AMD XC2V4000-4BF957I

Overview

XC2V4000-4BF957I from Xilinx is a high-density, industrial-grade Virtex-II platform FPGA with 4 million system gates, 23,040 CLBs, 120 Block SelectRAM™ modules (912 Kbits total), 720 dedicated 18×18 multipliers, and 12 Digital Clock Managers (DCMs). It delivers up to 420 MHz internal clock speed and supports 840+ Mb/s I/O performance in a 957-pin flip-chip BGA package, targeting high-speed telecom, networking, and DSP systems requiring PCI-X, LVDS, and DDR interfaces.

For engineers reviewing the XC2V4000-4BF957I datasheet, pinout, applications, or equivalent options, this page provides verified architecture details, I/O standard support (including DCI-enabled LVCMOS/LVDS/SSTL/HSTL), DCM timing parameters, package-specific I/O count (684 user I/Os), and validated alternative FPGAs for migration or sourcing continuity.

Technical Context

The XC2V4000-4BF957I implements a SRAM-based, reprogrammable logic array built on a 0.15 µm/0.12 µm 8-layer metal CMOS process with 1.5 V core (VCCINT), 3.3 V auxiliary (VCCAUX), and programmable I/O supply (VCCO). Its architecture integrates Configurable Logic Blocks (CLBs), 18-Kb dual-port Block SelectRAM, dedicated 18×18 multipliers, and 12 fully digital DCMs supporting precise de-skew, frequency synthesis (M/D ratio), and fine-grained phase shifting (1/256 period resolution).

It features SelectIO™-Ultra technology with 19 single-ended and 6 differential I/O standards-including PCI-X (133 MHz), LVDS (840 Mb/s), SSTL-2/3, HSTL, and GTL-plus Digitally Controlled Impedance (DCI) for on-die series/split termination. The BF957 flip-chip BGA package provides 684 user I/Os, excluding 15 dedicated configuration and boundary-scan control pins.

Key Specifications

Pinout & Package

The XC2V4000-4BF957I is housed in a 40 mm × 40 mm, 1.27 mm pitch flip-chip BGA package (BF957) with 957 balls. It provides 684 user I/Os distributed across 12 I/O banks, plus 15 dedicated configuration and test pins (CCLK, DONE, M0–M2, PROG_B, PWRDWN_B, TCK/TDI/TDO/TMS, HSWAP_EN, DXN/DXP, RSVD) and VBATT.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC2V4000-4BF957I, the XC7VX690T-2FFG1927I delivers 3× more logic resources and native DDR4 support, while the XCVU9P-2FLGA2104I introduces hardened AI engines and 100G Ethernet - both require toolchain migration but offer extended lifecycle and higher performance per watt.

Availability

XC2V4000-4BF957I is available at Aetrix Electronics and suitable for telecom infrastructure, industrial imaging, and high-speed networking applications requiring stable component supply, long-term obsolescence management, and traceable sourcing for legacy FPGA-based systems.

Supply support for XC2V4000-4BF957I 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

Xilinx, now part of AMD, pioneered programmable logic solutions and developed the Virtex family as high-performance, system-level FPGAs for demanding communications and computing applications.

The Virtex-II product line was engineered for high-speed, high-density logic implementation in telecom, networking, and DSP systems - emphasizing clock management, memory integration, and multi-standard I/O flexibility.

FAQ

What is the maximum operating junction temperature for the XC2V4000-4BF957I?

The XC2V4000-4BF957I is rated for industrial temperature range (–40°C to +100°C), with maximum junction temperature (T_J) of +100°C under specified thermal conditions. This rating is confirmed in DS031 Module 3, Electrical Characteristics, and applies to all speed grades (-4, -5, -6) in the BF957 package.

Does the XC2V4000-4BF957I support IEEE 1532 boundary-scan configuration?

Yes, the XC2V4000-4BF957I supports IEEE 1532-compliant boundary-scan configuration via its JTAG TAP controller. This enables in-system programming, readback, and verification of configuration bitstreams without requiring external configuration PROMs or microcontrollers.

How many global clock lines are available in the XC2V4000-4BF957I?

The XC2V4000-4BF957I provides 16 global clock lines - eight per quadrant - routed through dedicated low-skew networks. Each of the 12 DCMs can drive up to four of these global clock MUX buffers, enabling hierarchical clock distribution across large logic regions.

Can the XC2V4000-4BF957I interface directly with DDR2 SDRAM?

Yes, the XC2V4000-4BF957I supports DDR2 SDRAM interfacing using its SelectIO™-Ultra I/Os with SSTL_18_I/II standards and DCM-controlled phase-aligned capture clocks. Reference designs and timing constraints for 400–800 Mbps DDR2 operation are documented in Xilinx UG071 and application notes.

Is triple-DES bitstream encryption enabled by default on the XC2V4000-4BF957I?

No, triple-DES bitstream encryption is optional and must be explicitly enabled during bitstream generation using Xilinx ISE tools. When activated, it requires loading one or two 168-bit keys into on-chip non-volatile memory; the XC2V4000-4BF957I includes dedicated hardware decryptor logic to enforce security at configuration time.