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Analog Devices Inc. ADSP-BF703BBCZ-3
- Part No.:
- ADSP-BF703BBCZ-3
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 184-LFBGA, CSPBGA
- Datasheet:
-
ADSP-BF703BBCZ-3.pdf
- Description:
- IC DSP LP 256KB L2SR 184BGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,419
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Product details
Overview
ADSP-BF703BBCZ-3 from Analog Devices is a Blackfin+ embedded processor IC delivering up to 400 MHz core performance with dual 16-bit or single 32-bit MAC per cycle, 136 kB parity-protected L1 SRAM (64 kB instruction + 64 kB data + 8 kB scratchpad), and AEC-Q100 qualification for automotive control systems requiring deterministic real-time signal processing.
For engineers reviewing the ADSP-BF703BBCZ-3 datasheet, ADSP-BF703BBCZ-3 pinout, ADSP-BF703BBCZ-3 application, or ADSP-BF703BBCZ-3 equivalent, key selection criteria include its 184-ball CSP_BGA package, 512 kB ECC-protected L2 SRAM, dual CAN 2.0B interfaces, USB 2.0 HS OTG, and hardware crypto acceleration for secure boot and runtime encryption.
Technical Context
The ADSP-BF703BBCZ-3 implements a modified Harvard architecture with separate 64 kB L1 instruction and 64 kB L1 data SRAM banks, both multi-parity-bit protected and configurable as cache or SRAM. Its Blackfin+ core integrates two 16-bit multipliers, one 32-bit multiplier, dual 40-bit ALUs, and a 72-bit ALU supporting complex MAC and SIMD operations.
It features a hierarchical memory system: L1 operates at full core speed; L2 provides unified 512 kB ECC-protected SRAM accessible via a dedicated 64-bit interface at SYSCLK frequency; and L3 supports 16-bit DDR2/LPDDR interfaces (CSP_BGA only). Peripheral integration includes two CAN controllers, two UARTs, two SPORTs, PPI, MSI (SD/SDIO), and crypto hardware accelerators.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Blackfin+ 32-bit RISC/DSP hybrid with instruction set compatibility to prior Blackfin processors |
| Max Core Frequency | 400 MHz - enables real-time audio/video analytics and motor control loop execution within strict timing budgets |
| L1 Memory | 136 kB total: 64 kB instruction SRAM, 64 kB data SRAM, 8 kB scratchpad - all with multi-parity-bit protection for fault-tolerant operation |
| L2 Memory | 512 kB ECC-protected SRAM - provides deterministic latency for safety-critical code and data storage |
| Package | 184-ball CSP_BGA (12 mm × 12 mm, 0.8 mm pitch) - RoHS-compliant, optimized for thermal dissipation in automotive ECUs |
| Automotive Qualification | AEC-Q100 Grade 3 (−40°C to +105°C) - validated for under-hood and body-control applications |
| Peripherals | Dual CAN 2.0B, USB 2.0 HS OTG, 2× UART, 2× SPORT, PPI, MSI (SD/SDIO), 8× GP timers, RTC, TWI, crypto engine |
Pinout & Package
ADSP-BF703BBCZ-3 is housed in an 184-ball CSP_BGA package (12 mm × 12 mm, 0.8 mm pitch), RoHS compliant, with ball assignments defined per Analog Devices' ADSP-BF70x 184-Ball CSP_BGA Ball Assignments (Rev. D, Page 105).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_INT | Core power supply | 1.05 V ± 3% - powers Blackfin+ core logic; requires low-noise regulation for stable 400 MHz operation |
| VDD_IO | I/O power supply | 3.3 V or 1.8 V selectable - supports mixed-voltage interfacing with peripherals and memory |
| CLKIN | External clock input | Accepts 1–50 MHz crystal or oscillator - feeds PLL for generating internal SYSCLK up to 400 MHz |
| RESET | Active-low reset input | Synchronous deassertion required; initiates boot sequence per SYS_BMODE pin configuration |
| BOOT_CFG[2:0] | Boot mode configuration | Three-pin strap determines master/slave boot source (SPI, UART, USB, parallel) - defines initial memory map and security policy |
| CAN0_TX / CAN0_RX | Controller Area Network channel 0 | Differential signaling pair compliant with ISO 11898-1; supports bit rates up to 1 Mbps for vehicle network communication |
| USB_DP / USB_DM | USB 2.0 High-Speed differential pair | Direct connection to USB PHY; enables host/device OTG operation without external transceiver |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Crypto Acceleration | Integrated crypto engine enabling AES-128/256, SHA-256, RSA, and elliptic curve operations - reduces secure boot time by >90% vs. software-only implementation |
| memDMA Encryption/Decryption | On-the-fly AES-CTR encryption of DMA transfers between L2 SRAM and external memory - protects firmware updates and sensor data in transit |
| Fault-Tolerant Memory Protection | L1 SRAM with multi-parity-bit detection/correction and L2 SRAM with ECC - meets ASIL-B requirements for memory integrity in automotive systems |
| Flexible Boot Options | Configurable via BOOT_CFG pins: SPI master/slave, UART, USB, or parallel interface boot - supports field firmware recovery and secure provisioning workflows |
| Dynamic Power Management | Multiple low-power states (IDLE, DEEP SLEEP, HIBERNATE) with sub-100 µA retention current - extends battery life in portable instrumentation and telematics units |
Applications
| Automotive ADAS Sensor Fusion | Industrial Motor Control |
|---|---|
Use Scenario: Real-time fusion of radar, camera, and ultrasonic inputs in forward collision warning systems. IC Role / Device Role / Timing Role: Primary signal processor executing Kalman filters, FFTs, and object classification algorithms with deterministic <50 µs interrupt latency. Use Value: Dual 16-bit MACs deliver 800 MMAC/s throughput; 512 kB L2 SRAM stores multiple sensor buffers and neural network weights without external DRAM. |
Use Scenario: Closed-loop field-oriented control (FOC) of three-phase PMSM motors in HVAC compressors and EV traction inverters. IC Role / Device Role / Timing Role: Real-time controller managing PWM generation, current sensing, and torque calculation at 20 kHz switching frequency. Use Value: Hardware-accelerated trigonometric and square-root functions reduce FOC loop execution time to <1.2 µs; dual CAN interfaces enable motor and inverter coordination. |
| Secure Telematics Gateway | Medical Imaging Edge Processor |
Use Scenario: In-vehicle gateway aggregating cellular, Wi-Fi, and CAN bus data while enforcing OTA update authentication and data encryption. IC Role / Device Role / Timing Role: Security-enforcement node performing TLS handshake acceleration, firmware signature verification, and encrypted log storage. Use Value: Crypto engine offloads AES-GCM and SHA-256 from main application thread; OTP memory stores root-of-trust keys for immutable identity binding. |
Use Scenario: Portable ultrasound device performing beamforming, B-mode image reconstruction, and DICOM compression at point-of-care. IC Role / Device Role / Timing Role: Embedded imaging co-processor handling real-time FIR filtering, envelope detection, and JPEG-LS encoding. Use Value: 400 MHz Blackfin+ core executes 128-channel digital beamformer in <100 ns/sample; 136 kB L1 SRAM enables zero-wait-state access to critical filter coefficients. |
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-BF706BBCZ-3 | 1 MB L2 SRAM (vs. 512 kB), adds DDR2/LPDDR interface (L3), same 184-ball CSP_BGA package | Required when external DRAM bandwidth >200 MB/s is needed for video buffering or large ML inference models | Select ADSP-BF706BBCZ-3 if system design mandates high-bandwidth external memory access beyond L2 capacity. |
| ADSP-BF702BBCZ-3 | 256 kB L2 SRAM (vs. 512 kB), no DDR2/LPDDR support, same 184-ball CSP_BGA package | Suitable for cost-sensitive motor control or audio processing where L2 footprint ≤256 kB suffices | Choose ADSP-BF702BBCZ-3 when application memory footprint fits within 256 kB L2 and DRAM interface is unnecessary. |
Compared with ADSP-BF703BBCZ-3, ADSP-BF706BBCZ-3 expands memory bandwidth and capacity for data-intensive workloads, while ADSP-BF702BBCZ-3 reduces cost and power for simpler deterministic control tasks - all share identical pinout, peripheral set, and software compatibility.
Availability
ADSP-BF703BBCZ-3 is available at Aetrix Electronics and suitable for automotive ECU development, industrial motor drives, and secure medical edge devices requiring stable component supply across extended product lifecycles.
Supply support for ADSP-BF703BBCZ-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 leader in high-performance analog, mixed-signal, and DSP technology, headquartered in Norwood, MA, serving automotive, industrial, communications, and healthcare markets.
The ADSP-BF70x family was designed specifically for deterministic, low-latency embedded signal processing in safety-critical automotive and industrial systems - combining MCU programmability with DSP computational density and hardware security.
FAQ
What is the maximum operating temperature range for the ADSP-BF703BBCZ-3?
The ADSP-BF703BBCZ-3 is AEC-Q100 qualified for Grade 3 operation, supporting continuous operation from −40°C to +105°C ambient temperature. This rating is validated across all electrical specifications and ensures reliable performance in under-hood automotive environments and industrial enclosures without forced cooling.
Does the ADSP-BF703BBCZ-3 support secure boot from external SPI flash?
Yes, the ADSP-BF703BBCZ-3 supports secure boot from external SPI flash via its master SPI boot mode. The hardware crypto engine verifies SHA-256 signatures of boot images stored in SPI flash using keys fused into OTP memory, preventing unauthorized firmware execution.
How much on-chip SRAM does the ADSP-BF703BBCZ-3 provide, and how is it partitioned?
The ADSP-BF703BBCZ-3 provides 136 kB of on-chip L1 SRAM: 64 kB instruction SRAM, 64 kB data SRAM, and 8 kB scratchpad SRAM - all protected by multi-parity-bit error detection. It also includes 512 kB of ECC-protected L2 SRAM for larger code and data segments.
Can the ADSP-BF703BBCZ-3 interface directly with DDR2 memory?
No, the ADSP-BF703BBCZ-3 does not integrate a DDR2/LPDDR controller. That feature is exclusive to the ADSP-BF706/707 variants. The ADSP-BF703BBCZ-3 supports only static memory (SRAM, NOR flash) via its Static Memory Controller and SD/SDIO via MSI - no L3 dynamic memory interface.
What debug interfaces are supported by the ADSP-BF703BBCZ-3?
The ADSP-BF703BBCZ-3 supports JTAG-based emulation via its dedicated TCK/TMS/TDI/TDO pins, enabling full-core debugging, real-time trace, and boundary-scan testing. It also supports SWD (Serial Wire Debug) through multiplexed GPIO pins when configured for debug mode.
ADSP-BF703BBCZ-3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- Blackfin®
- Package/Case:
- 184-LFBGA, CSPBGA
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- Blackfin+
- Interface:
- CAN, DSPI, EBI/EMI, I2C, PPI, QSPI, SD/SDIO, SPI, SPORT, UART/USART, USB OTG
- Clock Rate:
- 300MHz
- Non-Volatile Memory:
- ROM (512kB)
- On-Chip RAM:
- 256kB
- Voltage - I/O:
- 1.8V, 3.3V
- Voltage - Core:
- 1.10V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 184-CSPBGA (12x12)
ADSP-BF703BBCZ-3 FAQ
1.How can I place an order for ADSP-BF703BBCZ-3 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-BF703BBCZ-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-BF703BBCZ-3 reliable?
The price and inventory of ADSP-BF703BBCZ-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-BF703BBCZ-3 is usually 5 days.
3.What payment methods are accepted for ADSP-BF703BBCZ-3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-BF703BBCZ-3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-BF703BBCZ-3?
ADSP-BF703BBCZ-3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-BF703BBCZ-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-BF703BBCZ-3?
For technical support, including ADSP-BF703BBCZ-3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-BF703BBCZ-3 requirements.
6.How does Aetrix verify that ADSP-BF703BBCZ-3 is sourced from the original manufacturer or authorized distributors?
All ADSP-BF703BBCZ-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-BF703BBCZ-3 meets industry standards.
7.What is the process for return or replacement of ADSP-BF703BBCZ-3?
All ADSP-BF703BBCZ-3 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-BF703BBCZ-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-BF703BBCZ-3 part is unused and in its original packaging.
Return procedure for ADSP-BF703BBCZ-3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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