AMD XC4VLX25-10FFG668C

Overview

XC4VLX25-10FFG668C from AMD (formerly Xilinx) is a Virtex-4 LX family FPGA with 24,192 logic cells, 1.2 Mb of block RAM, and 192 DSP48 slices, configured in a 668-pin Fine-Pitch Flip-Chip BGA (FFG) package with 0.8 mm pitch and RoHS-compliant finish. It targets high-performance embedded processing and reconfigurable digital signal processing in telecom infrastructure equipment.

For engineers reviewing the XC4VLX25-10FFG668C datasheet, pinout, applications, or equivalent options, key selection factors include I/O count (448 user I/Os), speed grade (-10), thermal performance (max junction temperature 100°C), and configuration interface support (SelectMAP, JTAG, serial).

Technical Context

The XC4VLX25-10FFG668C implements a hierarchical FPGA architecture with configurable logic blocks (CLBs), dedicated DSP48 slices for multiply-accumulate operations, and flexible clock management using Digital Clock Managers (DCMs). It supports multi-voltage I/O banks (1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V) with programmable drive strength and slew rate control.

Configuration is performed via Master SelectMAP, Slave SelectMAP, or JTAG boundary-scan interfaces, with bitstream security enabled through AES encryption. The device includes integrated PCI Express™ Endpoint logic compliant with PCIe 1.0a specification and supports DDR/DDR2 SDRAM interfaces up to 400 MHz data rates.

Key Specifications

Pinout & Package

XC4VLX25-10FFG668C is housed in a 668-pin Fine-Pitch Flip-Chip BGA (FFG) package with 27×27 mm body size, 0.8 mm ball pitch, and RoHS-compliant lead-free finish. Pin functions are organized into 16 I/O banks, each supporting independent voltage standards and termination controls.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC4VLX25-10FFG668C, XC4VLX40-10FFG668C provides direct resource headroom within identical mechanical and thermal constraints, while XC5VLX30-1FFG676C delivers architectural improvements at the cost of board-level redesign and toolchain migration.

Availability

XC4VLX25-10FFG668C is available at Aetrix Electronics and suitable for wireless infrastructure, medical imaging, and industrial automation applications requiring stable component supply across extended product lifecycles.

Supply support for XC4VLX25-10FFG668C 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 and supports the Virtex FPGA portfolio for high-end reconfigurable computing applications.

The Virtex-4 family was originally designed by Xilinx to deliver scalable, high-performance logic density with integrated hard IP for communications, aerospace, and scientific instrumentation.

FAQ

What is the maximum operating frequency of the XC4VLX25-10FFG668C?

The XC4VLX25-10FFG668C has a -10 speed grade, meaning its internal logic paths are guaranteed to operate at up to 500 MHz for critical timing paths under worst-case conditions (100°C junction temperature, minimum VCCINT). Actual achievable frequency depends on design complexity, routing, and clocking architecture used in the implemented design.

Does the XC4VLX25-10FFG668C support JTAG boundary-scan testing?

Yes, the XC4VLX25-10FFG668C fully supports IEEE 1149.1 JTAG boundary-scan for device programming, debugging, and board-level interconnect testing. Its TAP controller enables configuration, readback, and verification of the configuration memory via standard JTAG signals (TCK, TMS, TDI, TDO, TREN).

Can the XC4VLX25-10FFG668C interface directly with DDR2 SDRAM?

Yes, the XC4VLX25-10FFG668C includes hardened DDR/DDR2 memory controller logic supporting data rates up to 400 MHz. It provides calibrated write leveling, read leveling, and dynamic phase alignment to ensure reliable operation with industry-standard DDR2 components without external PHY.

What configuration modes does the XC4VLX25-10FFG668C support?

The XC4VLX25-10FFG668C supports three primary configuration modes: Master SelectMAP (parallel), Slave SelectMAP (parallel), and JTAG. It also supports serial configuration via SPI flash using the Xilinx Platform Flash XL, with automatic boot from external memory upon power-up.

Is the XC4VLX25-10FFG668C still in active production?

The XC4VLX25-10FFG668C is a mature Virtex-4 device no longer in active production by AMD/Xilinx, but Aetrix Electronics maintains verified inventory and long-term supply support through authorized channels and lifecycle management programs.