Analog Devices Inc. ADSP-SC571KSWZ-3

Overview

ADSP-SC571KSWZ-3 from Analog Devices is a dual-core SHARC+ DSP with integrated Arm Cortex-A5 processor, operating at 500 MHz per SHARC+ core and 500 MHz for the Arm core. It delivers 800 DMIPS, features 3 MB L1 SRAM (384 kB per SHARC+ core), 256 kB L2 cache with parity, and supports 32-/40-/64-bit floating-point arithmetic. It targets high-performance automotive audio processing systems requiring real-time signal co-processing and secure boot.

For engineers reviewing the ADSP-SC571KSWZ-3 datasheet, ADSP-SC571KSWZ-3 pinout, ADSP-SC571KSWZ-3 application, or ADSP-SC571KSWZ-3 equivalent, key selection considerations include dual-core SHARC+ clock speed, Arm Cortex-A5 cache configuration, L2 SRAM ECC support, CAN2.0 interface count, and AEC-Q100 qualification status for automotive deployment.

Technical Context

The ADSP-SC571KSWZ-3 implements a heterogeneous dual-domain architecture: one Arm Cortex-A5 core handles OS-driven tasks and system control, while two SHARC+ cores execute deterministic, low-latency DSP algorithms in parallel. The cores share a unified memory map via a system crossbar and DMA subsystem, with hardware coherency maintained between Arm L1/L2 caches and SHARC+ L1 SRAM.

It integrates dedicated acceleration blocks including FIR/IIR offload engines, cryptographic hardware accelerators, ASRCs (4 pairs), S/PDIF Rx/Tx, and two precision clock generators. Peripherals include 2× CAN2.0, 3× UARTs, 2× SPI + 1× Quad-SPI, 3× I²C, USB 2.0 HS, EMAC (10/100), and an 8-channel 12-bit HADC - all accessible through a configurable Signal Routing Unit (SRU).

Key Specifications

Pinout & Package

ADSP-SC571KSWZ-3 uses a 176-lead LQFP_EP package with exposed thermal pad. Pin assignments follow Analog Devices' standardized GPIO multiplexing scheme for the SC57x family, supporting up to 64 GPIO pins plus 20 DAI pins across Ports A–D.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-core DSP + application processor applications.

Compared with ADSP-SC571KSWZ-3, ADSP-SC572KBCZ-3 offers higher memory bandwidth and interconnect flexibility at the cost of increased packaging complexity, while ADSP-SC571KSWZ-2 reduces qualification overhead but forfeits automotive-grade reliability assurance and thermal margin.

Availability

ADSP-SC571KSWZ-3 is available at Aetrix Electronics and suitable for automotive infotainment, professional audio equipment, and industrial motor control systems requiring stable component supply across extended lifecycle commitments.

Supply support for ADSP-SC571KSWZ-3 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.

The ADSP-SC57x product line was developed specifically for automotive and professional audio applications demanding deterministic real-time processing, functional safety compliance, and hardware-enforced security - combining SHARC+ DSP performance with Arm application processing in a single die.

FAQ

What is the maximum operating frequency of each SHARC+ core in the ADSP-SC571KSWZ-3?

The ADSP-SC571KSWZ-3 features two SHARC+ cores, each operating at a maximum frequency of 500 MHz. This is confirmed in Table 2 of the official datasheet (Rev. C, May 2024), which specifies "SHARC+ Core1 (MHz, Max): 500" and "SHARC+ Core2 (MHz, Max): 500" for the ADSP-SC571 variant. The 500 MHz rating applies under specified voltage and temperature conditions per the Electrical Characteristics section.

Does the ADSP-SC571KSWZ-3 support DDR3 memory interfacing?

No, the ADSP-SC571KSWZ-3 does not support DDR3 memory. According to Table 2 in the datasheet, DDR3/DDR2/LPDDR1 Controller (16-bit) is marked "N/A" for ADSP-SC571, confirming its absence. Only ADSP-SC572 and ADSP-SC573 variants include this controller. The ADSP-SC571KSWZ-3 relies on its 1 MB on-chip L2 SRAM with ECC and optional external SPI flash or eMMC via its SDIO interface for program/data storage.

What package type and thermal characteristics does the ADSP-SC571KSWZ-3 use?

The ADSP-SC571KSWZ-3 uses a 176-lead LQFP_EP (exposed pad) package, as stated in the "Package Options" row of Table 2 and confirmed in the Ordering Guide (Page 141). Its thermal design supports AEC-Q100 Grade 2 operation (−40°C to +105°C ambient), with the exposed pad enabling direct thermal conduction to the PCB ground plane. The device includes an integrated Thermal Monitor Unit (TMU) that triggers interrupts at user-configurable thresholds to prevent junction overheating.

How many CAN2.0 interfaces does the ADSP-SC571KSWZ-3 integrate?

ADSP-SC571KSWZ-3 integrates two CAN2.0 controllers, as explicitly listed in the "PERIPHERALS" section and verified in Table 1 ("CAN2.0: 2") and Table 2 of the datasheet. Both controllers support full CAN2.0B protocol compliance, including identifier masking, message buffering, and bit-rate configuration up to 1 Mbps. They are accessible via dedicated CAN_TX/CAN_RX pins and managed through the System Control Unit (SCU) and Fault Management block.

Is the ADSP-SC571KSWZ-3 qualified for automotive applications?

Yes, the ADSP-SC571KSWZ-3 is AEC-Q100 qualified for automotive applications. The datasheet states "AEC-Q100 qualified for automotive applications" in the "ADDITIONAL FEATURES" section (Page 1), and Table 3 confirms its inclusion in the automotive-qualified SC57xW series. The "W" suffix in related part numbers (e.g., ADSP-SC571W) denotes automotive qualification, and ADSP-SC571KSWZ-3 shares identical electrical, thermal, and reliability specifications with those variants per Analog Devices' ordering nomenclature guidelines.