TMS320C6657CZH25

Digital Signal Processor Dsp Overview

The TMS320C6657CZH25 is a fixed and floating-point digital signal processor from Texas Instruments, designed for high-performance computing tasks. It features two C66x DSP cores operating at maximum clock frequencies of 1 GHz or 1.25 GHz. The device utilizes a 32-bit architecture with an external data bus width of 16 bits and includes integrated cache memory. It is housed in a 625-pin FCBGA package (BGA625, 25x25mm, 32 pin pitch) and supports boundary scan. The component operates within a voltage range of 900 mV to 1.1 V and is rated for commercial temperatures between 0°C and 85°C.

Digital Signal Processor Dsp Feature Summary

• Dual-core C66x DSP architecture supporting both fixed and floating-point operations
• Maximum core speeds up to 1.25 GHz with 2 x 32 KB L1 instruction and 2 x 32 KB L1 data cache per core
• 625-pin FCBGA package with 24-bit address bus and 16-bit external data bus
• Integrated multi-core navigation and TeraNet switch structure for efficient inter-processor communication

Digital Signal Processor Dsp Applications

• Task-critical industrial automation systems
• Medical imaging equipment processing
• Test and measurement instrumentation
• Telecommunications infrastructure devices

Digital Signal Processor Dsp Procurement Notes

Verify the specific speed grade suffix (H25 indicates 1.25 GHz capability) against design requirements. Confirm RoHS compliance status as indicated in manufacturer documentation. Ensure PCB layout accounts for the 625-pin FCBGA footprint dimensions of 25x25 mm. Validate power supply sequencing for the 0.9V to 1.1V core voltage domain during integration.

Digital Signal Processor Dsp Selection Notes

Select this model when dual-core performance exceeding 1 GHz is required for floating-point algorithms. Compare against the TMS320C6655 if lower clock speeds suffice for cost optimization. Ensure software tools support the C66x ISA and KeyStone architecture. Verify that the 0°C to 85°C temperature range meets environmental constraints for the target application.

Digital Signal Processor Dsp Part Context

This part belongs to the TMS320C6655/57 series based on the KeyStone multi-core architecture. It offers backward compatibility with existing C6000 series fixed and floating-point DSPs. The series integrates programmable subsystems including accelerators and shared memory controllers to maximize throughput in parallel processing environments.

Digital Signal Processor Dsp Replacement Considerations

The TMS320C6655 serves as a lower-speed variant within the same family. Cross-referencing requires verifying clock frequency differences and ensuring pin-to-pin compatibility within the FCBGA625 package. Software migration should account for identical instruction set architectures.