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Analog Devices Inc. ADSP-21571KSWZ-4
- Part No.:
- ADSP-21571KSWZ-4
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 176-LQFP Exposed Pad
- Datasheet:
-
ADSP-21571KSWZ-4.pdf
- Description:
- 2X SHARC, LQFP PACKAGE, 450 MHZ
- Quantity:
- Payment:
- Shipping:
Inventory:1,200
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Product details
Overview
ADSP-21571KSWZ-4 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-21571KSWZ-4 datasheet, ADSP-21571KSWZ-4 pinout, ADSP-21571KSWZ-4 application, or ADSP-21571KSWZ-4 equivalent, key selection criteria include SHARC+ core frequency, L1 SRAM partitioning, CAN interface count, LQFP thermal performance, and AEC-Q100 compliance for safety-critical vehicle infotainment.
Technical Context
The ADSP-21571KSWZ-4 implements a heterogeneous dual-core architecture: two SHARC+ SIMD cores operate independently at up to 500 MHz with dedicated 384 kB L1 SRAM each, while the Arm Cortex-A5 core runs at 500 MHz with 32 kB I-cache, 32 kB D-cache, and 256 kB L2 cache - all sharing a unified system fabric via crossbar and DMA subsystem.
It features hardware-accelerated FIR/IIR filtering engines, cryptographic accelerators, Arm TrustZone security, and integrated safety mechanisms including dual CRC, watchdog timers, and thermal monitoring unit (TMU). Peripherals include 2× CAN2.0, 3× UARTs, 2× SPI + 1× Quad-SPI, 3× I²C, 1× EMAC, and 8-channel 12-bit HADC - all mapped to 64 GPIO + 20 DAI pins in LQFP configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Dual SHARC+ SIMD cores + Arm Cortex-A5, enabling parallel real-time signal processing and high-level OS execution |
| SHARC+ Clock Speed | 500 MHz per core - delivers 2000 MFLOPS peak floating-point performance for audio algorithms |
| L1 Memory | 3 MB total (2 × 384 kB SRAM per core) with parity - supports single-cycle code/data access and configurable cache/SRAM split |
| L2 Memory | 1 MB SRAM with ECC protection - provides shared, error-corrected memory for inter-core data exchange |
| Package | 176-lead LQFP_EP (17 mm × 17 mm) - enables cost-effective PCB layout with exposed thermal pad for automotive thermal management |
| Automotive Qualification | AEC-Q100 Grade 2 (−40°C to +105°C) - validated for under-hood infotainment and ADAS sensor fusion applications |
| Interface Count | 2× CAN2.0 controllers - supports dual-bus vehicle network communication without external transceivers |
Pinout & Package
ADSP-21571KSWZ-4 uses a 176-lead LQFP_EP package with exposed thermal pad. Pin assignments follow Analog Devices' standardized multiplexing scheme for GPIO, DAI, and peripheral signals across Port A–D.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_IO_1P8 | I/O power supply | 1.8 V supply for digital I/O banks - requires local decoupling for noise-sensitive audio interfaces |
| CLKIN | External clock input | Accepts 1–50 MHz crystal or oscillator reference for system clock generation and PLL synchronization |
| CAN0_TX / CAN0_RX | CAN controller differential pair | Direct connection to external CAN transceiver - supports ISO 11898-2 compliant bus signaling |
| DAI_PIN0–DAI_PIN19 | Digital audio interface pins | Configurable as SPORT, S/PDIF, ASRC, or PCG outputs - enables multi-format audio routing without FPGA glue logic |
| GPIO_A0–GPIO_A15 | General-purpose I/O bank | Programmable as inputs/outputs with interrupt capability - used for button detection, LED control, or status signaling in head unit designs |
Key Features
| Feature | Design Value |
|---|---|
| Dual SHARC+ cores with SIMD execution | Enables concurrent execution of independent audio streams (e.g., active noise cancellation + voice recognition) without resource contention |
| Hardware FIR/IIR offload engines | Offloads up to 90% of filter computation from CPU cores - preserves SHARC+ bandwidth for dynamic algorithm updates |
| Arm TrustZone security extension | Creates isolated secure world for boot firmware and cryptographic keys - prevents unauthorized access to IP-protected audio codecs |
| Integrated 8-channel 12-bit HADC | Supports direct analog sensor input (microphones, temperature, voltage) - eliminates need for external ADC in compact automotive modules |
| Thermal Monitor Unit (TMU) | On-die temperature sensing with programmable thresholds - triggers automatic clock scaling or shutdown before junction exceeds 125°C |
Applications
| Automotive Infotainment Head Unit | Professional Audio Digital Mixer |
|---|---|
Use Scenario: Central multimedia processor in vehicle head units handling Bluetooth audio streaming, navigation voice guidance, and rear-seat entertainment. IC Role / Device Role / Timing Role: Dual SHARC+ cores process real-time audio effects and echo cancellation; Arm Cortex-A5 runs Linux-based UI and connectivity stacks. Use Value: Single-chip integration reduces BOM count by 3+ ICs and eliminates inter-processor latency in multi-stream audio mixing. | Use Scenario: High-fidelity digital mixer supporting 32-channel input, parametric EQ, dynamics processing, and USB audio class 2.0 streaming. IC Role / Device Role / Timing Role: SHARC+ cores execute low-latency FIR filters and ASRC sample-rate conversion; DAI pins route I²S/TDM streams to codec ICs. Use Value: 500 MHz SHARC+ clock ensures sub-50 µs processing latency for live monitoring paths with zero audible artifacts. |
| Industrial Motor Control Gateway | Medical Ultrasound Beamformer |
Use Scenario: Fieldbus gateway connecting CANopen drives, EtherCAT sensors, and HMI displays in factory automation systems. IC Role / Device Role / Timing Role: Arm Cortex-A5 manages protocol translation and web server; SHARC+ cores perform real-time PID loop compensation and vibration analysis. Use Value: Dual CAN2.0 controllers enable simultaneous connection to motor drives and safety PLCs without external bridge ICs. | Use Scenario: Portable ultrasound device requiring beamforming, RF demodulation, and Doppler processing in handheld form factor. IC Role / Device Role / Timing Role: SHARC+ cores execute time-critical delay-and-sum beamforming; HADC digitizes 8-channel transducer signals at 40 MSPS aggregate rate. Use Value: On-chip 12-bit HADC with programmable gain eliminates discrete front-end amplifiers and reduces analog component count by 12+ parts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-core DSP + application processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADSP-21573KBCZ-4 | 400-ball CSP_BGA package; adds DDR3/LPDDR1 controller and second Link Port | Targeted for space-constrained designs requiring external memory expansion and high-speed inter-processor links | Select when board area is limited and DDR3 bandwidth >1.6 GB/s is required for video/audio buffering |
| ADSP-SC571WYZ-4 | Same LQFP package but includes Arm Cortex-A5 core running at 500 MHz with NEON/VFPv4 | Optimized for Linux-based applications needing rich OS services alongside DSP acceleration | Select when full POSIX-compliant OS support and USB 2.0 HS host functionality are mandatory |
Compared with ADSP-21571KSWZ-4, ADSP-21573KBCZ-4 trades LQFP manufacturability for higher memory bandwidth and density, while ADSP-SC571WYZ-4 adds Arm application-layer capability at the cost of reduced SHARC+ L1 SRAM allocation (1 × 384 kB vs. 2 × 384 kB).
Availability
ADSP-21571KSWZ-4 is available at Aetrix Electronics and suitable for automotive infotainment, professional audio equipment, industrial gateways, and medical imaging systems requiring stable component supply and long-term lifecycle assurance.
Supply support for ADSP-21571KSWZ-4 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 DSP technology, headquartered in Wilmington, MA, with design centers worldwide and over 50 years of semiconductor innovation.
The ADSP-21571KSWZ-4 belongs to the SHARC+ family - engineered specifically for deterministic, low-latency floating-point processing in safety-critical automotive and high-fidelity audio systems where computational throughput and functional safety coexist.
FAQ
What is the maximum operating temperature range for the ADSP-21571KSWZ-4?
The ADSP-21571KSWZ-4 is qualified to AEC-Q100 Grade 2 specifications, supporting continuous operation from −40°C to +105°C ambient temperature. Its integrated Thermal Monitor Unit (TMU) provides real-time die temperature feedback and supports automatic thermal throttling to prevent junction exceedance beyond 125°C. This makes ADSP-21571KSWZ-4 suitable for under-dash automotive environments where thermal cycling and sustained high-load operation are common.
Does the ADSP-21571KSWZ-4 support booting from external SPI flash?
Yes, the ADSP-21571KSWZ-4 supports fast secure boot from external SPI flash memory using its dedicated boot ROM and cryptographic engine. The boot sequence validates signed firmware images prior to execution, ensuring IP protection and preventing unauthorized code injection. This capability is enabled by default in the ADSP-21571KSWZ-4's ROM bootloader and requires no external configuration - critical for certified automotive software updates.
How many independent CAN 2.0 interfaces does the ADSP-21571KSWZ-4 provide?
The ADSP-21571KSWZ-4 integrates two fully independent CAN 2.0 controllers (CAN0 and CAN1), each with dedicated TX/RX pins and message RAM buffers. Both controllers support bit rates up to 1 Mbps and comply with ISO 11898-1 physical layer requirements. These interfaces operate concurrently without arbitration conflict, enabling ADSP-21571KSWZ-4 to serve as a dual-bus gateway in vehicle networks - for example, managing powertrain CAN and body-control CAN simultaneously.
Can the SHARC+ cores in the ADSP-21571KSWZ-4 run different firmware images?
Yes, each SHARC+ core in the ADSP-21571KSWZ-4 has private L1 memory space and independent reset vectors, allowing completely separate firmware images to be loaded and executed. Core 1 and Core 2 can run distinct algorithms - such as one performing active noise cancellation while the other handles voice activity detection - with no shared memory dependency. Inter-core communication is supported via L2 SRAM, mailbox registers, or hardware semaphores, ensuring deterministic real-time behavior in ADSP-21571KSWZ-4 deployments.
Is the ADSP-21571KSWZ-4 pin-compatible with other ADSP-2157x variants?
No, the ADSP-21571KSWZ-4 is not pin-compatible with ADSP-21573 or ADSP-SC57x variants due to differing package types (176-LQFP vs. 400-BGA) and peripheral allocations. While it shares identical pin numbering and signal definitions within the 176-LQFP footprint with ADSP-21571WYZ-4 and ADSP-21571KSWZ-3, migration to ADSP-21573KBCZ-4 requires complete PCB redesign. Always verify ball/lead assignments against Analog Devices' "176-Lead LQFP Lead Assignments" document for ADSP-21571KSWZ-4.
ADSP-21571KSWZ-4 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:
- 450MHz
- Non-Volatile Memory:
- External
- On-Chip RAM:
- 1.768MB
- Voltage - I/O:
- 3.30V
- Voltage - Core:
- 1.10V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 176-LQFP-EP (24x24)
ADSP-21571KSWZ-4 FAQ
1.How can I place an order for ADSP-21571KSWZ-4 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-21571KSWZ-4 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-21571KSWZ-4 reliable?
The price and inventory of ADSP-21571KSWZ-4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-21571KSWZ-4 is usually 5 days.
3.What payment methods are accepted for ADSP-21571KSWZ-4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-21571KSWZ-4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-21571KSWZ-4?
ADSP-21571KSWZ-4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-21571KSWZ-4 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-21571KSWZ-4?
For technical support, including ADSP-21571KSWZ-4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-21571KSWZ-4 requirements.
6.How does Aetrix verify that ADSP-21571KSWZ-4 is sourced from the original manufacturer or authorized distributors?
All ADSP-21571KSWZ-4 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-21571KSWZ-4 meets industry standards.
7.What is the process for return or replacement of ADSP-21571KSWZ-4?
All ADSP-21571KSWZ-4 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-21571KSWZ-4, 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-21571KSWZ-4 part is unused and in its original packaging.
Return procedure for ADSP-21571KSWZ-4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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