AMD XC5VLX85-1FF676C

Overview

XC5VLX85-1FF676C from AMD (formerly Xilinx) is a Virtex-5 LX family FPGA with 85,200 logic cells, 4.8 Mb of block RAM, and 240 DSP48E slices. It features 676-pin Flip-Chip Fine-Pitch Ball Grid Array (FF676) packaging and operates at -1 speed grade for industrial temperature range (0°C to 85°C). It is used in high-performance digital signal processing and reconfigurable computing systems.

For engineers reviewing the XC5VLX85-1FF676C datasheet, pinout, applications, or equivalent options, key selection criteria include logic density, embedded memory capacity, DSP slice count, I/O voltage support (1.2 V/1.5 V/1.8 V/2.5 V/3.3 V), and transceiver availability (this variant has no built-in transceivers).

Technical Context

The XC5VLX85-1FF676C implements a hierarchical FPGA architecture with configurable logic blocks (CLBs), distributed RAM, shift registers, and dedicated carry logic. It supports SelectIO™ technology with programmable I/O standards including LVCMOS, LVTTL, SSTL, HSTL, and differential standards such as LVDS and RSDS.

It integrates clock management tiles (CMTs) containing DCMs and PLLs for precise clock synthesis, phase alignment, and jitter reduction. The device lacks RocketIO™ multi-gigabit transceivers, distinguishing it from FX and SX variants in the Virtex-5 family.

Key Specifications

Pinout & Package

XC5VLX85-1FF676C is housed in a 676-ball flip-chip fine-pitch BGA (FF676) package with thermal lid and 1.0 mm ball pitch. Pin functions are organized into I/O banks, configuration pins (e.g., INIT_B, PROGRAM_B, CCLK), configuration mode pins (M0–M2), JTAG boundary-scan pins (TCK, TMS, TDI, TDO), and dedicated clock inputs (GCLK, GTCLK).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar FPGA-based acceleration applications.

Compared with XC5VLX85-1FF676C, XC5VLX110-1FF676C offers headroom within identical form factor and timing, while XC6VLX75T-1FF484C trades package size and transceiver capability for architectural advancement-neither is pin-compatible, but both serve adjacent reconfigurable compute roles.

Availability

XC5VLX85-1FF676C is available at Aetrix Electronics and suitable for wireless infrastructure, medical imaging systems, and industrial automation requiring stable component supply throughout extended product lifecycles.

Supply support for XC5VLX85-1FF676C 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, ACAPs, and software tools for heterogeneous acceleration.

The Virtex-5 family was originally designed by Xilinx for high-performance logic, DSP, and embedded processing applications demanding predictable timing, large on-chip memory, and flexible I/O.

FAQ

What is the maximum supported I/O standard voltage for XC5VLX85-1FF676C?

The XC5VLX85-1FF676C supports I/O bank voltages of 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V. Each I/O bank is independently configurable, allowing mixed-voltage operation across different banks. This enables direct interfacing with legacy and modern peripherals without level-shifting circuitry, provided voltage translation rules per bank are observed in PCB layout.

Does XC5VLX85-1FF676C include built-in high-speed transceivers?

No, XC5VLX85-1FF676C does not include RocketIO™ multi-gigabit transceivers. It belongs to the LX (Logic eXtended) subfamily of Virtex-5, which focuses on logic density and DSP resources rather than serial I/O. For transceiver capability, engineers must select FX (FX = Fabric + Transceivers) or SX (Signal Processing) variants such as XC5VFX70T or XC5VSX95T.

What configuration modes are supported by XC5VLX85-1FF676C?

XC5VLX85-1FF676C supports Master Serial, Slave Serial, Slave Parallel, and JTAG configuration modes. Configuration is initiated via PROGRAM_B, with mode selected using M0–M2 pins. Bitstream loading can occur from SPI flash (Master Serial), microcontroller (Slave Parallel), or JTAG debugger-enabling flexibility in production programming and field updates.

Is XC5VLX85-1FF676C qualified for automotive applications?

No, XC5VLX85-1FF676C is rated for industrial temperature range (0°C to +85°C) and is not AEC-Q100 qualified. It lacks automotive-grade screening, extended temperature testing (-40°C to +125°C), and failure rate documentation required for automotive ECUs. For automotive use, consider Xilinx Automotive (XA) variants or newer AMD Versal ACAPs with automotive qualification.

What clock resources are available on XC5VLX85-1FF676C?

XC5VLX85-1FF676C includes four Clock Management Tiles (CMTs), each containing two Digital Clock Managers (DCMs) and one Phase-Locked Loop (PLL). These provide jitter filtering, frequency synthesis, phase shifting, and duty-cycle correction. Global clock networks distribute clocks with low skew to all logic and I/O regions, supporting synchronous design across large FPGA fabric.