AMD XC3S5000-4FG900C

Overview

XC3S5000-4FG900C from AMD (formerly Xilinx) is a Spartan-3 FPGA with 5,093,760 system gates, 17,280 logic cells, and 3,520,000 bits of block RAM. It features 633 user I/Os, operates at -4 speed grade (1.11 ns CLB delay), and is packaged in a 900-pin Fine-Pitch Ball Grid Array (FBGA). It targets high-volume embedded control and digital signal processing in industrial automation systems.

For engineers reviewing the XC3S5000-4FG900C datasheet, pinout, applications, or equivalent options, key selection criteria include logic density, I/O count, speed grade timing closure, and FBGA thermal/mechanical compatibility with existing PCB layouts.

Technical Context

The XC3S5000-4FG900C 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 interfaces 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 PLL components. Configuration is performed via Master Serial, Slave Serial, or JTAG modes using external PROM or processor-controlled loading.

Key Specifications

Pinout & Package

XC3S5000-4FG900C is housed in a 900-ball Fine-Pitch Ball Grid Array (FBGA) package with 35 × 35 ball array, 1.0 mm pitch, and 35 mm × 35 mm body size. Thermal and mechanical characteristics comply with JEDEC MO-230 standard.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XCV500E-8FG900C, XC3S5000-4FG900C delivers superior clock management and lower cost-per-gate; compared with XC3S4000-4FG900C, it provides verified headroom for I/O expansion and logic growth in long-lifecycle industrial deployments.

Availability

XC3S5000-4FG900C is available at Aetrix Electronics and suitable for industrial motion control, medical imaging subsystems, avionics data concentrators, and automated test equipment requiring stable component supply and long-term manufacturing continuity.

Supply support for XC3S5000-4FG900C 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 now develops and supports the Spartan, Virtex, and Zynq FPGA families originally created by Xilinx.

The Spartan-3 family, including XC3S5000-4FG900C, was designed for cost-sensitive, high-volume applications demanding predictable timing, rich I/O, and integrated clock management - especially in industrial and embedded systems.

FAQ

What is the core voltage requirement for XC3S5000-4FG900C?

The XC3S5000-4FG900C requires a regulated 1.2 V ±3% supply on VCCINT pins. This core voltage powers the FPGA's logic fabric and DCMs. Deviation beyond tolerance risks timing violations or configuration failure. Decoupling capacitors must be placed within 10 mm of each VCCINT ball per Xilinx UG331 guidelines. The XC3S5000-4FG900C does not support adaptive voltage scaling.

Does XC3S5000-4FG900C support JTAG boundary scan for production testing?

Yes, XC3S5000-4FG900C fully complies with IEEE 1149.1 (JTAG) for boundary scan. Its TCK, TMS, TDI, and TDO pins support INTEST, EXTEST, SAMPLE/PRELOAD, and BYPASS instructions. The XC3S5000-4FG900C also supports IDCODE and USERCODE registers, enabling automated board-level test and configuration verification during manufacturing.

Can XC3S5000-4FG900C interface directly with DDR SDRAM?

Yes, XC3S5000-4FG900C supports DDR SDRAM interfacing through its SelectIO™ I/O banks configured for SSTL_2 or SSTL_18 standards. Timing closure requires careful PCB layout and use of DCM-generated source-synchronous clocks. The XC3S5000-4FG900C does not include hard DDR controller IP - external logic or soft-core controllers must manage protocol sequencing.

What configuration memory options are compatible with XC3S5000-4FG900C?

XC3S5000-4FG900C supports Master Serial mode with XCFxxP Platform Flash PROMs (e.g., XCF04S, XCF08P) and Slave Serial mode with microcontrollers or processors. JTAG configuration is supported for debugging and field updates. The XC3S5000-4FG900C does not support internal flash or single-chip configuration - external nonvolatile memory is mandatory.

Is XC3S5000-4FG900C qualified for extended temperature operation?

No, XC3S5000-4FG900C is rated for commercial temperature range only (0°C to +85°C ambient). The 'C' suffix explicitly denotes commercial grade. For industrial (-40°C to +100°C) or automotive applications, Xilinx offered separate 'I' and 'Q' grade variants (e.g., XC3S5000-4FG900I), but XC3S5000-4FG900C itself is not qualified outside 0–85°C.