth storage |
| On-chip boot ROM and NAND support | ARM ROM bootloader (RBL) enables direct boot from NAND flash - simplifies firmware update and eliminates external boot PROM |
| 71 configurable GPIOs with event generation | Supports multiplexed peripheral functions (UART, PWM, timers) and custom I/O - ideal for camera sensor control and status monitoring |
Applications
| IP Camera System | Digital Signage Player |
|---|---|
Use Scenario: Real-time 720p video encoding with motion detection, ONVIF compliance, and PoE-powered edge deployment. IC Role / Device Role / Timing Role: TNETV6446AINZWT serves as the central media SoC - ARM handles RTSP streaming stack and web UI, DSP runs H.264 baseline profile encode, VPSS captures and preconditions sensor data. Use Value: Integrated VPFE/VPBE and EMAC eliminate discrete video ADC/DAC and PHY, reducing component count by ≥7 parts versus FPGA-based solutions. | Use Scenario: Commercial display driving multiple HDMI/RGB outputs with dynamic content switching and local storage playback. IC Role / Device Role / Timing Role: TNETV6446AINZWT acts as media playback engine - ARM loads assets from SD/CompactFlash, DSP decodes MPEG-2/AVC streams, VPBE generates synchronized RGB/YUV output. Use Value: 24-bit digital video output and dual OSD windows enable overlay of time/date, logos, and interactive menus without external graphics controller. |
| Networked Video Encoder | Industrial Vision Controller |
Use Scenario: Legacy analog CCTV upgrade using CVBS-to-IP conversion with remote configuration and firmware OTA updates. IC Role / Device Role / Timing Role: TNETV6446AINZWT functions as encoder SoC - VPFE digitizes NTSC/PAL via BT.656, DSP compresses to MJPEG/H.264, EMAC transmits over 100BASE-TX. Use Value: Integrated VENC DACs and EMAC with MDIO simplify hardware design - no external video DAC or Ethernet PHY required. | Use Scenario: Machine vision system performing real-time barcode reading, defect inspection, and I/O-triggered image capture in factory automation. IC Role / Device Role / Timing Role: TNETV6446AINZWT operates as vision coprocessor - VPFE ingests high-speed CMOS sensor data, histogram/H3A modules enable auto-exposure, DSP runs custom OpenCV kernels. Use Value: Hardware-accelerated preview engine and resizer allow sub-sampling and ROI extraction at full sensor frame rate - offloading 40%+ CPU cycles from ARM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital media SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS320DM365ZCE | ARM9 + HDVICP2 (H.264 BP/MP encode/decode), no C64x+ DSP, lower power (0.25 W), 276-pin PBGA | Targeted at cost-sensitive HD video encode only (no DSP algorithm flexibility); lacks VPFE preview engine and histogram module | Select when H.264 encode is primary requirement and custom DSP firmware is unnecessary |
| i.MX6DualLite | ARM Cortex-A9 dual-core (1 GHz), Vivante GC320 GPU, no integrated video front-end; requires external image sensor interface | Linux-centric multimedia platform with OpenGL ES support; lacks dedicated video capture pipeline (CCDC/previewer/H3A) | Select when GUI-rich applications dominate and video capture is handled by external bridge ICs |
Compared with TMS320DM365ZCE and i.MX6DualLite, TNETV6446AINZWT uniquely combines ARM9 control, C64x+ programmable DSP, and fully integrated VPFE/VPBE - making it the only option among the three that supports raw sensor preprocessing, real-time histogram analysis, and analog/digital video output without external components.
Availability
TNETV6446AINZWT is available at Aetrix Electronics and suitable for IP camera systems, digital signage players, and networked video encoders requiring stable component supply across extended product lifecycles.
Supply support for TNETV6446AINZWT 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, delivering analog and embedded processing solutions for industrial, automotive, and communications markets.
The TNETV6446AINZWT belongs to TI's DaVinci™ digital media SoC product line, designed specifically for embedded video applications requiring integrated ARM+DSP processing, real-time imaging pipelines, and connectivity - targeting IP surveillance, broadcast equipment, and intelligent vision systems.
FAQ
What is the maximum supported DDR2 data rate for TNETV6446AINZWT?
The TNETV6446AINZWT integrates a 32-bit DDR2 SDRAM memory controller supporting up to 256 MB address space and 1.8-V I/O. Per TI SPRS283H datasheet Section 6.10, it operates at DDR2-400 (200 MHz clock, 400 MT/s data rate) with configurable burst lengths and refresh timing - sufficient for sustained 720p30 video buffering and DSP coefficient storage.
Does TNETV6446AINZWT support booting directly from NAND flash?
Yes, TNETV6446AINZWT includes an on-chip ARM ROM bootloader (RBL) that supports NAND flash boot in both 8-bit and 16-bit configurations. The RBL initializes EMIFA, reads NAND ID, and loads the first-stage bootloader (UBL) from configured NAND pages - eliminating need for external boot PROM or SPI flash.
What video standards does the VPFE of TNETV6446AINZWT support for input capture?
The VPFE in TNETV6446AINZWT supports BT.601/BT.656 digital YCbCr 4:2:2 (8-/16-bit), raw Bayer pattern from CMOS/CCD sensors, and parallel digital interfaces compliant with CCIR.601. It does not support HDMI or MIPI CSI-2 inputs - those require external bridge ICs.
Can TNETV6446AINZWT generate analog video output without external DACs?
Yes, TNETV6446AINZWT's integrated Video Encoder (VENC) contains four 10-bit DACs operating at 54 MHz, enabling direct composite NTSC/PAL, S-video (Y/C), and component (YPbPr/RGB) analog output - no external DACs are required for standard-definition or enhanced-definition video generation.
What is the function of the VICP in TNETV6446AINZWT?
The Video/Imaging Co-processor (VICP) in TNETV6446AINZWT accelerates common video operations - including motion estimation, discrete cosine transform (DCT), quantization, and variable-length decoding - freeing C64x+ DSP cycles for application-specific algorithms. It is optimized for H.264 and MPEG-4 codecs but is not a standalone encoder/decoder; it requires DSP firmware coordination.
TNETV6446AINZWT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- TMS320DM644x, DaVinci™
- Package/Case:
- 361-LFBGA
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Type:
- Digital Media System-on-Chip (DMSoC)
- Interface:
- ASP, EBI/EMI, Host Interface, I2C, SPI, UART, USB
- Clock Rate:
- 594MHz DSP, 297MHz ARM®
- Non-Volatile Memory:
- ROM (8kB)
- On-Chip RAM:
- 160kB
- Voltage - I/O:
- 1.8V, 3.3V
- Voltage - Core:
- 1.20V
- Operating Temperature:
- 0°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 361-NFBGA (16x16)
TNETV6446AINZWT FAQ
1.How can I place an order for TNETV6446AINZWT through Aetrix?
Please submit a Request for Quotation (RFQ) for TNETV6446AINZWT 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 TNETV6446AINZWT reliable?
The price and inventory of TNETV6446AINZWT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TNETV6446AINZWT is usually 5 days.
3.What payment methods are accepted for TNETV6446AINZWT?
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4.How is shipping managed for TNETV6446AINZWT?
TNETV6446AINZWT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TNETV6446AINZWT 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 TNETV6446AINZWT?
For technical support, including TNETV6446AINZWT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TNETV6446AINZWT requirements.
6.How does Aetrix verify that TNETV6446AINZWT is sourced from the original manufacturer or authorized distributors?
All TNETV6446AINZWT 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 TNETV6446AINZWT meets industry standards.
7.What is the process for return or replacement of TNETV6446AINZWT?
All TNETV6446AINZWT units undergo pre-shipment inspection (PSI). If there is an issue with TNETV6446AINZWT, 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 TNETV6446AINZWT part is unused and in its original packaging.
Return procedure for TNETV6446AINZWT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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