Texas Instruments TMS320C6747DZKB4

Overview

TMS320C6747DZKB4 from Texas Instruments is a fixed- and floating-point VLIW digital signal processor with 456-MHz C674x core, 448KB on-chip RAM (32KB L1P, 32KB L1D, 256KB L2, 128KB shared), 3 McASPs, USB 2.0 OTG + USB 1.1 OHCI, LCD controller, and 10/100 EMAC - deployed in professional audio systems requiring real-time multichannel audio processing and deterministic low-latency I/O.

For engineers reviewing the TMS320C6747DZKB4 datasheet, TMS320C6747DZKB4 pinout, TMS320C6747DZKB4 application, or TMS320C6747DZKB4 equivalent, key selection criteria include its 456-MHz floating-point throughput (2736 MFLOPS), dual SDRAM interfaces (EMIFA + EMIFB), PRUSS subsystem for offloading real-time tasks, and industrial-temperature-rated 256-ball PBGA (ZKB) package.

Technical Context

The TMS320C6747DZKB4 implements a load-store VLIW architecture with eight functional units (.M1/.M2 multiply, .L1/.L2 arithmetic/logic, .D1/.D2 load/store, .S1/.S2 shift/compare), 64 general-purpose 32-bit registers, and IEEE 754 SP/DP floating-point support - enabling four SP additions per cycle and two SP reciprocal approximations per cycle. Its memory subsystem integrates flexible cache/RAM partitioning across L1P, L1D, and unified 256KB L2.

Peripherally, it integrates three configurable McASPs supporting TDM/I²S/DIT, dual USB controllers (USB0 OTG + USB1 OHCI), 10/100 EMAC with RMII, HPI interface, RTC with 32-kHz oscillator, and PRUSS with two 32-bit RISC cores - all coordinated via a centralized switched central resource and power-management domain with clock gating.

Key Specifications

Pinout & Package

256-ball Pb-free plastic ball grid array (PBGA) package with 1.0-mm ball pitch, 17.0 mm × 17.0 mm body size, and industrial-temperature rating. Pin functions are multiplexed across peripherals including McASP, EMIF, USB, UART, SPI, I²C, GPIO, and JTAG.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar DSP applications.

Compared with TMS320C6747DZKB4, TMS320C6745PTP trades peripheral richness and peak performance for lower cost and simpler packaging, while OMAP-L138AZWT extends capability with an ARM9 coprocessor for hybrid control+DSP workloads - neither is pin-compatible, but OMAP-L138AZWT shares identical ZKB mechanical and electrical interface specifications.

Availability

TMS320C6747DZKB4 is available at Aetrix Electronics and suitable for professional audio mixers, networked soundbars, automotive infotainment systems, and industrial audio analytics gateways requiring stable component supply and long-term industrial-grade availability.

Supply support for TMS320C6747DZKB4 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 consumer markets.

The TMS320C6747DZKB4 belongs to TI's C6000™ DSP platform and was engineered specifically for low-power, high-fidelity audio and communications applications where floating-point precision, multichannel I/O, and real-time determinism are critical.

FAQ

What is the maximum operating frequency of the TMS320C6747DZKB4 and what voltage is required?

The TMS320C6747DZKB4 operates at up to 456 MHz when supplied with a 1.3-V core voltage (CVDD). At 1.2 V, its maximum frequency is 375 MHz. Both configurations are supported across the industrial temperature range (–40°C to 85°C), and the device includes internal PLL circuitry to generate required clock domains from a 24–48 MHz input crystal or oscillator.

Does the TMS320C6747DZKB4 support boot from NAND flash, and how is it configured?

Yes, the TMS320C6747DZKB4 supports NAND flash boot via its EMIFA interface. Boot configuration is controlled by strap pins (SYSBOOT[5:0]) during reset; setting SYSBOOT[5:0] = 0x0A selects NAND boot mode. The internal ROM bootloader initializes EMIFA, reads the first 128 KB from NAND, and executes the user application - eliminating need for external boot PROM or host processor.

How many McASP interfaces does the TMS320C6747DZKB4 include, and what audio protocols do they support?

The TMS320C6747DZKB4 includes three Multichannel Audio Serial Ports (McASP0–McASP2), each with independent clock zones, 16/9 serializers, and FIFO buffers. They support TDM, I²S, left-justified, right-justified, and DIT (McASP2 only) formats - enabling simultaneous connection to multiple codecs, DACs, ADCs, and digital audio transceivers in complex audio routing topologies.

Is the PRUSS subsystem present on the TMS320C6747DZKB4, and what resources does it provide?

Yes, the TMS320C6747DZKB4 integrates a Programmable Real-Time Unit Subsystem (PRUSS) with two independent 32-bit RISC cores. Each PRU has 4 KB of instruction RAM and 512 bytes of data RAM, runs at CPU clock speed, and features dedicated interrupt controller and switched central resource access - allowing deterministic real-time tasks like PWM generation, encoder counting, or custom protocol handling without loading the main DSP core.

What USB capabilities does the TMS320C6747DZKB4 offer, and are external PHYs required?

The TMS320C6747DZKB4 integrates two USB controllers: USB0 is a USB 2.0 OTG port supporting high-speed (480 Mbps), full-speed (12 Mbps), and low-speed (1.5 Mbps) host/device modes; USB1 is a USB 1.1 OHCI host controller supporting full-speed only. Both include fully integrated PHYs - no external transceivers or resistors are needed beyond standard USB ESD protection and series termination.