ADSP-21489KSWZ-3B

Overview

The ADSP-21489KSWZ-3B is a fourth-generation SHARC digital signal processor featuring a 450 MHz operating frequency and 2700 MFLOPS performance. It utilizes a single-instruction, multiple-data (SIMD) architecture with IEEE 32-bit and 40-bit floating-point support. The device includes 5 Mbits of on-chip RAM and 4 Mbits of ROM. Key hardware accelerators include FIR, IIR, and FFT units. It integrates a Digital Applications Interface (DAI) with an S/PDIF transceiver, eight serial ports, and four asynchronous sample rate converters. The component is housed in a 176-lead LQFP_EP package.

Feature Summary

• 450 MHz SIMD core supporting 32/40-bit floating-point arithmetic
• 5 Mbits on-chip SRAM and 4 Mbits mask-programmable ROM
• Hardware accelerators for FIR, IIR, and FFT processing
• Digital Applications Interface (DAI) with S/PDIF transceiver and eight SPORTs

Applications

• High-performance audio processing and surround sound decoding
• Automotive audio systems
• Industrial control applications

Procurement Notes

Verify the specific suffix KSWZ-3B against the manufacturer's current ordering guide to confirm pinout, temperature range, and packaging details. Ensure development tools such as CrossCore Embedded Studio are compatible with the fourth-generation SHARC architecture.

Selection Notes

Select this model for applications requiring high computational throughput up to 450 MHz. The 5 Mbit RAM configuration supports complex algorithms without external memory dependency. Verify package availability, as the 176-lead LQFP_EP is required for full peripheral access including the external port interface.

Part Context

This processor belongs to the Analog Devices ADSP-2148x family, which shares source code compatibility with previous SHARC generations. It is designed to replace older DSPs in high-end audio and industrial designs while offering enhanced memory bandwidth and specialized audio peripherals.

Replacement Considerations

The ADSP-21488 is a lower-frequency alternative within the same family. Code compatibility exists across the ADSP-2148x series, but verify memory size and peripheral requirements before substitution.