The XC7VX485T-2FFG1157I is a high-performance, industrial-grade Field Programmable Gate Array (FPGA) from AMD Xilinx, belonging to the powerful Virtex-7 XT family. Designed for demanding applications that require maximum logic capacity, ultra-fast signal processing, and robust I/O bandwidth, this device delivers enterprise-class programmable logic in a compact 1157-pin FCBGA package. Whether you are working in telecommunications, aerospace, defense, scientific computing, or high-speed networking, the XC7VX485T-2FFG1157I offers a compelling combination of performance, power efficiency, and flexibility. For engineers and buyers sourcing premium Xilinx FPGA components, this part represents one of the most capable mid-to-high-range Virtex-7 options available on the market today.

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What Is the XC7VX485T-2FFG1157I?

The XC7VX485T-2FFG1157I is a member of AMD Xilinx’s Virtex-7 XT FPGA family, fabricated on a state-of-the-art 28 nm High-K Metal Gate (HKMG) process node. The “XT” designation within the Virtex-7 family indicates an emphasis on high-speed transceiver performance and enhanced I/O capabilities, making this part particularly well-suited for connectivity-intensive workloads.

Part Number Breakdown

Understanding the XC7VX485T-2FFG1157I part number is key to identifying the exact configuration:

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XC7VX485T-2FFG1157I Key Specifications

The table below summarizes the critical electrical, logical, and physical specifications for the XC7VX485T-2FFG1157I:

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Core Architecture and Logic Resources

Configurable Logic Blocks (CLBs) and LUTs

The XC7VX485T-2FFG1157I contains 75,900 logic blocks, translating to approximately 485,760 equivalent logic cells. Each CLB in the Virtex-7 architecture includes six-input Look-Up Tables (LUTs) and flip-flops, enabling fine-grained logic optimization for both area-critical and performance-critical designs. This level of logic density makes the XC7VX485T-2FFG1157I suitable for complex ASIC prototyping and multi-function system integration on a single chip.

Block RAM (BRAM) Architecture

With over 37 Megabits of on-chip Block RAM, the device supports large embedded data buffers, FIFO queues, and local memory architectures essential for high-throughput signal processing pipelines. The BRAM is organized as dual-port, 36Kb primitive blocks (also usable as two independent 18Kb units), making memory partitioning flexible and design-friendly.

DSP48E1 Slices for High-Performance Arithmetic

The Virtex-7 XT DSP48E1 slice features a 25×18-bit multiplier, a 48-bit accumulator, and a pre-adder stage. This makes the XC7VX485T-2FFG1157I exceptionally powerful for DSP-intensive applications such as:

• Digital filtering (FIR, IIR)
• Fast Fourier Transforms (FFT)
• Radar signal processing
• High-frequency trading (HFT) acceleration
• Image and video processing pipelines

The architecture supports up to 4.7 TMAC/s DSP throughput at the family level, making the Virtex-7 XT a leader in programmable DSP performance.

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I/O and Clock Management

High-Performance I/O Banks

The XC7VX485T-2FFG1157I provides 600 user I/Os distributed across multiple I/O banks supporting both High-Performance (HP) and High-Range (HR) I/O standards. HP banks support voltage levels from 1.0 V to 1.8 V, while HR banks extend support up to 3.3 V, offering compatibility with a wide array of external interfaces and memory standards including DDR3, LPDDR2, and QDR II+.

Mixed-Mode Clock Manager (MMCM) and PLL

The device integrates multiple Clock Management Tiles (CMTs), each containing one MMCM and one PLL. These provide:

• Low-jitter clock synthesis and multiplication
• Phase shifting and duty-cycle correction
• Spread-spectrum clock generation support
• Independent clock domain management for multi-clock designs

The maximum internal operating frequency reaches 710 MHz, supporting demanding real-time applications.

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Connectivity and Transceiver Features

High-Speed Serial Transceivers

As an XT-class Virtex-7 device, the XC7VX485T-2FFG1157I includes GTX/GTH high-speed serial transceivers capable of operating at multi-gigabit data rates. These transceivers are fully compliant with industry-standard protocols and support line rates essential for:

• 10GbE and 40GbE Ethernet networking
• PCIe Gen3 endpoint and root port configurations (up to x8)
• CPRI/OBSAI for wireless infrastructure
• SATA/SAS storage interfaces
• Interlaken and CEI interconnect standards

Integrated PCIe Block

The device includes a hardened PCI Express block supporting up to Gen3 x8 configurations, eliminating the need for soft-IP PCIe implementations and freeing up fabric resources for application logic.

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Security and Configuration

AES-256 Encryption with Authentication

The XC7VX485T-2FFG1157I supports 256-bit AES encryption combined with HMAC/SHA-256 authentication for bitstream protection. This is critical for IP protection in commercial and military-grade products. The device also includes built-in Single Event Upset (SEU) detection and correction, making it suitable for radiation-aware and high-reliability deployment scenarios.

Configuration Options

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Package and Physical Specifications

FCBGA-1157 Package Details

The FCBGA package delivers excellent thermal performance and signal integrity for high-speed designs, with a fine-pitch ball arrangement that supports dense PCB routing while maintaining reliable solder joint integrity.

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Temperature and Operating Conditions

Industrial Temperature Grade (“I” Suffix)

The “I” suffix in XC7VX485T-2FFG1157I designates the industrial temperature range, meaning the device is guaranteed to operate within specifications across the following conditions:

Industrial-grade devices are essential in environments subject to wide temperature swings, vibration, and long operational lifetimes, such as:

• Industrial automation and control systems
• Telecommunications base stations
• Aerospace electronics
• Military and defense platforms
• Scientific instrumentation

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Software Tools and Design Flow

Xilinx Vivado Design Suite

The XC7VX485T-2FFG1157I is fully supported by the Xilinx Vivado Design Suite, AMD Xilinx’s flagship IDE for FPGA development. Vivado provides:

• IP Integrator for block-based design assembly
• High-level synthesis (HLS) via Vitis HLS
• Static timing analysis and power estimation
• In-circuit debugging with ILA (Integrated Logic Analyzer)
• One-click implementation targeting the FFG1157 package

Note: The older ISE Design Suite does not support Virtex-7 devices. Vivado 2013.1 or later is required for full XC7VX485T support.

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Typical Applications

The XC7VX485T-2FFG1157I is engineered to handle the most challenging compute and connectivity workloads across a broad range of industries:

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Ordering and Availability

The XC7VX485T-2FFG1157I is stocked and distributed by major authorized electronic component distributors. When placing an order or sourcing this part, confirm the following details to ensure you receive the correct device:

Tip: Always purchase from authorized distributors or the manufacturer directly to avoid counterfeit components, particularly for industrial and defense applications.

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Comparison: XC7VX485T-2FFG1157I vs. Related Virtex-7 Variants

Choose the XC7VX485T-2FFG1157I when you need industrial temperature coverage, speed grade –2 performance, and the compact 1157-pin footprint. Step up to the FFG1761 package for applications requiring more than 600 user I/Os.

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Summary

The XC7VX485T-2FFG1157I is a production-proven, industrial-grade Virtex-7 XT FPGA that combines 485,760 equivalent logic cells, 600 user I/Os, 37 Mb of Block RAM, 710 MHz maximum clock speed, and industry-leading DSP throughput in a 1157-pin FCBGA package. Its 28 nm HKMG process technology delivers up to 50% lower power compared to prior-generation Virtex-6 devices, without sacrificing logic density or raw speed. With support for hardened PCIe Gen3, GTX/GTH multi-gigabit transceivers, AES-256 bitstream encryption, and a full Vivado design flow, this device is an outstanding choice for engineers building next-generation communications, defense, industrial, and scientific computing systems.