DSP56321VL240

Digital Signal Processor Dsp Overview

The DSP56321 is a 24-bit digital signal processor from the DSP56300 family, designed for high-performance applications such as networking and security encryption. It features a single-clock-cycle-per-instruction engine compatible with DSP56000 code, operating at an internal clock frequency of 275 MHz. The device delivers 275 MMACS performance, reaching 550 MMACS when utilizing the Enhanced Filter Coprocessor (EFCOP). It employs a 1.6 V core voltage with independent 3.3 V I/O power supplies. Key architectural components include a 24x24+56 bit MAC, two 56-bit accumulators, a 56-bit barrel shifter, and a 1024x24 bit instruction cache.

Digital Signal Processor Dsp Feature Summary

• High-Performance Core: 275 MMACS at 275 MHz; 550 MMACS with EFCOP enabled.
• Enhanced Filter Coprocessor (EFCOP): Parallel 24x24-bit filtering unit supporting FIR/IIR filters and LMS algorithms.
• Memory Architecture: Configurable internal RAM totaling 192 K x 24 bits, including program, X-data, and Y-data spaces.
• Peripheral Interfaces: Includes HI08 host interface, dual ESSI ports, SCI, triple timer, and JTAG/OnCE debugging.

Digital Signal Processor Dsp Applications

• Wireless and wireline infrastructure systems
• Multi-channel wireless local loop systems
• Security encryption systems
• Home entertainment systems
• IP telephony

Digital Signal Processor Dsp Procurement Notes

Verify the specific package variant (MAP-BGA) and lead-free status against the datasheet revision. Confirm that the 1.6 V core and 3.3 V I/O power requirements are met by the system design. Ensure adequate external decoupling capacitors are provided for all isolated power inputs (VCCQL, VCCA, VCCD, etc.) as specified in the electrical characteristics.

Digital Signal Processor Dsp Selection Notes

Select this component for applications requiring large internal memory and parallel filter processing. The DSP56321 is pin-compatible with the DSP56303, DSP56L307, DSP56309, and DSP56311, allowing for potential direct replacements within the same family. Consider the EFCOP capability if echo cancellation or general convolution-based algorithms are required to offload the main core.

Digital Signal Processor Dsp Part Context

The DSP56321 belongs to the Freescale Semiconductor DSP56300 family. It is designed to support applications demanding high throughput and low power consumption. The device integrates a hardware stack, nested hardware DO loops, and a six-channel DMA controller to facilitate efficient data movement and control flow management in complex signal processing tasks.

Digital Signal Processor Dsp Replacement Considerations

The DSP56321 is pin-compatible with the DSP56303, DSP56L307, DSP56309, and DSP56311. These parts may serve as functional substitutes depending on specific memory configuration and peripheral availability requirements.