In a fast-moving tech world where FPGAs keep evolving, many mission-critical systems still rely on legacy components that are tried, tested, and trusted. The XC2S100-5FGG256C, a member of the Spartan®-II FPGA family from Xilinx (now AMD), exemplifies such components — delivering stable, deterministic logic in a compact, power-efficient package.
Whether you’re maintaining legacy equipment or developing cost-sensitive control logic, the XC2S100-5FGG256C remains a dependable solution for industrial, aerospace, telecom, and embedded system applications.
🔍 What is XC2S100-5FGG256C?
The XC2S100-5FGG256C is a Field Programmable Gate Array (FPGA) built on Xilinx’s 0.18μm Spartan-II architecture. Designed for low-cost, low-power, and general-purpose logic implementation, this FPGA features over 100,000 system gates and operates with a 2.5V core voltage.
It comes in a compact 256-pin Fine-Pitch Ball Grid Array (FBGA) package, offering dense I/O support and integration flexibility for embedded logic control, interfacing, and data processing.
📊 XC2S100-5FGG256C Technical Specifications
| Feature | Specification |
|---|---|
| Manufacturer | Xilinx (AMD) |
| Part Number | XC2S100-5FGG256C |
| FPGA Family | Spartan®-II |
| System Gates (Approx.) | 100,000 |
| Logic Cells | 1,200 |
| Slices | 1,200 |
| Flip-Flops | 2,400 |
| Distributed RAM | 40 Kbits (~5 KB) |
| Maximum User I/Os | 176 |
| Package | FGG256 (Fine-Pitch BGA, 1.0 mm pitch) |
| Core Voltage | 2.5V |
| Speed Grade | -5 (Standard performance) |
| Configuration | SRAM-based (requires external PROM) |
| Temperature Range | 0°C to +85°C (Commercial Grade “C”) |
| RoHS Compliance | Yes |
📄 Download the official Spartan-II Data Sheet (PDF) for complete technical details.
✅ Key Features and Benefits
Even though it belongs to a previous generation, the XC2S100-5FGG256C offers several compelling features:
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Cost-Efficient Logic Implementation
Ideal for applications requiring moderate logic density without the complexity or cost of modern FPGAs. -
Wide I/O Support
Up to 176 I/O pins supporting 3.3V and 2.5V standards (LVTTL, LVCMOS, GTL+, etc.). -
Instant-On Operation
Configures rapidly from external PROM — suitable for control logic and interface bridging. -
Reliable BGA Package
The FGG256 format provides excellent signal integrity and compact board layout. -
Legacy System Compatibility
Still widely used in equipment with long product life cycles and aerospace or industrial certifications.
🧠 Applications of XC2S100-5FGG256C
The XC2S100-5FGG256C remains in use in systems where deterministic logic, predictable startup, and legacy compatibility are critical.
🏭 Industrial Automation
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Custom I/O expansion logic
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Programmable control modules
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Safety-critical interlocks and relay logic
🚀 Aerospace & Defense
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Legacy avionics systems
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Secure logic control with non-volatile startup via external PROM
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Radiation-tolerant designs (with mitigation techniques)
📡 Telecommunications
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Protocol conversion and line interface logic
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Low-latency buffer control for packet-switched systems
🖥️ Embedded Control Systems
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Microcontroller co-processing
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Serial-to-parallel conversion and memory interfacing
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I2C/SPI bridge and peripheral emulation
🔌 Consumer and Legacy Devices
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Peripheral controller for printers, displays, and embedded appliances
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Backward compatibility in cost-sensitive consumer electronics
🔗 Looking for similar or upgraded programmable logic devices? Browse FPGAs and CPLDs at DRex Electronics.
🔧 Development Tools
The XC2S100-5FGG256C is supported by Xilinx ISE Design Suite, ideal for legacy FPGA development:
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HDL (VHDL / Verilog) and schematic design entry
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Integrated logic simulation and power analysis
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JTAG and PROM configuration support
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Design re-use through IP cores
🛠 Download ISE WebPACK – Free for Spartan-II devices.
🔗 Buy XC2S100-5FGG256C from DRex Electronics
At DRex Electronics, we help engineers and sourcing teams secure legacy FPGA components like the XC2S100-5FGG256C — even for designs with long life cycles and strict quality standards.
Why Source from DRex?
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✅ ISO 9001 Certified sourcing and logistics
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✅ Real-time inventory for FPGAs and programmable logic devices
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✅ EOL and legacy part support with quality assurance
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✅ Global delivery for OEMs, aerospace, telecom, and industrial sectors
📩 Request a quote or check current stock today.
🔁 Related Devices and Migration Options
Looking for Spartan-II alternatives or FPGA upgrades? Explore these:
| Device | Logic Cells | Package | Use Case |
|---|---|---|---|
| XC2S50-5PQ208C | 720 | QFP-208 | Lower density, smaller applications |
| XC2S100-5FGG256C | 1,200 | BGA-256 | Mid-density, high I/O flexibility |
| XC3S100E-4CPG132C | 2,160 | BGA-132 | Spartan-3E upgrade with more resources |
| XC7S25-CSGA225 | 23,360 | BGA-225 | Spartan-7 upgrade for new designs |
🧠 Need help with cross-referencing or migrating from Spartan-II? Talk to our experts for tailored support.
🧩 Summary
The XC2S100-5FGG256C may be from a legacy FPGA family, but it continues to power embedded systems across industries due to its reliability, predictability, and cost efficiency. Whether you’re extending the life of a proven product or maintaining long-standing infrastructure, this Spartan-II FPGA offers the logic density, I/O flexibility, and field programmability needed for dependable design.
At DRex Electronics, we make it easy to source legacy components like the XC2S100-5FGG256C — so you can focus on building solutions that last.
