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Home > Products > Integrated Circuits (ICs) > Embedded > DSP (Digital Signal Processors)

Analog Devices Inc. ADSP-21571CSWZ-5

Name: ADSP-21571CSWZ-5
Brand: Analog Devices Inc.
SKU: ADSP-21571CSWZ-5
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADSP-21571CSWZ-5

Manufacturer:: Analog Devices Inc.

Category:: DSP (Digital Signal Processors)

Package:: 176-LQFP Exposed Pad

Datasheet:: ADSP-21571CSWZ-5.pdf

Description:: 500 MHZ 2X SHARC, LQFP PACKAGE

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Product details

Overview

ADSP-21571CSWZ-5 from Analog Devices is a dual-core SHARC+ DSP with Arm Cortex-A5 co-processor in 176-lead LQFP_EP package, operating at 500 MHz per SHARC+ core and supporting 32-/40-/64-bit floating-point arithmetic. It integrates 3 Mb L1 SRAM (384 kB per core), 1 MB L2 SRAM with ECC, dual CAN 2.0 interfaces, and AEC-Q100 qualification for automotive audio processing systems.

For engineers reviewing the ADSP-21571CSWZ-5 datasheet, ADSP-21571CSWZ-5 pinout, ADSP-21571CSWZ-5 application, or ADSP-21571CSWZ-5 equivalent, key selection criteria include SHARC+ core frequency, L1 SRAM partitioning, CAN interface count, LQFP thermal performance, and TrustZone-enabled security architecture.

Technical Context

The ADSP-21571CSWZ-5 implements a heterogeneous dual-core architecture: two SHARC+ SIMD cores (500 MHz each) handle real-time floating-point signal processing, while the Arm Cortex-A5 (500 MHz) manages OS services, connectivity, and system control. Memory coherency is maintained via shared L2 SRAM (1 MB, ECC-protected) and L2 cache (256 kB, parity).

Peripherals are routed through a system crossbar with DMA support, including two CAN 2.0 controllers, three UARTs, four full SPORTs, S/PDIF Rx/Tx, and an 8-channel 12-bit HADC. Security is enforced by cryptographic accelerators, fast secure boot, and Arm TrustZone isolation between DSP and Arm domains.

Key Specifications

Parameter	Value and Actual Design Meaning
Core Architecture	Dual SHARC+ SIMD cores + Arm Cortex-A5; enables parallel real-time DSP and application-layer processing without inter-core contention.
SHARC+ Core Speed	500 MHz per core; delivers up to 6 GFLOPS peak floating-point performance for audio filtering, beamforming, or motor control algorithms.
L1 SRAM	2 × 384 kB (3 Mb total) with parity; configurable as SRAM or cache, enabling deterministic single-cycle memory access for time-critical code/data.
L2 Memory	1 MB SRAM with ECC protection; serves as shared scratchpad or buffer memory accessible by both SHARC+ and Arm cores.
Package	176-lead LQFP_EP (17 mm × 17 mm); supports industrial temperature range and provides exposed pad for thermal dissipation in space-constrained automotive ECUs.
CAN Interfaces	2 × CAN 2.0 compliant controllers; enable direct integration into vehicle networks for sensor fusion or actuator coordination without external transceivers.
Security Features	Arm TrustZone, cryptographic hardware accelerators, fast secure boot with IP protection; isolates firmware execution and prevents unauthorized firmware extraction.

Pinout & Package

ADSP-21571CSWZ-5 uses a 176-lead LQFP_EP package with exposed thermal pad. Pin assignments follow Analog Devices' standardized GPIO multiplexing for LQFP packages, supporting flexible peripheral mapping across UART, SPI, I2C, CAN, SPORT, and DAI functions.

Pin/Terminal	Circuit Role	Design Meaning
GPIO_A0–A15	General-purpose I/O bank A	Configurable as digital inputs/outputs or alternate functions including UART0_TX/RX, SPI0_SCLK, and CAN0_RX/TX.
GPIO_B0–B15	General-purpose I/O bank B	Supports UART1_TX/RX, SPI1_SCLK, CAN1_RX/TX, and SPORT0_DTPRI/DTSEC; enables dual-CAN redundancy in automotive gateways.
GPIO_C0–C15	General-purpose I/O bank C	Maps to UART2_TX/RX, SPI2_SCLK, S/PDIF_RX/TX, and EPPI_DATA[7:0]; critical for digital audio interface routing.
GPIO_D0–D15	General-purpose I/O bank D	Provides SPORT1/2/3/4 signals, ASRC clock inputs, and PCG outputs; allows independent clock domain management for multi-rate audio streams.
VDDIO_3V3	I/O power supply	3.3 V supply for all digital I/O banks; decoupling required per Analog Devices layout guidelines to maintain signal integrity at 500 MHz core speed.
EPAD	Thermal pad	Exposed copper pad on underside; must be soldered to PCB ground plane for thermal conduction and EMI reduction in automotive environments.

Key Features

Feature	Design Value
Dual SHARC+ SIMD cores	Enables concurrent execution of independent audio processing pipelines (e.g., active noise cancellation + voice recognition) with zero inter-core bus arbitration delay.
Arm Cortex-A5 with NEON/VFPv4	Provides Linux-capable application processing for GUI, network stack, and diagnostics-offloading non-real-time tasks from SHARC+ cores.
FIR/IIR offload engines	Dedicated hardware accelerators reduce CPU load by >70% for standard filter operations, preserving SHARC+ cycles for custom algorithm development.
AEC-Q100 Grade 2 qualification	Validated for operation from −40°C to +105°C ambient, meeting automotive ECU reliability requirements without derating.
4× ASRC pairs	Supports asynchronous sample rate conversion between up to four independent audio domains (e.g., Bluetooth, USB, analog input, speaker output) with <120 dB SNR.

Applications

Automotive Infotainment Head Unit	Professional Audio Digital Mixer
Use Scenario: Real-time audio processing in vehicle head units with multi-source inputs (Bluetooth, USB, tuner), surround sound decoding, and cabin acoustic optimization. IC Role / Device Role / Timing Role: ADSP-21571CSWZ-5 acts as primary audio signal processor, managing ASRC, FIR filtering, and Dolby/DTS decoding while coordinating with Arm core for UI rendering and CAN-based vehicle data exchange. Use Value: Dual SHARC+ cores deliver deterministic latency <50 µs for ANC feedback loops, while LQFP package simplifies thermal design in compact dashboard enclosures.	Use Scenario: High-fidelity digital mixing console handling 64-channel I/O, real-time effects processing, and multitrack recording with sample-accurate synchronization. IC Role / Device Role / Timing Role: ADSP-21571CSWZ-5 serves as central DSP engine executing channel strip processing (EQ, dynamics), reverb algorithms, and matrix routing-all within one audio frame (125 µs at 48 kHz). Use Value: 3 Mb L1 SRAM eliminates external memory bottlenecks, enabling 100% on-chip execution of complex plug-in chains without cycle loss to DRAM access.
Industrial Motor Drive Controller	Medical Ultrasound Beamformer
Use Scenario: Closed-loop field-oriented control (FOC) of PMSM/BLDC motors with real-time current sensing, PWM generation, and safety monitoring. IC Role / Device Role / Timing Role: ADSP-21571CSWZ-5 executes FOC math (Park/Clarke transforms, PI regulators) on SHARC+ cores while Arm core handles EtherCAT communication and HMI updates. Use Value: 500 MHz SHARC+ speed ensures <2 µs loop time for 20 kHz PWM switching, meeting SIL-2 functional safety timing constraints.	Use Scenario: Portable ultrasound systems requiring real-time beamforming, harmonic imaging, and Doppler processing with low power consumption. IC Role / Device Role / Timing Role: ADSP-21571CSWZ-5 performs channel-level delay-and-sum beamforming on SHARC+ cores and handles image reconstruction on Arm core using NEON-accelerated FFTs. Use Value: Integrated 8-channel 12-bit HADC eliminates external ADC components, reducing BOM cost and board area while maintaining >70 dB SNR for diagnostic-grade imaging.

Automotive Infotainment Head Unit

Professional Audio Digital Mixer

Use Scenario: Real-time audio processing in vehicle head units with multi-source inputs (Bluetooth, USB, tuner), surround sound decoding, and cabin acoustic optimization.

IC Role / Device Role / Timing Role: ADSP-21571CSWZ-5 acts as primary audio signal processor, managing ASRC, FIR filtering, and Dolby/DTS decoding while coordinating with Arm core for UI rendering and CAN-based vehicle data exchange.

Use Value: Dual SHARC+ cores deliver deterministic latency <50 µs for ANC feedback loops, while LQFP package simplifies thermal design in compact dashboard enclosures.

Use Scenario: High-fidelity digital mixing console handling 64-channel I/O, real-time effects processing, and multitrack recording with sample-accurate synchronization.

IC Role / Device Role / Timing Role: ADSP-21571CSWZ-5 serves as central DSP engine executing channel strip processing (EQ, dynamics), reverb algorithms, and matrix routing-all within one audio frame (125 µs at 48 kHz).

Use Value: 3 Mb L1 SRAM eliminates external memory bottlenecks, enabling 100% on-chip execution of complex plug-in chains without cycle loss to DRAM access.

Industrial Motor Drive Controller

Medical Ultrasound Beamformer

Use Scenario: Closed-loop field-oriented control (FOC) of PMSM/BLDC motors with real-time current sensing, PWM generation, and safety monitoring.

IC Role / Device Role / Timing Role: ADSP-21571CSWZ-5 executes FOC math (Park/Clarke transforms, PI regulators) on SHARC+ cores while Arm core handles EtherCAT communication and HMI updates.

Use Value: 500 MHz SHARC+ speed ensures <2 µs loop time for 20 kHz PWM switching, meeting SIL-2 functional safety timing constraints.

Use Scenario: Portable ultrasound systems requiring real-time beamforming, harmonic imaging, and Doppler processing with low power consumption.

IC Role / Device Role / Timing Role: ADSP-21571CSWZ-5 performs channel-level delay-and-sum beamforming on SHARC+ cores and handles image reconstruction on Arm core using NEON-accelerated FFTs.

Use Value: Integrated 8-channel 12-bit HADC eliminates external ADC components, reducing BOM cost and board area while maintaining >70 dB SNR for diagnostic-grade imaging.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-core DSP with Arm co-processor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADSP-21573CSWZ-5	Same dual SHARC+ + Arm architecture but in 400-ball CSP_BGA package; adds DDR3/LPDDR1 controller and second EMAC.	Targeted at higher-bandwidth systems requiring external memory expansion or Gigabit Ethernet connectivity.	Select ADSP-21573CSWZ-5 when DDR3 interface or smaller footprint is required; ADSP-21571CSWZ-5 remains optimal for LQFP-based cost-sensitive automotive modules.
ADSP-SC571WYZ-5	Automotive-qualified variant with identical LQFP package and peripherals; differs only in AEC-Q100 Grade 1 rating (−40°C to +125°C) and enhanced screening.	Required for under-hood applications or safety-critical ADAS subsystems demanding extended temperature operation.	Choose ADSP-SC571WYZ-5 for Grade 1 automotive use; ADSP-21571CSWZ-5 satisfies Grade 2 requirements for cabin-mounted infotainment.

Compared with ADSP-21573CSWZ-5, ADSP-21571CSWZ-5 trades DDR3 support and BGA density for LQFP manufacturability and thermal simplicity; versus ADSP-SC571WYZ-5, it offers identical functionality at lower qualification cost for non-under-hood deployments.

Availability

ADSP-21571CSWZ-5 is available at Aetrix Electronics and suitable for automotive infotainment, professional audio equipment, and industrial motor control systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for ADSP-21571CSWZ-5 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, headquartered in Wilmington, MA.

The ADSP-21571CSWZ-5 belongs to the SHARC+ dual-core DSP product line, designed specifically for real-time audio, industrial automation, and automotive applications demanding deterministic floating-point performance and integrated Arm application processing.

FAQ

What is the maximum operating frequency of each SHARC+ core in the ADSP-21571CSWZ-5?

The ADSP-21571CSWZ-5 features two SHARC+ cores, each rated for a maximum operating frequency of 500 MHz. This specification is validated across the full industrial temperature range and enables up to 6 GFLOPS peak computational throughput per core for real-time audio and motor control algorithms.

Does the ADSP-21571CSWZ-5 include on-chip memory with error correction?

Yes, the ADSP-21571CSWZ-5 includes 1 MB of on-chip L2 SRAM with ECC protection, ensuring data integrity in automotive and industrial environments. Its L1 SRAM (3 Mb total) uses parity checking, while the Arm Cortex-A5 L1 and L2 caches also implement parity for fault detection.

How many CAN 2.0 interfaces does the ADSP-21571CSWZ-5 support?

The ADSP-21571CSWZ-5 integrates two fully compliant CAN 2.0 controllers, each supporting bit rates up to 1 Mbps. These are accessible via dedicated GPIO pins in the LQFP package and are commonly used for vehicle network communication in head unit and gateway applications.

Is the ADSP-21571CSWZ-5 qualified for automotive applications?

Yes, the ADSP-21571CSWZ-5 is AEC-Q100 qualified for automotive applications at Grade 2 (−40°C to +105°C). It includes integrated safety features such as watchdog timers, memory protection units, and fault management logic required for automotive ECU deployment.

What package type and thermal characteristics does the ADSP-21571CSWZ-5 use?

The ADSP-21571CSWZ-5 uses a 176-lead LQFP_EP package with an exposed thermal pad. Its θ_JA is 29.5°C/W and θ_JC is 3.2°C/W, enabling reliable operation at 500 MHz in automotive cabins without forced air cooling when properly mounted to a 4-layer PCB with thermal vias.

ADSP-21571CSWZ-5 Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: SHARC®

Package/Case:: 176-LQFP Exposed Pad

Packaging:: Tray

Product Status:: Active

Type:: Fixed/Floating Point

Interface:: CAN, EBI/EMI, Ethernet, DAI, I2C, MMC/SD/SDIO, SPI, SPORT, UART/USART, USB OTG

Clock Rate:: 500MHz

Non-Volatile Memory:: External

On-Chip RAM:: 1.768MB

Voltage - I/O:: 3.30V

Voltage - Core:: 1.15V

Operating Temperature:: -40°C ~ 100°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 176-LQFP-EP (24x24)

ADSP-21571CSWZ-5 FAQ

1.How can I place an order for ADSP-21571CSWZ-5 through Aetrix?

Please submit a Request for Quotation (RFQ) for ADSP-21571CSWZ-5 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for ADSP-21571CSWZ-5 reliable?

The price and inventory of ADSP-21571CSWZ-5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-21571CSWZ-5 is usually 5 days.

3.What payment methods are accepted for ADSP-21571CSWZ-5?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-21571CSWZ-5 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADSP-21571CSWZ-5?

ADSP-21571CSWZ-5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADSP-21571CSWZ-5 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for ADSP-21571CSWZ-5?

For technical support, including ADSP-21571CSWZ-5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-21571CSWZ-5 requirements.

6.How does Aetrix verify that ADSP-21571CSWZ-5 is sourced from the original manufacturer or authorized distributors?

All ADSP-21571CSWZ-5 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADSP-21571CSWZ-5 meets industry standards.

7.What is the process for return or replacement of ADSP-21571CSWZ-5?

All ADSP-21571CSWZ-5 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-21571CSWZ-5, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The ADSP-21571CSWZ-5 part is unused and in its original packaging.

Return procedure for ADSP-21571CSWZ-5:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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