AMD XC3S5000-5FGG900C

Overview

XC3S5000-5FGG900C from AMD (formerly Xilinx) is a Spartan-3 FPGA with 5,093,760 system gates, 17,280 logic cells, and 3,888 Kbits of block RAM. It features 633 user I/Os, operates at -5 speed grade (equivalent to 333 MHz system clock), and uses a 900-pin Fine-Pitch Ball Grid Array (FBGA) package. It is used in high-bandwidth industrial control and reconfigurable digital signal processing systems.

For engineers reviewing the XC3S5000-5FGG900C datasheet, pinout, applications, or equivalent options, key selection criteria include logic density, I/O count, embedded RAM capacity, speed grade timing closure, and thermal performance in compact PCB layouts.

Technical Context

The XC3S5000-5FGG900C 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 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

The XC3S5000-5FGG900C is housed in a 900-ball Fine-Pitch Ball Grid Array (FGG) package with 35 mm × 35 mm body size and 1.0 mm ball pitch. Thermal pad is exposed on underside for enhanced heat dissipation in high-utilization designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC3S5000-4FGG900C and XC3S4000-5FGG900C, the XC3S5000-5FGG900C delivers highest system gate count and fastest speed grade in the 900-pin FGG package, making it optimal for bandwidth-intensive, latency-critical implementations where logic utilization exceeds 85% and clock rates approach 300+ MHz.

Availability

XC3S5000-5FGG900C is available at Aetrix Electronics and suitable for industrial motion control, medical imaging interface, avionics data concentration, and automated test equipment requiring stable component supply and long-term production continuity.

Supply support for XC3S5000-5FGG900C 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 is a global semiconductor leader delivering adaptive computing solutions, acquired Xilinx in 2022 to expand its FPGA and adaptive SoC portfolio for data center, AI, and embedded markets.

The Spartan-3 family was designed for cost-sensitive, high-volume applications requiring balanced logic density, I/O flexibility, and low-power operation-targeting industrial automation, communications infrastructure, and instrumentation.

FAQ

What is the maximum operating frequency supported by the XC3S5000-5FGG900C?

The XC3S5000-5FGG900C is rated at speed grade -5, guaranteeing timing closure for system clock frequencies up to 333 MHz under standard junction temperature and voltage conditions. Actual achievable frequency depends on design placement, routing, and resource utilization. The device's Digital Clock Managers support input clocks up to 500 MHz for internal multiplication and division.

Does the XC3S5000-5FGG900C support JTAG configuration?

Yes, the XC3S5000-5FGG900C supports IEEE 1149.1 JTAG boundary-scan configuration via TCK, TMS, TDI, and TDO pins. This mode enables in-system programming, debug access, and verification without requiring external configuration PROM. JTAG is fully compliant and usable for both initial programming and field updates.

How much block RAM does the XC3S5000-5FGG900C provide?

The XC3S5000-5FGG900C provides 3,888 Kbits of total block RAM, organized as 864 dual-port RAM blocks of 4 Kbits each. This memory is distributed across the FPGA fabric and supports synchronous read/write, true dual-port, and write-first/read-first modes-enabling efficient implementation of FIFOs, buffers, and lookup tables without external memory.

Can the XC3S5000-5FGG900C interface directly with DDR SDRAM?

Yes, the XC3S5000-5FGG900C supports DDR SDRAM interfacing through its SelectIO technology, which includes SSTL_2 and SSTL_18 I/O standards. Proper board layout, termination, and timing-constrained design are required. Xilinx UG331 documents verified DDR controller reference designs compatible with this device.

What thermal considerations apply to the XC3S5000-5FGG900C in high-utilization designs?

The XC3S5000-5FGG900C uses a thermally enhanced 900-pin FGG package with an exposed thermal pad. In high-utilization designs exceeding 70% logic usage, a 4-layer PCB with internal ground/power planes and ≥4 thermal vias under the pad is recommended. Junction temperature must remain ≤85°C for commercial-grade operation; thermal simulation using Xilinx XPower Analyzer is advised.