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Analog Devices Inc. ADSP-BF702BCPZ-3
- Part No.:
- ADSP-BF702BCPZ-3
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 88-VFQFN Exposed Pad, CSP
- Datasheet:
-
ADSP-BF702BCPZ-3.pdf
- Description:
- IC DSP LP 256KB L2SR 88LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,088
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Product details
Overview
ADSP-BF702BCPZ-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.
For engineers reviewing the ADSP-BF702BCPZ-3 datasheet, ADSP-BF702BCPZ-3 pinout, ADSP-BF702BCPZ-3 application, or ADSP-BF702BCPZ-3 equivalent, key selection criteria include its 88-lead LFCSP_VQ package, 2× CAN 2.0B interfaces, 512 kB ECC-protected L2 SRAM, USB 2.0 HS OTG support, and integrated crypto accelerators for secure boot and runtime encryption.
Technical Context
The ADSP-BF702BCPZ-3 implements a modified Harvard architecture with separate 64 kB L1 instruction and 64 kB L1 data SRAM banks, both operating at full core speed with multi-parity-bit protection. 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 SRAM/cache, unified ECC-protected 512 kB L2 SRAM, 512 kB L2 ROM, and a 16-bit dynamic memory controller supporting DDR2/LPDDR (CSP_BGA only - not applicable to this QFN variant). Peripherals include 2× UART, 2× SPORT, 1× PPI, 2× CAN, 1× USB 2.0 HS OTG, and hardware crypto engines for AES/SHA acceleration.
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 processing 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 error detection |
| L2 Memory | 512 kB ECC-protected SRAM - provides reliable, high-bandwidth working memory for firmware and buffers |
| Package | 88-lead LFCSP_VQ (12 mm × 12 mm, RoHS compliant) - surface-mountable, thermally enhanced QFN for compact automotive ECUs |
| Automotive Qualification | AEC-Q100 Grade 3 (−40°C to +85°C) - validated for under-hood and cabin control applications |
| Peripherals | 2× CAN 2.0B controllers, 2× UART, 2× SPORT, 1× USB 2.0 HS OTG, 1× PPI, 8× GP timers, crypto accelerators - supports multi-protocol vehicle networking and secure firmware updates |
Pinout & Package
ADSP-BF702BCPZ-3 uses an 88-lead LFCSP_VQ (QFN) package measuring 12 mm × 12 mm with exposed thermal pad. Pin assignments are defined in Analog Devices' ADSP-BF70x documentation (Rev. D, pp. 30–35).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_INT | Core power supply | 1.05 V ±3% supply for 400 MHz operation; requires low-noise regulation and local decoupling |
| VDD_EXT | I/O power supply | 3.3 V ±5% supply for GPIO, UART, SPI, and peripheral interfaces; supports mixed-voltage system interfacing |
| CLKIN | External clock input | Accepts 1–50 MHz crystal or CMOS clock; feeds internal PLL for SYSCLK generation up to 400 MHz |
| RESET | Active-low reset input | Synchronous deassertion required; initiates cold boot sequence from configured boot source (SPI/USB/UART) |
| BOOT_CFG[2:0] | Boot mode configuration | Three-pin strap determines master/slave boot mode and interface (e.g., SPI flash, USB host, UART loader) |
| CAN0_TX / CAN0_RX | CAN 2.0B differential transceiver interface | Direct connection to external CAN transceiver (e.g., ADM3053); supports 1 Mbps automotive bus communication |
| USB_DP / USB_DM | USB 2.0 HS differential pair | Full-speed and high-speed (480 Mbps) OTG-capable interface; requires 90 Ω differential impedance routing |
Key Features
| Feature | Design Value |
|---|---|
| Dual 16-bit or single 32-bit MAC/cycle | Enables simultaneous real-time filtering (e.g., FIR/IIR) and control law computation without pipeline stalls |
| Hardware crypto accelerators | Offloads AES-128/256, SHA-1/256, and RSA operations - reduces secure boot time by >70% vs. software-only implementation |
| memDMA encryption/decryption | Transparent runtime encryption of DMA-transferred data buffers - protects firmware-in-transit and sensor data streams |
| Fast secure boot with OTP key storage | Verifies signed boot image using keys stored in 1 kB one-time-programmable memory - prevents unauthorized firmware execution |
| 88-lead LFCSP_VQ package | Thermally efficient QFN with exposed pad; supports reflow assembly and meets IPC-7351B footprint standards for automotive PCBs |
Applications
| Automotive Body Control Module | Industrial Motor Drive Controller |
|---|---|
|
Use Scenario: Centralized ECU managing door locks, lighting, HVAC, and window lift functions in modern vehicles. IC Role / Device Role / Timing Role: Primary application processor executing real-time CAN message arbitration, PWM generation for LED drivers, and secure OTA update handling. Use Value: AEC-Q100 qualification ensures reliability across temperature extremes; dual CAN interfaces enable redundant bus communication for safety-critical subsystems. |
Use Scenario: Closed-loop servo drive for BLDC/PMSM motors in factory automation equipment. IC Role / Device Role / Timing Role: Real-time motion controller performing field-oriented control (FOC), current sensing ADC processing, and PWM waveform synthesis at 20 kHz switching frequency. Use Value: 400 MHz Blackfin+ core executes FOC algorithms in <1.5 µs; 136 kB L1 SRAM hosts fast-access control tables and interrupt service routines. |
| Secure Audio Processing Gateway | Biometric Access Terminal |
|
Use Scenario: In-vehicle infotainment gateway aggregating audio streams from multiple sources (Bluetooth, USB, SD card) with DRM enforcement. IC Role / Device Role / Timing Role: Audio signal processor handling sample-rate conversion, multi-channel mixing, and AES-encrypted stream decryption before DAC output. Use Value: Integrated crypto engine decrypts audio payloads in hardware; USB 2.0 HS OTG enables high-bandwidth content loading without CPU overhead. |
Use Scenario: Embedded fingerprint/face recognition terminal for physical access control in enterprise or industrial facilities. IC Role / Device Role / Timing Role: Secure biometric co-processor performing template matching, liveness detection, and encrypted match result reporting via CAN or UART. Use Value: OTP memory stores device-unique keys; memDMA encryption secures biometric templates during RAM-to-SRAM transfers - meeting ISO/IEC 30107 liveness assurance requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar embedded processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADSP-BF706BCPZ-3 | 1 MB L2 SRAM (vs. 512 kB), adds DDR2/LPDDR interface (CSP_BGA only), same 88-lead LFCSP option unavailable | Targeted at higher-memory applications like video analytics; incompatible pinout and package | Select only if ≥1 MB on-chip SRAM and external DRAM support are required - not a drop-in replacement |
| ADSP-BF702BCPZ-4 | Same silicon, rated for 400 MHz at −40°C to +105°C (Grade 2) vs. −40°C to +85°C (Grade 3) | Required for extended-temperature under-hood deployment (e.g., engine control modules) | Choose ADSP-BF702BCPZ-4 when ambient operating temperature exceeds +85°C - identical functionality and pinout |
Compared with ADSP-BF702BCPZ-3, ADSP-BF706BCPZ-3 offers greater memory capacity but requires CSP_BGA packaging and board redesign, while ADSP-BF702BCPZ-4 provides extended thermal range with zero hardware or software changes - making it the only true functional and mechanical alternative.
Availability
ADSP-BF702BCPZ-3 is available at Aetrix Electronics and suitable for automotive body control, industrial motor drives, secure audio gateways, and biometric access terminals requiring stable component supply and long-term production continuity.
Supply support for ADSP-BF702BCPZ-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, power, and connectivity applications.
The ADSP-BF70x product line delivers cost-optimized, AEC-Q100 qualified Blackfin+ processors targeting real-time embedded control in automotive, industrial, and IoT edge devices - emphasizing deterministic latency, security, and low-power operation.
FAQ
What is the maximum operating frequency of the ADSP-BF702BCPZ-3?
The ADSP-BF702BCPZ-3 is rated for a maximum core frequency of 400 MHz under specified thermal and voltage conditions (VDD_INT = 1.05 V, TJ ≤ 85°C). This performance level is guaranteed across the full AEC-Q100 Grade 3 temperature range (−40°C to +85°C) and enables deterministic execution of real-time DSP and control algorithms without throttling.
Does the ADSP-BF702BCPZ-3 support external DDR memory?
No, the ADSP-BF702BCPZ-3 does not support external DDR memory. Its 88-lead LFCSP_VQ package lacks the necessary ball count and signal routing for DDR2/LPDDR interfaces. That capability is exclusive to the 184-ball CSP_BGA variants (e.g., ADSP-BF702BBCZ-3). The ADSP-BF702BCPZ-3 relies solely on its on-chip 512 kB ECC-protected L2 SRAM and 136 kB L1 SRAM for data and program storage.
What boot sources are supported by the ADSP-BF702BCPZ-3?
The ADSP-BF702BCPZ-3 supports multiple boot sources determined by the BOOT_CFG[2:0] strap pins: SPI flash (master mode), USB host (slave mode), UART (slave mode), and parallel memory (slave mode). It performs fast secure boot by verifying signed images against keys stored in its 1 kB OTP memory, ensuring only authenticated firmware executes after reset.
Is the ADSP-BF702BCPZ-3 pin-compatible with other ADSP-BF70x variants in the same package?
Yes, the ADSP-BF702BCPZ-3 shares identical pinout and electrical characteristics with other 88-lead LFCSP_VQ variants in the BF70x family (e.g., ADSP-BF700BCPZ-3, ADSP-BF701BCPZ-3). Differences are limited to internal memory configuration (L2 SRAM size) and peripheral enablement - all controlled via software configuration, not pin strapping or hardware differences.
What security features are implemented in hardware on the ADSP-BF702BCPZ-3?
The ADSP-BF702BCPZ-3 integrates dedicated hardware security blocks: crypto accelerators for AES-128/256, SHA-1/256, and RSA; memDMA encryption/decryption engines; 1 kB one-time-programmable (OTP) memory for key storage; and fast secure boot logic. These features operate independently of the main CPU core, enabling secure firmware validation and runtime data protection without software overhead.
ADSP-BF702BCPZ-3 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:
- 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:
- 88-LFCSP-VQ (12x12)
ADSP-BF702BCPZ-3 FAQ
1.How can I place an order for ADSP-BF702BCPZ-3 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-BF702BCPZ-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-BF702BCPZ-3 reliable?
The price and inventory of ADSP-BF702BCPZ-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-BF702BCPZ-3 is usually 5 days.
3.What payment methods are accepted for ADSP-BF702BCPZ-3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-BF702BCPZ-3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-BF702BCPZ-3?
ADSP-BF702BCPZ-3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-BF702BCPZ-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-BF702BCPZ-3?
For technical support, including ADSP-BF702BCPZ-3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-BF702BCPZ-3 requirements.
6.How does Aetrix verify that ADSP-BF702BCPZ-3 is sourced from the original manufacturer or authorized distributors?
All ADSP-BF702BCPZ-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-BF702BCPZ-3 meets industry standards.
7.What is the process for return or replacement of ADSP-BF702BCPZ-3?
All ADSP-BF702BCPZ-3 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-BF702BCPZ-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-BF702BCPZ-3 part is unused and in its original packaging.
Return procedure for ADSP-BF702BCPZ-3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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