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Analog Devices Inc. ADSP-BF535PKB-350
- Part No.:
- ADSP-BF535PKB-350
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 260-BBGA
- Datasheet:
-
ADSP-BF535PKB-350.pdf
- Description:
- IC DSP CONTROLLER 16BIT 260 BGA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ADSP-BF535PKB-350 from Analog Devices is a 350 MHz Blackfin embedded processor featuring dual 16-bit MACs, 256 KB on-chip L2 SRAM, PCI 2.2-compliant bus interface, USB 1.1 device port, and real-time clock - deployed in portable digital communication appliances requiring integrated signal processing and system control.
For engineers reviewing the ADSP-BF535PKB-350 datasheet, ADSP-BF535PKB-350 pinout, ADSP-BF535PKB-350 application, or ADSP-BF535PKB-350 equivalent, key selection criteria include core clock speed, on-chip memory hierarchy (L1/L2 SRAM configuration), PCI/USB peripheral support, dynamic power management modes, and 260-ball PBGA package compatibility with high-density routing constraints.
Technical Context
The ADSP-BF535PKB-350 implements a modified Harvard architecture with hierarchical memory: 16 KB L1 instruction SRAM/cache, two 16 KB L1 data SRAM/cache banks, 4 KB scratch pad SRAM, and 256 KB unified L2 SRAM - all accessible at full 350 MHz core speed. Its dual-MAC, quad-video-ALU signal processing engine executes 16-/32-bit instructions with zero-overhead looping and SIMD multimedia acceleration.
Peripherals are tightly coupled via high-bandwidth internal buses: a 32-bit, 33 MHz PCI 2.2 interface supports both host and target roles; USB 1.1 operates in device-only mode; two full-duplex SPORTs and two SPI ports enable audio/modem codec interfacing; and four timers (three with PWM) plus programmable flag I/O provide real-time control. All peripherals except RTC, watchdog, and flags support dedicated DMA channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Frequency | 350 MHz - enables real-time execution of complex DSP algorithms (e.g., multi-channel audio codecs) within strict latency budgets. |
| L1 Memory | 16 KB instruction + 32 KB data SRAM/cache - provides deterministic low-latency access for critical code and data without external memory wait states. |
| L2 Memory | 256 KB unified SRAM - serves as high-bandwidth working memory for large buffers, FFT tables, or firmware images, eliminating SDRAM access bottlenecks. |
| PCI Interface | 32-bit, 33 MHz, PCI 2.2 compliant - allows glueless expansion with standard peripherals (e.g., Ethernet controllers, FPGA co-processors) in host or target configurations. |
| USB Interface | USB 1.1 device-only - supports direct connection to PCs for firmware updates, data logging, or host-controlled operation without external transceivers. |
| Power Management | 1.0–1.6 V core VDD with four operating modes (Full On, Active, Sleep, Deep Sleep) - enables battery life optimization in portable applications via voltage/frequency scaling. |
| Package | 260-ball PBGA (17 mm × 17 mm, 1.0 mm pitch) - supports high I/O count in compact footprint while maintaining thermal performance for sustained 350 MHz operation. |
Pinout & Package
ADSP-BF535PKB-350 is housed in a 260-ball plastic ball grid array (PBGA) package with 1.0 mm ball pitch and 17 mm × 17 mm body size. Thermal and mechanical specifications comply with JEDEC MO-218AB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDINT | Core Power Supply | 1.0–1.6 V supply for processor core; requires tight regulation and local decoupling to sustain 350 MHz operation. |
| VDDIO | I/O Power Supply | 3.3 V supply for all digital I/Os (PCI, USB, SPORT, SPI, UART); tolerant of standard logic-level peripherals. |
| CLKIN | External Clock Input | Accepts 1–50 MHz crystal or oscillator input; feeds on-chip PLL with 1×–31× multiplier for generating 350 MHz core clock. |
| RESET | Active-Low Reset Input | Asynchronous reset signal; initiates boot sequence from on-chip ROM or configured external memory source. |
| BOOT[3:0] | Boot Configuration Pins | Four-pin strap determines boot source (ROM, SPI flash, parallel flash, or external SDRAM) at power-up. |
| PCI_AD[31:0] | PCI Address/Data Multiplexed Bus | 32-bit multiplexed address/data lines for PCI 2.2 interface; supports 132 MB/s peak bandwidth in 33 MHz mode. |
| USB_DP / USB_DM | USB Differential Data Lines | Full-speed (12 Mbps) USB 1.1 differential pair; requires 27 Ω series termination and 1.5 kΩ pull-up on DP for device enumeration. |
Key Features
| Feature | Design Value |
|---|---|
| Dual 16-bit MAC + Quad Video ALUs | Enables concurrent execution of two 16×16 multiply-accumulate operations per cycle plus video-specific arithmetic (e.g., motion estimation, chroma subsampling) without CPU intervention. |
| Memory Management Unit (MMU) | Provides hardware-enforced memory protection across tasks and prevents unauthorized access to system registers - essential for RTOS-based secure embedded systems. |
| Glueless External Memory Controllers | Integrates PC133 SDRAM and asynchronous memory controllers - eliminates external logic for interfacing up to 512 MB SDRAM and 256 MB flash/SRAM, reducing BOM cost and PCB area. |
| Zero-Overhead Looping | Hardware-accelerated loop control eliminates branch penalties for tight DSP loops (e.g., FIR filters), improving instruction throughput by up to 30% versus software-managed loops. |
| Flexible Event Handling Architecture | Two-stage interrupt controller (SIC + CEC) with nested, prioritized interrupts and configurable vector mapping - ensures deterministic response to real-time events (e.g., SPORT DMA completion, timer PWM edge). |
Applications
| VoIP Terminal Baseband Processing | Industrial HMI Controller |
|---|---|
Use Scenario: Real-time encoding/decoding of G.729/G.711 voice streams with echo cancellation and DTMF detection in compact SIP phones. IC Role / Device Role / Timing Role: Primary baseband processor executing DSP kernels, managing USB HID interface for keypad/display, and synchronizing audio sampling via SPORTs. Use Value: 350 MHz core + dual MACs deliver >200 MIPS sustained throughput for concurrent voice channels; 256 KB L2 SRAM stores codec coefficients and packet buffers without external memory latency. |
Use Scenario: Local operator interface for PLC-based machinery with touch screen, alarm logging, and fieldbus gateway functions. IC Role / Device Role / Timing Role: System-on-chip controller running RTOS, driving LCD via GPIO/SPORT, polling sensors via SPI, and bridging Modbus RTU over UART to EtherNet/IP via PCI-connected Ethernet MAC. Use Value: Integrated PCI and dual UARTs eliminate interface ICs; dynamic power management extends uptime in fanless enclosures; L1 cache ensures deterministic UI response under load. |
| Portable Medical Imaging Display | Automotive Infotainment Gateway |
Use Scenario: Battery-powered ultrasound display unit rendering B-mode images and overlaying measurement annotations in real time. IC Role / Device Role / Timing Role: Image processing engine performing scan conversion and contrast enhancement, coordinating frame capture via SPORT-connected ADC, and updating TFT display through programmable flag-driven timing signals. Use Value: 40-bit accumulators prevent precision loss in multi-stage filtering; 1.0 V core voltage minimizes active power draw; 260-ball PBGA fits constrained medical enclosure layouts. |
Use Scenario: In-vehicle head unit aggregating audio sources (Bluetooth A2DP, USB media, FM tuner) and routing to amplifier via I²S, while managing CAN diagnostics and OTA updates. IC Role / Device Role / Timing Role: Central multimedia processor handling audio decoding, USB mass storage, and CAN message filtering - using UART for diagnostic debug and PCI for legacy ASIC co-processing. Use Value: USB 1.1 device port enables secure firmware updates via service laptop; programmable flags implement custom CAN wake-up signaling; L2 SRAM caches audio decode buffers for glitch-free playback. |
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-BF533KCPZ-500 | 500 MHz core, 136-ball CSP package, no PCI interface, reduced L2 SRAM (64 KB), same L1 memory map. | Better suited for space-constrained, high-MIPS-only applications (e.g., motor control) where PCI expansion is unnecessary. | Select when maximum computational throughput in minimal footprint is required and PCI/USB device functionality is not needed. |
| ADSP-BF537KBCZ-500 | 500 MHz core, 256-ball PBGA, adds EMAC (10/100 Ethernet MAC), retains PCI and USB, same memory hierarchy. | Targeted at networked embedded systems requiring wired Ethernet connectivity alongside PCI expansion and USB device capability. | Choose when integrating native Ethernet with existing PCI/USB infrastructure - avoids external PHY and reduces layer-2 protocol stack overhead. |
Compared with ADSP-BF535PKB-350, the BF533 offers higher clock speed in smaller package but sacrifices PCI and half the L2 SRAM; the BF537 adds Ethernet MAC at same package size and frequency, enabling network-aware designs without external MAC chips - both require revalidation of power delivery and thermal design due to different voltage/current profiles.
Availability
ADSP-BF535PKB-350 is available at Aetrix Electronics and suitable for portable digital communication appliances, industrial human-machine interfaces, and battery-powered medical imaging displays requiring stable component supply across extended production lifecycles.
Supply support for ADSP-BF535PKB-350 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 digital signal processing semiconductors, headquartered in Norwood, MA, with design centers worldwide and ISO 9001-certified manufacturing.
The ADSP-BF535PKB-350 belongs to the Blackfin family - engineered for applications demanding combined general-purpose control and real-time signal processing in low-power, highly integrated SoC form factors, especially portable and embedded communications equipment.
FAQ
What is the maximum operating frequency of the ADSP-BF535PKB-350?
The ADSP-BF535PKB-350 is rated for a maximum core clock frequency of 350 MHz, achieved using its on-chip PLL with programmable multiplication factor (1× to 31×) driven by an external 1–50 MHz reference clock. This frequency is guaranteed across the commercial temperature range (0°C to 70°C) with proper 1.0–1.6 V core supply regulation and thermal management.
Does the ADSP-BF535PKB-350 support booting from external flash memory?
Yes, the ADSP-BF535PKB-350 supports booting from external parallel flash memory via its asynchronous memory controller. Boot mode is selected by strapping BOOT[3:0] pins at power-up; configuration 0x01 (BOOT3=0, BOOT2=0, BOOT1=0, BOOT0=1) enables boot from async memory bank 0, allowing execution directly from flash without copying to RAM.
Can the ADSP-BF535PKB-350 operate as a PCI bus master?
Yes, the ADSP-BF535PKB-350 supports full PCI 2.2 master and slave functionality. As a master, it can initiate transactions to configure and communicate with other PCI devices; as a slave, it responds to accesses from a host CPU. Both modes use the same 32-bit, 33 MHz interface with dedicated configuration, I/O, and memory address spaces mapped into the processor's 4 GB address space.
What type of USB interface does the ADSP-BF535PKB-350 provide?
The ADSP-BF535PKB-350 integrates a USB 1.1-compliant device-only interface - it cannot function as a USB host. The interface supports full-speed (12 Mbps) operation with built-in transceiver, requiring only external 27 Ω series resistors and a 1.5 kΩ pull-up resistor on USB_DP for enumeration as a standard USB device (e.g., CDC ACM, HID, or vendor-specific class).
How much on-chip memory does the ADSP-BF535PKB-350 have, and how is it organized?
The ADSP-BF535PKB-350 contains 308 KB of on-chip memory: 16 KB L1 instruction SRAM/cache, two 16 KB L1 data SRAM/cache banks (32 KB total), 4 KB L1 scratch pad SRAM, and 256 KB unified L2 SRAM. L1 memories operate at full core speed with configurable cache/SRAM modes; L2 SRAM provides high-bandwidth unified code/data storage with slightly higher latency than L1.
ADSP-BF535PKB-350 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- Blackfin®
- Package/Case:
- 260-BBGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Type:
- Fixed Point
- Interface:
- PCI, SPI, SSP, UART, USB
- Clock Rate:
- 350MHz
- Non-Volatile Memory:
- External
- On-Chip RAM:
- 308kB
- Voltage - I/O:
- 3.30V
- Voltage - Core:
- 1.60V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 260-PBGA (19x19)
ADSP-BF535PKB-350 FAQ
1.How can I place an order for ADSP-BF535PKB-350 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-BF535PKB-350 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-BF535PKB-350 reliable?
The price and inventory of ADSP-BF535PKB-350 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-BF535PKB-350 is usually 5 days.
3.What payment methods are accepted for ADSP-BF535PKB-350?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-BF535PKB-350 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-BF535PKB-350?
ADSP-BF535PKB-350 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-BF535PKB-350 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-BF535PKB-350?
For technical support, including ADSP-BF535PKB-350 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-BF535PKB-350 requirements.
6.How does Aetrix verify that ADSP-BF535PKB-350 is sourced from the original manufacturer or authorized distributors?
All ADSP-BF535PKB-350 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-BF535PKB-350 meets industry standards.
7.What is the process for return or replacement of ADSP-BF535PKB-350?
All ADSP-BF535PKB-350 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-BF535PKB-350, 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-BF535PKB-350 part is unused and in its original packaging.
Return procedure for ADSP-BF535PKB-350:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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