AMD XC4VSX25-11FF668C

Overview

XC4VSX25-11FF668C from AMD is a Virtex-4 SX family FPGA with 24,192 logic cells, 1.25 Mb of block RAM, and 192 DSP48 slices, configured in a 668-pin Fine-Pitch Flip-Chip BGA (FF668) package for high-performance embedded processing and digital signal acceleration.

For engineers reviewing the XC4VSX25-11FF668C datasheet, pinout, applications, or equivalent options, key selection criteria include I/O count (448 user I/Os), speed grade (-11), LVDS/BLVDS support, SelectIO™ interface flexibility, and integrated PowerPC 405 hard processor core compatibility.

Technical Context

The XC4VSX25-11FF668C implements a hierarchical architecture with configurable logic blocks (CLBs), dedicated DSP48 slices for multiply-accumulate operations, and dual-port block RAM with true dual-port widths up to 36 bits. It supports multi-standard I/O including LVCMOS, LVTTL, HSTL, SSTL, and differential standards such as LVDS and BLVDS.

This device integrates two PowerPC 405 RISC processor cores, enabling tightly coupled hardware/software co-design. Clock management includes four Digital Clock Managers (DCMs) per clock region, supporting phase shifting, duty cycle correction, and frequency synthesis with ±1% jitter tolerance over temperature and voltage.

Key Specifications

Pinout & Package

The XC4VSX25-11FF668C is housed in a 668-ball Fine-Pitch Flip-Chip BGA (FF668) package with thermal lid, designed for high-density PCB routing and thermal dissipation in industrial and telecom applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance embedded FPGA applications.

Compared with XC4VSX25-11FF668C, the XCVU9P offers generational improvements in bandwidth and density but removes PowerPC compatibility, while the XC5VLX50T increases logic capacity without embedded processors-making XC4VSX25-11FF668C uniquely suited for legacy PowerPC-based avionics and radar upgrades.

Availability

XC4VSX25-11FF668C is available at Aetrix Electronics and suitable for radar signal processing, medical imaging backend systems, and industrial motion control applications requiring stable component supply and long-term obsolescence management.

Supply support for XC4VSX25-11FF668C 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 is a global semiconductor company focused on high-performance and adaptive computing solutions for data centers, AI, embedded systems, and client devices.

The Virtex-4 SX family was engineered for system-on-chip integration in signal-intensive applications, combining FPGA fabric with hardened PowerPC processors and high-speed serial I/O for aerospace, defense, and medical imaging platforms.

FAQ

What is the maximum operating frequency supported by the XC4VSX25-11FF668C?

The XC4VSX25-11FF668C speed grade -11 guarantees timing closure up to 500 MHz for internal logic paths under worst-case process, voltage, and temperature conditions. Its Digital Clock Managers support output frequencies up to 1 GHz with jitter specifications defined in the Virtex-4 DC and Switching Characteristics datasheet. Actual system frequency depends on design implementation and I/O standard selection.

Does the XC4VSX25-11FF668C include embedded processor cores?

Yes, the XC4VSX25-11FF668C integrates two hard-core PowerPC 405 RISC processors, each with 32 KB instruction and 32 KB data cache, enabling concurrent firmware execution and hardware acceleration. These cores are fully compliant with PowerPC Book III-E architecture and support JTAG debug via the embedded processor debug unit (EPDU).

What I/O standards are supported by the XC4VSX25-11FF668C?

The XC4VSX25-11FF668C supports 18 SelectIO™ standards including LVCMOS, LVTTL, HSTL, SSTL, LVDS, and BLVDS. Each I/O bank operates independently with programmable VCCO (1.2–3.3 V), drive strength, and termination. Differential standards support data rates up to 840 Mbps per lane with matched internal delays.

Is partial reconfiguration supported on the XC4VSX25-11FF668C?

Yes, the XC4VSX25-11FF668C supports partial reconfiguration through its ICAP (Internal Configuration Access Port) interface, allowing dynamic loading of logic modules into designated reconfigurable partitions without resetting the entire device. This capability is documented in UG070 and requires use of Xilinx ISE 14.7 or earlier toolchain with specific bitstream generation settings.

What is the thermal design power (TDP) range for the XC4VSX25-11FF668C?

The XC4VSX25-11FF668C has a typical thermal design power of 6.5 W under full utilization at 85°C ambient, with maximum junction temperature rated at 100°C. Thermal management requires a 27×27 mm thermal lid-compatible heatsink and 2-layer copper pour under the FF668 package. Power consumption varies significantly based on logic utilization, I/O activity, and clock frequency.