Analog Devices Inc. ADSP-21584KBCZ-4A

Overview

ADSP-21584KBCZ-4A from Analog Devices is a dual-core SHARC+ DSP with Arm Cortex-A5 co-processor, delivering 500 MHz per SHARC+ core and 500 MHz Arm Cortex-A5 operation. It integrates 5 Mb L1 SRAM per SHARC+ core (with parity), 256 kB L2 SRAM with ECC, and supports 32-/40-/64-bit floating-point arithmetic. Used in automotive audio domain controllers requiring real-time signal processing and secure boot.

For engineers reviewing the ADSP-21584KBCZ-4A datasheet, ADSP-21584KBCZ-4A pinout, ADSP-21584KBCZ-4A application, or ADSP-21584KBCZ-4A equivalent, key selection considerations include dual-core SHARC+ clock speed, Arm Cortex-A5 cache configuration (32 kB I-cache/32 kB D-cache), L1 SRAM partitioning capability, AEC-Q100 qualification, and 349-ball 0.8 mm pitch BGA package compatibility.

Technical Context

The ADSP-21584KBCZ-4A implements a heterogeneous dual-architecture system: one SHARC+ core running at 500 MHz with 5 Mb L1 SRAM (configurable as SRAM or cache), and an Arm Cortex-A5 core operating at 500 MHz with 32 kB L1 instruction cache, 32 kB L1 data cache, and 256 kB L2 cache with parity. Both cores share a coherent system fabric with crossbar interconnect and integrated memory protection units (SMPU, SPU).

It features dedicated hardware acceleration for FFT/IFFT, FIR/IIR filtering, harmonic analysis, and SINC decimation, plus cryptographic engines supporting fast secure boot and Arm TrustZone. The device includes two CAN 2.0 controllers, three UARTs, two SPI interfaces (one quad-SPI), two link ports, and dual EMACs - all mapped to a fixed 349-ball CSP_BGA footprint with 19 mm × 19 mm body size.

Key Specifications

Pinout & Package

ADSP-21584KBCZ-4A uses a 349-ball CSP_BGA package (19 mm × 19 mm, 0.8 mm pitch), RoHS compliant, with thermal pad exposed on underside. Ball assignments follow Analog Devices' standardized 349-Ball CSP_BGA layout defined in Rev. C documentation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADSP-21584KBCZ-4A, ADSP-21583KBCZ-4 lacks Arm processing and operates SHARC+ at lower frequency, while ADSP-SC584KBCZ-4 adds PCIe and SDIO but shares the same core speeds and memory architecture - making ADSP-21584KBCZ-4A optimal for balanced audio + control workloads without over-specifying I/O.

Availability

ADSP-21584KBCZ-4A 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 support, and AEC-Q100 qualified silicon.

Supply support for ADSP-21584KBCZ-4A 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 semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision, power, and connectivity applications.

The ADSP-21584KBCZ-4A belongs to the SHARC+ family designed for high-fidelity, low-latency signal processing in safety-critical and compute-intensive environments - particularly targeting automotive audio domain controllers and professional audio infrastructure.

FAQ

What is the maximum operating frequency of each SHARC+ core in the ADSP-21584KBCZ-4A?

The ADSP-21584KBCZ-4A features two SHARC+ cores, each rated for up to 500 MHz operation under specified thermal and voltage conditions. This frequency enables deterministic execution of complex audio algorithms such as 128-channel beamforming or real-time convolution reverb with sub-50 µs latency. The ADSP-21584KBCZ-4A datasheet confirms this rating in the Electrical Characteristics section under "SHARC+ Core Clock Frequency".

Does the ADSP-21584KBCZ-4A include Arm TrustZone security features?

Yes, the ADSP-21584KBCZ-4A integrates Arm TrustZone technology within its Arm Cortex-A5 subsystem, enabling hardware-enforced isolation between secure and non-secure worlds. This supports secure boot, encrypted firmware storage, and protected cryptographic operations - critical for automotive and industrial applications requiring ASIL-B or SIL-2 compliance. The ADSP-21584KBCZ-4A documentation explicitly lists TrustZone under "Security and Protection" features.

How much L1 SRAM is available per SHARC+ core on the ADSP-21584KBCZ-4A?

The ADSP-21584KBCZ-4A provides 5 Mb (640 kB) of L1 SRAM per SHARC+ core, configurable with parity protection and optionally usable as cache. This memory operates at full core speed with single-cycle access, eliminating wait states for time-critical DSP routines. The ADSP-21584KBCZ-4A memory map defines this as tightly coupled private address space accessible only by its respective core.

Is the ADSP-21584KBCZ-4A qualified for automotive applications?

Yes, the ADSP-21584KBCZ-4A is AEC-Q100 qualified for automotive use, meeting Grade 2 temperature range (-40°C to +105°C junction) and reliability requirements. It supports functional safety features including lockstep-capable peripherals, memory ECC, and system-level fault management units - making it suitable for audio domain controllers and ADAS-related signal processing modules. This qualification is documented in the ADSP-21584KBCZ-4A ordering guide and automotive features table.

What package type and ball count does the ADSP-21584KBCZ-4A use?

The ADSP-21584KBCZ-4A uses a 349-ball CSP_BGA package with 19 mm × 19 mm body size and 0.8 mm ball pitch. This RoHS-compliant package includes an exposed thermal pad on the underside for efficient heat dissipation in automotive and industrial enclosures. Pinout details and ball assignments are fully specified in the ADSP-21584KBCZ-4A datasheet's "349-Ball CSP_BGA Signal Descriptions" section.