TMS320LC543PZ2-40

Digital Signal Processor Dsp Overview

The TMS320LC543PZ2-40 is a fixed-point digital signal processor from the Texas Instruments TMS320LC54x family. It operates on a 3.3-V power supply with a nominal machine cycle time of 20 ns, achieving 50 MIPS performance. The device features an advanced modified Harvard architecture with one program memory bus and three data memory buses. Key specifications include 10K words of dual-access on-chip RAM, 2K words of ROM, a 40-bit ALU, and a 17x17-bit parallel multiplier. It is housed in a 100-pin Thin Quad Flatpack (TQFP) package.

Digital Signal Processor Dsp Feature Summary

• Advanced Modified Harvard Architecture: Provides simultaneous access to program instructions and data via separate buses, enabling two reads and one write operation per cycle.
• High-Performance Arithmetic Unit: Includes a 40-bit Arithmetic Logic Unit (ALU), a 40-bit barrel shifter, two independent 40-bit accumulators, and a 17x17-bit parallel multiplier coupled to a dedicated 40-bit adder for single-cycle Multiply/Accumulate (MAC) operations.
• On-Chip Memory Configuration: Equipped with 10K words of dual-access RAM and 2K words of ROM, supporting flexible memory mapping for program and data storage.
• Specialized Peripherals: Features a Time-Division Multiplexed (TDM) serial port and a Buffered Serial Port (BSP), along with an 8-bit Parallel Host-Port Interface (HPI) and a 16-bit timer.

Digital Signal Processor Dsp Applications

• Digital Audio Processing
• Modem Applications
• Voice Coding and Decoding

Digital Signal Processor Dsp Procurement Notes

Verify the specific ordering suffix 'PZ2-40' against the manufacturer's current documentation to confirm pinout compatibility and electrical specifications. Ensure that the 3.3-V core voltage requirements are met by the system power design. Confirm that the 100-pin TQFP package dimensions align with the target PCB footprint.

Digital Signal Processor Dsp Selection Notes

Select this component when a 3.3-V supply and 50 MIPS processing speed are required. The LC543 variant is suitable for applications needing TDM and BSP serial interfaces but does not require the HPI found in other variants like the LC542. Consider the 100-pin package size relative to available board space compared to higher-pin-count devices in the same family.

Digital Signal Processor Dsp Part Context

This device belongs to the TMS320LC54x generation of DSPs, which are optimized for low-power, high-performance digital signal processing tasks. The LC54x series specifically targets 3.3-V applications, offering faster execution times than the 5-V C54x counterparts while maintaining software compatibility with the broader C54x instruction set architecture.

Digital Signal Processor Dsp Replacement Considerations

Direct replacements within the same family include the TMS320LC541 or TMS320LC546, provided memory sizes and peripheral sets (specifically the presence of TDM/BSP ports) meet the application requirements. Verify package compatibility as the LC541 also uses a 100-pin TQFP, whereas the LC546 may have different peripheral configurations.