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Analog Devices Inc. ADSP-BF704KCPZ-3
- Part No.:
- ADSP-BF704KCPZ-3
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 88-VFQFN Exposed Pad, CSP
- Datasheet:
-
ADSP-BF704KCPZ-3.pdf
- Description:
- IC DSP LP 512KB L2SR 88LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,306
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Product details
Overview
ADSP-BF704KCPZ-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. It integrates crypto accelerators, USB 2.0 HS OTG, dual CAN 2.0B controllers, and 256 kB ECC-protected L2 SRAM.
For engineers reviewing the ADSP-BF704KCPZ-3 datasheet, ADSP-BF704KCPZ-3 pinout, ADSP-BF704KCPZ-3 application, or ADSP-BF704KCPZ-3 equivalent, key selection considerations include its 88-lead LFCSP_VQ package, 43 GPIOs, 2× UART, 2× SPORT, and support for secure boot with memDMA encryption-critical for real-time audio processing, motor control firmware, and automotive infotainment subsystems.
Technical Context
The ADSP-BF704KCPZ-3 implements a modified Harvard architecture with separate 64 kB L1 instruction and 64 kB L1 data SRAM banks, both multi-parity-bit protected, plus an 8 kB scratchpad SRAM. Its Blackfin+ core features two 16-bit multipliers, one 32-bit multiplier, dual 40-bit ALUs, and 40-bit shifter supporting complex MAC, saturation, rounding, and video-specific operations.
Peripherals include a 16-bit dynamic memory controller (DDR2/LPDDR capable only in CSP_BGA variants-excluded here), static memory controller, 2× CAN, 2× UART, 2× SPORT, 1× PPI, 1× USB 2.0 HS OTG, and hardware crypto engine with OTP memory for secure boot. The 88-lead LFCSP_VQ package omits L3 interface and DDR2/LPDDR support present in the 184-ball variant.
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 execution of 16-/32-bit signal processing algorithms at ≤2.5 ns/cycle |
| 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 error-correcting code for safety-critical data storage and DMA buffers |
| Package | 88-lead LFCSP_VQ (12 mm × 12 mm, RoHS compliant) - surface-mount, thermally enhanced, no BGA rework requirement |
| Automotive Qualification | AEC-Q100 Grade 3 (−40°C to +105°C) - validated for under-hood and cabin electronics without derating |
| Security Features | Crypto hardware accelerators + 1 kB OTP memory + fast secure boot - enables IP protection and authenticated firmware loading |
Pinout & Package
ADSP-BF704KCPZ-3 uses an 88-lead LFCSP_VQ (QFN) package, 12 mm × 12 mm, RoHS compliant, with exposed thermal pad. Pin assignments follow Analog Devices' ADSP-BF70x 88-Lead LFCSP signal description (Rev. D, Pages 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 and peripheral power | 3.3 V ±5% supply for GPIO, UART, SPI, CAN transceivers; supports mixed-voltage interfacing |
| 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 cold boot sequence from configured boot mode pins |
| BOOT_CFG[2:0] | Boot mode configuration | Three-pin strap determines boot source (SPI flash, parallel NOR, USB, or host slave); latched at reset |
| USB_DP / USB_DM | USB 2.0 HS differential pair | Integrated PHY supports high-speed (480 Mbps) OTG operation without external transceiver |
| CAN0_TX / CAN0_RX | Controller Area Network channel 0 | Dedicated differential signaling pins compliant with ISO 11898-1; require external CAN transceiver |
Key Features
| Feature | Design Value |
|---|---|
| Dual 16-bit MAC per cycle | Enables simultaneous FIR filtering and FFT butterfly operations in audio preprocessing pipelines |
| 136 kB L1 SRAM with parity protection | Eliminates need for external SRAM in latency-sensitive control loops; parity detection prevents silent data corruption |
| Hardware crypto acceleration | Offloads AES-128/256, SHA-256, and RSA operations from CPU, preserving 400 MHz headroom for application code |
| 2× CAN 2.0B controllers | Supports concurrent vehicle network communication on powertrain and body domains without software arbitration |
| Secure boot with OTP memory | Ensures only cryptographically signed firmware executes; 1 kB OTP stores root keys and chip ID for anti-cloning |
Applications
| Automotive ADAS Sensor Fusion | Industrial Motor Control |
|---|---|
Use Scenario: Real-time fusion of radar, camera, and ultrasonic sensor data in compact ECU modules. IC Role / Device Role / Timing Role: Primary compute engine executing Kalman filters, object tracking, and CAN message aggregation at ≤100 µs latency. Use Value: 400 MHz Blackfin+ core + dual MAC + 256 kB L2 SRAM enables deterministic execution of multi-sensor algorithms without external DRAM. |
Use Scenario: Closed-loop field-oriented control (FOC) of BLDC motors in HVAC compressors and industrial drives. IC Role / Device Role / Timing Role: Real-time PWM generation, current sensing ADC processing, and torque/flux loop computation at 20 kHz update rate. Use Value: 136 kB parity-protected L1 SRAM ensures glitch-free interrupt response; 2× SPORT interfaces directly to isolated gate drivers. |
| Audio DSP for Automotive Infotainment | Secure Biometric Edge Node |
Use Scenario: On-device echo cancellation, noise suppression, and multi-zone audio rendering in head units. IC Role / Device Role / Timing Role: Dedicated DSP subsystem handling 8-channel I²S input/output with sub-50 µs pipeline latency. Use Value: Dual 16-bit MAC + 2× SPORT + 2× UART allows concurrent audio stream routing, Bluetooth HCI, and diagnostics over CAN. |
Use Scenario: Tamper-resistant fingerprint matching and template storage in access control terminals. IC Role / Device Role / Timing Role: Secure enclave executing cryptographic verification, feature extraction, and encrypted flash updates. Use Value: Hardware crypto engine + 1 kB OTP + memDMA encryption prevents side-channel leakage and firmware rollback attacks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar embedded processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADSP-BF706KCPZ-3 | 1 MB L2 SRAM (vs. 256 kB), adds L3 DDR2/LPDDR interface, 184-ball CSP_BGA only | Required for systems needing >512 kB off-core memory bandwidth (e.g., video analytics) | Select ADSP-BF706KCPZ-3 only if DDR2/LPDDR interface and ≥1 MB L2 SRAM are mandatory; not pin-compatible with ADSP-BF704KCPZ-3 |
| ADSP-BF702KCPZ-3 | 200 MHz max frequency, 128 kB L2 SRAM, same 88-lead LFCSP package and peripheral set | Suitable for cost-optimized motor control or audio codecs where 400 MHz headroom is unnecessary | ADSP-BF702KCPZ-3 offers identical footprint and software compatibility at lower power and cost; ideal for volume production with relaxed timing margins |
Compared with ADSP-BF704KCPZ-3, ADSP-BF706KCPZ-3 expands memory bandwidth via DDR2/LPDDR but sacrifices LFCSP packaging flexibility, while ADSP-BF702KCPZ-3 retains full pin and software compatibility at reduced speed and L2 capacity-making it the only drop-in alternative for footprint-constrained designs.
Availability
ADSP-BF704KCPZ-3 is available at Aetrix Electronics and suitable for automotive ADAS ECUs, industrial motor drives, and secure biometric edge nodes requiring stable component supply across extended product lifecycles.
Supply support for ADSP-BF704KCPZ-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 automotive systems.
The ADSP-BF70x family was designed to deliver deterministic real-time signal processing in resource-constrained embedded environments-balancing 400 MHz compute, low-power operation (<100 mW at 400 MHz), and automotive-grade reliability without external memory dependencies.
FAQ
What is the maximum operating temperature range for the ADSP-BF704KCPZ-3?
The ADSP-BF704KCPZ-3 is AEC-Q100 qualified for Grade 3 operation, supporting continuous operation from −40°C to +105°C ambient temperature. This rating applies to the full 400 MHz performance envelope and includes validation of L1 SRAM parity protection, crypto accelerator functionality, and CAN/USB peripherals across the range.
Does the ADSP-BF704KCPZ-3 support DDR2 or LPDDR memory interfaces?
No, the ADSP-BF704KCPZ-3 does not support DDR2 or LPDDR memory. That capability is exclusive to the 184-ball CSP_BGA variants (e.g., ADSP-BF706KCPZ-3). The ADSP-BF704KCPZ-3 uses an 88-lead LFCSP_VQ package and relies solely on its on-chip 256 kB L2 SRAM and static memory controller for external NOR/PSRAM interfacing.
How many GPIO pins does the ADSP-BF704KCPZ-3 provide, and what multiplexing options are available?
The ADSP-BF704KCPZ-3 provides 43 GPIO pins, each configurable as general-purpose I/O or multiplexed to one of four peripheral functions-including UART, SPI, SPORT, CAN, TWI, or timer signals. Pin multiplexing is controlled via dedicated MMRs, and all GPIOs support programmable edge/level sensitivity and individual interrupt masking.
Is the ADSP-BF704KCPZ-3 pin-compatible with other ADSP-BF70x family members in the same package?
Yes, the ADSP-BF704KCPZ-3 shares identical 88-lead LFCSP_VQ pinout and electrical characteristics with ADSP-BF700KCPZ-3, ADSP-BF702KCPZ-3, and ADSP-BF703KCPZ-3. All share the same GPIO count, peripheral signal mapping, power domains, and boot configuration pin layout-enabling hardware reuse across speed grades and L2 SRAM variants.
What security mechanisms are implemented in the ADSP-BF704KCPZ-3 for firmware protection?
The ADSP-BF704KCPZ-3 implements three-tiered firmware security: (1) 1 kB one-time-programmable (OTP) memory storing immutable root keys, (2) hardware crypto accelerators for AES-128/256, SHA-256, and RSA, and (3) memDMA encryption/decryption enabling runtime protection of code and data in L2 SRAM. Secure boot validates digital signatures before executing any firmware image.
ADSP-BF704KCPZ-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:
- 512kB
- Voltage - I/O:
- 1.8V, 3.3V
- Voltage - Core:
- 1.10V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 88-LFCSP-VQ (12x12)
ADSP-BF704KCPZ-3 FAQ
1.How can I place an order for ADSP-BF704KCPZ-3 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-BF704KCPZ-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-BF704KCPZ-3 reliable?
The price and inventory of ADSP-BF704KCPZ-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-BF704KCPZ-3 is usually 5 days.
3.What payment methods are accepted for ADSP-BF704KCPZ-3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-BF704KCPZ-3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-BF704KCPZ-3?
ADSP-BF704KCPZ-3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-BF704KCPZ-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-BF704KCPZ-3?
For technical support, including ADSP-BF704KCPZ-3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-BF704KCPZ-3 requirements.
6.How does Aetrix verify that ADSP-BF704KCPZ-3 is sourced from the original manufacturer or authorized distributors?
All ADSP-BF704KCPZ-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-BF704KCPZ-3 meets industry standards.
7.What is the process for return or replacement of ADSP-BF704KCPZ-3?
All ADSP-BF704KCPZ-3 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-BF704KCPZ-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-BF704KCPZ-3 part is unused and in its original packaging.
Return procedure for ADSP-BF704KCPZ-3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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