TMS320LC548GGU-66

Digital Signal Processor Dsp Overview

The TMS320LC548GGU-66 is a fixed-point digital signal processor from the Texas Instruments TMS320C54x family, housed in a 144-pin BGA package. It features an advanced modified Harvard architecture with one program memory bus and three data memory buses. The core includes a 40-bit ALU, a 17x17-bit parallel multiplier, and two address generators. Operating at a maximum clock frequency of 66 MHz (15-ns execution time) with a 3.3-V supply, it delivers up to 66 MIPS. The device supports a maximum addressable memory space of 192K x 16 bits and integrates on-chip RAM, ROM, and peripherals such as buffered serial ports, a TDM serial port, and an 8-bit host port interface.

Digital Signal Processor Dsp Feature Summary

• Advanced Modified Harvard Architecture: Separate program and data buses enable simultaneous instruction and data access for high parallelism.
• High-Performance Core: Features a 40-bit ALU, 17x17-bit multiplier with dedicated adder, and CSSU for Viterbi operations.
• Integrated Peripherals: Includes dual buffered serial ports (BSP), a time-division multiplexed (TDM) serial port, an 8-bit host port interface (HPI), and a PLL clock generator.
• Memory Support: Addresses up to 192K x 16 bits total memory space with on-chip dual-access and single-access RAM.

Digital Signal Processor Dsp Applications

• Digital audio processing and codec implementations
• Modem and telecommunications signal processing
• Image and video compression/decompression systems
• Industrial control and instrumentation

Digital Signal Processor Dsp Procurement Notes

Verify the specific speed grade suffix '-66' corresponds to the 66 MHz operating frequency in official documentation. Confirm the GGU package designation matches the 144-pin Ball Grid Array physical specifications. Ensure voltage requirements align with the 3.3-V DVDD and CVDD recommended operating conditions specified in the datasheet.

Digital Signal Processor Dsp Selection Notes

Select this component when a low-power, fixed-point DSP with moderate performance (up to 66 MIPS) is required. Consider the 144-pin BGA package for board space constraints. Evaluate peripheral needs against the available BSP, TDM, and HPI interfaces. Ensure the system design accommodates the separate 3.3-V core and I/O power supplies.

Digital Signal Processor Dsp Part Context

This device belongs to the TMS320LC54x series, which are low-power, enhanced versions of the C54x DSP family. The LC548 variant specifically offers a 66 MHz maximum clock speed compared to higher-speed variants like the VC548. It shares architectural similarities with other C54x devices but is optimized for 3.3-V operation.

Digital Signal Processor Dsp Replacement Considerations

Direct replacements within the same speed grade and package include other TMS320LC548 variants if available. For different clock speeds, consider the TMS320VC548 series, noting that voltage levels may differ. Verify pin compatibility and software instruction set compatibility before substituting.