ADSP-21477BCPZ-1A

Digital Signal Processor Dsp Overview

The ADSP-21477BCPZ-1A is a high-performance 32-bit/40-bit floating-point digital signal processor from the SHARC family, operating at a maximum clock frequency of 200 MHz. It features a Single-Instruction, Multiple-Data (SIMD) computational architecture with two processing elements and up to 2 Mbits of on-chip SRAM. The device utilizes Super Harvard Architecture for independent instruction and data access. Key peripherals include eight serial ports, an S/PDIF transceiver, asynchronous sample rate converters, and a Digital Applications Interface (DAI). It is housed in an 88-lead LFCSP_VQ package.

Digital Signal Processor Dsp Feature Summary

• 200 MHz SIMD Floating-Point Core: Delivers up to 1.8 GFLOPS with dual processing elements (PEX, PEY) and parallel ALU/multiplier units.
• On-Chip Memory: Contains 2 Mbits of internal SRAM configured across four blocks for flexible code and data storage.
• Audio-Centric Peripherals: Includes eight SPORTs, one S/PDIF transceiver, four Asynchronous Sample Rate Converters (ASRC), and a Digital Applications Interface (DAI).
• Enhanced Architecture: Features Variable Instruction Set Architecture (VISA) for compact code, hardware circular buffers via Data Address Generators (DAGs), and an instruction cache.

Digital Signal Processor Dsp Applications

• High-performance audio processing and decoding
• Medical imaging systems
• Communications equipment
• Test and measurement instrumentation

Digital Signal Processor Dsp Procurement Notes

Verify the specific suffix BCPZ-1A against the manufacturer's current ordering guide to confirm package type (88-lead LFCSP_VQ) and temperature range. Ensure that design-in requirements align with the AEC-Q100 qualification status if automotive compliance is necessary, as this applies to specific models within the family.

Digital Signal Processor Dsp Selection Notes

Select the ADSP-21477 when 2 Mbits of on-chip memory and a 200 MHz core speed are sufficient for the application. Compare against the ADSP-21478 (3 Mbits RAM, 300 MHz) or ADSP-21479 (5 Mbits RAM, 300 MHz) if higher performance or memory capacity is required. Note that external port interfaces (SDRAM/AMI) are only available on the 196-ball BGA package, not the LFCSP_VQ used by this part.

Digital Signal Processor Dsp Part Context

This component belongs to the ADSP-2147x family of SHARC processors, which are source-code compatible with previous generations like the ADSP-2126x and ADSP-2136x. The family shares a common SIMD core architecture but varies in on-chip memory size, maximum operating frequency, and peripheral availability depending on the specific model number.

Digital Signal Processor Dsp Replacement Considerations

Direct replacements within the same package and pinout include other variants of the ADSP-21477 series. For upgraded performance, the ADSP-21478 or ADSP-21479 may be considered, though they require verification of pin compatibility and thermal management due to potential differences in power consumption and package options.