FPGA Market

Obsolete device

XCS05XL replacement options

The AMD Xilinx XCS05XL has been discontinued by the manufacturer. There are two ways forward, and for most people reading this the first one is the answer: keep the design and source the part. Changing device means a board revision, so it is only worth it if you are redesigning anyway.

1. Keep the design — source the XCS05XL

Discontinued parts are still traded. We hold 8 orderable XCS05XL parts — send the exact code and quantity and we'll come back with stock and pricing, including date-code and traceability requirements.

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Part numberPackagePinsSpeedTemperature
XCS05XL-4PC84CPC84844Commercial
XCS05XL-5PC84CPC84845Commercial
XCS05XL-4VQ100CVQ1001004Commercial
XCS05XL-4VQ100IVQ1001004Industrial
XCS05XL-5VQ100CVQ1001005Commercial
XCS05XL-4VQG100CVQG1001004Commercial
XCS05XL-4VQG100IVQG1004Industrial
XCS05XL-5VQG100CVQG1005Commercial

A different package or speed grade of the same device is the closest thing to a like-for-like change: the silicon is the same, so only the footprint or timing differs. It still needs checking against your board.

What to check before changing device

  • Footprint and pinout

    Ball count, pitch and pin assignment all differ between families. A new device means a new layout.

  • I/O voltages and banks

    Supported I/O standards, bank voltages and the number of banks change between generations.

  • Core and I/O supplies

    Newer devices usually run a lower core voltage and need a different power tree.

  • Configuration

    Flash type, configuration mode and boot timing are family-specific.

  • Tools and IP

    The design has to be rebuilt in the current toolchain, and IP cores may need replacing or re-licensing.

  • Temperature and lifetime

    Check the grade you need exists, and how long the new family is expected to stay in production.

Where a design cannot be revised — certified equipment, long-life industrial and defence builds — sourcing the original is normally the cheaper route, even at obsolete pricing.

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