The XC7VX485T-1FFG1927I is a high-performance Xilinx FPGA from AMD’s Virtex-7 XT family, engineered on an advanced 28 nm high-k metal gate (HKMG) process. Designed for demanding signal processing, networking, and ASIC prototyping workloads, this device delivers an exceptional balance of logic density, DSP throughput, transceiver bandwidth, and power efficiency — making it one of the most capable programmable logic devices in its class.
Overview of the XC7VX485T-1FFG1927I
The XC7VX485T-1FFG1927I belongs to AMD Xilinx’s Virtex-7 XT sub-family, which is specifically optimized for transceiver-intensive, high-bandwidth applications. With 485,760 logic cells, 600 user I/O pins, and a 1927-pin FCBGA package, this FPGA is built to meet the throughput and integration requirements of next-generation communications, radar, and high-performance computing systems.
Built on a state-of-the-art, high-performance, low-power (HPL) 28 nm process, the XC7VX485T-1FFG1927I enables up to 1.4 Tb/s of I/O bandwidth and 4.7 TMAC/s DSP performance, while consuming up to 50% less power than previous-generation devices. It serves as a fully programmable alternative to ASSPs and ASICs across a broad range of industries.
Key Specifications at a Glance
| Parameter |
Value |
| Part Number |
XC7VX485T-1FFG1927I |
| Manufacturer |
AMD (formerly Xilinx) |
| Family |
Virtex-7 XT |
| Logic Cells |
485,760 |
| Logic Units |
303,600 |
| DSP Slices |
2,800 |
| Max Operating Frequency |
547.95 MHz |
| User I/O Pins |
600 |
| Package |
FCBGA-1927 (1924-BBGA / FCBGA) |
| Package Pins |
1,927 |
| Process Node |
28 nm HKMG |
| Core Voltage (VCCINT) |
1.0 V |
| Operating Temperature Range |
0°C to +85°C (Industrial) |
| Configuration Voltage |
1.8 V |
| Block RAM |
68 Mb |
| RoHS Status |
RoHS Compliant |
Detailed Technical Specifications
Logic and Fabric Architecture
The XC7VX485T-1FFG1927I is built around Xilinx’s 7-series configurable logic block (CLB) architecture, offering massive parallelism and routing flexibility for complex digital designs.
| Fabric Resource |
Specification |
| Logic Cells |
485,760 |
| CLB Slices |
~75,900 |
| Flip-Flops |
~607,200 |
| LUT RAM |
Included in CLB slices |
| Max Distributed RAM |
8,430 Kb |
| Block RAM (36 Kb blocks) |
1,890 × 36 Kb |
| Total Block RAM |
68 Mb |
DSP Performance
The XC7VX485T-1FFG1927I integrates high-performance DSP48E1 slices that support advanced signal processing operations directly in hardware.
| DSP Feature |
Specification |
| DSP48E1 Slices |
2,800 |
| Multiplier Width |
25 × 18 bits |
| Accumulator Width |
48-bit |
| Peak Performance |
4.7 TMAC/s |
| Pre-adder Support |
Yes (optimized for symmetric FIR filters) |
| Cascade Chain |
Yes |
I/O and Transceiver Resources
| I/O Feature |
Specification |
| User I/O |
600 |
| Package |
FCBGA-1927 |
| GTH Transceivers |
Up to 56 × 13.1 Gbps |
| Total Serial Bandwidth |
Up to 1.4 Tb/s |
| I/O Standards Supported |
LVDS, SSTL, HSTL, LVCMOS, and more |
| PCIe Support |
Up to Gen3 x8 (Endpoint & Root Port) |
| Max I/O Voltage |
3.3 V |
Clock Management
| Clock Feature |
Specification |
| Clock Management Tiles (CMT) |
14 |
| PLLs per CMT |
1 |
| MMCMs per CMT |
1 |
| Global Clock Buffers |
32 |
| Regional Clock Buffers |
Supported |
Memory Interface Capabilities
| Memory Interface |
Maximum Supported Data Rate |
| DDR3 SDRAM |
Up to 1,866 Mb/s |
| LPDDR2 |
Supported |
| QDR II+ SRAM |
Supported |
| RLDRAM 2/3 |
Supported |
Configuration Options
| Configuration Method |
Supported |
| JTAG |
Yes |
| SPI Flash (Single/Dual/Quad) |
Yes |
| BPI Flash (Byte-wide Parallel) |
Yes |
| SelectMAP (×8 / ×16 / ×32) |
Yes |
| AES-256 Encryption |
Yes |
| HMAC/SHA-256 Authentication |
Yes |
| SEU Detection & Correction |
Built-in |
Package Information
FCBGA-1927 Package Details
| Package Parameter |
Value |
| Package Type |
Flip-Chip Ball Grid Array (FCBGA) |
| Pin Count |
1,927 |
| Body Size |
~45 mm × 45 mm |
| Ball Pitch |
1.0 mm |
| RoHS Compliant |
Yes |
The FFG1927 suffix in the part number denotes the fine-pitch flip-chip ball grid array with 1,927 pins. The “I” at the end indicates the Industrial temperature grade (0°C to +85°C), suited for applications demanding greater reliability than commercial (-1C) variants.
Part Number Decoder
Understanding the XC7VX485T-1FFG1927I part number is essential for ordering and design verification:
| Segment |
Meaning |
| XC |
Xilinx Commercial Device |
| 7V |
7-Series, Virtex Family |
| X |
XT Sub-family (transceiver-optimized) |
| 485 |
Approximate logic cell density (485K) |
| T |
Transceiver-grade device |
| -1 |
Speed Grade 1 (slowest / most power-efficient in the family) |
| FFG |
Fine-pitch Flip-Chip Ball Grid Array |
| 1927 |
Pin count (1,927 balls) |
| I |
Industrial temperature grade (0°C to +85°C) |
Applications for the XC7VX485T-1FFG1927I
High-Speed Networking (10G to 100G)
The XC7VX485T-1FFG1927I’s GTH transceiver channels — capable of up to 13.1 Gbps each — make it ideal for line cards, switching fabrics, and optical transport equipment in 10GbE, 40GbE, and 100GbE network infrastructure.
Portable and Phased-Array Radar
The combination of high DSP throughput (4.7 TMAC/s) and wide I/O bandwidth enables demanding real-time radar signal processing workloads, including beamforming, pulse compression, and clutter filtering.
ASIC Prototyping and Emulation
With nearly 486K logic cells and rich interconnect resources, the XC7VX485T-1FFG1927I is widely used to prototype large ASIC designs before tape-out, enabling faster verification cycles and reduced development risk.
Wired Communications Infrastructure
PCIe Gen3 x8 support, wide memory interfaces, and high-bandwidth transceivers make this device an excellent fit for baseband processing, protocol bridging, and backplane connectivity in telecom and datacom equipment.
Defense and Aerospace
Operating across the full industrial temperature range with built-in AES-256 encryption and SEU correction, the XC7VX485T-1FFG1927I meets the stringent requirements of military and aerospace signal intelligence (SIGINT), electronic warfare (EW), and secure communications systems.
High-Performance Computing (HPC) and Data Acceleration
The FPGA’s low-latency reconfigurable fabric makes it a strong candidate for hardware acceleration in financial computing, scientific simulation, machine learning inference, and database query acceleration.
Power and Thermal Considerations
Typical Power Profile
| Power Domain |
Voltage |
| Core (VCCINT) |
1.0 V |
| Block RAM (VCCBRAM) |
1.0 V |
| Auxiliary (VCCO) |
1.8 V / 2.5 V / 3.3 V (I/O bank dependent) |
| GTH Transceivers (MGTAVCC) |
1.0 V |
| GTH PLL (MGTAVTT) |
1.2 V |
The 28 nm HPL process allows the XC7VX485T-1FFG1927I to deliver significantly higher performance per watt compared to 40 nm predecessors. For thermal management, heatsinks, thermal interface materials (TIMs), or active cooling solutions are recommended for high-utilization designs.
Development and Design Tools
Supported EDA Software
| Tool |
Description |
| Xilinx Vivado Design Suite |
Primary synthesis, implementation, and bitstream generation tool (recommended) |
| Xilinx ISE Design Suite |
Legacy tool (limited support for 7-series) |
| Xilinx Vitis |
High-level synthesis (HLS) and software development platform |
| Third-Party Synplify, Genus |
Supported via standard netlist flow |
IP Cores and Reference Designs
AMD Xilinx provides a comprehensive library of validated IP cores for use with the XC7VX485T-1FFG1927I, including:
- PCIe Gen3 Endpoint IP
- 10G/100G Ethernet MAC
- DDR3/4 MIG (Memory Interface Generator)
- GTH transceiver wizard
- AXI4 Interconnect and DMA IP
- Video processing and image sensor pipelines
Ordering Information
| Part Number |
Speed Grade |
Temperature |
Package |
| XC7VX485T-1FFG1927I |
-1 (Slowest) |
Industrial (0°C to +85°C) |
FCBGA-1927 |
| XC7VX485T-2FFG1927I |
-2 (Standard) |
Industrial |
FCBGA-1927 |
| XC7VX485T-1FFG1927C |
-1 |
Commercial (0°C to +85°C) |
FCBGA-1927 |
Comparison: XC7VX485T-1FFG1927I vs. Similar Virtex-7 Devices
| Feature |
XC7VX485T-1FFG1927I |
XC7VX690T-1FFG1927I |
XC7VX415T-1FFG1927I |
| Logic Cells |
485,760 |
693,120 |
412,160 |
| DSP Slices |
2,800 |
3,600 |
2,160 |
| Block RAM |
68 Mb |
52.9 Mb |
33.7 Mb |
| User I/O |
600 |
600 |
600 |
| GTH Transceivers |
56 |
80 |
48 |
| Package |
FCBGA-1927 |
FCBGA-1927 |
FCBGA-1927 |
| Process |
28 nm |
28 nm |
28 nm |
Frequently Asked Questions (FAQ)
What is the XC7VX485T-1FFG1927I used for?
The XC7VX485T-1FFG1927I is used in high-bandwidth, compute-intensive applications including 10G–100G networking, ASIC prototyping, radar signal processing, defense electronics, and high-performance computing acceleration.
What programming tool is used for the XC7VX485T-1FFG1927I?
AMD Xilinx’s Vivado Design Suite is the recommended design environment. The device can also be programmed via JTAG using Vivado Hardware Manager, or through SPI/BPI flash for production deployment. Legacy ISE support is limited.
What does the “-1” speed grade mean?
The -1 speed grade is the slowest grade in the Virtex-7 family. It offers lower maximum clock frequencies compared to -2 and -3 grades, but also typically consumes less power and is more readily available. For many designs, especially those not pushing timing limits, -1 grade is the preferred cost-effective choice.
Is the XC7VX485T-1FFG1927I RoHS compliant?
Yes, the XC7VX485T-1FFG1927I is RoHS compliant, meeting the Restriction of Hazardous Substances directive requirements for lead-free manufacturing.
What is the operating temperature range?
The “I” suffix denotes the Industrial temperature grade, supporting operation from 0°C to +85°C — suitable for demanding environments where commercial-grade parts may not be adequate.
Can the XC7VX485T-1FFG1927I support PCIe?
Yes. The device includes integrated PCIe blocks supporting up to Gen3 x8 for both Endpoint and Root Port configurations, enabling direct integration with CPU and SoC platforms without external PCIe bridges.
Summary
The XC7VX485T-1FFG1927I is a proven, high-capability FPGA device from AMD’s Virtex-7 XT family that continues to serve demanding applications in networking, defense, radar, and HPC. Its combination of 485,760 logic cells, 2,800 DSP slices, 56 GTH transceivers, 600 user I/Os, and robust configuration security — all in a 1,927-pin FCBGA package on 28 nm HKMG technology — makes it a compelling programmable logic platform for engineers targeting high-performance, high-reliability designs.
Whether you are prototyping a next-generation ASIC, building a wideband radar receiver, or designing a 100G Ethernet line card, the XC7VX485T-1FFG1927I delivers the performance, integration, and design flexibility needed to succeed.
