| MODEL P/N | SERIES | NUMBER OF LABS/CLBS | SPEED GRADE | NUMBER OF LOGIC ELEMENTS / CELLS | TOTAL RAM BITS | NUMBER OF I/O | VOLTAGE – SUPPLY | MOUNTING TYPE | OPERATING TEMPERATURE | PACKAGE / CASE | SUPPLIER DEVICE PACKAGE |
|---|---|---|---|---|---|---|---|---|---|---|---|
| XC4VLX100-11FF1148C | Virtex-4 LX | 11.520,00 | -11,00 | 99840 | 4478976 | 768 | 1.14 V ~ 1.26 V | Surface Mount | 0 °C ~ +85 °C (Commercial) | 1148-BBGA (FCBGA) | 1148-FCBGA |
XC4VLX100-11FF1148C: High-Speed Logic Integration for Premium Commercial Systems
The XC4VLX100-11FF1148C represents the high-performance tier of the Virtex®-4 LX family, specifically binned for the -11 speed grade. Built on Xilinx’s advanced 90nm ASMBL™ (Advanced Silicon Modular Block) architecture, this FPGA is designed for architects who require a massive logic fabric—110,592 Logic Cells—combined with the tighter timing margins necessary for high-frequency data processing.
Housed in the FF1148 Flip-Chip BGA package, it provides an exceptional balance of logic density, high-speed clocking, and robust I/O throughput for commercial-grade applications (0°C to +85°C).
Core Engineering Highlights
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Fastest Logic Fabric (-11 Speed Grade): The -11 grade offers significantly reduced propagation delays compared to the standard -10 models. This provides the critical timing headroom required for 300MHz+ internal bus speeds and complex, multi-level logic paths.
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High-Density Resource Array: With 110,592 Logic Cells and 4,320 Kb of Block RAM, the LX100 provides ample space for consolidating multiple IP cores, deep FIFO buffers, and sophisticated custom RTL without routing saturation.
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Advanced SelectIO™ Capability: The FF1148 package exposes 768 User I/Os, supporting a wide range of differential and single-ended signaling standards. The Flip-Chip design minimizes lead inductance, ensuring superior signal integrity for high-speed memory interfaces like DDR2 and QDR-II.
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XtremeDSP™ Performance: Features 96 dedicated DSP48 slices. These hard-coded blocks facilitate high-speed 18×18 arithmetic and MAC operations, making the device highly effective for real-time video processing and digital filtering.
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Clocking Precision: Integrated Digital Clock Managers (DCMs) provide sub-nanosecond skew control and frequency synthesis, ensuring global synchronization across massive, multi-clock domain designs.
Technical Specification Matrix
| Feature | Specification |
| Logic Cells | 110,592 |
| Configurable Logic Blocks (CLBs) | 12,480 |
| Total Block RAM | 4,320 Kb |
| DSP48 Slices | 96 |
| Maximum User I/O | 768 |
| Speed Grade | -11 (High Performance) |
| Temperature Grade | Commercial (0°C to +85°C) |
| Package Type | FF1148 (Flip-Chip BGA) |
Hardware Architect’s Perspective: Why Specify the LX100-11C?
1. Faster Timing Closure
In high-utilization designs, routing congestion often eats into the timing budget. Choosing the -11 speed grade provides the necessary setup-and-hold slack to achieve timing closure more efficiently, reducing development cycles and ensuring “right-the-first-time” silicon behavior.
2. Signal Integrity at Scale
Driving nearly 800 I/Os simultaneously requires an exceptionally clean power distribution network. The FF1148 package is engineered with an extensive array of power and ground pins to mitigate Simultaneous Switching Noise (SSN), which is critical for maintaining robust noise margins in high-speed parallel architectures.
3. Mature Toolchain & Field Reliability
The Virtex-4 LX100 is a time-tested platform. For commercial systems with long lifecycles—such as medical imaging backplanes, professional broadcasting gear, or high-end instrumentation—the stability of the 90nm process and its well-documented errata offer a low-risk path to production.
Primary Applications
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Professional Video: 4K format conversion, real-time encoding, and high-end switching.
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Medical Systems: Advanced MRI/CT data acquisition and reconstruction backends.
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Test & Measurement: High-speed logic analyzers and automated test equipment (ATE).
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Communications: Protocol bridging and localized high-speed switching fabrics.
