AMD XC4VLX25-11FFG668I

Overview

XC4VLX25-11FFG668I from AMD (formerly Xilinx) is a Virtex-4 LX family FPGA with 24,576 logic cells, 1.2 Mb of block RAM, and 192 DSP48 slices. It features a 668-pin Fine-Pitch Flip-Chip BGA (FFG) package, rated for industrial temperature range (–40°C to +100°C), and supports SelectIO standards up to 800 Mbps. It is used in high-performance digital signal processing and reconfigurable computing systems.

For engineers reviewing the XC4VLX25-11FFG668I datasheet, pinout, applications, or equivalent options, key selection criteria include logic density, I/O voltage flexibility (1.2 V to 3.3 V), embedded multiplier count, clock management tile (CMT) capability, and industrial-grade thermal rating.

Technical Context

The XC4VLX25-11FFG668I implements a synchronous, SRAM-based configurable logic architecture with hierarchical routing, dedicated carry chains, and distributed memory. It integrates eight Digital Clock Managers (DCMs) supporting phase shifting, duty cycle correction, and frequency synthesis across multiple clock domains.

Its CMT includes DCMs and PLLs for jitter reduction and clock multiplication; I/O banks support independent voltage operation per bank and programmable slew rate. The device uses 90 nm copper process technology and requires external configuration PROM or JTAG for initialization.

Key Specifications

Pinout & Package

XC4VLX25-11FFG668I is housed in a 668-pin Fine-Pitch Flip-Chip BGA (FFG) package with 27 × 27 mm body size, 1.0 mm ball pitch, and Pb-free (RoHS-compliant) solder balls. Thermal pad on underside supports conduction cooling.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC4VLX25-11FFG668I, the XC4VLX25-10FF668C offers identical functionality at lower cost and reduced thermal qualification, while the XCVU9P-2FLGA2104I provides architectural evolution with orders-of-magnitude resource growth-neither is pin-compatible, and both require full HDL and PCB redesign.

Availability

XC4VLX25-11FFG668I is available at Aetrix Electronics and suitable for radar signal processing, industrial motor control, and medical imaging backend systems requiring stable component supply across extended lifecycle programs.

Supply support for XC4VLX25-11FFG668I 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 SoCs for data center, AI, and embedded markets.

The Virtex-4 LX family was designed for high-performance logic-intensive applications demanding balanced resources-logic, memory, and DSP-with industrial reliability and flexible I/O.

FAQ

What is the maximum operating frequency of the XC4VLX25-11FFG668I?

The XC4VLX25-11FFG668I is rated for a system clock frequency up to 500 MHz when using internal DCMs or PLLs. Its -11 speed grade guarantees timing closure for critical paths at this rate under industrial temperature conditions, with actual achievable frequency dependent on design placement and routing.

Does the XC4VLX25-11FFG668I support JTAG boundary-scan testing?

Yes, the XC4VLX25-11FFG668I fully complies with IEEE 1149.1 (JTAG) standard. It includes dedicated TDI, TDO, TMS, and TCK pins and supports INTEST, EXTEST, and SAMPLE/PRELOAD instructions for board-level verification and in-system programming.

What configuration modes does the XC4VLX25-11FFG668I support?

The XC4VLX25-11FFG668I supports Master Serial, Slave Serial, Master SelectMAP, Slave SelectMAP, and JTAG configuration modes. It can load bitstreams from SPI PROM, microprocessor bus, or JTAG interface, with automatic fallback to JTAG upon configuration failure.

Is the XC4VLX25-11FFG668I RoHS compliant?

Yes, the XC4VLX25-11FFG668I is RoHS compliant and Pb-free. Its FFG668 package uses lead-free solder balls and meets EU Directive 2011/65/EU requirements, with material declarations available in AMD's official product change notices.

Can the XC4VLX25-11FFG668I interface directly with DDR2 SDRAM?

Yes, the XC4VLX25-11FFG668I supports DDR2 SDRAM interfaces through its SelectIO standards and dedicated memory controller logic. It achieves data rates up to 400 MHz (800 Mbps) with proper PCB layout, termination, and timing constraints applied in the ISE design suite.