TMS320LC548PGE-80

Digital Signal Processor Dsp Overview

The TMS320LC548PGE-80 is a fixed-point digital signal processor based on an advanced modified Harvard architecture. It features one program memory bus and three data memory buses, enabling simultaneous access to instructions and data. The core includes a 40-bit arithmetic logic unit (ALU), a 17x17-bit parallel multiplier coupled to a dedicated adder for single-cycle multiply/accumulate operations, and two address generators with auxiliary registers. The device supports a maximum addressable memory space of 192K x 16 bits and integrates on-chip RAM and ROM. It operates at 80 MIPS with a 12.5-ns instruction execution time using a 3.3-V power supply.

Digital Signal Processor Dsp Feature Summary

• Advanced Modified Harvard Architecture with separate program and data buses
• 40-bit ALU with 17x17-bit Parallel Multiplier and Single-Cycle MAC
• On-Chip Peripherals including PLL Clock Generator, TDM Serial Port, BSP, and HPI
• Supports up to 192K x 16-bit Addressable Memory Space

Digital Signal Processor Dsp Applications

• Digital Signal Processing applications requiring high-speed fixed-point arithmetic
• Multiprocessor configurations utilizing the External Flag (XF) output
• Systems requiring Host Port Interface (HPI) for external microprocessor control

Digital Signal Processor Dsp Procurement Notes

Verify the specific ordering suffix 'PGE-80' against the manufacturer's datasheet to confirm the package type (TQFP) and speed grade (80 MHz). Ensure that the CNT pin is configured correctly for 3.3-V CMOS-compatible I/O levels during system design. Cross-reference the document SPRS123 for complete electrical characteristics and timing requirements.

Digital Signal Processor Dsp Selection Notes

Select this component when a 16-bit DSP with a 40-bit accumulator and single-cycle MAC capability is required. The PGE-80 variant provides an 80 MHz clock speed suitable for demanding signal processing tasks. Consider the available on-chip memory configuration and the need for specific peripherals like the Buffered Serial Port or Host Port Interface when evaluating this part against other C54x family members.

Digital Signal Processor Dsp Part Context

The TMS320LC548 belongs to the Texas Instruments TMS320C54x family of 16-bit fixed-point DSPs. This family is characterized by its highly optimized instruction set and low power consumption modes. The LC548 specifically targets applications needing robust arithmetic performance and flexible memory interfacing options within a single chip environment.

Digital Signal Processor Dsp Replacement Considerations

Consult the TMS320VC548 datasheet (SPRS123) for functional equivalents within the same family. Verify pin compatibility and electrical specifications before substituting with other C54x variants such as the TMS320LC542 or TMS320VC5416.