AMD XC4VLX15-11FF676I

Overview

XC4VLX15-11FF676I from AMD (formerly Xilinx) is a Virtex-4 LX family FPGA with 14,579 logic cells, 1.2 Mb of block RAM, and a -11 speed grade operating at up to 650 MHz system clock. It features 320 user I/Os in a 676-pin Fine-Pitch Flip-Chip BGA (FF676) package and targets high-performance logic-intensive applications including protocol bridging and digital signal processing.

For engineers reviewing the XC4VLX15-11FF676I datasheet, pinout, applications, or equivalent options, key selection considerations include logic density, I/O count, speed grade timing closure, embedded memory capacity, and thermal performance in compact BGA layouts.

Technical Context

The XC4VLX15-11FF676I implements a hierarchical architecture with configurable logic blocks (CLBs), dedicated DSP slices, and flexible clock management tiles (CMTs) containing DCMs and PLLs. It supports SelectIO standards including LVDS, SSTL, HSTL, and PCI-X signaling across its 320 user I/Os.

Its -11 speed grade guarantees setup/hold timing margins for 650 MHz system clocks and 312.5 MHz DDR I/O rates. The device integrates 128 embedded 18×18 multipliers and supports partial reconfiguration via JTAG or ICAP interface.

Key Specifications

Pinout & Package

XC4VLX15-11FF676I is housed in a 676-ball Fine-Pitch Flip-Chip BGA (FF676) package with 320 user-configurable I/Os, 16 global clock inputs, and dedicated configuration/power/ground balls. Thermal and power delivery are enhanced by central VCCINT/VCCAUX arrays and perimeter ground balls.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC4VLX25-11FF676I and XC5VLX30-2FF676C, the XC4VLX15-11FF676I offers optimal balance of logic resources, I/O count, and thermal profile for mid-complexity embedded signal processing where upgrade path maturity and toolchain stability are critical.

Availability

XC4VLX15-11FF676I is available at Aetrix Electronics and suitable for high-speed protocol bridging, digital video processing, and radar signal processing requiring stable component supply across extended product lifecycles.

Supply support for XC4VLX15-11FF676I 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 continues development and support of the Virtex FPGA portfolio for high-performance computing and adaptive hardware applications.

The Virtex-4 LX family, including XC4VLX15-11FF676I, was engineered for logic-intensive embedded systems demanding deterministic timing, high I/O bandwidth, and integrated memory/DSP resources.

FAQ

What is the maximum system clock frequency supported by XC4VLX15-11FF676I?

The XC4VLX15-11FF676I has a -11 speed grade, guaranteeing timing closure for system clocks up to 650 MHz under standard operating conditions. This rating is verified through static timing analysis using Xilinx ISE 14.7 tools and applies to internal logic paths-not I/O interface rates, which are specified separately per standard (e.g., 312.5 MHz for DDR LVDS).

Does XC4VLX15-11FF676I support partial reconfiguration?

Yes, XC4VLX15-11FF676I supports partial reconfiguration via the Internal Configuration Access Port (ICAP) or JTAG interface. This allows dynamic replacement of logic modules while the rest of the design remains operational-critical for adaptive radar waveform updates or protocol stack switching without system reset.

What configuration modes are available for XC4VLX15-11FF676I?

XC4VLX15-11FF676I supports Master Serial, Slave Serial, Slave Parallel, and Boundary Scan (JTAG) configuration modes. Master Serial uses an external PROM and CCLK-driven bitstream loading; JTAG is used for debugging and in-system programming. All modes require proper INIT_B and PROGRAM_B sequencing per Xilinx UG070.

Is XC4VLX15-11FF676I RoHS compliant and lead-free?

Yes, XC4VLX15-11FF676I is RoHS compliant and manufactured with lead-free (Pb-free) packaging. The FF676 package uses matte tin finish on solder balls and meets JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) requirements for surface-mount assembly.

What thermal management guidance applies to XC4VLX15-11FF676I?

XC4VLX15-11FF676I requires a thermal solution capable of dissipating up to 5.2 W typical power under full utilization. Recommended layout includes 6×6 thermal vias under the die area, 2 oz copper inner layers, and a 15 mm² copper pad on the PCB bottom layer connected to chassis ground for heat spreading.