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XC3S1000-5FTG256C

Updated: 2026-08-05

Overview

The XC3S1000-5FTG256C is a member of Xilinx's Spartan-3 family, a series of cost-optimized FPGAs designed for high-volume applications. With 1 million system gates, this device provides ample logic capacity for complex digital designs. Its 256-pin Fine-Pitch Ball Grid Array (FTG256) packaging ensures compact integration, while the -5 speed grade indicates robust performance for industrial environments. FPGAs like the XC3S1000-5FTG256C are widely used in prototyping and production due to their reprogrammable nature. They allow engineers to implement custom logic without the need for ASIC development, reducing time-to-market and costs for mid-range applications.

Structure and Working Principle

The XC3S1000-5FTG256C consists of configurable logic blocks (CLBs), input/output blocks (IOBs), and programmable interconnects. CLBs contain look-up tables (LUTs) and flip-flops, which can be configured to perform various logic functions. IOBs manage external communication, supporting multiple I/O standards. Upon power-up, the FPGA loads its configuration from an external memory device. This configuration defines the behavior of the logic blocks and interconnects, effectively creating a custom digital circuit. The -5 speed grade ensures reliable operation at higher clock frequencies, making it suitable for timing-critical applications.

Key Features

The XC3S1000-5FTG256C offers several notable features, including 1 million system gates, 16,640 logic cells, and 432 Kbits of block RAM. Its 256-pin FTG256 package provides a balance between pin count and board space efficiency. The device supports various I/O standards, such as LVCMOS, LVTTL, and HSTL. Power efficiency is another highlight, with advanced power management features reducing static and dynamic power consumption. The -5 speed grade ensures performance consistency across industrial temperature ranges (-40°C to +100°C), making it suitable for harsh environments.

Application Areas

This FPGA is commonly used in industrial automation for control systems, motor drives, and sensor interfaces. Its reprogrammable nature allows for field updates and customization. In telecommunications, it serves in baseband processing, signal conditioning, and protocol bridging. Embedded systems benefit from the XC3S1000-5FTG256C's flexibility, enabling custom peripherals and accelerators. Other applications include medical devices, automotive electronics, and consumer electronics where mid-range logic density and reliability are required.

Maintenance and Precautions

Proper handling is essential to avoid electrostatic discharge (ESD) damage. Use grounded workstations and anti-static packaging during installation and maintenance. Ensure adequate cooling, as excessive heat can degrade performance and lifespan. When designing with this FPGA, follow Xilinx's guidelines for power supply decoupling and signal integrity. Regularly update firmware to address potential bugs or security vulnerabilities. For long-term storage, keep the device in a dry, anti-static environment to prevent moisture absorption and oxidation.

B2B Procurement Guide

When procuring the XC3S1000-5FTG256C, verify the supplier's authenticity to avoid counterfeit parts. Xilinx-authorised distributors are recommended for guaranteed quality. Lead times can vary, so plan orders in advance, especially for large quantities. Consider purchasing development kits (e.g., Spartan-3 starter kits) for prototyping. Bulk orders may qualify for volume discounts, but confirm MOQs (Minimum Order Quantities) with suppliers. Check for obsolescence status, as older FPGAs may have limited stock or upcoming end-of-life notices.

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