Name: XC3S4000-4FG900C
Brand: AMD
SKU: XC3S4000-4FG900C
Availability: LimitedAvailability

Application Context

The XC3S4000-4FG900C has been deployed across mature system architectures that remain in active service within industrial and embedded environments. Given its lifecycle stage, this FPGA is most commonly sourced today to support long-term maintenance programs, spare inventory replenishment, and controlled replacement of field-deployed units. Procurement decisions for this device typically prioritize continuity, traceability, and lot-level verification to ensure consistency with existing hardware baselines.

Technical Specifications

Manufacturer	AMD
Part Number	XC3S4000-4FG900C
Series	Spartan®-3
Indicated Status	Mature/Legacy (verification required)
Package / Case	900-BBGA
Temperature Range	0°C ~ 85°C (TJ)
Logic Elements	62208
LABs / CLBs	6912
Total RAM Bits	1769472
Number of I/O	633
Number of Gates	4000000
Supply Voltage	1.14V ~ 1.26V

Compliance & Quality

Basic DocumentationCertificate of Conformance and traceability records provided.

Anti-CounterfeitSAE AS6081 testing protocols applied. Visual and X-ray inspection available.

EnvironmentalRoHS/REACH compliance information available upon request.

Additional NeedsSpecial testing or documentation discussed during inquiry.

Supply Chain Risk Assessment

Category	Level	Risk Factor	Mitigation
Supply Continuity	To be assessed	Lifecycle status requires verification	LTB assessment if applicable
Assembly Verification	Medium	BGA package may require X-ray inspection	Incoming inspection protocol

RFQQuick Inquiry Guide

To request a quotation for XC3S4000-4FG900C, simply provide:

Required quantity (any amount accepted)
Target delivery schedule (flexible timelines welcome)

We will provide availability, pricing, CoC, and authenticity documentation.

Procurement FAQs

How can we verify the current stock availability for the XC3S4000-4FG900C given its mature lifecycle status?

Due to the 'Mature/Legacy' status of the XC3S4000-4FG900C, real-time availability is not monitored and requires confirmation from the supply chain team. All procurement requests are subject to verification of existing buffer stocks or remaining manufacturer inventory at the time of inquiry.

Are there recommended plain-text alternatives or cross-reference parts for this 900-BBGA FPGA?

Identification of functional equivalents or cross-references for the XC3S4000-4FG900C requires confirmation of your specific application requirements. Any suggested alternatives must undergo technical verification to ensure compatibility with the 900-BBGA footprint and existing system logic.

What is the process for obtaining a Certificate of Conformance (CoC) for this legacy Xilinx component?

The provision of a Certificate of Conformance (CoC) for legacy components is subject to verification of the specific lot's traceability documentation. Availability of official manufacturer certification for the XC3S4000-4FG900C requires confirmation during the formal quoting process to ensure compliance with quality standards.

Same Architecture Variants

Identical logic resources with differences in speed grade, packaging, or I/O count:

XC3S4000-4FG676C | XC3S4000-4FG676I

Pin-to-pin compatibility must be verified per datasheet.

Design Scaling Consideration

For projects requiring additional logic resources within the same Spartan-3 family:

XC3S5000-5FGG900C

Resource headroom evaluation recommended before architectural migration.