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XC2S50EFT256

Updated: 2026-07-29

Overview

The XC2S50EFT256 is a member of Xilinx’s Spartan-II family, a series of FPGAs known for their balance of performance, power efficiency, and cost. This model is particularly suited for applications requiring moderate logic density and low power consumption. Its 256-pin Fine-Pitch Ball Grid Array (FPBGA) packaging makes it compact yet versatile for various embedded system designs. The device operates at a 1.8V core voltage, reducing power dissipation while maintaining high-speed performance. With 50,000 system gates, it provides ample resources for implementing complex digital circuits. Its reprogrammable nature allows for iterative development and field updates, making it a popular choice in industries like telecommunications and automotive electronics.

Structure and Working Principle

The XC2S50EFT256 consists of configurable logic blocks (CLBs), input/output blocks (IOBs), and programmable interconnects. The CLBs contain look-up tables (LUTs) and flip-flops, enabling the implementation of custom logic functions. The IOBs support various signaling standards, including LVCMOS and LVTTL, ensuring compatibility with diverse peripherals. The FPGA’s functionality is defined by a configuration bitstream, which is loaded into the device upon power-up. This bitstream can be stored in an external non-volatile memory or generated dynamically. The reprogrammable nature of the FPGA allows for flexibility in design changes and updates without hardware modifications.

Key Features

The XC2S50EFT256 offers several standout features, including a 1.8V core voltage for reduced power consumption and a 256-pin FPBGA package for compact designs. Its 50,000 system gates provide sufficient logic density for mid-range applications, while its support for multiple I/O standards ensures broad compatibility. Additionally, the device includes dedicated block RAM for data storage and DSP slices for arithmetic operations, enhancing its utility in signal processing tasks. The FPGA’s reprogrammability allows for rapid prototyping and iterative development, reducing time-to-market for new products.

Application Areas

The XC2S50EFT256 is widely used in telecommunications for protocol handling and signal processing. Its low power consumption and high performance make it ideal for automotive applications, such as engine control units and infotainment systems. In industrial automation, the FPGA is employed for machine control and data acquisition. Its flexibility also makes it suitable for consumer electronics, such as set-top boxes and gaming consoles, where custom logic and fast time-to-market are critical.

Maintenance and Precautions

To ensure longevity and reliable operation, the XC2S50EFT256 should be handled with care to avoid electrostatic discharge (ESD). Proper grounding and the use of anti-static mats and wrist straps are recommended during installation and handling. The device should be operated within its specified voltage and temperature ranges. Overvoltage or excessive heat can damage the FPGA. Regular firmware updates and configuration checks can help maintain optimal performance and address any potential issues early.

B2B Procurement Guide

When procuring the XC2S50EFT256, verify the supplier’s reliability and track record. Authorized distributors or direct purchases from Xilinx are recommended to avoid counterfeit products. Consider the device’s long-term availability and lifecycle status, as older FPGAs may face obsolescence. Bulk purchases may offer cost savings, but ensure compatibility with your application before committing to large quantities. Evaluate the need for additional support, such as development tools or technical documentation, which can streamline integration and reduce development time.