Analog Devices Inc. ADSP-21567KBCZ6

Overview

ADSP-21567KBCZ6 from Analog Devices is a SHARC+ single-core floating-point DSP operating at up to 800 MHz, featuring 5 MB of L1 SRAM with parity, 1024 kB L2 SRAM with ECC, and integrated FIR/IIR accelerators running at full core speed. It supports 32-/40-/64-bit floating-point and 32-bit fixed-point arithmetic, and targets high-fidelity automotive audio processing including active noise cancellation (ANC) and digital cockpit systems.

For engineers reviewing the ADSP-21567KBCZ6 datasheet, ADSP-21567KBCZ6 pinout, ADSP-21567KBCZ6 application, or ADSP-21567KBCZ6 equivalent, key selection criteria include its AEC-Q100 qualification, 400-ball CSP_BGA (17 mm × 17 mm, 0.8 mm pitch) package, dual ASRC pairs, 2×4 full SPORTs, and hardware crypto acceleration for secure boot - all critical for real-time, safety-aware embedded signal processing.

Technical Context

The ADSP-21567KBCZ6 implements a SIMD SHARC+ core with two parallel processing elements (PEx/PEy), each equipped with ALU, multiplier, shifter, and 40-bit register file, enabling true single-instruction, multiple-data execution. Its memory subsystem includes four configurable L1 SRAM blocks (total 5 MB) with independent DM/PM buses supporting simultaneous instruction fetch and dual data transfers per cycle.

System-level integration includes a dedicated SHARC fabric connecting FIR/IIR accelerators directly to L1 memory at CCLK speed, bypassing system fabric latency; a 16-bit DDR3/DDR3L L3 interface; and a comprehensive peripheral set including 2× DAI, 2× S/PDIF Rx/Tx, 2×4 ASRC pairs, 6× I²C, 3× UARTs, and Arm CoreSight debug/trace support.

Key Specifications

Pinout & Package

ADSP-21567KBCZ6 uses a 400-ball CSP_BGA package (17 mm × 17 mm, 0.8 mm pitch, RoHS compliant). Pin assignments are defined in Analog Devices' ADSP-2156x 400-Ball BGA Ball Assignments (Rev. D, pp. 89–95).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance audio DSP applications.

Compared with ADSP-21567KBCZ6, ADSP-21569KBCZ6 delivers 25% higher deterministic compute throughput within identical thermal and pinout constraints, while ADSP-SC589KWSZ trades raw single-thread performance for dual-core flexibility and lower package cost - making it suitable for cost-sensitive industrial audio where DDR expansion is unnecessary.

Availability

ADSP-21567KBCZ6 is available at Aetrix Electronics and suitable for automotive audio amplifier modules, active noise cancellation systems, and digital cockpit head units requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for ADSP-21567KBCZ6 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 deep expertise in precision signal processing and automotive-grade reliability.

The ADSP-21567KBCZ6 belongs to the SHARC+ family - engineered specifically for deterministic, low-latency floating-point audio and sensor processing in safety-critical automotive and professional audio systems.

FAQ

What is the maximum operating frequency of the ADSP-21567KBCZ6?

The ADSP-21567KBCZ6 is rated for a maximum core frequency of 800 MHz under automotive temperature conditions (−40°C to +125°C junction). This speed grade is confirmed in the official Analog Devices ordering guide (Rev. D, p. 102) and enables sustained 64-bit floating-point performance of 6400 MFLOPS. The ADSP-21567KBCZ6 achieves this without requiring external cooling beyond standard PCB thermal vias and copper pour.

Does the ADSP-21567KBCZ6 support DDR3 memory interfacing?

Yes, the ADSP-21567KBCZ6 integrates a dedicated 16-bit DDR3/DDR3L controller as part of its L3 memory interface. This interface operates independently of the L1/L2 SRAM subsystem and supports data rates up to 800 MT/s. It is designed for external high-bandwidth audio buffer storage and is electrically compatible with JEDEC-standard DDR3L components, as specified in the "Additional Features" section (Rev. D, p. 1).

Is the ADSP-21567KBCZ6 qualified for automotive applications?

Yes, the ADSP-21567KBCZ6 is explicitly AEC-Q100 qualified for automotive applications (Grade 2: −40°C to +105°C ambient, or Grade 0: −40°C to +150°C case per device marking). This qualification covers thermal cycling, humidity testing, and ESD robustness, and is documented in the "Applications" section (Rev. D, p. 1) and Automotive Products appendix (p. 101).

How much on-chip memory does the ADSP-21567KBCZ6 include?

The ADSP-21567KBCZ6 includes 5 MB of on-chip L1 SRAM with parity protection (configurable as cache or SRAM) and 1024 kB of L2 SRAM with ECC protection. These memory blocks are physically separate, with L1 accessible in a single cycle and L2 accessed via multicycle reads/writes. Total usable memory for real-time audio buffers and coefficient tables exceeds 6 MB without external DRAM.

What development tools are supported for the ADSP-21567KBCZ6?

Analog Devices provides full toolchain support for the ADSP-21567KBCZ6, including CrossCore Embedded Studio (CCES) IDE, SHARC+ compiler (based on LLVM), cycle-accurate simulator, and EZ-KIT evaluation hardware (e.g., EVAL-ADSP-21569). Debugging uses JTAG/SWD via Arm CoreSight infrastructure, and production programming leverages the on-chip bootloader with SPI/OSPI/DDR boot modes.