TMS320LC548PGE-66

Digital Signal Processor Dsp Overview

The TMS320LC548PGE-66 is a fixed-point digital signal processor based on the C54x core, manufactured by Texas Instruments. It features an advanced modified Harvard architecture with separate program and data buses. The device supports a maximum clock frequency of 66 MHz, delivering 66 MIPS performance at a 3.3-V supply voltage. Key specifications include a 17x17-bit parallel multiplier, a 40-bit ALU, and on-chip memory configurations. It operates within a temperature range of -40°C to +100°C and utilizes a 144-pin Thin Quad Flatpack (TQFP) package.

Digital Signal Processor Dsp Feature Summary

• Advanced Multibus Architecture: One program memory bus and three 16-bit data memory buses for high parallelism.
• High-Performance Arithmetic: 17x17-bit parallel multiplier coupled to a 40-bit dedicated adder for single-cycle MAC operations.
• On-Chip Peripherals: Includes dual buffered serial ports (BSP), a time-division multiplexed (TDM) serial port, an 8-bit parallel host port interface (HPI), and a 16-bit timer.
• Power Management: Supports IDLE1, IDLE2, and IDLE3 instructions for power-down modes and includes CLKOUT off control.

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 speed grade suffix (-66) corresponds to the required 66 MHz operating frequency. Confirm the PGE package designation matches the 144-pin TQFP requirement. Ensure the DVDD supply voltage is maintained between 3.0 V and 3.6 V for proper operation. Check for RoHS compliance status if environmental regulations apply to the target assembly process.

Digital Signal Processor Dsp Selection Notes

Select this component when a 66 MHz execution speed is sufficient for the application, as faster variants like the -80 exist. The LC548 variant is designed for 3.3-V I/O interfaces, distinguishing it from VC54x series parts which may support different voltage levels. Consider the available on-chip RAM and ROM sizes against application memory requirements before choosing alternative members of the C54x family.

Digital Signal Processor Dsp Part Context

This part belongs to the TMS320C54x family of 16-bit fixed-point DSPs. The 'LC' prefix indicates a low-voltage, 3.3-V I/O version optimized for lower power consumption compared to earlier 5-V devices. The TMS320LC548 represents a higher-performance node within the LC54x sub-family, offering increased clock speeds and enhanced peripheral sets compared to base models like the LC5416.

Digital Signal Processor Dsp Replacement Considerations

Direct pin-compatible replacements within the same package include other speed grades of the TMS320LC548 series, such as the TMS320LC548PGE-80, provided the system clock can support the higher frequency. Verify that any substitute maintains the 3.3-V I/O voltage compatibility.