TMS320C25GBA

Digital Signal Processor Dsp Overview

The TMS320C25GBA is a CMOS second-generation digital signal processor from Texas Instruments, operating at a maximum clock frequency of 40 MHz with an instruction cycle time of 80 ns. It features a 16-bit architecture with a 32-bit ALU and accumulator, alongside a single-cycle 16x16-bit multiplier. The device includes 544 words of on-chip data RAM and 4K words of on-chip program ROM. It utilizes a modified Harvard architecture and supports a single 5-V supply. The component is housed in a 68-pin PGA package (GB) and is designed for applications requiring high-speed numerical processing.

Digital Signal Processor Dsp Feature Summary

• CMOS technology enabling 80-ns instruction cycle time
• Single-cycle 16x16-bit hardware multiplier with 32-bit product
• 544 words on-chip data RAM and 4K words on-chip program ROM
• Bit-reversed indexed-addressing mode optimized for radix-2 FFTs

Digital Signal Processor Dsp Applications

• Telecommunications systems
• Industrial control applications
• Military signal processing systems

Digital Signal Processor Dsp Procurement Notes

Verify the current production status of the TMS320C25GBA directly with Texas Instruments or authorized distributors, as legacy DSP components may be subject to discontinuation or limited availability. Confirm that the 68-pin PGA package matches the target PCB footprint and that the 5-V logic levels are compatible with the system design requirements.

Digital Signal Processor Dsp Selection Notes

Select the TMS320C25GBA when an 80-ns cycle time is required compared to the standard 100-ns TMS320C25. Ensure the application can accommodate the 68-pin PGA package. Verify software compatibility if migrating from the NMOS TMS32020, as the C25 is object-code compatible but offers enhanced instructions like bit-reversed addressing for FFT operations.

Digital Signal Processor Dsp Part Context

The TMS320C25GBA belongs to the TMS320C2x family, representing the second generation of Texas Instruments' DSPs. It is the commercial-grade, high-speed variant of the TMS320C25, distinguished by its 80-ns cycle time. It maintains architectural compatibility with the TMS32010 and TMS32020 families while introducing CMOS low-power benefits and expanded instruction sets.

Digital Signal Processor Dsp Replacement Considerations

Publicly confirmed direct substitute part numbers are not available in the provided documentation. Designers should evaluate the TMS320C25-50 for identical performance characteristics or consult Texas Instruments for modern C2000 series alternatives.