Analog Devices Inc. ADSP-BF526KBCZ-3
- Part No.:
- ADSP-BF526KBCZ-3
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 289-LFBGA, CSPBGA
- Datasheet:
-
ADSP-BF526KBCZ-3.pdf
- Description:
- IC DSP CTRLR 300MHZ 289CSBGA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
ADSP-BF526KBCZ-3 from Analog Devices is a Blackfin embedded processor designed for real-time signal processing in resource-constrained networked systems. It operates at up to 400 MHz, integrates 132 KB on-chip memory (48 KB L1 instruction SRAM, 64 KB L1 data SRAM, 4 KB scratchpad, 32 KB boot ROM), and features USB 2.0 OTG, dual SPORTs, two UARTs with IrDA, TWI, SPI, PPI, NAND flash controller, and 48 GPIOs - all in a 289-ball CSP_BGA package.
For engineers reviewing the ADSP-BF526KBCZ-3 datasheet, ADSP-BF526KBCZ-3 pinout, ADSP-BF526KBCZ-3 application, or ADSP-BF526KBCZ-3 equivalent, key selection criteria include its 400 MHz fixed-frequency operation (no internal voltage regulator), 289-ball CSP_BGA mechanical compatibility, Ethernet MAC absence (vs. BF527), and full code compatibility within the ADSP-BF52x family for legacy Blackfin migration paths.
Technical Context
The ADSP-BF526KBCZ-3 implements the Blackfin MSA architecture with dual 16-bit MACs, two 40-bit ALUs, four 8-bit video ALUs, and a 40-bit shifter - enabling simultaneous 16-bit multiply-accumulate and SIMD multimedia operations. Its modified Harvard memory architecture includes configurable L1 SRAM/cache banks and unified 32-bit address space access to peripherals and external memory.
It supports glueless SDRAM and asynchronous memory expansion via EBIU, features a dedicated NAND flash controller with hardware ECC, and uses a hierarchical interrupt system with 54 inputs routed through SIC/CEC stages. Unlike BF523/525/527 variants, it lacks an on-chip voltage regulator and IEEE 802.3 Ethernet MAC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Frequency | 400 MHz maximum - fixed clock rate; no dynamic frequency scaling due to absence of on-chip voltage regulator. |
| L1 Instruction Memory | 48 KB SRAM + 16 KB cache - enables zero-wait-state execution of tightly coupled code critical for real-time DSP loops. |
| L1 Data Memory | 64 KB SRAM (32 KB ×2 banks) - supports dual-bank parallel access for ping-pong buffering in audio/video streaming. |
| On-Chip Peripherals | USB 2.0 OTG (integrated PHY), dual SPORTs (8× I²S channels), PPI (ITU-R BT.656), NFC, TWI, SPI, 2× UARTs - eliminates need for external interface bridge ICs in media gateway designs. |
| Package | 289-ball CSP_BGA (12 mm × 12 mm, 0.8 mm pitch) - provides high I/O density and thermal performance for compact industrial control modules. |
| Memory Management | MMU with task-level protection - enforces isolation between firmware partitions in safety-critical applications like automotive telematics. |
| Boot Sources | External SPI/TWI flash, NAND flash, or host devices (SPI/TWI/UART) - enables field-upgradable firmware without JTAG dependency. |
Pinout & Package
ADSP-BF526KBCZ-3 is housed in a 289-ball CSP_BGA package (12 mm × 12 mm, 0.8 mm ball pitch) with 1.2 mm height, RoHS-compliant matte tin finish, and JEDEC-standard thermal pad layout. Ball assignments follow Analog Devices' documented 289-Ball CSP_BGA mapping (Rev. D, Page 80).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDINT | Core power supply | 1.2 V ±3% input - powers digital core logic; requires low-noise regulation due to high-speed switching noise sensitivity. |
| VDDIO | I/O power supply | 3.3 V ±5% input - supplies all GPIO, peripheral I/O, and external memory interface pins; supports mixed-voltage system interfacing. |
| CLKIN | External clock input | Accepts 1–50 MHz crystal or CMOS clock - feeds on-chip PLL to generate 400 MHz core clock; no internal oscillator. |
| RESET | Active-low reset input | Synchronous deassertion required - initiates full hardware reset including register initialization and boot ROM entry sequence. |
| BOOT_CFG[2:0] | Boot mode configuration | Three-pin strapping - selects boot source (SPI flash, NAND, UART host, etc.) before internal boot kernel executes. |
| DATA[15:0] | External memory data bus | 16-bit bidirectional bus - connects directly to SDRAM or asynchronous memory without glue logic; supports byte-wide accesses. |
Key Features
| Feature | Design Value |
|---|---|
| Code Compatibility | Binary-compatible across entire ADSP-BF52x family - allows reuse of compiled firmware across BF522/BF524/BF526 variants without recompilation. |
| Lockbox Secure Technology | Hardware-accelerated AES/SHA with OTP memory - enables secure boot and cryptographic key storage resistant to physical probing attacks. |
| DMA Architecture | 12 peripheral DMAs + 2 memory-to-memory DMAs - offloads CPU from data movement, enabling concurrent processing and I/O in real-time audio pipelines. |
| Real-Time Clock (RTC) | Independent 32-bit counter with battery backup support - maintains time-of-day during system sleep modes without CPU intervention. |
| GPIO Hysteresis Control | Programmable Schmitt-trigger input threshold - suppresses noise on industrial sensor inputs without external RC filtering components. |
Applications
| Industrial Video Gateway | Automotive Infotainment Head Unit |
|---|---|
Use Scenario: Aggregating and transcoding multiple camera feeds (e.g., rear-view, surround-view) into a single HDMI output for display in factory automation or ADAS test rigs. IC Role / Device Role / Timing Role: Primary media processor executing video scaling, color space conversion, and USB OTG streaming - leveraging PPI for raw sensor input and dual SPORTs for audio synchronization. Use Value: 400 MHz deterministic timing ensures sub-30 ms end-to-end latency; 289-ball BGA enables dense PCB layout with minimal trace length for high-speed video signals. |
Use Scenario: Central infotainment controller managing Bluetooth audio, navigation map rendering, and vehicle telemetry in entry-level automotive platforms. IC Role / Device Role / Timing Role: Real-time OS host running Linux-based middleware - using TWI for sensor fusion, UART for CAN gateway bridging, and NAND flash for persistent app storage. Use Value: Lockbox OTP secures OEM-specific firmware keys; MMU isolates safety-critical CAN stack from non-critical UI processes per ISO 26262 ASIL-B requirements. |
| Networked Audio DSP Module | Portable Medical Signal Analyzer |
Use Scenario: Rack-mounted VoIP gateway performing echo cancellation, packet jitter compensation, and multi-channel codec transcoding for enterprise telephony. IC Role / Device Role / Timing Role: Dedicated DSP engine executing fixed-point FFTs and adaptive filters - utilizing dual SPORTs for TDM voice streams and USB OTG for PC-side configuration. Use Value: Dual 16-bit MACs deliver 1.6 GMAC/s throughput; 64 KB L1 data SRAM accommodates 128-sample FIR filter coefficients with zero external memory access. |
Use Scenario: Handheld ECG analyzer acquiring, filtering, and displaying cardiac waveforms with wireless telemetry to clinician tablets. IC Role / Device Role / Timing Role: Low-power signal acquisition hub - using GPIOs for electrode contact detection, RTC for timestamping, and SPI for SD card logging. Use Value: 400 MHz operation balances processing headroom against battery life; programmable GPIO hysteresis rejects 50/60 Hz mains interference without analog front-end redesign. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar embedded signal processing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADSP-BF524KBCZ-4 | Same 289-ball CSP_BGA package and 400 MHz speed, but with reduced peripheral set: no USB OTG or PPI. | Suitable for cost-sensitive motor control where only SPORTs, UARTs, and timers are needed - not viable for video/audio interfaces. | Select when USB/PPI are unnecessary and BOM cost reduction is prioritized over future feature scalability. |
| ADSP-BF527KBCZ-5 | 600 MHz operation, integrated voltage regulator, and added 10/100 Ethernet MAC - differs in thermal profile and power sequencing requirements. | Required for networked edge analytics requiring TCP/IP stack offload; incompatible with ADSP-BF526KBCZ-3's 400 MHz clock tree. | Choose only if Ethernet connectivity and higher compute throughput justify redesign of power delivery and thermal management. |
Compared with ADSP-BF526KBCZ-3, ADSP-BF524KBCZ-4 sacrifices interface flexibility for lower unit cost, while ADSP-BF527KBCZ-5 demands board-level changes for voltage regulation and Ethernet magnetics - making ADSP-BF526KBCZ-3 the optimal balance of I/O richness, deterministic timing, and drop-in upgrade path from earlier BF522 designs.
Availability
ADSP-BF526KBCZ-3 is available at Aetrix Electronics and suitable for industrial video gateways, automotive infotainment head units, and networked audio DSP modules requiring stable component supply across extended production lifecycles.
Supply support for ADSP-BF526KBCZ-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 semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision instrumentation, industrial automation, and communications infrastructure.
The ADSP-BF52x product line delivers integrated signal processing solutions targeting real-time embedded applications in automotive, industrial, and medical markets - emphasizing deterministic latency, code portability, and peripheral richness without requiring external co-processors.
FAQ
What is the maximum operating frequency of the ADSP-BF526KBCZ-3?
The ADSP-BF526KBCZ-3 operates at a fixed maximum frequency of 400 MHz. This is specified in the "Operating Conditions for ADSP-BF522/ADSP-BF524/ADSP-BF526 Processors" section (Page 28) of the Rev. D datasheet. Unlike BF523/525/527 variants, it does not include an on-chip voltage regulator, so dynamic frequency scaling is not supported - the 400 MHz rating reflects its guaranteed performance under defined thermal and voltage conditions.
Does the ADSP-BF526KBCZ-3 include an Ethernet MAC?
No, the ADSP-BF526KBCZ-3 does not include an Ethernet MAC. According to Table 1 (Page 3) of the Rev. D datasheet, Ethernet MAC functionality is only present in the ADSP-BF527 variant. The ADSP-BF526KBCZ-3 retains USB 2.0 OTG, dual SPORTs, PPI, and TWI - making it suitable for applications where wired networking is handled externally or via USB-to-Ethernet bridges.
What package type and ball count does the ADSP-BF526KBCZ-3 use?
The ADSP-BF526KBCZ-3 uses a 289-ball CSP_BGA package with 12 mm × 12 mm footprint and 0.8 mm ball pitch, as confirmed in the "Package Information" section (Page 38) and "289-Ball CSP_BGA Ball Assignment" diagram (Page 80) of the Rev. D datasheet. This package is mechanically and thermally compatible with other ADSP-BF52x variants offered in the same form factor.
Can the ADSP-BF526KBCZ-3 boot from NAND flash?
Yes, the ADSP-BF526KBCZ-3 supports NAND flash booting via its integrated NAND Flash Controller (NFC). The Rev. D datasheet (Page 6) confirms hardware ECC, page-aligned access, and DMA-assisted transfers - enabling reliable boot code loading from SLC NAND devices with 256/512-byte pages. Boot mode is selected via BOOT_CFG[2:0] strapping pins.
Is the ADSP-BF526KBCZ-3 qualified for automotive applications?
No, the ADSP-BF526KBCZ-3 is not automotive-qualified. The Rev. D datasheet explicitly states "Qualified for Automotive Applications" applies only to ADSP-BF523/ADSP-BF525/ADSP-BF527 processors (Page 1). The ADSP-BF526KBCZ-3 is rated for industrial temperature range (−40°C to +85°C) and intended for non-safety-critical automotive infotainment subsystems, not ASIL-rated powertrain or chassis control.
ADSP-BF526KBCZ-3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- Blackfin®
- Package/Case:
- 289-LFBGA, CSPBGA
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- Fixed Point
- Interface:
- DMA, Ethernet, I2C, PPI, SPI, SPORT, UART, USB
- Clock Rate:
- 300MHz
- Non-Volatile Memory:
- ROM (32kB)
- On-Chip RAM:
- 132kB
- Voltage - I/O:
- 1.8V, 2.5V, 3.3V
- Voltage - Core:
- 1.30V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 289-CSPBGA (12x12)
ADSP-BF526KBCZ-3 FAQ
1.How can I place an order for ADSP-BF526KBCZ-3 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-BF526KBCZ-3 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADSP-BF526KBCZ-3 reliable?
The price and inventory of ADSP-BF526KBCZ-3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-BF526KBCZ-3 is usually 5 days.
3.What payment methods are accepted for ADSP-BF526KBCZ-3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-BF526KBCZ-3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-BF526KBCZ-3?
ADSP-BF526KBCZ-3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-BF526KBCZ-3 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADSP-BF526KBCZ-3?
For technical support, including ADSP-BF526KBCZ-3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-BF526KBCZ-3 requirements.
6.How does Aetrix verify that ADSP-BF526KBCZ-3 is sourced from the original manufacturer or authorized distributors?
All ADSP-BF526KBCZ-3 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADSP-BF526KBCZ-3 meets industry standards.
7.What is the process for return or replacement of ADSP-BF526KBCZ-3?
All ADSP-BF526KBCZ-3 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-BF526KBCZ-3, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADSP-BF526KBCZ-3 part is unused and in its original packaging.
Return procedure for ADSP-BF526KBCZ-3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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