AMD XC4VLX40-10FF668I
- Part No.:
- XC4VLX40-10FF668I
- Manufacturer:
- AMD
- Category:
- FPGAs (Field Programmable Gate Array)
- Package:
- 668-BBGA, FCBGA
- Datasheet:
-
XC4VLX40-10FF668I.pdf
- Description:
- IC FPGA 448 I/O 668FCBGA
- Quantity:
- Payment:

- Shipping:

Inventory:2,685
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Product details
Overview
XC4VLX40-10FF668I from AMD (formerly Xilinx) is a Virtex-4 LX family FPGA with 41,472 logic cells, 2.5 Gbps multi-gigabit transceivers, and embedded PowerPC 405 cores. It features 2,016 Kbits of block RAM, 128 DSP48 slices, and operates at -10 speed grade (1.0 ns CLB delay). It is used in high-performance digital signal processing and reconfigurable computing systems.
For engineers reviewing the XC4VLX40-10FF668I datasheet, pinout, applications, or equivalent options, key selection criteria include I/O count (448 user I/Os), package type (FF668 flip-chip BGA), voltage supply (1.2 V core / 2.5 V I/O), and thermal performance for industrial temperature operation (-40°C to +100°C).
Technical Context
The XC4VLX40-10FF668I implements a hierarchical FPGA architecture with configurable logic blocks (CLBs), distributed RAM, and dedicated routing resources. It integrates 128 DSP48 slices for arithmetic-intensive tasks and supports DDR2 memory interfaces up to 400 MHz.
This device includes 24 multi-gigabit transceivers capable of 2.5 Gbps line rates, and embeds dual PowerPC 405 RISC processors for system-on-chip control functions. Configuration is performed via SelectMAP or JTAG interfaces using external PROM or processor-controlled loading.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Cells | 41,472 - determines maximum combinational/sequential logic capacity for RTL implementation |
| User I/O Pins | 448 - supports high-pin-count interface bridging and parallel bus expansion |
| Block RAM | 2,016 Kbits - enables on-chip data buffering and FIFO implementation without external memory |
| DSP Slices | 128 - provides dedicated hardware for multiply-accumulate operations in filter and FFT engines |
| Transceiver Speed | 2.5 Gbps - enables serial connectivity to optical modules, SERDES links, and high-speed ADC/DAC interfaces |
| Operating Temp | -40°C to +100°C - qualified for extended industrial and aerospace environments |
| Core Voltage | 1.2 V ±3% - defines power delivery requirements and low-voltage regulator selection |
Pinout & Package
XC4VLX40-10FF668I is housed in a 668-pin flip-chip fine-pitch BGA (FF668) package with 35 × 35 mm body size, 1.0 mm ball pitch, and Pb-free (RoHS-compliant) solder balls. Thermal pad on underside requires PCB thermal via array per Xilinx UG070.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCCINT | Core power supply | Must be filtered and decoupled within 10 mm of each power ball group to meet 1.2 V rail stability |
| VCCO_0 | I/O bank power | Configurable per-bank voltage (1.2–3.3 V); sets output swing and input threshold for associated pins |
| PROGRAM_B | Configuration reset | Active-low asynchronous reset that clears configuration memory and initiates reload sequence |
| DONE | Configuration status | Open-drain output indicating successful bitstream load completion; pulled high externally |
| CLKIN | Primary clock input | Accepts single-ended or differential clocks up to 500 MHz for global clock network distribution |
| MGTREFCLK | Transceiver reference clock | Provides clean 125–250 MHz reference for multi-gigabit transceiver PLL lock and jitter tolerance |
Key Features
| Feature | Design Value |
|---|---|
| Embedded PowerPC 405 cores | Enables soft-core processor integration for real-time control alongside programmable logic |
| Multi-Gigabit Transceivers | Supports protocol-agnostic serial links including Aurora, RocketIO, and custom 8b/10b encoding |
| SelectMAP configuration | Allows FPGA programming via parallel microprocessor bus for in-system field updates |
| Partial Reconfiguration | Permits dynamic logic module swapping without full device reset or system interruption |
| DDR2 memory controller hard IP | Reduces timing closure effort and resource usage for 400 MHz DDR2 SDRAM interfacing |
Applications
| Radar Signal Processing | Medical Imaging Backend |
|---|---|
Use Scenario: Real-time beamforming and pulse-Doppler processing in phased-array radar systems. IC Role / Device Role / Timing Role: FPGA fabric executes time-critical filtering and FFT algorithms; transceivers interface with high-speed ADCs and DACs. Use Value: 128 DSP48 slices enable concurrent 1024-point FFTs; 2.5 Gbps transceivers sustain raw sensor data ingestion at >2 Gbps aggregate. | Use Scenario: Image reconstruction pipeline in CT and MRI scanners requiring deterministic latency and high throughput. IC Role / Device Role / Timing Role: Configurable logic manages pixel data flow between detector arrays, memory buffers, and GPU preprocessing units. Use Value: 448 user I/Os support parallel 32-bit DDR2 memory channels; embedded PowerPC handles system boot and calibration sequencing. |
| Avionics Data Concentrator | High-Speed Test Equipment |
Use Scenario: ARINC 429, MIL-STD-1553, and discrete I/O aggregation in flight control computers. IC Role / Device Role / Timing Role: FPGA implements protocol translation, time-stamping, and fault-tolerant arbitration logic across multiple avionics buses. Use Value: Industrial temperature rating (-40°C to +100°C) ensures reliability in uncontrolled avionics bays; partial reconfiguration allows runtime protocol updates. | Use Scenario: Automated test equipment capturing and analyzing high-frequency analog waveforms from DUTs. IC Role / Device Role / Timing Role: FPGA synchronizes multi-channel digitizers, performs real-time pattern matching, and streams results over PCIe or Ethernet. Use Value: Block RAM (2,016 Kbits) enables deep acquisition buffers; 24 transceivers support parallel 2.5 Gbps data lanes to host controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-density reconfigurable logic applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XC4VLX60-11FF668I | Higher logic density (60K LC), faster speed grade (-11), same FF668 package | Supports larger designs with more complex control logic and wider datapaths | Choose when design exceeds XC4VLX40-10FF668I resource utilization by >15% |
| XC5VLX50T-1FF665C | Virtex-5 architecture, 50K logic cells, 665-pin FFG665 package, lower static power | Offers improved DSP efficiency and integrated PCIe endpoints not present in XC4VLX40-10FF668I | Prefer for new designs requiring PCI Express Gen1 or reduced power-per-GHz |
Compared with XC4VLX40-10FF668I, the XC4VLX60-11FF668I delivers higher gate count and timing margin for scaling existing Virtex-4 designs, while the XC5VLX50T-1FF665C introduces architectural enhancements like enhanced clocking and built-in PCIe blocks-making it suitable for next-generation platforms where legacy compatibility is not required.
Availability
XC4VLX40-10FF668I is available at Aetrix Electronics and suitable for radar signal processing, medical imaging backend, avionics data concentration, and high-speed test equipment requiring stable component supply across long-lifecycle programs.
Supply support for XC4VLX40-10FF668I 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
AMD acquired Xilinx in 2022 and now develops adaptive computing platforms including FPGAs, adaptive SoCs, and AI accelerators for data center, communications, and embedded markets.
The Virtex-4 family was originally designed by Xilinx to deliver high-performance reconfigurable logic with integrated processors and serial connectivity for demanding compute-accelerated and protocol-agile systems.
FAQ
What is the maximum supported I/O standard for XC4VLX40-10FF668I?
The XC4VLX40-10FF668I supports LVCMOS, LVTTL, SSTL, HSTL, and differential standards including LVDS and RSDS across its 448 user I/Os. Each I/O bank is independently configurable for voltages from 1.2 V to 3.3 V, enabling mixed-voltage interface design without level shifters. The XC4VLX40-10FF668I does not support newer standards such as MIPI or sub-1.0 V I/O families introduced in later Virtex generations.
Does XC4VLX40-10FF668I support partial reconfiguration?
Yes, the XC4VLX40-10FF668I supports partial reconfiguration through Xilinx's PlanAhead and ISE tools, allowing dynamic replacement of logic modules while the rest of the design remains operational. This capability is implemented in hardware via frame-based bitstream addressing and configuration port arbitration. The XC4VLX40-10FF668I requires external configuration memory partitioning and careful floorplanning to isolate reconfigurable regions.
What is the recommended configuration mode for XC4VLX40-10FF668I in production systems?
The recommended configuration mode for XC4VLX40-10FF668I in production is Master SelectMAP with an external SPI PROM (e.g., XCFxx series), providing fast, reliable, and field-upgradable bitstream loading. JTAG is reserved for debugging and initial prototyping. The XC4VLX40-10FF668I supports dual-PROM fallback and CRC verification to ensure configuration integrity during power-up sequences.
Can XC4VLX40-10FF668I operate in automotive AEC-Q100 qualified environments?
No, the XC4VLX40-10FF668I is rated for industrial temperature range (-40°C to +100°C) but is not AEC-Q100 qualified. It lacks automotive-specific screening, failure-in-time (FIT) reporting, and qualification testing per AEC standards. For automotive applications, designers must perform additional system-level validation and consider Xilinx's automotive-grade Virtex-5QV or newer AMD Versal derivatives instead of relying on XC4VLX40-10FF668I alone.
What debug interfaces are available on XC4VLX40-10FF668I?
The XC4VLX40-10FF668I provides IEEE 1149.1 JTAG boundary-scan for interconnect testing and configuration access, plus ChipScope Pro ILA (Integrated Logic Analyzer) support for in-circuit signal observation using embedded probe points. Debug visibility is limited to user-defined signals routed to dedicated debug ports; no on-die ARM CoreSight or processor trace is available since the PowerPC 405 cores lack ETM support in this generation. The XC4VLX40-10FF668I does not include UART or SWD interfaces.
XC4VLX40-10FF668I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- AMD
- Series:
- Virtex®-4 LX
- Package/Case:
- 668-BBGA, FCBGA
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Number of LABs/CLBs:
- 4608
- Number of Logic Elements/Cells:
- 41472
- Total RAM Bits:
- 1769472
- Number of I/O:
- 448
- Number of Gates:
- -
- Voltage - Supply:
- 1.14V ~ 1.26V
- Mounting Type:
- Surface Mount
- Operating Temperature:
- -40°C ~ 100°C (TJ)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 668-FCBGA (27x27)
XC4VLX40-10FF668I FAQ
1.How can I place an order for XC4VLX40-10FF668I through Aetrix?
Please submit a Request for Quotation (RFQ) for XC4VLX40-10FF668I 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 XC4VLX40-10FF668I reliable?
The price and inventory of XC4VLX40-10FF668I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XC4VLX40-10FF668I is usually 5 days.
3.What payment methods are accepted for XC4VLX40-10FF668I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XC4VLX40-10FF668I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XC4VLX40-10FF668I?
XC4VLX40-10FF668I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XC4VLX40-10FF668I 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 XC4VLX40-10FF668I?
For technical support, including XC4VLX40-10FF668I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XC4VLX40-10FF668I requirements.
6.How does Aetrix verify that XC4VLX40-10FF668I is sourced from the original manufacturer or authorized distributors?
All XC4VLX40-10FF668I 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 XC4VLX40-10FF668I meets industry standards.
7.What is the process for return or replacement of XC4VLX40-10FF668I?
All XC4VLX40-10FF668I units undergo pre-shipment inspection (PSI). If there is an issue with XC4VLX40-10FF668I, 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 XC4VLX40-10FF668I part is unused and in its original packaging.
Return procedure for XC4VLX40-10FF668I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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