AMD XC3S2000-4FGG900C

Overview

XC3S2000-4FGG900C from AMD (formerly Xilinx) is a Spartan-3 FPGA with 2,000,000 system gates, 17,280 logic cells, and 512 KB of block RAM. It features 633 user I/Os, operates at -4 speed grade (t_PD = 4.5 ns), and is packaged in a 900-pin Fine-Pitch Ball Grid Array (FBGA) with lead-free finish. It targets high-volume embedded control and interface bridging applications.

For engineers reviewing the XC3S2000-4FGG900C datasheet, pinout, applications, or equivalent options, key selection criteria include logic density, I/O count, block RAM capacity, speed grade timing, and FBGA thermal/mechanical compatibility in industrial control and communications hardware.

Technical Context

The XC3S2000-4FGG900C implements a hierarchical FPGA architecture with configurable logic blocks (CLBs), distributed RAM, and dedicated multipliers. It supports SelectIO™ standards including LVCMOS, LVTTL, HSTL, and SSTL across its 633 user I/O pins.

It integrates eight Digital Clock Managers (DCMs) for clock synthesis, phase shifting, and duty cycle correction, enabling precise timing control without external PLLs. Configuration is performed via Master Serial, Slave Serial, or JTAG modes using external PROM or processor-controlled interfaces.

Key Specifications

Pinout & Package

XC3S2000-4FGG900C is housed in a 900-ball Fine-Pitch BGA (FBGA) package with 1.0 mm ball pitch, RoHS-compliant lead-free solder balls, and thermal pad-compatible bottom surface for enhanced heat dissipation in high-density PCB layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar FPGA-based logic implementation applications.

Compared with XC3S1600E-4FGG676C and XC3S4000-4FGG900C, the XC3S2000-4FGG900C delivers balanced logic density, I/O availability, and thermal profile for mid-tier industrial FPGA applications-avoiding overdesign while supporting multi-standard interface integration.

Availability

XC3S2000-4FGG900C is available at Aetrix Electronics and suitable for industrial motion control, video interface bridging, and communications backplane applications requiring stable component supply across extended product lifecycles.

Supply support for XC3S2000-4FGG900C 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 continues development and support of the Spartan family for cost-sensitive, high-volume programmable logic applications.

The Spartan-3 series was designed specifically for embedded control, interface bridging, and digital signal preprocessing where ASIC-level performance is unnecessary but flexibility and time-to-market matter.

FAQ

What is the maximum operating frequency supported by XC3S2000-4FGG900C?

The XC3S2000-4FGG900C has a -4 speed grade, meaning its guaranteed maximum internal clock frequency is 250 MHz for typical logic paths. This value assumes proper timing constraints, placement, and routing; actual achievable frequency depends on design complexity and I/O standard selection. The eight integrated DCMs can synthesize higher-frequency clocks up to 320 MHz with jitter specifications defined in the Xilinx DS099 datasheet.

Does XC3S2000-4FGG900C support JTAG boundary scan testing?

Yes, XC3S2000-4FGG900C fully supports IEEE 1149.1 JTAG boundary scan via dedicated TCK, TMS, TDI, and TDO pins. This enables in-circuit testing, programming, and debugging without requiring external test fixtures. The JTAG interface also supports partial reconfiguration and configuration verification during production test sequences.

Can XC3S2000-4FGG900C be configured using an SPI flash memory?

No, XC3S2000-4FGG900C does not support native SPI flash configuration. It requires Master Serial mode with x1 or x2 width PROMs such as XCFxxP series or compatible parallel NOR flash devices. External microcontrollers may emulate Master Serial mode via GPIO, but direct SPI interface is not implemented in the configuration logic of XC3S2000-4FGG900C.

What thermal considerations apply to XC3S2000-4FGG900C in continuous operation?

XC3S2000-4FGG900C has a maximum junction temperature of 85°C and requires a thermal solution capable of dissipating up to 3.2 W under worst-case switching activity. The 900-ball FBGA package includes a thermal pad; use of a 6×6 mm thermal via array beneath the die area and 2 oz copper planes improves heat transfer. Ambient temperature must remain below 70°C for reliable long-term operation.

Is XC3S2000-4FGG900C pin-compatible with other Spartan-3 devices in the same package?

No, XC3S2000-4FGG900C is not pin-compatible with other Spartan-3 FPGAs-even those in the 900-ball FBGA package-due to differing I/O bank assignments, power pin allocations, and configuration pin placements. Each Spartan-3 variant uses a unique pinout optimized for its logic density and feature set; migration requires PCB redesign and I/O constraint updates.