TMS320LC542PGE2-40

Digital Signal Processor Dsp Overview

The TMS320LC542PGE2-40 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 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 on-chip ROM, and a 40-bit ALU with a 17x17-bit parallel multiplier. It supports single-cycle multiply/accumulate operations and includes a Time-Division Multiplexed (TDM) serial port, a Buffered Serial Port (BSP), and an 8-bit Parallel Host-Port Interface (HPI).

Digital Signal Processor Dsp Feature Summary

• Advanced Modified Harvard Architecture: Provides simultaneous access to program instructions and data via separate buses.
• High-Performance Arithmetic Unit: Features a 40-bit ALU, two independent 40-bit accumulators, and a 17x17-bit parallel multiplier coupled to a 40-bit dedicated adder for single-cycle MAC operations.
• On-Chip Memory Configuration: Includes 10K words of dual-access RAM and 2K words of ROM, which can be configured as program or data memory.
• Integrated Peripherals: Equipped with a TDM serial port, a BSP, an 8-bit HPI, a 16-bit timer, and JTAG boundary scan logic.

Digital Signal Processor Dsp Applications

• Digital Signal Processing applications requiring fixed-point arithmetic.
• Systems utilizing the Host-Port Interface for communication with host processors.
• Audio and telecommunications processing using TDM or BSP serial interfaces.

Digital Signal Processor Dsp Procurement Notes

Verify the specific ordering suffix 'PGE2-40' against current manufacturer documentation to confirm pin compatibility and electrical characteristics. Ensure that the 3.3-V core voltage and I/O levels match the system design requirements. Confirm availability status as legacy components may have limited production support.

Digital Signal Processor Dsp Selection Notes

Select this component when a 3.3-V operation with 20-ns cycle time is required. It is suitable for designs needing 10K words of RAM and 2K words of ROM. Consider the available peripherals, specifically the TDM and BSP ports, if serial communication is necessary. Compare with other LC54x variants if different memory sizes or package types are preferred.

Digital Signal Processor Dsp Part Context

This device belongs to the TMS320LC54x family, which is part of the broader C54x DSP generation. It shares architectural similarities with the TMS320C542 but operates at lower voltage (3.3 V vs 5.0 V) for reduced power consumption. The 'LC' designation indicates low-voltage CMOS technology compatible with 3.3-V systems.

Digital Signal Processor Dsp Replacement Considerations

Direct replacements within the same family include TMS320LC542 variants with different speed grades or packages, such as TMS320LC542PGE-50 or TMS320LC542PGE-66. Verify pinout compatibility and ensure the replacement meets the required clock frequency and memory configuration.