TMS320LC542PGE1-40

Digital Signal Processor Dsp Overview

The TMS320LC542PGE1-40 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 cycle time of 20 ns, achieving 50 MIPS performance. The device features a 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, and a 16-bit data bus width. It utilizes a 144-pin TQFP package.

Digital Signal Processor Dsp Feature Summary

• Advanced Multibus Architecture: One program memory bus and three separate 16-bit data memory buses enable simultaneous instruction and data access.
• High-Performance ALU: Features a 40-bit Arithmetic Logic Unit with a 40-bit barrel shifter and two independent 40-bit accumulators.
• Single-Cycle MAC: Includes a 17 × 17-bit parallel multiplier coupled to a 40-bit dedicated adder for non-pipelined single-cycle multiply/accumulate operations.
• On-Chip Peripherals: Equipped with 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 Applications

• Digital audio processing and codec applications
• Modem and telecommunications equipment
• Industrial control systems requiring real-time signal processing

Digital Signal Processor Dsp Procurement Notes

Verify the specific ordering suffix '1-40' against the manufacturer's official documentation to confirm pin compatibility and electrical characteristics. Ensure the selected package type matches the design requirements, as the LC542 series supports multiple package options including 128-pin and 144-pin TQFP variants.

Digital Signal Processor Dsp Selection Notes

Select this component for designs requiring 3.3-V operation with 50 MIPS throughput. The LC542 provides specific peripheral support via its TDM and BSP serial ports and HPI interface, distinguishing it from models lacking these interfaces. Confirm that the 10K word RAM capacity meets the application's memory constraints.

Digital Signal Processor Dsp Part Context

This part belongs to the TMS320LC54x low-power fixed-point DSP family. It shares the core C54x architecture with the TMS320C54x (5-V) and TMS320VC54x (2.5-V core) families but is optimized for 3.3-V I/O and core voltage levels.

Digital Signal Processor Dsp Replacement Considerations

The TMS320LC542PBK is a pin-compatible alternative in a 128-pin TQFP package. Verify pin mapping differences if substituting between the 128-pin and 144-pin variants.