AMD XC4VSX55-11FF1148C

Overview

XC4VSX55-11FF1148C from AMD is a Virtex-4 SX family FPGA with 55,168 logic cells, 360 DSP48 slices, and 4.9 Mb of total block RAM. It features 1148-pin Flip-Chip Fine-Pitch Ball Grid Array (FF) packaging and operates at -1 speed grade (1.1 V core, 1.2 GHz internal clock), targeting high-performance embedded signal processing in radar and software-defined radio systems.

For engineers reviewing the XC4VSX55-11FF1148C datasheet, pinout, applications, or equivalent options, key selection criteria include I/O count (720 user I/Os), differential signaling support (LVDS, RSDS, HSTL), embedded PowerPC 405 cores, and compliance with IEEE 1149.1 JTAG boundary-scan.

Technical Context

The XC4VSX55-11FF1148C integrates two embedded PowerPC 405 RISC processors, each with 32 kB instruction and 32 kB data cache, enabling tightly coupled hardware/software co-design. It supports up to 720 user-configurable I/Os across 24 banks with programmable drive strength, slew rate, and on-chip termination.

Its architecture includes 360 dedicated 18×18-bit signed/unsigned multiplier-accumulator DSP48 slices, 4.9 Mb of distributed and block RAM (including 18-kb Block RAMs), and SelectIO technology supporting LVDS, RSDS, SSTL, and HSTL standards at up to 840 Mbps per differential pair.

Key Specifications

Pinout & Package

XC4VSX55-11FF1148C uses a 1148-pin Flip-Chip Fine-Pitch Ball Grid Array (FF1148) package with 35 × 35 mm body size, 1.0 mm ball pitch, and thermal lid. The package supports 24 I/O banks, dual VCCO supplies per bank, and dedicated configuration, JTAG, and clock pins.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC4VSX55-11FF1148C, XCVU9P offers scalable bandwidth and transceiver capability for future-proof designs, while XC6VLX240T delivers higher DSP density and lower static power but lacks integrated processors-making it ideal for pure datapath acceleration where host control is offloaded.

Availability

XC4VSX55-11FF1148C is available at Aetrix Electronics and suitable for radar signal processing, software-defined radio development, and medical imaging acceleration requiring stable component supply across long-lifecycle industrial programs.

Supply support for XC4VSX55-11FF1148C 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 specializing in adaptive computing, graphics, and AI acceleration technologies for data centers, embedded systems, and high-performance computing.

The Virtex-4 SX family was designed specifically for compute-intensive signal processing applications requiring tightly integrated processor cores, high-density DSP resources, and high-speed I/O-targeting defense, aerospace, and medical imaging markets.

FAQ

What is the core voltage requirement for XC4VSX55-11FF1148C?

The XC4VSX55-11FF1148C requires a nominal 1.1 V ±3% core supply (VCCINT) to meet its -1 speed grade timing specifications. This voltage must be tightly regulated with low-noise, high-current capability due to dynamic switching currents exceeding 10 A peak during intensive DSP operation. The XC4VSX55-11FF1148C datasheet specifies separate 2.5 V VCCAUX and bank-specific VCCO supplies for I/O compliance.

Does XC4VSX55-11FF1148C support partial reconfiguration?

Yes, the XC4VSX55-11FF1148C supports partial reconfiguration through its hierarchical design flow and dedicated configuration logic. This allows dynamic swapping of functional modules (e.g., different filter banks or modulation schemes) without resetting the entire device. The XC4VSX55-11FF1148C requires use of Xilinx ISE 14.7 or later tools and specific floorplanning constraints to ensure safe context isolation during bitstream updates.

How many clock regions does XC4VSX55-11FF1148C have, and what is their function?

The XC4VSX55-11FF1148C contains eight independent clock regions, each with dedicated global and regional clock buffers and routing networks. These regions allow localized clock domain management to minimize skew and reduce clock-related power consumption. Each region supports up to four primary clock inputs (MRCC/PRCC), and the XC4VSX55-11FF1148C's clocking architecture enables synchronous operation across heterogeneous logic blocks including PowerPC cores and DSP slices.

What JTAG standards does XC4VSX55-11FF1148C comply with?

The XC4VSX55-11FF1148C complies fully with IEEE Std 1149.1-2013 (JTAG Boundary-Scan) for configuration, debugging, and interconnect testing. Its TAP controller supports INTEST, EXTEST, SAMPLE/PRELOAD, and BYPASS instructions, and the XC4VSX55-11FF1148C supports boundary-scan testing of all user I/Os and internal logic states via standard JTAG chains in multi-FPGA systems.

Can XC4VSX55-11FF1148C interface directly with DDR2 SDRAM?

Yes, the XC4VSX55-11FF1148C supports direct DDR2 SDRAM interfacing using its SelectIO technology and dedicated memory controller primitives. It meets JEDEC DDR2-800 timing requirements with programmable input delays and output phase alignment. The XC4VSX55-11FF1148C requires external termination resistors and careful PCB layout for signal integrity, and reference designs validate operation up to 400 MHz clock frequency with 16-bit data buses.