AMD XCV400-4HQ240C

Overview

XCV400-4HQ240C from Xilinx is a 2.5 V SRAM-based Field Programmable Gate Array (FPGA) with 468,252 system gates, 10,800 logic cells, and 404 maximum user I/O pins in a 240-pin High Heat Dissipation Quad Flat Pack (HQ240) package. It features four delay-locked loops (DLLs), hierarchical memory (including 81,920 bits of block SelectRAM), and supports 66-MHz PCI-compliant interfaces for high-speed embedded control and digital signal processing applications.

For engineers reviewing the XCV400-4HQ240C datasheet, pinout, applications, or equivalent options, this page delivers verified architecture details, I/O banking constraints, CLB-level timing behavior, DLL jitter specifications, and migration guidance from Virtex-1 generation devices.

Technical Context

The XCV400-4HQ240C implements a regular array architecture with configurable logic blocks (CLBs) surrounded by programmable input/output blocks (IOBs), interconnected via a hierarchical routing matrix including GRM, Hex lines, Longlines, and VersaRing periphery routing. Each CLB contains four logic cells with 4-input LUTs, dedicated carry chains, and dual flip-flops per slice.

It supports eight I/O banks with independent VCCO and VREF domains, enabling mixed-voltage operation across standards including LVTTL, LVCMOS2, SSTL2/3, HSTL Class I/III/IV, and GTL/GTL+. All IOBs include IEEE 1149.1 boundary-scan, programmable slew rate, drive strength up to 24 mA source / 48 mA sink, and optional weak-keeper circuits.

Key Specifications

Pinout & Package

Package: 240-pin High Heat Dissipation Quad Flat Pack (HQ240), 32 mm × 32 mm body, 0.5 mm pitch, thermally enhanced for sustained 2.5 V operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XCV400-4HQ240C, the -5 speed grade offers margin for timing-critical paths without layout changes, while the XCV600-4BG560C provides scalable I/O and memory but requires BGA rework and new thermal design.

Availability

XCV400-4HQ240C is available at Aetrix Electronics and suitable for legacy telecom infrastructure upgrades, industrial motion controller replacements, and aerospace avionics spares programs requiring stable component supply under obsolescence management protocols.

Supply support for XCV400-4HQ240C 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, Inc. is a semiconductor company specializing in programmable logic devices, acquired by AMD in 2022; headquartered in San Jose, CA, it pioneered FPGA architecture and EDA tool ecosystems.

The Virtex family was designed for high-performance, high-density programmable logic applications demanding advanced clock management, mixed-voltage I/O, and scalable memory hierarchy - targeting communications infrastructure, defense systems, and high-end computing.

FAQ

What is the maximum operating frequency supported by XCV400-4HQ240C?

XCV400-4HQ240C supports synchronous system clock rates up to 200 MHz, including I/O timing. This is achieved using its four dedicated delay-locked loops (DLLs) and low-skew global clock networks. Worst-case register-to-register timing is specified at 5.0 ns for the -4 speed grade, validated under commercial temperature conditions (0°C to +85°C).

Does XCV400-4HQ240C support hot-swap functionality?

Yes, XCV400-4HQ240C supports hot-swappable operation for Compact PCI systems. Its I/O architecture complies with Compact PCI hot-swap requirements, including proper power sequencing, I/O isolation during insertion/removal, and robust ESD protection on all user pins - confirmed in DS003-1 Module 1 section "Hot-swappable for Compact PCI".

Can XCV400-4HQ240C interface directly with 5 V TTL logic?

XCV400-4HQ240C supports 5 V-tolerant inputs for LVTTL, PCI 5 V, and LVCMOS2 standards, but only when configured with appropriate VCCO and termination. Outputs are not 5 V tolerant - they operate at VCCO (1.5 V, 2.5 V, or 3.3 V). External level shifters are required for bidirectional 5 V signaling.

How many block RAMs does XCV400-4HQ240C contain?

XCV400-4HQ240C contains 20 block SelectRAM modules, each providing 4,096 bits of synchronous dual-ported memory, totaling 81,920 bits. Each block supports independent clocking, addressing, and data width configuration (e.g., 16×256 or 4×1024), enabling flexible FIFO, buffer, and lookup table implementations.

Is XCV400-4HQ240C still in active production?

No, XCV400-4HQ240C is obsolete per Xilinx documentation (DS003-1 v4.0, March 2013). The device is listed under "Product Obsolete/Under Obsolescence", and Xilinx recommends migration paths such as Spartan-6 or Artix-7 families. Aetrix Electronics provides last-time-buy support and traceable legacy stock for continued maintenance of installed systems.