Texas Instruments

TMS320LC31PQ40  

DSP

TMS320LC31PQ40 Description

The TMS320LC31PQ40 is a high-performance 32-bit floating-point digital signal processor (DSP) from Texas Instruments' TMS320C3x series. Designed for embedded signal processing applications, it operates at a 40MHz clock rate with a 3.3V core and I/O voltage, ensuring efficient power consumption. The device features 8.25kB of on-chip RAM and relies on external non-volatile memory, making it suitable for flexible system designs. Packaged in a 132-pin BQFP (Plastic Quad Flat Package) and rated for surface-mount assembly, it supports industrial operating temperatures (0°C to 85°C). Though now obsolete, it remains relevant in legacy systems due to its serial port interface and REACH/ROHS3 compliance.

TMS320LC31PQ40 Features

• Floating-Point Architecture: Enables high-precision computations for complex algorithms.
• 40MHz Clock Speed: Balances performance and power efficiency for real-time processing.
• 3.3V Dual-Supply Design: Reduces power dissipation while maintaining compatibility with low-voltage peripherals.
• 8.25kB On-Chip RAM: Accelerates data access for critical DSP tasks.
• External Memory Support: Offers scalability for larger applications.
• Industrial Temperature Range: Reliable operation in harsh environments.
• Serial Port Interface: Simplifies communication with external devices.
• ROHS3/REACH Compliant: Meets environmental and safety standards.

TMS320LC31PQ40 Applications

This DSP excels in real-time signal processing and embedded control systems, including:

• Telecommunications: Modems, echo cancellation, and voice processing.
• Industrial Automation: Motor control, sensor interfacing, and robotics.
• Audio/Video Processing: Noise reduction, compression, and effects processing.
• Medical Devices: Ultrasound imaging and patient monitoring systems.
• Military/Aerospace: Radar and sonar signal analysis (ECCN 3A991A2 compliant).

Conclusion of TMS320LC31PQ40

The TMS320LC31PQ40 is a robust, precision-oriented DSP for legacy embedded systems requiring floating-point performance and low-power operation. Its external memory flexibility and industrial-grade reliability make it ideal for demanding applications, though newer alternatives may offer higher integration. Engineers valuing TI’s proven DSP architecture and compliance with environmental standards will find this IC a dependable choice.

TMS320LC31PQ40 Documents

Download datasheets and manufacturer documentation for TMS320LC31PQ40