ADSP-BF531SBSTZ400

Digital Signal Processor Dsp Overview

The ADSP-BF531SBSTZ400 is a Blackfin embedded processor from Analog Devices, operating at a maximum clock frequency of 400 MHz. It features a dual-MAC signal processing engine with two 16-bit multipliers and two 40-bit ALUs. The device includes 52 KB of on-chip L1 memory, configurable as 32 KB instruction SRAM/cache and 16 KB data SRAM/cache, plus 4 KB scratchpad SRAM. It utilizes a 176-lead LQFP package and operates on a 1.2 V core voltage with 1.8 V/3.3 V I/O levels within an industrial temperature range of -40°C to +85°C.

Digital Signal Processor Dsp Feature Summary

• Blackfin MSA architecture with dual 16-bit MACs and four 8-bit video ALUs
• 52 KB total on-chip L1 memory (32K Instruction, 16K Data, 4K Scratchpad)
• Integrated peripherals including PPI, dual SPORTs, SPI, UART, and three timers
• Programmable on-chip voltage regulator for dynamic power management

Digital Signal Processor Dsp Applications

• Portable test equipment
• Embedded modems
• Biometric identification systems
• Consumer audio applications

Digital Signal Processor Dsp Procurement Notes

Verify the specific suffix 'SBSTZ' against the official Analog Devices ordering guide to confirm the 176-lead LQFP package and commercial/industrial temperature grade. Confirm RoHS compliance status via the manufacturer's current documentation. Check for end-of-life notices or alternative package options if lead times are critical.

Digital Signal Processor Dsp Selection Notes

Select this model when 400 MHz performance is sufficient and 52 KB of internal memory meets application requirements. Compare against ADSP-BF532 (84 KB memory) or ADSP-BF533 (148 KB memory) if larger code/data storage is needed. Ensure the 176-lead LQFP footprint fits the PCB design constraints compared to BGA alternatives.

Digital Signal Processor Dsp Part Context

This component belongs to the ADSP-BF531/532/533 family, which shares pin compatibility and architectural features. The BF531 serves as the entry-level option in this series, offering lower cost and reduced memory capacity while maintaining full software compatibility with higher-performance variants.

Digital Signal Processor Dsp Replacement Considerations

Pin-compatible alternatives within the same family include ADSP-BF532 and ADSP-BF533, which offer increased on-chip memory but may have different pricing or availability profiles.