Texas Instruments TMS320DM648ZUT1

Overview

TMS320DM648ZUT1 from Texas Instruments is a high-performance fixed-point digital media processor based on the C64x+™ DSP core, operating at 1.1 GHz (0.91 ns cycle time), featuring 512 KB L2 unified RAM/cache, five configurable 16-bit video ports, and dual SGMII Gigabit Ethernet interfaces. It targets real-time video encoding/decoding in broadcast infrastructure and IP-based surveillance systems.

For engineers reviewing the TMS320DM648ZUT1 datasheet, TMS320DM648ZUT1 pinout, TMS320DM648ZUT1 application, or TMS320DM648ZUT1 equivalent, key selection criteria include DDR2 SDRAM controller timing, video port pixel clock support up to 148.5 MHz, VIC-based audio/video synchronization, and 529-pin nFBGA (ZUT) package compatibility with industrial temperature range operation.

Technical Context

The TMS320DM648ZUT1 implements an eight-functional-unit C64x+™ VLIW DSP core with six ALUs and two multipliers, enabling up to 8800 MIPS and 8800 MMACS (eight 8-bit MACs/cycle). Its memory architecture includes 32 KB L1P direct-mapped cache, 32 KB L1D 2-way set-associative cache, and 512 KB L2 unified RAM/cache with flexible allocation between program and data space.

Peripheral integration includes a 3-port Ethernet switch subsystem with two SGMII ports, VCXO-interpolated control (VIC) for sub-sample jitter correction, five video ports supporting ITU-R BT.656 and SMPTE 274M standards, and dual external memory interfaces: 32-bit DDR2 SDRAM controller (1.8-V I/O) and 16-bit asynchronous EMIFA for Flash/SRAM.

Key Specifications

Pinout & Package

529-pin flip-chip plastic BGA (ZUT package), 19×19 mm, 0.8 mm pitch, 0.09-μm/6-level Cu metal CMOS process. Pinout validated per TI SPRS372H datasheet Section 2.5 (Pin Assignments) and Table 2-6 (Terminal Functions).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital media processor applications.

Compared with TMS320DM647ZUT1, the TMS320DM648ZUT1 delivers double L2 capacity and dual SGMII for scalable multi-stream encoding; versus AM5728, it offers deterministic real-time DSP performance at lower power and smaller footprint, but lacks ARM software ecosystem support.

Availability

TMS320DM648ZUT1 is available at Aetrix Electronics and suitable for broadcast infrastructure, IP-based surveillance systems, and intelligent traffic analytics requiring stable component supply, long-lifecycle assurance, and industrial temperature operation.

Supply support for TMS320DM648ZUT1 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, designing analog, embedded processing, and wireless chips for industrial, automotive, and communications markets.

The TMS320C6000™ platform-including the TMS320DM648ZUT1-is engineered for high-throughput, low-latency digital signal processing in video, imaging, and telecom infrastructure applications.

FAQ

What is the maximum DDR2 SDRAM data rate supported by the TMS320DM648ZUT1?

The TMS320DM648ZUT1 supports DDR2 SDRAM up to 400 MHz (800 Mbps data rate) with a 32-bit bus width, delivering up to 3.2 GB/s peak bandwidth. This is confirmed in Section 6.9 of the SPRS372H datasheet, which specifies tAC = 1.5 ns and tDQSQ = 0.25 ns timing parameters for DDR2-800 operation under industrial temperature conditions.

Does the TMS320DM648ZUT1 support little-endian or big-endian data format?

The TMS320DM648ZUT1 supports little-endian mode only, as explicitly stated in Section 1.3 of the SPRS372H datasheet. This architectural constraint affects memory-mapped peripheral register access, data packing in EDMA transfers, and interoperability with external big-endian devices such as certain FPGA configurations.

How many video standards does the TMS320DM648ZUT1 video port support?

The TMS320DM648ZUT1 video ports support CCIR601, ITU-R BT.656, BT.1120, SMPTE 125M, 260M, 274M, and 296M standards, as documented in Section 1.3 and Figure 1-1 of the SPRS372H datasheet. Each of the five ports can be independently configured for capture, display, or both modes.

What is the function of the VCXO Interpolated Control (VIC) port on the TMS320DM648ZUT1?

The VCXO Interpolated Control (VIC) port on the TMS320DM648ZUT1 provides sub-sample phase interpolation to align audio and video clocks across asynchronous sources. It accepts a VCXO reference and generates interpolated timing signals for precise synchronization in multi-channel broadcast encoders, eliminating external jitter cleaners.

Is the TMS320DM648ZUT1 pin-compatible with the TMS320DM647ZUT1?

Yes, the TMS320DM648ZUT1 is pin-compatible with the TMS320DM647ZUT1 in the 529-pin ZUT package, sharing identical pin assignments, power domains, and signal definitions per Section 2.5 of SPRS372H. The only hardware differences are internal: doubled L2 memory and addition of a second SGMII port, both enabled via configuration registers.