TMS320C31PQL80

Digital Signal Processor Dsp Overview

The TMS320C31PQL80 is a high-performance 32-bit floating-point digital signal processor from the TMS320C3x family, manufactured by Texas Instruments. It operates at a maximum clock frequency of 80 MHz with a 25-ns instruction cycle time, delivering up to 440 MOPS, 80 MFLOPS, and 40 MIPS. The device features a 32-bit CPU, 16-/32-bit integer and 32-/40-bit floating-point operations, and two 1K × 32-bit single-cycle dual-access on-chip RAM blocks. Packaged in a 132-pin Plastic Quad Flat Package (PQ), it utilizes 0.6 μm EPIC technology and supports parallel multiply/ALU execution.

Digital Signal Processor Dsp Feature Summary

• High-performance 32-bit floating-point DSP architecture with 80 MFLOPS capability at 80 MHz
• Dual-access on-chip memory: Two 1K × 32-bit RAM blocks for concurrent data access
• Integrated peripherals including one serial port, two 32-bit timers, and one DMA channel
• Hardware-intensive design enabling parallel arithmetic/logic unit and multiplier execution in a single cycle

Digital Signal Processor Dsp Applications

• Digital signal processing applications requiring multiple-precision operations
• DSP and embedded system controller upgrades
• Magnetic suspension system control using real-time digital controllers
• Telecommunications and data communications signal processing

Digital Signal Processor Dsp Procurement Notes

Verify the specific speed grade suffix '80' corresponds to the 80 MHz / 25-ns cycle requirement. Confirm the 'PQ' package designation matches the 132-pin Plastic Quad Flat Package specification. Ensure the component meets the commercial operating temperature range of 0°C to 85°C as defined for the PQL variant.

Digital Signal Processor Dsp Selection Notes

Select this model for systems requiring high-speed floating-point arithmetic and low-latency interrupt handling. The C31-80 variant is suitable for applications demanding 80 MFLOPS performance. Consider the LC31 variants if 3.3 V operation is required instead of the standard 5 V supply used by the C31 series.

Digital Signal Processor Dsp Part Context

This component belongs to the TMS320C3x generation of DSPs, representing an evolution in architectural design from earlier TMS320 families. It is fabricated using 0.6 μm Enhanced Performance Implanted CMOS (EPIC) technology. The device supports both microprocessor mode and microcomputer/boot-loader mode configurations via the MCBL/MP pin.

Digital Signal Processor Dsp Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.