Product Specifications
The XC2S400E-6FT256C features robust technical specifications that meet demanding application requirements:
Core Architecture:
- Logic Cells: 400,000 system gates
- Configurable Logic Blocks (CLBs): 1,176 CLBs
- Total Equivalent Logic Cells: 11,648
- Distributed RAM: 56 Kbits
- Block RAM: 80 Kbits total (20 blocks ร 4 Kbits each)
I/O and Connectivity:
- Package Type: FT256 (Fine-pitch Ball Grid Array)
- Total I/O Pins: 176 user I/O pins
- Speed Grade: -6 (high-performance grade)
- Operating Voltage: 2.5V core, 3.3V I/O
- Maximum Operating Frequency: Up to 200 MHz
Physical Characteristics:
- Package Size: 17mm ร 17mm
- Pin Count: 256 pins
- Operating Temperature Range: 0ยฐC to +85ยฐC (commercial grade)
- Storage Temperature: -65ยฐC to +150ยฐC
Pricing Information
The XC2S400E-6FT256C pricing varies based on quantity and supplier. For current pricing and availability:
- Sample Quantities (1-9 units): Contact authorized distributors
- Production Quantities (100+ units): Volume pricing available
- Lead Time: Typically 2-12 weeks depending on stock levels
Note: Prices fluctuate based on market conditions. Contact authorized Xilinx distributors for real-time pricing and stock availability.
Documents & Media
Essential documentation and resources for the XC2S400E-6FT256C include:
Technical Documentation:
- Spartan-II FPGA Family Data Sheet (DS001)
- XC2S400E-6FT256C Product Brief
- Spartan-II FPGA User Guide
- Package and Pinout Specifications
- DC and AC Switching Characteristics
Design Resources:
- Reference designs and application notes
- Power consumption analysis tools
- Timing analysis guidelines
- PCB layout recommendations
- Constraint files and templates
Software Tools:
- Xilinx ISE Design Suite compatibility
- WebPACK software support
- Simulation and synthesis tool integration
Related Resources
Development Tools:
- Spartan-II Evaluation Boards
- Programming cables and adapters
- Configuration memory devices
- Power supply reference designs
Complementary Products:
- XC2S300E and XC2S600E variants
- Compatible configuration PROMs
- Level shifters and interface devices
- Clocking and timing components
Technical Support:
- Xilinx Community Forums
- Application engineering support
- Design consultation services
- Training and certification programs
Environmental & Export Classifications
The XC2S400E-6FT256C meets stringent environmental and regulatory standards:
Environmental Compliance:
- RoHS Compliant (Lead-free manufacturing)
- WEEE Directive compliant
- Commercial temperature grade (0ยฐC to +85ยฐC)
- Moisture Sensitivity Level: MSL-3
- ESD Rating: Class 1C (>1500V HBM, >150V MM)
Export Control Classification:
- ECCN (Export Control Classification Number): 3A001.A.7.A
- HTS (Harmonized Tariff Schedule): 8542.31.0001
- Country of Origin: Various (check specific lot)
- Export License: May be required for certain destinations
Quality Standards:
- ISO 9001:2015 certified manufacturing
- Automotive grade variants available (contact for specifications)
- MIL-STD-883 testing available upon request
- Long-term supply commitment through Xilinx
Package Marking:
- Device part number: XC2S400E-6FT256C
- Speed grade and package code clearly marked
- Date code and lot traceability information
- Lead-free indicator marking
The XC2S400E-6FT256C represents an excellent balance of performance, features, and cost-effectiveness for FPGA-based designs requiring moderate complexity and high reliability. Its proven Spartan-II architecture, combined with comprehensive development tool support, makes it suitable for applications ranging from industrial control systems to telecommunications infrastructure.

