TMS320C6748EZWT3 TI TMS320C674x Floating/Fixed-Point DSP 300MHz SATA LCD VPIF DDR2 EMAC USB NFBGA-361 Industrial

TMS320C6748EZWT3 Product Overview

The TMS320C6748EZWT3 is a flagship 32-bit floating/fixed-point digital signal processor (DSP) from Texas Instruments (TI), based on the TMS320C674x core in a 361-lead NFBGA (ZWT) package, running at 300MHz. Positioned within the C6748 family for industrial applications requiring full peripheral integration, large-capacity local storage, and stringent power and temperature requirements, the TMS320C6748EZWT3 integrates 384KB of L2 unified mapped RAM/cache (flexibly configurable), along with 32KB L1 program cache and 32KB L1 data cache, providing ample high-speed storage for complex algorithms, real-time operating systems, and multimedia frameworks. The TMS320C6748EZWT3 offers comprehensive peripheral and interconnect resources: a 16-bit DDR2 EMIF provides up to 1600Mbps of external memory bandwidth, and a 16-bit EMIFA expands to NAND/NOR Flash; a 10/100 EMAC supports standard Ethernet communication; USB 2.0 OTG and USB 1.1 OHCI Host offer flexible connectivity to USB drives, audio devices, or Bluetooth adapters; the SATA controller of the TMS320C6748EZWT3 supports a 1.5Gbps SATA-I interface for connecting 2.5-inch HDDs or SSDs, enabling massive local data storage. The video and display subsystem of the TMS320C6748EZWT3 includes an integrated LCD controller and Video Port Interface (VPIF), capable of directly driving TFT displays and connecting to image sensors. Additionally, the TMS320C6748EZWT3 provides 3 McASPs, 2 SPIs, 2 I2Cs, 3 UARTs, and a universal parallel port (uPP) for ample interfaces for audio and high-speed data interaction; eCAP and eQEP meet industrial motion control needs. Leveraging the C674x core's Very Long Instruction Word (VLIW) architecture, the TMS320C6748EZWT3 delivers up to 1800 MFLOPS of floating-point performance and 2400 MIPS of fixed-point performance at 300MHz, and complies with industrial-grade wide-temperature standards, making the TMS320C6748EZWT3 the ideal core for high-end audio processing, intelligent video analysis, industrial automation, medical imaging, and storage-intensive embedded systems.

TMS320C6748EZWT3 Core Features

Processor Core: The TMS320C6748EZWT3 features a TMS320C674x floating/fixed-point VLIW DSP core, up to 300MHz, delivering 2400 MIPS / 1800 MFLOPS

On-Chip Memory: The TMS320C6748EZWT3 provides 32KB L1P cache + 32KB L1D cache + 384KB L2 unified mapped RAM/cache (configurable)

DDR2 EMIF: The TMS320C6748EZWT3 includes a 16-bit DDR2-300 interface, up to 1600Mbps, supporting up to 256MB external SDRAM

EMIFA: The TMS320C6748EZWT3 offers a 16-bit asynchronous external memory interface, supporting NAND/NOR Flash, SRAM, etc.

SATA Controller: The TMS320C6748EZWT3 integrates a 1.5Gbps SATA-I interface, directly connectable to HDD or SSD for large-capacity local storage

Network Interface: The TMS320C6748EZWT3 includes a 10/100 Ethernet MAC (EMAC), supporting MII/RMII interfaces

USB: The TMS320C6748EZWT3 provides USB 2.0 OTG (High-Speed) + USB 1.1 OHCI Host, connecting to various USB devices

Display & Video Interfaces: The TMS320C6748EZWT3 features an integrated LCD controller (supports TFT/LCD panels) + Video Port Interface (VPIF) for image sensors or video decoders

Audio & Serial Interfaces: The TMS320C6748EZWT3 offers 3× McASP, 2× SPI, 2× I2C, 3× UART, all with DMA support; Universal Parallel Port (uPP)

Control Peripherals: The TMS320C6748EZWT3 includes eCAP capture module, eQEP quadrature encoder interface, and 3× 64-bit general-purpose timers

Power & Package: The TMS320C6748EZWT3 operates with core voltage 1.2V and I/O voltage 3.3V/1.8V, in a 361-lead NFBGA (ZWT) package, with industrial temperature range

TMS320C6748EZWT3 Applications

Industrial Machine Vision: The TMS320C6748EZWT3 excels in industrial inspection cameras, robot vision guidance, and conveyor belt item recognition systems

Professional Audio & Broadcast: The TMS320C6748EZWT3 is ideal for digital audio matrices, broadcast-grade effects, multi-channel recording systems, and instrument modeling processors

Industrial Automation & HMI: The TMS320C6748EZWT3 supports servo drives with LCD display, industrial touchscreen controllers, and embedded data acquisition and display terminals

Medical Instruments: The TMS320C6748EZWT3 is used in portable ultrasound diagnostic equipment, endoscope image processing, multi-parameter patient monitors, and biosignal analysis platforms

Storage-Intensive Embedded Systems: The TMS320C6748EZWT3 powers data recorders, audio/video streaming servers, and industrial IoT edge gateways (utilizing SATA for large-capacity storage)

TMS320C6748EZWT3 Key Advantages

Industrial-Grade Wide Temperature & High Reliability: The TMS320C6748EZWT3 meets industrial temperature standards, operating reliably in harsh environments from -40°C to +105°C, making it ideal for outdoor equipment, factory automation, and automotive auxiliary systems.

Flagship Peripheral Integration & SATA Storage: At 300MHz with optimal energy efficiency, the TMS320C6748EZWT3 retains full high-end peripherals including 384KB L2 RAM, SATA controller, LCD, and VPIF, enabling direct connection to HDDs or SSDs for massive local data storage.

Floating/Fixed-Point Dual Processing: The TMS320C6748EZWT3's 300MHz clock delivers 1800 MFLOPS floating-point and 2400 MIPS fixed-point computing power, efficiently handling audio effects, image processing, and real-time control algorithms within a single chip.

Rich Networking & USB Connectivity: The TMS320C6748EZWT3's EMAC provides standard Ethernet access, while USB 2.0 OTG and USB 1.1 Host flexibly connect to USB drives, Wi-Fi modules, Bluetooth adapters, or USB audio devices, meeting diverse communication needs.

Multi-Channel Audio & High-Speed Parallel Data: Three McASPs on the TMS320C6748EZWT3 can simultaneously handle multiple independent audio streams, and the uPP provides a direct connection to FPGAs or high-speed ADCs/DACs, suitable for software-defined radio, high-speed data acquisition, and professional audio systems.

Complete Industrial Control Interfaces: The TMS320C6748EZWT3's eQEP directly interfaces with incremental encoders, and eCAP precisely measures pulse parameters—combined with powerful DSP computation, they easily enable high-performance servo drives and motion control.

Mature Development Ecosystem: The TMS320C6748EZWT3 is supported by free Code Composer Studio (CCS) IDE and DSP/BIOS real-time operating system, along with extensive application notes and reference designs, enabling rapid progress from prototype verification to production.

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FAQ

1. How does the TMS320C6748EZWT3 differ from the TMS320C6748EZCEA3?
   
   • The TMS320C6748EZWT3 runs at 300MHz, while the EZCEA3 runs at 456MHz, with the latter providing higher floating/fixed-point processing performance.
   • The T3 suffix of the TMS320C6748EZWT3 indicates an industrial temperature range (-40°C to +105°C), while the A3 version may target a narrower commercial range. Both share identical peripherals and L2 RAM capacity.
   • Choose the TMS320C6748EZWT3 for industrial wide-temperature compliance with optimal energy efficiency; choose the A3 for maximum computational throughput.
2. What floating- and fixed-point performance can be expected from the TMS320C6748EZWT3 at 300MHz?
   
   • At 300MHz, the TMS320C6748EZWT3's C674x core delivers up to 1800 MFLOPS of single-precision floating-point performance and 2400 MIPS of fixed-point instruction throughput.
   • With the VLIW architecture of the TMS320C6748EZWT3 executing up to 8 instructions per cycle, it is well-suited for mixed workloads including FFT, digital filtering, image processing, and real-time control.
3. What are the practical benefits of the industrial temperature range of the TMS320C6748EZWT3?
   
   • The TMS320C6748EZWT3's industrial-grade rating typically operates over a junction temperature range of -40°C to +105°C, which is wider than commercial-grade (0°C to +90°C).
   • This enables the TMS320C6748EZWT3 to run reliably in outdoor equipment, non-air-conditioned factory environments, and automotive auxiliary systems, significantly improving system reliability.
4. What can the SATA interface of the TMS320C6748EZWT3 be used for? Is the speed sufficient?
   
   • The SATA controller of the TMS320C6748EZWT3 supports a 1.5Gbps SATA-I interface, directly connecting to 2.5-inch HDDs, SSDs, or CFast cards.
   • It is suitable for large-capacity data recording, audio/video file storage, local database caching, and more, greatly expanding the storage boundaries of embedded DSPs.
5. What can the LCD controller and VPIF on the TMS320C6748EZWT3 be used for?
   
   • The LCD controller of the TMS320C6748EZWT3 directly drives TFT color LCD panels, enabling embedded human-machine interfaces without external display chips.
   • The VPIF of the TMS320C6748EZWT3 receives digital video streams from CMOS cameras or video decoders for image capture, machine vision, and video analysis.
6. What capacity does the DDR2 EMIF of the TMS320C6748EZWT3 support?
   
   • The 16-bit DDR2 EMIF of the TMS320C6748EZWT3 supports up to 256MB of external DDR2 SDRAM, with an interface speed of 300MHz (DDR2-600), providing up to 1600Mbps theoretical bandwidth.
   • This capacity and bandwidth provide ample headroom for audio/video processing, image frame buffering, and large program execution.
7. What audio interfaces does the TMS320C6748EZWT3 support? How many audio channels can be connected simultaneously?
   
   • The TMS320C6748EZWT3 provides 3 multi-channel audio serial ports (McASP), all supporting I2S, TDM, and other formats, directly connectable to audio ADCs/DACs/Codecs.
   • Each McASP on the TMS320C6748EZWT3 can carry multiple serial data channels, enabling the system to handle multiple independent audio streams simultaneously, meeting the demands of professional multi-channel recording and audio matrix applications.
8. What tools and software are needed for developing with the TMS320C6748EZWT3?
   
   • Use TI's free Code Composer Studio (CCS) IDE for development and debugging of the TMS320C6748EZWT3.
   • Hardware debuggers such as the XDS100 or XDS200 series are recommended, supporting JTAG in-circuit programming and real-time debugging of the TMS320C6748EZWT3.
   • TI provides extensive C674x DSP libraries, including FFT, filtering, and image processing functions, to quickly build algorithm prototypes for the TMS320C6748EZWT3.
9. Is the NFBGA-361 package of the TMS320C6748EZWT3 difficult to solder?
   
   • The NFBGA-361 package of the TMS320C6748EZWT3 is a ball grid array package; professional reflow soldering processes and X-ray inspection equipment are recommended to ensure soldering reliability.
   • Following TI's recommended land pattern and reflow profile, production yields for the TMS320C6748EZWT3 can be reliably maintained.
10. What are the upgrade options if I need higher DSP performance than the TMS320C6748EZWT3?
    
    • Within the same family, consider the TMS320C6748EZCEA3 (456MHz) for higher computational performance than the TMS320C6748EZWT3.
    • For ARM+DSP heterogeneous processing, consider TI's OMAP-L138 or the 66AK2Gx series.