TMS320C6455DZTZ2

Digital Signal Processor Dsp Overview

The TMS320C6455 is a high-performance fixed-point digital signal processor based on the C64x+ architecture. It delivers up to 9600 MIPS/MMACS at clock rates of 720 MHz, 850 MHz, 1 GHz, and 1.2 GHz. The device features a VelociTI VLIW core with eight functional units, 32 KB L1P cache, 32 KB L1D cache, and 2 MB L2 unified memory/cache. Key peripherals include a 10/100/1000 Mbps Ethernet MAC (EMAC), Serial RapidIO links, PCI interface, EDMA3 controller, and DDR2 memory controller. It is housed in a 697-pin BGA package.

Digital Signal Processor Dsp Feature Summary

• C64x+ DSP Core: Up to 9600 MIPS at 1.2 GHz with eight functional units per cycle.
• Memory System: 32 KB L1P, 32 KB L1D, and 2 MB L2 unified memory; supports external DDR2 SDRAM.
• High-Speed Interfaces: Integrated 10/100/1000 Mbps EMAC, Serial RapidIO, and 32-bit PCI.
• Data Transfer: EDMA3 controller with 64 independent channels for efficient data movement.

Digital Signal Processor Dsp Applications

• Video and telecom infrastructure processing
• Imaging and medical equipment signal processing
• Wireless infrastructure baseband processing

Digital Signal Processor Dsp Procurement Notes

Verify the specific speed grade suffix (e.g., -7, -8, -1000, -1200) required for the target clock frequency. Confirm temperature range requirements, as commercial and extended temperature variants share electrical characteristics but differ in operating case temperature limits. Ensure the correct package variant (CTZ, GTZ, or ZTZ) matches the PCB footprint design.

Digital Signal Processor Dsp Selection Notes

Select the appropriate speed grade based on the required instruction cycle time (1.39 ns to 0.83 ns). The ZTZ suffix indicates a flip-chip plastic BGA package, while CTZ and GTZ denote standard plastic BGAs. Verify power supply configurations, as the device requires multiple voltage rails including 1.25 V/1.2 V for the core and 1.25 V/1.2 V/1.5 V/1.8 V/3.3 V for I/Os depending on the specific configuration.

Digital Signal Processor Dsp Part Context

The TMS320C6455 belongs to the TMS320C6000 platform, representing the highest-performance fixed-point generation using the third-generation VelociTI architecture. It maintains upward code compatibility with previous C6000 devices like the C64x. The device utilizes a 0.09-μm CMOS process technology to achieve high throughput while managing power consumption in dense system designs.

Digital Signal Processor Dsp Replacement Considerations

Direct pin-to-pin replacements within the same package are limited within the C6455 family itself (differing only by speed grade). For architectural upgrades, consider other C64x+ devices such as the TMS320C6474 or TMS320C6472, though these may require significant schematic and software modifications due to peripheral differences.

Digital Signal Processor Dsp FAQ

What is the maximum clock frequency supported by the TMS320C6455?

The TMS320C6455 supports clock frequencies of 720 MHz, 850 MHz, 1 GHz, and 1.2 GHz, depending on the specific speed grade suffix ordered.

How much internal memory does the TMS320C6455 contain?

The device contains 32 KB of L1 Program Cache/SRAM, 32 KB of L1 Data Cache/SRAM, and 2 MB (2048 KB) of L2 Unified Mapped RAM/Cache.

Does the TMS320C6455 support external DDR2 memory?

Yes, it includes a dedicated DDR2 Memory Controller that interfaces to DDR2-533 SDRAM with a 32-bit bus width, supporting up to 512 MByte of total addressable external memory space.