AMD XC5VLX85-3FFG676C

Overview

XC5VLX85-3FFG676C from AMD (formerly Xilinx) is a Virtex-5 FPGA featuring 85,200 logic cells, 480 DSP48E slices, and 4.2 MB of block RAM. It uses a 65 nm copper process, supports -3 speed grade (fastest), and is packaged in a 676-pin Flip-Chip Fine-Pitch Ball Grid Array (FFG). It targets high-performance digital signal processing in radar baseband subsystems.

For engineers reviewing the XC5VLX85-3FFG676C datasheet, pinout, applications, or equivalent options, key selection factors include I/O voltage support (1.2 V to 3.3 V), differential signaling capability (LVDS, RSDS, BLVDS), embedded multiplier performance (25×18 signed multiply), and configuration interface options (Master SelectMAP, Slave SelectMAP, JTAG).

Technical Context

The XC5VLX85-3FFG676C implements a hierarchical FPGA architecture with configurable logic blocks (CLBs), dedicated DSP48E slices for arithmetic-intensive tasks, and flexible memory resources including distributed RAM and block RAM. It supports multi-standard I/O banks with independent voltage domains per bank.

Configuration is performed via external SPI PROM, parallel slave mode, or JTAG boundary-scan; bitstream encryption and Device DNA protection are supported. The device includes integrated clock management tiles (CMTs) with dual DCMs and PLLs for low-jitter clock synthesis and phase alignment.

Key Specifications

Pinout & Package

XC5VLX85-3FFG676C is housed in a 676-pin Flip-Chip Fine-Pitch Ball Grid Array (FFG) package with 35 mm × 35 mm body size, 1.0 mm ball pitch, and Pb-free (RoHS-compliant) finish. Thermal characteristics include θ_JA = 5.9 °C/W and θ_JB = 2.2 °C/W.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-end FPGA applications.

Compared with XCVU9P-2FLGA2104I and XC6VLX130T-3FFG784C, the XC5VLX85-3FFG676C delivers optimal balance of mature 65 nm reliability, proven radiation tolerance, and sufficient DSP density for radar and avionics where long-term supply stability and qualification history outweigh raw performance gains.

Availability

XC5VLX85-3FFG676C is available at Aetrix Electronics and suitable for radar baseband processing, medical imaging backend acceleration, and avionics data concentrators requiring stable component supply over extended product lifecycles.

Supply support for XC5VLX85-3FFG676C 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 maintains the Virtex FPGA product line for high-performance programmable logic solutions.

The Virtex-5 family was designed specifically for compute-intensive, high-bandwidth applications in defense, aerospace, and medical imaging where predictable timing, large on-chip memory, and multi-standard I/O interoperability are critical.

FAQ

What is the maximum operating frequency of the XC5VLX85-3FFG676C?

The XC5VLX85-3FFG676C has a -3 speed grade, meaning its maximum guaranteed clock frequency for internal logic is 550 MHz for carry chains and 400 MHz for distributed RAM. Actual achievable frequency depends on design placement and routing; timing closure tools report post-implementation frequencies per path. The XC5VLX85-3FFG676C supports up to 1.25 GHz on dedicated clock networks via its CMT PLLs.

Does the XC5VLX85-3FFG676C support JTAG boundary-scan testing?

Yes, the XC5VLX85-3FFG676C fully supports IEEE 1149.1 JTAG boundary-scan for device-level test and programming. TDI, TDO, TMS, and TCK pins are dedicated and compliant with standard JTAG protocols. The XC5VLX85-3FFG676C also allows JTAG configuration alongside other modes such as Master SelectMAP, enabling in-system reprogramming without hardware changes.

What configuration memory options are compatible with the XC5VLX85-3FFG676C?

The XC5VLX85-3FFG676C supports configuration from serial PROMs (e.g., XCFxx series), parallel flash devices, or host processors via Slave SelectMAP. It accepts 1.8 V or 3.3 V PROMs depending on VCCAUX setting. The XC5VLX85-3FFG676C does not integrate configuration memory and requires external nonvolatile storage; bitstream size is approximately 11.2 MB for full configuration.

Is the XC5VLX85-3FFG676C RoHS compliant and lead-free?

Yes, the XC5VLX85-3FFG676C is manufactured in a Pb-free (RoHS-compliant) process with matte tin finish on solder balls. Its FFG package meets JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) and requires bake conditioning before reflow if exposed beyond floor life. The XC5VLX85-3FFG676C documentation confirms full compliance with EU RoHS Directive 2011/65/EU and China RoHS.

Can the XC5VLX85-3FFG676C interface directly with DDR2 SDRAM?

Yes, the XC5VLX85-3FFG676C supports DDR2 SDRAM interfaces up to 400 Mbps per pin using its multi-standard I/O banks and source-synchronous capture logic. It includes dedicated IDELAY/ODELAY primitives and DQS alignment circuitry required for reliable DDR2 timing closure. The XC5VLX85-3FFG676C reference designs validate operation with Micron MT47H64M8BG-37E and similar components at full data rates.