The XC18V02VQG44I is a high-performance 2-megabit in-system programmable configuration PROM manufactured by Xilinx (now AMD). This industrial-grade memory device delivers reliable FPGA bitstream storage with exceptional performance characteristics. Engineers and designers worldwide trust the XC18V02VQG44I for mission-critical applications requiring robust configuration memory solutions.
What Is XC18V02VQG44I?
The XC18V02VQG44I belongs to the XC18V00 series of configuration PROMs designed specifically for Xilinx FPGA configuration storage. This versatile device combines 2Mbit memory capacity with industrial temperature operation, making it ideal for demanding electronic applications.
Unlike volatile memory solutions, the XC18V02VQG44I retains configuration data without power. This non-volatile characteristic ensures your FPGA loads its bitstream immediately upon power-up. The device supports multiple configuration modes, providing design flexibility for various system architectures.
XC18V02VQG44I Technical Specifications
Core Parameters Overview
| Parameter |
Specification |
| Part Number |
XC18V02VQG44I |
| Manufacturer |
Xilinx (AMD) |
| Memory Density |
2 Megabit (2Mb) |
| Package Type |
44-Pin VQFP |
| Operating Voltage |
3.3V (2.5V/3.3V Compatible) |
| Access Time |
20ns |
| Technology |
CMOS |
| Temperature Grade |
Industrial (-40°C to +85°C) |
Electrical Characteristics Table
| Characteristic |
Min |
Typical |
Max |
Unit |
| Supply Voltage (VCC) |
3.0 |
3.3 |
3.6 |
V |
| Input High Voltage (VIH) |
2.0 |
– |
VCC+0.5 |
V |
| Input Low Voltage (VIL) |
-0.5 |
– |
0.8 |
V |
| Operating Temperature |
-40 |
– |
+85 |
°C |
| Storage Temperature |
-65 |
– |
+150 |
°C |
Pin Configuration Summary
| Pin Category |
Pin Count |
Function |
| Data Output |
8 |
Serial/Parallel Data |
| Clock Input |
1 |
Configuration Clock |
| Control Pins |
6 |
CE, OE, CLK, RESET, CEO |
| Power Pins |
8 |
VCC, GND |
| Reserved/NC |
21 |
Not Connected |
| Total |
44 |
– |
Key Features of XC18V02VQG44I
In-System Programmability
The XC18V02VQG44I supports in-system programming capabilities. You can update configuration data without removing the device from your PCB. This feature significantly reduces development time and enables field upgrades.
Multi-Device Cascading Support
Engineers can cascade multiple XC18V02VQG44I devices together. The CEO (Clock Enable Output) pin drives the CE input of subsequent devices. This cascading capability enables configuration storage for larger FPGA bitstreams exceeding 2Mbit.
Configuration Mode Flexibility
The XC18V02VQG44I supports three primary configuration modes:
| Mode |
Description |
Application |
| Master Serial |
PROM controls configuration clock |
Single FPGA systems |
| Slave Serial |
External clock source |
Multi-device synchronization |
| Master SelectMAP |
Parallel 8-bit data transfer |
High-speed configuration |
Industrial Temperature Operation
With an operating range of -40°C to +85°C, the XC18V02VQG44I meets industrial temperature requirements. This extended range ensures reliable operation in harsh environmental conditions.
XC18V02VQG44I Package Information
VQFP-44 Package Details
| Dimension |
Specification |
| Package Style |
Very Thin Quad Flat Package |
| Pin Count |
44 |
| Pin Pitch |
0.8mm |
| Body Size |
10mm × 10mm |
| Height |
1.0mm (max) |
| Lead Style |
Gull Wing |
Package Marking Information
The XC18V02VQG44I uses standard Xilinx part numbering convention:
- XC18V – Product family identifier
- 02 – Density code (2 Megabit)
- VQG44 – Package designator (VQFP-44)
- I – Temperature grade (Industrial)
Compatible FPGA Families
The XC18V02VQG44I works seamlessly with multiple Xilinx FPGA families:
| FPGA Family |
Compatibility |
Notes |
| Spartan-3 |
Full |
Direct connection supported |
| Spartan-6 |
Full |
Requires level shifter for 1.2V core |
| Spartan-7 |
Full |
Master Serial mode recommended |
| Artix-7 |
Full |
Use with configuration chain |
| Kintex-7 |
Full |
Cascading may be required |
| Virtex Series |
Full |
Check bitstream size requirements |
Application Areas for XC18V02VQG44I
Industrial Automation
Industrial control systems demand reliable configuration memory. The XC18V02VQG44I delivers consistent performance across wide temperature ranges. Factory automation equipment benefits from its robust design.
Telecommunications Infrastructure
Networking equipment requires dependable FPGA configuration storage. The XC18V02VQG44I provides the reliability telecommunications systems demand. Base stations and routing equipment commonly use this device.
Automotive Electronics
Automotive applications require components meeting strict reliability standards. The industrial temperature grade XC18V02VQG44I suits many automotive electronic control unit designs.
Aerospace and Defense
Mission-critical aerospace systems need proven configuration memory solutions. The XC18V02VQG44I offers the reliability these demanding applications require.
Medical Device Manufacturing
Medical equipment designers choose the XC18V02VQG44I for its consistent performance. Diagnostic imaging and patient monitoring systems benefit from its reliability.
XC18V02VQG44I vs Alternative Parts
Family Comparison Table
| Part Number |
Density |
Package |
Temperature |
Best For |
| XC18V512VQG44I |
512Kb |
VQFP-44 |
Industrial |
Small bitstreams |
| XC18V01VQG44I |
1Mb |
VQFP-44 |
Industrial |
Medium designs |
| XC18V02VQG44I |
2Mb |
VQFP-44 |
Industrial |
Standard applications |
| XC18V04VQG44I |
4Mb |
VQFP-44 |
Industrial |
Large configurations |
Design Considerations
PCB Layout Guidelines
Proper PCB layout ensures optimal XC18V02VQG44I performance. Follow these recommendations:
- Place decoupling capacitors close to VCC pins
- Use continuous ground plane beneath the device
- Keep configuration traces short and direct
- Maintain controlled impedance for high-speed signals
Power Supply Requirements
| Parameter |
Recommendation |
| Decoupling Capacitance |
0.1µF ceramic + 10µF tantalum |
| Power Sequencing |
VCC stable before configuration |
| Current Capability |
100mA minimum supply capability |
| Ripple Tolerance |
Less than 100mV peak-to-peak |
Programming Tools and Software
The XC18V02VQG44I works with standard Xilinx development tools:
| Tool |
Purpose |
Availability |
| Vivado Design Suite |
Primary development environment |
Current |
| ISE Design Tools |
Legacy design support |
Archive |
| iMPACT |
Programming utility |
Included with ISE |
| Vivado Programmer |
Device programming |
Included with Vivado |
Quality and Compliance Standards
Environmental Compliance
| Standard |
Status |
| RoHS 2011/65/EU |
Compliant |
| REACH Regulation |
Compliant |
| Lead-Free Assembly |
Yes |
| Halogen-Free Option |
Available |
Quality Certifications
| Certification |
Description |
| ISO 9001 |
Quality management system |
| JEDEC Standards |
Industry reliability standards |
| AEC-Q100 |
Automotive qualification (select variants) |
Ordering Information
Part Number Breakdown
XC18V02VQG44I
│ │ │ │
│ │ │ └── I = Industrial Temperature
│ │ └────── VQG44 = VQFP-44 Package
│ └───────── 02 = 2 Megabit Density
└────────────── XC18V = Product Family
Available Variants
| Full Part Number |
Temperature |
Package |
Status |
| XC18V02VQG44I |
-40°C to +85°C |
VQFP-44 |
Active |
| XC18V02VQG44C |
0°C to +70°C |
VQFP-44 |
Active |
Conclusion
The XC18V02VQG44I represents an excellent choice for FPGA configuration storage applications. Its combination of 2Mbit density, industrial temperature operation, and proven reliability makes it suitable for demanding electronic designs. Whether you’re developing industrial automation systems, telecommunications equipment, or medical devices, the XC18V02VQG44I delivers the performance your application requires.
For engineers seeking a dependable configuration PROM solution, the XC18V02VQG44I offers outstanding value. Its comprehensive toolchain support and multi-mode configuration capabilities simplify system integration. Contact your authorized distributor today for pricing and availability information.
