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Analog Devices Inc. ADSP-BF704BCPZ-4
- Part No.:
- ADSP-BF704BCPZ-4
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 88-VFQFN Exposed Pad, CSP
- Datasheet:
-
ADSP-BF704BCPZ-4.pdf
- Description:
- IC DSP LP 512KB L2SR 88LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:4,020
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Product details
Overview
ADSP-BF704BCPZ-4 from Analog Devices is a Blackfin+ embedded processor IC delivering 400 MHz peak 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. It integrates crypto accelerators, USB 2.0 HS OTG, two CAN 2.0B controllers, and 256 kB ECC-protected L2 SRAM.
For engineers reviewing the ADSP-BF704BCPZ-4 datasheet, ADSP-BF704BCPZ-4 pinout, ADSP-BF704BCPZ-4 application, or ADSP-BF704BCPZ-4 equivalent, key selection criteria include deterministic real-time signal processing capability, on-chip security for secure boot and memDMA encryption, automotive-grade reliability, and support for LPDDR/DDR2 via L3 interface in CSP_BGA variants.
Technical Context
The ADSP-BF704BCPZ-4 implements a modified Harvard architecture with separate 64 kB L1 instruction and 64 kB L1 data SRAM blocks-both multi-parity-bit protected-and an 8 kB dedicated scratchpad. Its Blackfin+ core executes two 16×16 MACs or one 32×32 MAC per cycle, with hardware branch prediction and zero-overhead looping.
Peripherals include two CAN 2.0B controllers, two UARTs, two SPORTs, one PPI, one USB 2.0 HS OTG PHY, 2× Quad SPI, 1× Dual SPI, and a static memory controller supporting NOR/NAND/PSRAM. The device supports secure boot via OTP memory and runtime encryption via memDMA with integrated crypto engines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Blackfin+ 32-bit RISC/DSP hybrid with SIMD, instruction-set compatible with prior Blackfin processors |
| Max Operating Frequency | 400 MHz - enables real-time audio/video analytics and motor control loop execution at ≤2.5 µs latency |
| L1 Memory | 136 kB total: 64 kB instruction SRAM + 64 kB data SRAM + 8 kB scratchpad, all with multi-parity-bit protection |
| L2 Memory | 256 kB ECC-protected SRAM - provides fault-tolerant working memory for safety-critical firmware |
| Peripheral Integration | 2× CAN 2.0B, 2× UART, 2× SPORT, 1× USB 2.0 HS OTG, 1× PPI, 2× Quad SPI, 1× Dual SPI, RTC, 8× GP timers |
| Security Features | Crypto hardware accelerators (AES/SHA/RSA), OTP memory (1 kB), fast secure boot, memDMA encryption/decryption |
| Automotive Qualification | AEC-Q100 Grade 2 (−40°C to +105°C) - validated for engine control, ADAS sensor fusion, and body electronics |
Pinout & Package
ADSP-BF704BCPZ-4 is packaged in an 88-lead LFCSP_VQ (QFN) measuring 12 mm × 12 mm, RoHS compliant, with exposed thermal pad. Pin assignments are defined per Analog Devices' "12 mm × 12 mm 88-Lead LFCSP (QFN) Lead Assignments" documentation (Rev. D, Pages 108–110).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_INT | Core power supply | 1.05 V ±3% supply for Blackfin+ core; requires low-noise regulation due to high-frequency switching |
| VDD_EXT | I/O and peripheral power supply | 3.3 V ±5% supply for GPIO, UART, SPI, CAN transceivers; decoupling critical for EMI suppression |
| CLKIN | External clock input | Accepts 1–50 MHz crystal or CMOS clock; feeds PLL for SYSCLK generation up to 400 MHz |
| RESET | Active-low reset input | Synchronous deassertion required; initiates full internal state reset and boot sequence from configured mode |
| BOOT[1:0] | Boot mode configuration | Two-pin strap defining master/slave boot source (SPI flash, USB, external host); sampled at power-on reset |
| USB_DP / USB_DM | USB 2.0 HS differential pair | Integrated PHY supports host/device/OTG operation; requires 90 Ω differential impedance routing |
Key Features
| Feature | Design Value |
|---|---|
| Dual 16-bit MAC per cycle | Enables simultaneous FIR filtering and FFT bin computation in audio preprocessing without cycle stalls |
| 256 kB ECC-protected L2 SRAM | Eliminates need for external RAM in cost-sensitive automotive ECUs; ECC detects/corrects single-bit errors in real time |
| AEC-Q100 Grade 2 qualification | Validated for under-hood deployment with guaranteed operation from −40°C to +105°C junction temperature |
| Integrated crypto accelerators | Offloads AES-128/256, SHA-256, and RSA operations from CPU, reducing secure boot time by >70% vs. software-only |
| Flexible GPIO multiplexing | Each pin supports up to 4 peripheral functions (e.g., UART0_TX, SPORT0_CLK, TIMER0, GPIO) - simplifies PCB layout reuse |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Motor Drive Controller |
|---|---|
Use Scenario: Real-time combustion timing, fuel injection pulse width, and knock detection in gasoline/diesel engines. IC Role / Device Role / Timing Role: Primary compute engine executing PID loops, sensor fusion (crank/cam/HALL), and CAN-based diagnostics at 10 kHz control rate. Use Value: Deterministic 400 MHz Blackfin+ core ensures sub-5 µs worst-case interrupt latency for misfire detection; AEC-Q100 compliance guarantees field reliability. |
Use Scenario: Closed-loop vector control of 3-phase AC induction or BLDC motors in HVAC compressors and pumps. IC Role / Device Role / Timing Role: Executes FOC algorithm, PWM generation (via SPORT/PWM peripherals), and current sensing ADC interfacing with <1 µs jitter. Use Value: Dual 16-bit MACs process Clarke/Park transforms and PI regulators concurrently; 256 kB L2 SRAM stores motor profile tables without external memory. |
| Biometric Access Terminal | Video Analytics Edge Node |
Use Scenario: Fingerprint image capture, feature extraction, template matching, and encrypted storage in physical access systems. IC Role / Device Role / Timing Role: Host processor managing optical sensor interface (PPI), secure template storage (OTP + L2 SRAM), and encrypted communication (CAN/USB). Use Value: On-chip crypto accelerators enable AES-256 encryption of biometric templates in <10 ms; memDMA secures data movement between SRAM and peripherals. |
Use Scenario: Real-time motion detection, object classification, and metadata tagging in IP cameras and smart doorbells. IC Role / Device Role / Timing Role: Runs lightweight CNN inference (int8 quantized) and H.264 encode prep using L1 SRAM-resident buffers and SPORT-linked video front-end. Use Value: 136 kB parity-protected L1 SRAM sustains frame buffering and coefficient storage; USB 2.0 HS OTG enables direct firmware updates and debug streaming. |
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-BF706BCPZ-4 | 1 MB L2 SRAM (vs. 256 kB), adds DDR2/LPDDR L3 interface, same 88-lead LFCSP package | Required for applications needing >512 kB off-core working memory (e.g., multi-stream video buffering) | Select ADSP-BF706BCPZ-4 only if L2 memory expansion or external DRAM interface is mandatory; otherwise ADSP-BF704BCPZ-4 offers optimal BOM cost. |
| ADSP-BF702BCPZ-4 | 128 kB L2 SRAM (vs. 256 kB), no DDR2/LPDDR support, identical core/peripheral set and package | Suitable for cost-constrained motor control or sensor hub designs with <192 kB total working memory requirement | ADSP-BF702BCPZ-4 reduces memory cost by ~18% while retaining full pin and code compatibility; verify L2 usage margin in final firmware build. |
Compared with ADSP-BF704BCPZ-4, ADSP-BF706BCPZ-4 adds external DRAM bandwidth at higher power and cost, while ADSP-BF702BCPZ-4 trades L2 capacity for lower unit price-both maintain identical I/O, timing, and software compatibility across the BF70x family.
Availability
ADSP-BF704BCPZ-4 is available at Aetrix Electronics and suitable for automotive engine control units, industrial motor drives, biometric terminals, and edge video analytics requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for ADSP-BF704BCPZ-4 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 automotive systems.
The ADSP-BF70x product line was designed for deterministic real-time embedded applications demanding combined DSP and MCU capabilities-particularly in automotive powertrain, ADAS sensor processing, and industrial motion control.
FAQ
What is the maximum operating frequency of the ADSP-BF704BCPZ-4?
The ADSP-BF704BCPZ-4 operates at a maximum frequency of 400 MHz. This speed grade is achieved under specified thermal conditions (TJ ≤ 105°C) and power supply tolerances (VDD_INT = 1.05 V ±3%). The core delivers deterministic real-time performance for audio, motor control, and sensor fusion workloads without dynamic frequency scaling.
Does the ADSP-BF704BCPZ-4 support external DDR memory?
No, the ADSP-BF704BCPZ-4 does not support external DDR or LPDDR memory. That capability is reserved for the ADSP-BF706/707 variants with CSP_BGA packaging and L3 interface. The ADSP-BF704BCPZ-4 relies solely on its on-chip 256 kB ECC-protected L2 SRAM and 136 kB L1 memory hierarchy for data and program storage.
Is the ADSP-BF704BCPZ-4 pin-compatible with other BF70x processors?
Yes, the ADSP-BF704BCPZ-4 shares identical 88-lead LFCSP_VQ pinout and footprint with ADSP-BF700/701/702/703/705 in the same package variant. All BF70x LFCSP devices use the same mechanical outline, thermal pad, and signal assignment-enabling hardware reuse across speed and memory grades.
What security features are implemented in the ADSP-BF704BCPZ-4?
The ADSP-BF704BCPZ-4 includes hardware crypto accelerators for AES-128/256, SHA-256, and RSA; 1 kB OTP memory for unique chip ID and secure boot keys; memDMA encryption/decryption; and fast secure boot ROM. These features collectively protect firmware integrity, enable encrypted firmware updates, and prevent unauthorized code execution.
Which development tools support the ADSP-BF704BCPZ-4?
Analog Devices' CrossCore Embedded Studio (CCES) fully supports the ADSP-BF704BCPZ-4, including C/C++ compilation, JTAG debugging, and real-time tracing. The EZ-KIT Lite evaluation board (ADZS-BF706-EZLITE) is compatible via software configuration, and ICE-1000/2000 emulators provide full boundary-scan and run-control capability for the ADSP-BF704BCPZ-4.
ADSP-BF704BCPZ-4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- Blackfin®
- Package/Case:
- 88-VFQFN Exposed Pad, CSP
- 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:
- 400MHz
- Non-Volatile Memory:
- ROM (512kB)
- On-Chip RAM:
- 512kB
- 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:
- 88-LFCSP-VQ (12x12)
ADSP-BF704BCPZ-4 FAQ
1.How can I place an order for ADSP-BF704BCPZ-4 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-BF704BCPZ-4 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-BF704BCPZ-4 reliable?
The price and inventory of ADSP-BF704BCPZ-4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-BF704BCPZ-4 is usually 5 days.
3.What payment methods are accepted for ADSP-BF704BCPZ-4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-BF704BCPZ-4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-BF704BCPZ-4?
ADSP-BF704BCPZ-4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-BF704BCPZ-4 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-BF704BCPZ-4?
For technical support, including ADSP-BF704BCPZ-4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-BF704BCPZ-4 requirements.
6.How does Aetrix verify that ADSP-BF704BCPZ-4 is sourced from the original manufacturer or authorized distributors?
All ADSP-BF704BCPZ-4 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-BF704BCPZ-4 meets industry standards.
7.What is the process for return or replacement of ADSP-BF704BCPZ-4?
All ADSP-BF704BCPZ-4 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-BF704BCPZ-4, 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-BF704BCPZ-4 part is unused and in its original packaging.
Return procedure for ADSP-BF704BCPZ-4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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