ADSP-21368 Discontinued SHARC DSP: Stock and Replacement Guide
The ADSP-21368 is a 32-/40-bit floating-point SHARC processor designed for professional audio and high-performance signal processing. It combines a 400MHz SIMD core with dedicated audio interfaces and an external memory controller.
Analog Devicesofficially lists the ADSP-21368 as obsolete. Legacy inventory may still be required for production support, audio equipment repair and existing DSP boards.
ADSP-21368 Specifications
| Parameter | Specification |
| Manufacturer | Analog Devices |
| Lifecycle | Obsolete |
| Architecture | 32-/40-bit floating-point SIMD SHARC |
| Maximum speed | 400MHz |
| Peak performance | 2.4 GFLOPS |
| On-chip SRAM | 2Mbit |
| On-chip ROM | 6Mbit customer-definable ROM |
| Audio interfaces | 8 SPORTs, S/PDIF Tx/Rx and asynchronous SRC |
| General interfaces | 2 SPI, 2 UART and I²C-compatible TWI |
| External memory | SDRAM, SRAM and Flash interface |
| DMA channels | 34 |
| Package | 256-ball BGA_ED |
| Temperature range | 0°C to +70°C |
Discontinued ADSP-21368 Part Numbers
| Part number | Speed | Package |
| ADSP-21368KBPZ-2A | 333MHz | 256-ball BGA_ED |
| ADSP-21368KBPZ-3A | 400MHz | 256-ball BGA_ED |
ADSP-21368 Replacement Options
| Model | Status | Main difference | Migration level |
| ADSP-21369 | Production | Similar SHARC core, memory and audio peripherals | Closest family option |
| ADSP-21469 | Production | 450MHz core, 5Mbit RAM and hardware accelerators | PCB and firmware redesign |
FAQ
Is ADSP-21368 discontinued?
Yes. Analog Devices lists ADSP-21368 as obsolete and no longer available from normal production.
What is the difference between ADSP-21368KBPZ-2A and ADSP-21368KBPZ-3A?
The KBPZ-2A operates at 333MHz, while the KBPZ-3A supports up to 400MHz. Both use a 256-ball BGA package.
Can ADSP-21369 directly replace ADSP-21368?
Not automatically. The processors are closely related, but shared-memory support, pin functions, ROM configuration and firmware must be checked.
Can ADSP-21469 replace ADSP-21368?
ADSP-21469 is suitable for redesigns but uses a different package and memory architecture. It is not a drop-in replacement.
What information is needed for an ADSP-21368 quote?
Provide the full ordering code, quantity, date-code preference, device marking and delivery destination.
Request an ADSP-21368 Quote
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