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Memory - Configuration Proms for FPGA's

PROM Parallel/Serial 4M-bit 3.3V 44-Pin VQFP

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XC18V04VQ44C FPGAs Overview

Xilinx introduces the XC18V00 series of in-system programmable configuration PROMs (Figure 1). Devices in this 3.3V family include a 4-megabit, a 2-megabit, a 1-megabit, and a 512-kilobit PROM that provide an easy-touse, cost-effective method for reprogramming and storing Xilinx FPGA configuration bitstreams.

When the FPGA is in Master Serial mode, it generates a configuration clock that drives the PROM. A short access time after CE and OE are enabled, data is available on the PROM DATA (D0) pin that is connected to the FPGA DIN pin. New data is available a short access time after each rising clock edge. The FPGA generates the appropriate number of clock pulses to complete the configuration. When the FPGA is in Slave Serial mode, the PROM and the FPGA are clocked by an external clock.

When the FPGA is in Master SelectMAP mode, the FPGA generates a configuration clock that drives the PROM. When the FPGA is in Slave Parallel or Slave SelectMAP mode, an external oscillator generates the configuration clock that drives the PROM and the FPGA. After CE and OE are enabled, data is available on the PROM’s DATA (D0-D7) pins. New data is available a short access time after each rising clock edge. The data is clocked into the FPGA on the following rising edge of the CCLK. A free-running oscillator can be used in the Slave Parallel or Slave SelecMAP modes.

Multiple devices can be cascaded by using the CEO output to drive the CE input of the following device. The clock inputs and the DATA outputs of all PROMs in this chain are interconnected. All devices are compatible and can be cascaded with other members of the family or with the XC17V00 one-time programmable serial PROM family.

The Xilinx Memory - Configuration Proms for FPGA's series XC18V04VQ44C is In-System Programmable Configuration PROMs, View Substitutes & Alternatives along with datasheets, stock, pricing from Authorized Distributors at, and you can also search for other FPGAs products.


  • In-System Programmable 3.3V PROMs for Configuration of Xilinx FPGAs
    • Endurance of 20,000 Program/Erase Cycles
    • Program/Erase Over Full Industrial Voltage and Temperature Range (–40°C to +85°C)
  • IEEE Std 1149.1 Boundary-Scan (JTAG) Support
  • JTAG Command Initiation of Standard FPGA Configuration
  • Simple Interface to the FPGA
  • Cascadable for Storing Longer or Multiple Bitstreams
  • Low-Power Advanced CMOS FLASH Process
  • Dual Configuration Modes
    • Serial Slow/Fast Configuration (up to 33 MHz)
    • Parallel (up to 264 Mb/s at 33 MHz)
  • 5V-Tolerant I/O Pins Accept 5V, 3.3V and 2.5V Signals
  • 3.3V or 2.5V Output Capability
  • Design Support Using the Xilinx ISE™ Foundation™ Software Packages
  • Available in PC20, SO20, PC44, and VQ44 Packages
  • Lead-Free (Pb-Free) Packaging


  • Q: Does the price of XC18V04VQ44C devices fluctuate frequently?
  • The FPGAkey search engine monitors the XC18V04VQ44C inventory quantity and price of global electronic component suppliers in real time, and regularly records historical price data. You can view the historical price trends of electronic components to provide a basis for your purchasing decisions.
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  • No, only submit the quantity, email address and other contact information required for the inquiry of XC18V04VQ44C, but you need to sign up for the post comments and resource downloads.
  • Q: How can I obtain software development tools related to the Xilinx FPGA platform?
  • In FPGA/CPLD design tools, Xilinx's Vivado Design Suite is easy to use, it is very user-friendly in synthesis and implementation, and it is easier to use than ISE design tools; The specific choice depends on personal habits and functional requirements to specifically select a more suitable match. You can search and download through the FPGA resource channel.
  • Q: Where can I purchase Xilinx XC18V04 Development Boards, Evaluation Boards, or Memory - Configuration Proms for FPGAs Starter Kit? also provide technical information?
  • FPGAkey does not provide development board purchase services for the time being, but customers often consult about ZedBoard, Basys 3 board, TinyFPGA BX, Nexys4-DDR, Terasic DE10-Nano, Digilent Arty S7, etc. If you need relevant technical information, you can submit feedback information, our technicians will contact you soon.
  • Q: How to obtain XC18V04VQ44C technical support documents?
  • Enter the "XC18V04VQ44C" keyword in the search box of the website, or find these through the Download Channel or FPGA Forum .
  • Q: What should I do if I did not receive the technical support for XC18V04VQ44C in time?
  • Depending on the time difference between your location and our location, it may take several hours for us to reply, please be patient, our FPGA technical engineer will help you with the XC18V04VQ44C pinout information, replacement, datasheet in pdf, programming tools, starter kit, etc.

Application Field

  • AI

    Artificial Intelligence

  • 5G Technology

    5G Technology

  • Cloud Computing

    Cloud Computing

  • Consumer Electronics

    Consumer Electronics

  • Wireless

    Wireless Technology

  • Industrial Control

    Industrial Control

  • Internet of Things

    Internet of Things

  • Medical Equipment

    Medical Equipment

Technical Attributes

  • Supply Voltage (DC)

    3.30 V, 3.60 V (max)

  • Memory Size

    500000 B

  • Product Lifecycle Status


  • Packaging


  • Mounting Style

    Surface Mount

  • Case/Package


  • RoHS


  • Lead-Free Status

    Contains Lead

  • ECCN Code


Technical Documents

  • XC18V04 Technical Support PDF Datasheet Overview Download>>

Circuit Diagram


XC18V04VQ44C PDF Preview

XC18V04VQ44C Tags

  • Xilinx XC18V04
  • XC18V04 development board
  • Memory - Configuration Proms for FPGA's evaluation kit
  • Xilinx Memory - Configuration Proms for FPGA's development board
  • Memory - Configuration Proms for FPGA's starter kit
  • Memory - Configuration Proms for FPGA's XC18V04
  • XC18V04 reference design
  • XC18V04 evaluation board
  • XC18V04VQ44C Datasheet PDF

Other Authorized Distributors (Fpgakey will provide Competitive price from all franchised resource.)

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  • digikey
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    100+ $65.6683

  • mouser
  • XC18V04VQ44C
  • Xilinx
  • FPGA - Configuration Memory 4MB 3.3 VOLT ISP CONFIGURATION PROM
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