The XC3S400A-4FG320I is a powerful Field-Programmable Gate Array (FPGA) from Xilinx’s renowned Spartan-3A series, designed to deliver exceptional performance for cost-sensitive applications. This versatile programmable logic device combines advanced features with industrial-grade reliability, making it an ideal choice for embedded systems, digital signal processing, and communication applications.
Product Specifications
The XC3S400A-4FG320I offers impressive technical capabilities in a compact package:
Logic Resources:
- 400,000 system gates with enhanced architecture
- 8,064 logic cells for complex digital designs
- 360 CLB (Configurable Logic Block) slices
- 20 dedicated multipliers for DSP applications
Memory Configuration:
- 360 Kbits of distributed RAM
- 288 Kbits of block RAM
- Dual-port memory capabilities
- Flexible memory organization options
I/O and Package Details:
- 264 user I/O pins in FG320 package
- FBGA (Fine-pitch Ball Grid Array) 320-pin package
- Industrial temperature range (-40ยฐC to +100ยฐC)
- Speed grade -4 for high-performance applications
Clock Management:
- Multiple clock domains support
- Digital Clock Manager (DCM) for precise timing
- Phase-locked loop functionality
- Low-jitter clock distribution
Pricing Information
The XC3S400A-4FG320I pricing varies based on quantity and supplier. Contact authorized Xilinx distributors for current pricing information, volume discounts, and availability. This FPGA typically falls within the mid-range pricing category of the Spartan-3A family, offering excellent value for its feature set.
Documents & Media
Technical Documentation:
- XC3S400A-4FG320I datasheet with complete electrical specifications
- Spartan-3A FPGA User Guide for implementation details
- Package and pinout diagrams for PCB design
- DC and switching characteristics documentation
Development Resources:
- Xilinx ISE Design Suite compatibility information
- Reference designs and application notes
- Power estimation guidelines
- Thermal management recommendations
Configuration Files:
- BSDL (Boundary Scan Description Language) files
- IBIS models for signal integrity analysis
- Footprint libraries for major CAD tools
Related Resources
Development Tools:
- Xilinx Vivado Design Suite (legacy ISE support)
- ModelSim simulation software compatibility
- ChipScope Pro for real-time debugging
- Third-party synthesis tool support
Evaluation Boards:
- Spartan-3A starter kits featuring the XC3S400A-4FG320I
- Custom evaluation platforms from development partners
- University program boards for educational applications
Application Areas:
- Industrial automation and control systems
- Medical device interfaces
- Automotive electronics
- Consumer electronics prototyping
- Communication infrastructure equipment
Companion Devices:
- Configuration memory devices (SPI Flash, PROM)
- Power management ICs optimized for Spartan-3A
- High-speed transceivers and interface components
Environmental & Export Classifications
Environmental Compliance:
- RoHS (Restriction of Hazardous Substances) compliant
- REACH regulation compliance for European markets
- Pb-free (lead-free) construction
- Halogen-free package options available
Operating Conditions:
- Industrial temperature range: -40ยฐC to +100ยฐC junction temperature
- Commercial grade variants available
- Extended temperature testing available upon request
- Humidity resistance per JEDEC standards
Export Classification:
- ECCN (Export Control Classification Number): 3A001.a.7
- Subject to U.S. Export Administration Regulations (EAR)
- Requires export license for certain destinations
- Consult current export regulations before international shipment
Quality Standards:
- ISO 9001 certified manufacturing
- Automotive qualification available (AEC-Q100)
- Military and aerospace screening options
- Statistical quality control documentation
The XC3S400A-4FG320I represents an excellent balance of performance, features, and cost-effectiveness in the FPGA market. Its robust architecture and comprehensive development ecosystem make it suitable for both prototyping and production applications across diverse industries. Whether you’re developing next-generation embedded systems or upgrading existing designs, this Spartan-3A FPGA provides the flexibility and reliability needed for successful project implementation.
