TMS320LC543PZ1-50

Digital Signal Processor Dsp Overview

The TMS320LC543PZ1-50 is a fixed-point digital signal processor from the Texas Instruments TMS320LC54x family, designed for high-performance DSP applications. It features an advanced modified Harvard architecture with one program memory bus and three data memory buses, enabling simultaneous instruction and data access. The core includes a 40-bit ALU, a 17x17-bit parallel multiplier coupled to a 40-bit dedicated adder for single-cycle MAC operations, and two address generators with eight auxiliary registers. This device operates at a nominal voltage of 3.3 V with a machine cycle time of 20 ns (50 MIPS). It integrates 10K words of dual-access on-chip RAM and 2K words of ROM, along with peripherals such as a Time-Division Multiplexed (TDM) serial port, a Buffered Serial Port (BSP), an 8-bit Parallel Host-Port Interface (HPI), and a 16-bit timer.

Digital Signal Processor Dsp Feature Summary

• Advanced Modified Harvard Architecture: One program bus and three data buses allow simultaneous access to instructions and data, supporting two reads and one write per cycle.
• High-Speed Arithmetic: Features a 40-bit ALU, a 17x17-bit parallel multiplier, and a 40-bit dedicated adder for single-cycle Multiply/Accumulate (MAC) operations.
• On-Chip Memory: Includes 10K words of dual-access RAM and 2K words of ROM, configurable for program or data storage.
• Integrated Peripherals: Equipped with TDM and BSP serial ports, an 8-bit HPI, a 16-bit timer, and JTAG boundary scan logic for emulation.

Digital Signal Processor Dsp Applications

• Digital audio processing and codec implementations
• Modem and telecommunications signal processing
• Image and video compression/decompression algorithms
• Industrial control systems requiring real-time signal analysis

Digital Signal Processor Dsp Procurement Notes

Verify the specific suffix '1-50' against the manufacturer's official documentation to confirm speed grade and package variant. Ensure compatibility with 3.3 V power supplies and check for RoHS compliance status in the latest datasheet revision. Confirm availability through authorized distributors as this is a legacy component within the C54x family.

Digital Signal Processor Dsp Selection Notes

Select the TMS320LC543PZ1-50 when a balance of moderate on-chip memory (10K RAM/2K ROM) and high-speed processing (50 MIPS) is required. It is suitable for applications needing both TDM and BSP serial interfaces but does not require the extended memory or higher speeds of the LC548/LC549 variants. Ensure the design supports the 100-pin TQFP package constraints.

Digital Signal Processor Dsp Part Context

This component belongs to the TMS320LC54x generation of fixed-point DSPs, which are optimized for low-power, high-performance digital signal processing. The LC543 variant specifically targets applications requiring efficient code density and fast execution times without the cost of larger memory capacities found in the LC545-LC549 series.

Digital Signal Processor Dsp Replacement Considerations

Direct pin-compatible replacements within the same family include the TMS320LC541 (lower memory) or TMS320LC546 (different peripheral set). For higher performance, the TMS320LC548 or TMS320LC549 offer increased memory and faster cycle times but require different packages (144-pin) or significant redesign if moving from the 100-pin TQFP.

Digital Signal Processor Dsp FAQ

What is the maximum operating frequency of the TMS320LC543?

The TMS320LC543 has a nominal machine cycle time of 20 ns, corresponding to a maximum operating frequency of 50 MIPS (Million Instructions Per Second).

Does the TMS320LC543 support external memory expansion?

Yes, it supports up to 64K words of external program memory and 64K words of external data/I/O memory via its multiplexed address and data buses.

What serial communication interfaces are available on the LC543?

The LC543 includes a Time-Division Multiplexed (TDM) serial port and a Buffered Serial Port (BSP) for flexible serial communication options.