Analog Devices Inc. ADSP-21594BBPZ8

Overview

ADSP-21594BBPZ8 from Analog Devices is a dual-core SHARC+ floating-point DSP with integrated Arm Cortex-A5 application processor, delivering up to 1 GHz per SHARC+ core and 1 GHz/1600 DMIPS on the Arm core. It features 2 × 640 kB L1 SRAM with parity, 2 MB L2 SRAM with ECC, DDR3/DDR3L interface, and dual CAN FD controllers - deployed in automotive audio amplifiers, digital cockpits, and ANC/RNC systems.

For engineers reviewing the ADSP-21594BBPZ8 datasheet, ADSP-21594BBPZ8 pinout, ADSP-21594BBPZ8 application, or ADSP-21594BBPZ8 equivalent, key selection criteria include dual-core SHARC+ clock speed (1 GHz), Arm Cortex-A5 performance (1600 DMIPS), L1 SRAM configuration (2 × 640 kB), HPC BGA package compatibility, and automotive AEC-Q100 qualification.

Technical Context

The ADSP-21594BBPZ8 implements a heterogeneous dual-processor architecture: two independent SHARC+ cores (each up to 1 GHz) handle real-time floating-point signal processing with 32-/40-/64-bit IEEE support, while the Arm Cortex-A5 core (up to 1 GHz, NEON/VFPv4-D16) manages OS-level tasks, connectivity, and system control. Memory coherency is maintained via shared L2 cache (256 kB) and system fabric interconnect.

Its high-peripheral-count (HPC) 400-ball BGA_ED package integrates 2× CAN FD, 4× UARTs, 2× EMAC, 8× full SPORTs, 2× S/PDIF, 8× ASRCs, and 135 GPIOs - all routed through a configurable DAI subsystem with SRU/DRU routing logic and hardware accelerators for FIR/IIR filtering at up to 1 GHz.

Key Specifications

Pinout & Package

ADSP-21594BBPZ8 uses a 400-ball BGA_ED package (17 mm × 17 mm, 0.8 mm pitch), designated as High Peripheral Count (HPC) variant. Ball assignments are defined in Analog Devices' Rev. E datasheet, Section "ADSP-21594/ADSP-SC59x 400-Ball HPC BGA Ball Assignments" (pp. 131–137).

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADSP-21593BBPZ8 and ADSP-SC594KCPZ-4, the ADSP-21594BBPZ8 delivers maximum peripheral density and highest Arm clock speed - making it optimal for full-featured automotive head units and professional audio systems requiring simultaneous high-bandwidth I/O and compute.

Availability

ADSP-21594BBPZ8 is available at Aetrix Electronics and suitable for automotive audio amplifiers, digital cockpit infotainment systems, and professional audio mixing consoles requiring stable component supply across long production lifecycles.

Supply support for ADSP-21594BBPZ8 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.

The ADSP-21594BBPZ8 belongs to the SHARC+ family - designed specifically for high-fidelity, low-latency audio and industrial signal processing applications demanding deterministic floating-point performance and heterogeneous multicore flexibility.

FAQ

What is the maximum operating frequency of each SHARC+ core in the ADSP-21594BBPZ8?

The ADSP-21594BBPZ8 supports a maximum SHARC+ core frequency of 1 GHz per core, as confirmed in Table 1 of the Rev. E datasheet. This speed grade is validated under specified thermal and voltage conditions (VDD = 1.1 V, T_A ≤ +105°C). The ADSP-21594BBPZ8 does not support the 800 MHz/1000 MHz dual-speed option found in some variants - its single speed grade is fixed at 1000 MHz.

Does the ADSP-21594BBPZ8 include hardware cryptographic acceleration?

Yes, the ADSP-21594BBPZ8 includes a dedicated cryptographic hardware engine supporting AES-128/256, SHA-256, RSA, and ECC operations. This engine is accessible via the security subsystem and integrates with Arm TrustZone to isolate key material and accelerate secure boot - a requirement for AEC-Q100 automotive compliance and IP protection.

Is the ADSP-21594BBPZ8 pin-compatible with the ADSP-2156x series?

No, the ADSP-21594BBPZ8 is not pin-compatible with the ADSP-2156x series. As stated in Table 1 footnote 7–8, ADSP-21594BBPZ8 uses the High Peripheral Count (HPC) BGA_ED package, whereas ADSP-2156x devices use Low Peripheral Count (LPC) packages. Pin mapping, peripheral assignment, and ball function definitions differ significantly between HPC and LPC variants.

What memory types and interfaces does the ADSP-21594BBPZ8 support externally?

The ADSP-21594BBPZ8 supports external DDR3 and DDR3L SDRAM via its 16-bit L3 interface, with timing compliance to JEDEC standards. It does not support LPDDR, DDR4, or NAND/NOR flash directly - those require external controllers or FPGA bridging. Internal memory includes 2 × 640 kB L1 SRAM (per SHARC+ core), 2 MB L2 SRAM with ECC, and 64 kB Arm boot ROM.

How many CAN FD interfaces does the ADSP-21594BBPZ8 provide, and what is their data rate capability?

The ADSP-21594BBPZ8 provides two CAN FD interfaces (CAN0 and CAN1), both compliant with ISO 11898-1:2015. Each supports arbitration bit rates up to 1 Mbps and data bit rates up to 5 Mbps, with hardware message filtering, FIFO buffering, and protocol acceleration - enabling robust vehicle network integration in automotive audio and ADAS subsystems.