• XC3S1000-4FT256C FBGA-256
XC3S1000-4FT256C FBGA-256


Programmable gate array with 1.2 volt operation

Quantity Unit Price(USD) Ext. Price
1 $404.587 $404.59
180 $161.435 $29,058.30
540 $156.039 $84,261.06
990 $153.373 $151,839.27


*The price is for reference only.
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Overview of XC3S1000-4FT256C

The XC3S1000-4FT256C is a Spartan-3 FPGA (Field-Programmable Gate Array) from Xilinx, featuring 1000 logic cells and operating at speed grade -4.


(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • VCCINT: Internal power supply voltage
  • VCCAUX: Auxiliary power supply voltage for analog functions
  • VCCINTIO: Internal I/O power supply voltage
  • GND: Ground connection
  • IO0: I/O Pin 0
  • IO1: I/O Pin 1
  • CLK: Clock input pin
  • RESET: Reset pin
  • PROGRAM: Programming pin
  • DEBUG: Debug pin for testing purposes

Circuit Diagram

Provide a circuit diagram illustrating the connections and utilization of the XC3S1000-4FT256C FPGA for better understanding.

Key Features

  • 1000 Logic Cells: Equipped with 1000 logic cells for implementing complex digital designs.
  • Speed Grade -4: Operates at speed grade -4, suitable for applications requiring high performance.
  • Advanced IO Options: Offers versatile I/O options for connecting with external components and systems.
  • On-Chip Memory: Includes on-chip memory blocks for data storage and processing.
  • Flexible Configuration: Allows for field-programmable configuration to adapt to varying application requirements.

Note: For detailed technical specifications, please refer to the XC3S1000-4FT256C datasheet.


  • Digital Signal Processing: Ideal for implementing digital signal processing algorithms in real-time.
  • Embedded Systems: Suitable for embedded system applications requiring reconfigurable hardware.
  • Communications: Used in communications systems for data processing and protocol handling.


The XC3S1000-4FT256C is a versatile FPGA that offers a large number of logic cells for implementing customizable digital circuits. It provides flexibility and scalability for various digital design applications.

Usage Guide

  • Power Supply: Connect the appropriate power supply voltages (VCCINT, VCCAUX, VCCINTIO) to the corresponding pins.
  • I/O Connections: Connect the required input/output signals to the designated I/O pins based on the design requirements.
  • Programming: Use the PROGRAM pin for downloading the configuration bitstream to the FPGA.

Frequently Asked Questions

Q: Is the XC3S1000-4FT256C compatible with common FPGA development tools?
A: Yes, the XC3S1000-4FT256C is compatible with popular FPGA development tools such as Vivado and ISE.


For similar functionalities, consider these alternatives to the XC3S1000-4FT256C:

  • XC7S1000-3CSGA324C: A newer generation Spartan-7 FPGA with similar logic capacity and enhanced features.
  • XC6SLX100-2FGG484C: A Spartan-6 FPGA offering comparable performance and different package options.



The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Category FPGA - Field Programmable Gate Array Series XC3S1000
Number of Logic Elements 17280 LE Number of I/Os 173 I/O
Supply Voltage - Min 1.2 V Supply Voltage - Max 1.2 V
Minimum Operating Temperature 0 C Maximum Operating Temperature + 85 C
Mounting Style SMD/SMT Package / Case FBGA-256
Brand Xilinx Distributed RAM 120 kbit
Embedded Block RAM - EBR 432 kbit Maximum Operating Frequency 280 MHz
Moisture Sensitive Yes Number of Gates 1000000
Operating Supply Voltage 1.2 V Product Type FPGA - Field Programmable Gate Array
Factory Pack Quantity 1 Subcategory Programmable Logic ICs
Tradename Spartan Unit Weight 0.352740 oz

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