TMS320C6655CZH

Digital Signal Processor Dsp Overview

The TMS320C6655CZH is a fixed and floating-point digital signal processor from the Texas Instruments TMS320C6655 series. It features a single C66x DSP core operating at a maximum clock frequency of 1 GHz or 1.25 GHz. The device utilizes a 625-pin FCBGA package with dimensions of 21.1 x 21.1 mm and a height of 2.54 mm. Electrical specifications include an operating voltage range of 900 mV to 1.1 V, L1 instruction and data caches of 32 KB each, and support for boundary scan. The component operates within a temperature range of -40°C to +100°C.

Digital Signal Processor Dsp Feature Summary

• Single C66x DSP core providing 40 GMACS (fixed-point) and 20 GFLOPS (floating-point) performance at 1.25 GHz
• Integrated 32 KB L1 instruction cache and 32 KB L1 data cache per core
• Supports both fixed-point and floating-point arithmetic formats compliant with IEEE 754
• Compatible with KeyStone multi-core architecture features including TeraNet switch fabric

Digital Signal Processor Dsp Applications

• Test and measurement equipment
• Medical imaging systems
• Industrial automation control
• Infrastructure networking devices

Digital Signal Processor Dsp Procurement Notes

Verify the specific speed grade suffix (e.g., A25 vs H8) against design requirements, as these indicate different maximum clock frequencies. Confirm RoHS compliance status and lead times directly with authorized distributors. Ensure ESD protection protocols are followed during handling due to the fine-pitch BGA packaging.

Digital Signal Processor Dsp Selection Notes

Select this model when a single high-performance C66x core is sufficient for the application. Compare against the dual-core TMS320C6657 if higher aggregate throughput is required. Verify that the 1.25 GHz speed grade meets timing constraints; lower speed grades may offer better power efficiency or cost advantages for less demanding workloads.

Digital Signal Processor Dsp Part Context

This component belongs to the TMS320C6655/C6657 family based on the KeyStone architecture. It is backward code-compatible with previous C6000 series DSPs, facilitating software migration. The device integrates peripherals such as SRIO, PCIe, and GbE subsystems alongside hardware accelerators like Viterbi and Turbo decoders.

Digital Signal Processor Dsp Replacement Considerations

The TMS320C6657CZH serves as a functional alternative offering two cores instead of one. For single-core replacements with different speed grades, consider variants ending in different suffixes within the same package type.