Name: XC3S400-4FG320C
Brand: AMD
SKU: XC3S400-4FG320C
Availability: LimitedAvailability

Application Context

The XC3S400-4FG320C 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	XC3S400-4FG320C
Series	Spartan®-3
Indicated Status	Mature/Legacy (verification required)
Package / Case	320-BGA
Temperature Range	0°C ~ 85°C (TJ)
Logic Elements	8064
LABs / CLBs	896
Total RAM Bits	294912
Number of I/O	221
Number of Gates	400000
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 XC3S400-4FG320C, 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 XC3S400-4FG320C given its legacy status?

Due to the 'Mature/Legacy' lifecycle status of the XC3S400-4FG320C, real-time stock levels and lead times are subject to verification. Procurement requires confirmation of current inventory from authorized channels or specialized legacy distributors to ensure the 320-BGA package is physically accessible for new orders.

Are there recommended alternatives or cross-references for this specific FPGA if the original part is unavailable?

Identification of functional alternatives or pin-compatible cross-references for the XC3S400-4FG320C requires confirmation from our technical engineering team. Any proposed substitute must undergo rigorous verification to ensure it meets the specific timing and electrical parameters of the original Spartan-3 architecture.

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

The availability of a Certificate of Conformance (CoC) for the XC3S400-4FG320C is subject to verification based on the specific date code and lot traceability of the remaining stock. Formal documentation confirming authenticity and compliance with original manufacturer specifications requires confirmation at the time of formal quotation.

Same Architecture Variants

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

XC3S400-4FG320I | XC3S400-4FG456C

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

Design Scaling Consideration

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

XC3S200-5FTG256C

Resource headroom evaluation recommended before architectural migration.