AMD XC2S100-5FG456C

Overview

XC2S100-5FG456C from AMD (formerly Xilinx) is a Spartan-II family FPGA with 100,000 system gates, 1728 logic cells, and 128 I/O pins in a 456-pin Fine-Pitch Ball Grid Array (FBGA) package. It operates at 5 ns maximum input-to-output delay and supports 3.3 V I/O with 2.5 V core voltage, targeting cost-sensitive embedded control and interface bridging applications.

For engineers reviewing the XC2S100-5FG456C datasheet, pinout, applications, or equivalent options, key selection criteria include logic density, I/O count, speed grade (-5), FBGA456 thermal and routing constraints, and compatibility with Xilinx ISE 14.7 design tools.

Technical Context

The XC2S100-5FG456C implements configurable logic blocks (CLBs) with four-input LUTs and flip-flops, distributed RAM up to 56 kbits, and eighteen 18×18 multipliers. Its SelectIO technology supports LVCMOS, LVTTL, PCI, and SSTL-2 I/O standards with programmable slew rate and drive strength.

Configuration is performed via serial PROM or JTAG boundary-scan; it lacks on-chip configuration memory and requires external bitstream loading. The -5 speed grade guarantees timing performance across commercial temperature range (0°C to 85°C) with 3.3 V ±10% I/O supply and 2.5 V ±10% core supply.

Key Specifications

Pinout & Package

XC2S100-5FG456C uses a 456-ball fine-pitch BGA (FBGA) package with 20×20 array, 1.0 mm ball pitch, and standard JEDEC MO-230 footprint. Thermal pad is absent; mechanical mounting relies on solder joint integrity and board-level thermal management.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar FPGA-based interface and control applications.

Compared with XC2S100-5FG456C, XCV300E-4BG432C offers greater logic capacity but higher cost and power, while XC2S15-5TQ144C trades I/O count and thermal capability for ease of prototyping - neither is pin-compatible, requiring full PCB redesign.

Availability

XC2S100-5FG456C is available at Aetrix Electronics and suitable for industrial automation, medical device interface, and legacy system modernization requiring stable component supply and long-term obsolescence management.

Supply support for XC2S100-5FG456C 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 acquired Xilinx in 2022 and maintains legacy Spartan-II product documentation, toolchain support, and lifecycle notifications through the AMD Adaptive SoC portal.

The Spartan-II family was designed for cost-optimized, non-volatile configuration-reliant embedded control and interface bridging - prioritizing gate density per dollar over advanced features like embedded processors or high-speed transceivers.

FAQ

What configuration methods does the XC2S100-5FG456C support?

The XC2S100-5FG456C supports Master Serial (via external PROM), Slave Serial (host-driven), JTAG boundary-scan, and Boundary-Scan modes. It lacks internal configuration memory, so an external bitstream source is mandatory at power-up. Configuration occurs on power-on reset, and the mode is selected by M2:M0 pin states. The XC2S100-5FG456C does not support passive parallel or SelectMAP modes.

Is the XC2S100-5FG456C RoHS compliant?

Yes, the XC2S100-5FG456C is RoHS-6 compliant (lead-free solderable, no restricted substances above threshold). It meets JEDEC J-STD-020D moisture sensitivity level 3 (MSL3) and requires bake conditioning before reflow if exposed beyond floor life. The XC2S100-5FG456C packaging uses matte tin finish on solder balls.

Can the XC2S100-5FG456C operate with a 1.8 V I/O supply?

No, the XC2S100-5FG456C only supports 3.3 V I/O standards (LVCMOS33, LVTTL, PCI). Its I/O banks are not 1.8 V tolerant, and applying 1.8 V to VCCO may cause functional failure or damage. The XC2S100-5FG456C requires strict 3.3 V ±10% on I/O supplies and 2.5 V ±10% on VCCINT.

Does the XC2S100-5FG456C include built-in clock management circuitry?

No, the XC2S100-5FG456C lacks DLLs, PLLs, or DCMs. Clock distribution relies on global clock buffers (GCLK) with fixed fanout and no phase alignment or frequency synthesis. External clock conditioners or zero-delay buffers are required for skew-sensitive or multi-frequency designs. The XC2S100-5FG456C provides four dedicated GCLK inputs routed to all CLBs with low skew.

What software tools are required to develop for the XC2S100-5FG456C?

Xilinx ISE Design Suite 14.7 is the final supported version for XC2S100-5FG456C synthesis, place-and-route, and bitstream generation. Later tools like Vivado do not support Spartan-II devices. The XC2S100-5FG456C requires Foundation or WebPACK licenses; third-party tools (e.g., GHDL, Yosys) lack official timing models or bitstream validation for this device.