AMD XC3S5000-4FGG900I

Overview

XC3S5000-4FGG900I from AMD (formerly Xilinx) is a Spartan-3 FPGA with 5,093,760 system gates, 17,280 logic cells, and 3,968 Kbits of block RAM. It features 633 user I/Os, operates at -4 speed grade (t_PD = 4.5 ns), and supports LVCMOS25/LVCMOS33/LVTTL/SSTL2/SSTL3 I/O standards. It is used in high-bandwidth industrial imaging and real-time protocol bridging.

For engineers reviewing the XC3S5000-4FGG900I datasheet, pinout, applications, or equivalent options, key selection criteria include logic cell count, I/O voltage compatibility, block RAM depth, speed grade timing margins, and thermal performance in dense PCB layouts.

Technical Context

The XC3S5000-4FGG900I implements a configurable logic fabric based on 4-input LUTs and distributed RAM, with dedicated carry chains for arithmetic. It integrates twelve 18×18 multipliers and supports Digital Clock Managers (DCMs) for internal clock synthesis and phase alignment.

Configuration is performed via Master Serial mode using external PROM or JTAG boundary-scan. The device supports IEEE 1149.1 compliance and includes SelectIO technology enabling mixed-voltage I/O banks with independent V_CCO per bank.

Key Specifications

Pinout & Package

XC3S5000-4FGG900I is housed in a 900-pin Fine-Pitch Ball Grid Array (FBGA) package with 35 mm × 35 mm body size and 1.0 mm ball pitch. Thermal pad on underside requires exposed copper area for conduction cooling.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC3S4000-4FGG900I and XCV500E-8FG900C, the XC3S5000-4FGG900I delivers higher logic density, integrated DSP capability, and tighter timing margins - making it the only option among the three capable of sustaining 633-MHz I/O toggle rates with setup/hold compliance.

Availability

XC3S5000-4FGG900I is available at Aetrix Electronics and suitable for industrial machine vision, protocol bridging, and high-speed data acquisition requiring stable component supply and long-term obsolescence management.

Supply support for XC3S5000-4FGG900I 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 adaptive computing platforms including FPGAs, MPSoCs, and ACAPs for data center, aerospace, and industrial markets.

The Spartan-3 family was designed for cost-sensitive, high-volume applications demanding predictable timing, low static power, and robust configuration security - targeting industrial control, video processing, and communications infrastructure.

FAQ

What is the maximum operating junction temperature for XC3S5000-4FGG900I?

The XC3S5000-4FGG900I has a maximum operating junction temperature of 85°C, validated under industrial temperature grade (-40°C to +85°C ambient). Thermal design must maintain θ_JA ≤ 12°C/W using 4-layer PCB with internal ground/power planes and ≥6 thermal vias under the package's exposed pad. Exceeding this limit risks configuration loss and timing violation in the XC3S5000-4FGG900I.

Does XC3S5000-4FGG900I support partial reconfiguration?

No, the XC3S5000-4FGG900I does not support partial reconfiguration. Its configuration architecture uses a single, monolithic bitstream loaded via Master Serial or JTAG. Runtime logic modification requires full reconfiguration, which halts all user logic for ~100 ms. This limitation applies specifically to the Spartan-3 generation; later families like Spartan-6 introduced partial reconfiguration support, but XC3S5000-4FGG900I remains fixed-function post-configuration.

What configuration modes are supported by XC3S5000-4FGG900I?

The XC3S5000-4FGG900I supports Master Serial, Slave Serial, Slave Parallel, and JTAG configuration modes. Master Serial uses an external SPI PROM to auto-load bitstream at power-up. JTAG is used for programming, debugging, and boundary-scan testing. Configuration mode is selected via MODE pins (M2:M0); for example, M2=1,M1=0,M0=0 selects Master Serial. All modes are documented in the XC3S5000-4FGG900I Configuration User Guide UG332.

Can XC3S5000-4FGG900I drive SSTL-2 I/O standards at 200 MHz?

Yes, the XC3S5000-4FGG900I supports SSTL-2 Class I operation up to 200 MHz in I/O banks configured with V_CCO = 2.5 V and proper termination. Signal integrity requires controlled-impedance routing (Z₀ = 50 Ω), on-die termination enabled, and matched trace lengths within 5 mm. Timing closure at 200 MHz is achievable with the -4 speed grade, as confirmed by Xilinx ISE timing reports for XC3S5000-4FGG900I.

Is there a pin-compatible replacement for XC3S5000-4FGG900I in newer Xilinx families?

No, there is no pin-compatible replacement for XC3S5000-4FGG900I in newer Xilinx families. Spartan-6 devices use different package footprints (e.g., CSBGA), have distinct pin functions (e.g., no dedicated PROGRAM_B), and require revised PCB layout. Migration to Artix-7 or Kintex-7 demands full HDL redesign due to architectural differences in CLB structure, memory mapping, and clocking. XC3S5000-4FGG900I remains a legacy part with no direct drop-in successor.