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Home > Products > Integrated Circuits (ICs) > Memory > Configuration PROMs for FPGAs

AMD XC18V01VQG44C0100

Name: XC18V01VQG44C0100
Brand: AMD
SKU: XC18V01VQG44C0100
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: XC18V01VQG44C0100

Manufacturer:: AMD

Category:: Configuration PROMs for FPGAs

Package:: 44-TQFP

Datasheet:: XC18V01VQG44C0100.pdf

Description:: XC18V01VQG44C0100

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Product details

Overview

XC18V01VQG44C0100 from Xilinx is a 1-Mbit in-system programmable configuration PROM for Xilinx FPGA bitstream storage and loading in Master Serial or Slave SelectMAP modes. It delivers 1,048,576 bits of Flash memory, supports 20,000 program/erase cycles, operates across –40°C to +85°C industrial temperature range, and features IEEE 1149.1 JTAG boundary-scan for in-system programming and FPGA reconfiguration initiation - used in industrial control FPGAs requiring field-upgradable configuration.

For engineers reviewing the XC18V01VQG44C0100 datasheet, pinout, applications, or equivalent options, key selection criteria include serial/parallel configuration mode support, JTAG-initiated CONFIG pulse via CF pin, 5V-tolerant I/O compatibility with legacy interfaces, VQ44 package footprint, and cascading capability via CEO/CE chaining for multi-FPGA systems.

Technical Context

The XC18V01VQG44C0100 implements a dual-mode Flash-based configuration memory architecture with separate serial (D0-only) and parallel (D0–D7) data paths controlled by internal mode register settings. Its JTAG TAP controller executes CONFIG instruction to pulse CF low for FPGA PROGRAM_B assertion, enabling zero-software reconfiguration without power cycle.

It integrates boundary-scan logic compliant with IEEE 1149.1, including 8-bit instruction register with ISP Status and Security flags, 32-bit IDCODE (05024093h), and USERCODE register. The device uses advanced CMOS Flash process with 3.3V VCCINT core supply and selectable 3.3V/2.5V VCCO output drivers, supporting 5V-tolerant inputs.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory capacity	1,048,576 bits (1 Mbit) - stores full configuration bitstream for XCV100, XC2S100, or XC3S200 FPGAs.
Configuration modes	Serial (up to 33 MHz) and Parallel (up to 264 Mb/s at 33 MHz) - selectable via JTAG control register; serial is default.
Endurance	20,000 program/erase cycles - guaranteed over full industrial voltage and temperature range (–40°C to +85°C).
I/O voltage tolerance	5V-tolerant inputs - accepts 5V, 3.3V, or 2.5V signals on D0–D7, CLK, CE, OE/RESET, TCK, TMS, TDI, TDO, CF, CEO.
Output drive capability	3.3V or 2.5V output - configurable VCCO supply determines output logic levels for interface matching with FPGA DIN/D[0:7].
JTAG compliance	Fully IEEE 1149.1-compliant - supports BYPASS, EXTEST, SAMPLE/PRELOAD, IDCODE, CONFIG, and USERCODE instructions.
Data retention	Minimum 20 years - guaranteed under specified operating conditions and endurance limit.

Pinout & Package

VQ44 (VQG44) 44-pin Very Thin Quad Flat Package (VQFP), lead-free, with 0.8 mm pitch and exposed thermal pad (not electrically connected). Pin 1 marked by corner notch; top-side view orientation per DS026 Figure 13.

Pin/Terminal	Circuit Role	Design Meaning
D0	Serial data output	Drives FPGA DIN pin in Master Serial mode; active only when CE and OE/RESET are asserted.
D1–D7	Parallel data outputs	Drive FPGA D[0:7] in Slave Parallel/SelectMAP mode; high-Z in serial mode - may be left unconnected.
CLK	Configuration clock input	Driven by FPGA CCLK in Master modes; drives internal address counter on rising edge when CE=Low and OE/RESET=High.
OE/RESET	Bidirectional open-drain reset	Held Low during power-on reset; connects to FPGA INIT_B to synchronize PROM address counter reset before configuration.
CE	Chip enable input	High = standby (address counter reset, DATA pins high-Z); cascaded via CEO of upstream PROM.
CEO	Cascade enable output	Open-drain output pulsed Low to enable next PROM in chain after terminal count reached; requires external pull-up.
CF	Configuration trigger output	Open-drain output pulsed Low (300–500 ns) by JTAG CONFIG instruction to assert FPGA PROGRAM_B and initiate reconfiguration.
TCK/TMS/TDI/TDO	JTAG Test Access Port	Standard 4-wire boundary-scan interface for ISP programming, verification, security setting, and IDCODE readout.
VCCINT	Core logic supply	3.3V ±5% supply for internal Flash and control logic; pins 17, 35, 38 are connected (per DS026 Note 3).
VCCO	I/O buffer supply	3.3V or 2.5V supply setting output voltage level; pins 8, 16, 26, 36 connect to same rail.
GND	Ground reference	Four dedicated ground pins (6, 18, 28, 41) ensure stable return path for serial/parallel data and JTAG signals.

Key Features

Feature	Design Value
In-system programmability via JTAG	Enables field firmware updates without socketing or device removal - supports daisy-chained programming of multiple PROMs using standard 4-pin interface.
JTAG CONFIG instruction	Generates precise 300–500 ns CF pulse to reset and reconfigure Xilinx FPGAs without power cycling or external hardware.
Dual configuration interface	Single device supports both serial (D0) and parallel (D0–D7) FPGA configuration - eliminates need for separate PROM variants in mixed-interface designs.
5V-tolerant I/O	Allows direct connection to 5V legacy microcontrollers, CPLDs, or level-shifting circuits without external translators - reduces BOM count and board space.
Read security bit	User-settable JTAG lock prevents unauthorized readback of configuration bitstream - erase is only method to reset the bit, ensuring IP protection.
Cascadable architecture	CEO output enables seamless chaining of multiple XC18V00 devices to store larger bitstreams or configure multiple FPGAs from single JTAG chain.

Applications

Industrial PLC Configuration Storage	Aerospace FPGA Reconfiguration System
Use Scenario: Storing and loading FPGA configuration bitstreams in programmable logic controllers deployed in factory automation environments with frequent firmware updates. IC Role / Device Role / Timing Role: Non-volatile configuration memory providing deterministic startup timing and JTAG-triggered reconfiguration without system reset. Use Value: Enables field-upgradable logic without hardware modification; 20,000-cycle endurance supports >10 years of scheduled updates at quarterly intervals.	Use Scenario: Configuring radiation-tolerant Xilinx Virtex-E FPGAs in satellite subsystems where in-orbit reprogramming is required after launch. IC Role / Device Role / Timing Role: JTAG-controlled PROM initiating FPGA reconfiguration via CF pulse synchronized to spacecraft command schedule. Use Value: Eliminates need for dedicated reconfiguration controllers; IEEE 1149.1 compliance ensures testability and verification within avionics ATE infrastructure.
Medical Imaging FPGA Boot Loader	Test Equipment Bitstream Manager
Use Scenario: Loading diagnostic FPGA configurations in MRI and CT scanner front-end modules requiring certified, repeatable boot sequences. IC Role / Device Role / Timing Role: Master Serial PROM supplying bitstream to XCV1000E FPGA on power-up, with OE/RESET tied to FPGA INIT_B for synchronized reset. Use Value: Guarantees bitstream integrity via 20-year data retention and industrial-grade temperature operation; read security prevents IP leakage during service.	Use Scenario: Managing multiple FPGA configurations in automated test equipment (ATE) platforms that switch between DUT-specific logic images. IC Role / Device Role / Timing Role: Cascaded XC18V01VQG44C0100 devices storing distinct bitstreams, selected via FPGA DONE-driven CE sequencing. Use Value: Reduces test head changeover time by enabling software-selectable FPGA personalities; parallel mode supports <100 ms image load times.

Industrial PLC Configuration Storage

Aerospace FPGA Reconfiguration System

Use Scenario: Storing and loading FPGA configuration bitstreams in programmable logic controllers deployed in factory automation environments with frequent firmware updates.

IC Role / Device Role / Timing Role: Non-volatile configuration memory providing deterministic startup timing and JTAG-triggered reconfiguration without system reset.

Use Value: Enables field-upgradable logic without hardware modification; 20,000-cycle endurance supports >10 years of scheduled updates at quarterly intervals.

Use Scenario: Configuring radiation-tolerant Xilinx Virtex-E FPGAs in satellite subsystems where in-orbit reprogramming is required after launch.

IC Role / Device Role / Timing Role: JTAG-controlled PROM initiating FPGA reconfiguration via CF pulse synchronized to spacecraft command schedule.

Use Value: Eliminates need for dedicated reconfiguration controllers; IEEE 1149.1 compliance ensures testability and verification within avionics ATE infrastructure.

Medical Imaging FPGA Boot Loader

Test Equipment Bitstream Manager

Use Scenario: Loading diagnostic FPGA configurations in MRI and CT scanner front-end modules requiring certified, repeatable boot sequences.

IC Role / Device Role / Timing Role: Master Serial PROM supplying bitstream to XCV1000E FPGA on power-up, with OE/RESET tied to FPGA INIT_B for synchronized reset.

Use Value: Guarantees bitstream integrity via 20-year data retention and industrial-grade temperature operation; read security prevents IP leakage during service.

Use Scenario: Managing multiple FPGA configurations in automated test equipment (ATE) platforms that switch between DUT-specific logic images.

IC Role / Device Role / Timing Role: Cascaded XC18V01VQG44C0100 devices storing distinct bitstreams, selected via FPGA DONE-driven CE sequencing.

Use Value: Reduces test head changeover time by enabling software-selectable FPGA personalities; parallel mode supports <100 ms image load times.

Equivalent & Alternatives

The following parts are listed as comparable options for similar configuration PROM applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
XC18V02VQG44C	2-Mbit capacity (2,097,152 bits); identical VQ44 package, pinout, and electrical specs.	Suitable for larger FPGAs (e.g., XC2V250, XC3S400) requiring >1 Mbit bitstream storage.	Select when bitstream exceeds 1 Mbit; no PCB changes needed due to pin-to-pin compatibility.
AT17LV010A-25JQ	1-Mbit Atmel Flash PROM; 3.3V-only I/O (not 5V-tolerant); no JTAG CONFIG instruction or CF pin.	Lacks FPGA reconfiguration trigger - requires external logic or FPGA GPIO to assert PROGRAM_B.	Choose for cost-sensitive, non-reconfigurable applications where JTAG-initiated reset is unnecessary and 5V tolerance is not required.

Compared with XC18V02VQG44C, the XC18V01VQG44C0100 offers optimal density for mid-range Spartan-II/III and Virtex-E FPGAs while minimizing cost and power; versus AT17LV010A-25JQ, it provides integrated JTAG-triggered reconfiguration and 5V-tolerant interfacing critical for industrial and legacy system integration.

Availability

XC18V01VQG44C0100 is available at Aetrix Electronics and suitable for industrial control, medical imaging, aerospace reconfiguration, and automated test equipment requiring stable component supply and long-term obsolescence management.

Supply support for XC18V01VQG44C0100 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Xilinx, now part of AMD, is a pioneer in programmable logic and FPGA technology, delivering high-performance adaptive computing solutions since 1984.

The XC18V00 series was designed specifically to provide reliable, in-system programmable Flash memory for configuring Xilinx FPGAs - addressing needs for field-upgradability, JTAG testability, and industrial temperature operation in embedded systems.

FAQ

What is the memory capacity and organization of the XC18V01VQG44C0100?

The XC18V01VQG44C0100 contains 1,048,576 bits (1 Mbit) of Flash memory organized as 131,072 words × 8 bits in parallel mode or sequential serial stream. This capacity supports full configuration of XCV100, XC2S100, XC3S200, and similar Xilinx FPGAs. The memory is non-volatile and retains data for minimum 20 years under specified conditions.

Does the XC18V01VQG44C0100 support JTAG-initiated FPGA reconfiguration?

Yes, the XC18V01VQG44C0100 supports JTAG-initiated FPGA reconfiguration via its dedicated CF (CONFIG Function) pin. Executing the JTAG CONFIG instruction pulses CF low for 300–500 ns, directly asserting the FPGA's PROGRAM_B pin to trigger a full reconfiguration cycle without power cycling - a feature confirmed in DS026 Section "Initiating FPGA Configuration".

What package type and pin count does the XC18V01VQG44C0100 use?

The XC18V01VQG44C0100 uses the VQG44 (VQ44) package: a 44-pin Very Thin Quad Flat Package with 0.8 mm pitch and lead-free finish. Pin numbering follows standard VQFP top-view orientation with corner notch marking pin 1, as shown in DS026 Figure 13. This matches the PC44 and PLCC-44 footprints electrically but differs mechanically.

Can the XC18V01VQG44C0100 be cascaded with other PROMs for larger bitstreams?

Yes, the XC18V01VQG44C0100 supports cascading via its CEO (Chip Enable Output) pin, which drives the CE input of the next PROM in the chain. When the internal address counter reaches terminal count, CEO goes low to enable downstream device. DS026 explicitly confirms compatibility across XC18V00 family members and with XC17V00 one-time PROMs.

Is the XC18V01VQG44C0100 still in production or subject to obsolescence?

The XC18V01VQG44C0100 is marked "PRODUCT OBSOLETE / UNDER OBSOLESCENCE" in the official DS026 (v6.0) datasheet dated August 5, 2015. While no longer manufactured by AMD/Xilinx, Aetrix Electronics maintains legacy supply with traceable, tested inventory and provides lifecycle coordination support for ongoing production programs.

XC18V01VQG44C0100 Specifications

Product attributes: Attribute value

Manufacturer:: AMD

Series:: -

Package/Case:: 44-TQFP

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Programmable:: Not Verified

Programmable Type:: In System Programmable

Memory Size:: 1Mb

Voltage - Supply:: 3V ~ 3.6V

Operating Temperature:: 0°C ~ 70°C

Mounting Type:: Surface Mount

Supplier Device Package:: 44-VQFP (10x10)

XC18V01VQG44C0100 FAQ

1.How can I place an order for XC18V01VQG44C0100 through Aetrix?

Please submit a Request for Quotation (RFQ) for XC18V01VQG44C0100 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for XC18V01VQG44C0100 reliable?

The price and inventory of XC18V01VQG44C0100 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XC18V01VQG44C0100 is usually 5 days.

3.What payment methods are accepted for XC18V01VQG44C0100?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XC18V01VQG44C0100 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for XC18V01VQG44C0100?

XC18V01VQG44C0100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your XC18V01VQG44C0100 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for XC18V01VQG44C0100?

For technical support, including XC18V01VQG44C0100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XC18V01VQG44C0100 requirements.

6.How does Aetrix verify that XC18V01VQG44C0100 is sourced from the original manufacturer or authorized distributors?

All XC18V01VQG44C0100 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that XC18V01VQG44C0100 meets industry standards.

7.What is the process for return or replacement of XC18V01VQG44C0100?

All XC18V01VQG44C0100 units undergo pre-shipment inspection (PSI). If there is an issue with XC18V01VQG44C0100, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The XC18V01VQG44C0100 part is unused and in its original packaging.

Return procedure for XC18V01VQG44C0100:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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