Name: XC3S4000-4FG676I
Brand: AMD
SKU: XC3S4000-4FG676I
Availability: LimitedAvailability

Technical Specifications

Manufacturer	AMD
Part Number	XC3S4000-4FG676I
Series	Spartan®-3
Indicated Status	Mature/Legacy (verification required)
Package / Case	676-BGA
Temperature Range	-40°C ~ 100°C (TJ)
Logic Elements	62208
LABs / CLBs	6912
Total RAM Bits	1769472
Number of I/O	489
Number of Gates	4000000
Supply Voltage	1.14V ~ 1.26V

Application Context

The XC3S4000-4FG676I 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.

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 XC3S4000-4FG676I, simply provide:

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

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

Procurement FAQs

What is the current procurement protocol for verifying the availability of the XC3S4000-4FG676I given its mature status?

Due to the 'Mature/Legacy' status of the XC3S4000-4FG676I, current stock levels and lead times are subject to verification. Procurement requires confirmation of existing inventory from authorized channels or specialized legacy distributors before a purchase order can be finalized.

Are there recommended alternatives or cross-references for the XC3S4000-4FG676I in the 676-BGA package?

Identification of plain-text alternatives or functional cross-references requires confirmation from technical engineering teams. Any proposed substitute for the 676-BGA footprint must undergo rigorous validation to ensure electrical and timing compatibility, as drop-in replacements for legacy FPGAs are subject to verification.

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

The availability of a manufacturer or distributor Certificate of Conformance (CoC) for the XC3S4000-4FG676I requires confirmation at the time of inquiry. For legacy components, the traceability documentation and the specific CoC process are subject to verification based on the date code and the sourcing origin.

Same Architecture Variants

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

XC3S4000-4FG676C | XC3S4000-4FG900C

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

Design Scaling Consideration

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

XC3S5000-5FGG676C

Resource headroom evaluation recommended before architectural migration.