Complete Guide to AMD Xilinx XC18V01PC20I Configuration Memory
The XC18V01PC20I is a high-performance, in-system programmable (ISP) configuration PROM designed specifically for <link url=”https://pcbsync.com/xilinx-fpga/”>Xilinx FPGA</link> devices. Manufactured by AMD (formerly Xilinx), this 1-Megabit configuration memory solution delivers reliable, non-volatile storage for FPGA bitstreams in industrial-grade applications.
XC18V01PC20I Technical Specifications
Key Product Parameters
| Specification |
Details |
| Part Number |
XC18V01PC20I |
| Manufacturer |
AMD Xilinx |
| Memory Type |
Configuration PROM |
| Memory Density |
1 Mbit (131,072 x 8-bit) |
| Package Type |
20-Pin PLCC (Plastic Leaded Chip Carrier) |
| Package Dimensions |
9mm x 9mm |
| Operating Voltage |
3.3V (±5%) |
| Temperature Range |
-40°C to +85°C (Industrial) |
| Programming Interface |
Parallel/Serial ISP |
| Access Time |
20ns (maximum) |
| Operating Modes |
Master SelectMAP, Slave Parallel, Slave SelectMAP |
XC18V01PC20I Features and Benefits
Advanced Configuration Capabilities
The XC18V01PC20I configuration PROM offers exceptional versatility for FPGA system designers:
In-System Programmability: Enables field updates without device removal, reducing maintenance costs and improving system flexibility. The ISP feature allows designers to reprogram configuration data through standard JTAG interfaces, making prototyping and production updates seamless.
Multiple Interface Options: Supports parallel and serial programming modes, providing flexibility for different system architectures and bandwidth requirements. This compatibility ensures integration with various FPGA families and configuration schemes.
Cascade Capability: Multiple XC18V01PC20I devices can be daisy-chained to support larger configuration bitstreams, enabling scalable memory solutions for complex FPGA designs requiring more than 1 Mbit of configuration storage.
Technical Performance Characteristics
Electrical Specifications
| Parameter |
Min |
Typ |
Max |
Unit |
| Supply Voltage (VCC) |
3.0 |
3.3 |
3.6 |
V |
| Supply Current (Active) |
– |
30 |
50 |
mA |
| Supply Current (Standby) |
– |
100 |
200 |
μA |
| Input High Voltage (VIH) |
2.0 |
– |
VCC+0.5 |
V |
| Input Low Voltage (VIL) |
-0.5 |
– |
0.8 |
V |
| Output High Voltage (VOH) |
2.4 |
– |
– |
V |
| Output Low Voltage (VOL) |
– |
– |
0.4 |
V |
Timing Specifications
| Parameter |
Symbol |
Value |
Unit |
| Clock to Output Delay |
tCO |
20 |
ns |
| Clock Frequency (Max) |
fMAX |
50 |
MHz |
| Setup Time |
tSU |
5 |
ns |
| Hold Time |
tH |
0 |
ns |
| Chip Enable to Output |
tCE |
20 |
ns |
XC18V01PC20I Pin Configuration
20-Pin PLCC Pinout
| Pin Number |
Pin Name |
Function |
| 1 |
VCC |
Power Supply (+3.3V) |
| 2-9 |
D0-D7 |
Data Output Pins |
| 10 |
GND |
Ground |
| 11 |
OE |
Output Enable (Active Low) |
| 12 |
CE |
Chip Enable (Active Low) |
| 13 |
RESET |
Reset Input (Active Low) |
| 14 |
CLK |
Clock Input |
| 15 |
CEO |
Cascade Enable Output |
| 16-19 |
A0-A3 |
Address Inputs |
| 20 |
VCC |
Power Supply (+3.3V) |
Application Areas for XC18V01PC20I
Industrial and Commercial Applications
Telecommunications Equipment: Used in network switches, routers, and base station controllers where reliable configuration storage ensures system uptime and field upgradeability.
Industrial Control Systems: Provides non-volatile configuration memory for PLCs, motion controllers, and automation equipment requiring robust operation in harsh environments.
Medical Electronics: Supports reconfigurable diagnostic equipment and imaging systems where configuration flexibility enables feature updates and regulatory compliance.
Aerospace and Defense: Military-grade temperature range supports avionics, radar systems, and secure communication equipment requiring reliable configuration storage.
Automotive Electronics: Enables advanced driver assistance systems (ADAS) and infotainment controllers with field-programmable functionality.
Configuration Modes Explained
Master SelectMAP Mode
In this configuration, the FPGA generates the configuration clock (CCLK) that drives the XC18V01PC20I PROM. This mode provides the simplest interface, requiring minimal external components while delivering configuration speeds up to 50 MHz.
Slave Parallel Mode
An external oscillator generates the configuration clock, driving both the PROM and FPGA simultaneously. This mode offers greater timing control and supports free-running oscillators for deterministic configuration timing.
Slave SelectMAP Mode
Similar to Slave Parallel but with enhanced error detection and recovery capabilities. Ideal for systems requiring robust configuration with built-in error checking mechanisms.
Design Considerations and Best Practices
PCB Layout Guidelines
Decoupling Capacitors: Place 0.1μF ceramic capacitors within 0.5 inches of each VCC pin to minimize power supply noise and ensure stable operation during high-speed configuration cycles.
Trace Impedance: Maintain controlled impedance traces (50-60 ohms) for clock signals to prevent reflections and ensure signal integrity at maximum clock frequencies.
Ground Plane: Use a solid ground plane beneath the device to reduce electromagnetic interference and improve thermal dissipation during active programming operations.
Thermal Management
The XC18V01PC20I operates within industrial temperature ranges (-40°C to +85°C). Ensure adequate airflow or heat sinking for continuous operation above 70°C ambient temperature, particularly in enclosed systems.
Programming and Configuration
JTAG Programming Interface
The XC18V01PC20I supports industry-standard JTAG programming through dedicated tools like Xilinx iMPACT or AMD Vivado Design Suite. This enables:
- Boundary scan testing for manufacturing verification
- In-circuit programming without special fixtures
- Daisy-chain programming of multiple devices
- Configuration verification with built-in readback
Configuration File Formats
Supports industry-standard file formats including:
- .BIT files for direct FPGA configuration
- .MCS files for PROM programming
- .HEX files for custom bootloader applications
Comparison with Similar Products
XC18V01PC20I vs. XC18V01PC20C
| Feature |
XC18V01PC20I (Industrial) |
XC18V01PC20C (Commercial) |
| Temperature Range |
-40°C to +85°C |
0°C to +70°C |
| Typical Applications |
Industrial, Automotive, Military |
Consumer Electronics, IT Equipment |
| Price Premium |
Higher |
Standard |
| Reliability Grade |
Enhanced |
Standard |
Ordering Information and Package Details
Part Number Breakdown
XC18V01PC20I decodes as:
- XC18V = In-System Programmable Configuration PROM family
- 01 = 1 Mbit memory density
- PC = Plastic Chip Carrier package type
- 20 = 20-pin configuration
- I = Industrial temperature range (-40°C to +85°C)
Package Specifications
Dimensions: 9.0mm x 9.0mm x 2.5mm (L x W x H)
Weight: Approximately 0.5 grams
Moisture Sensitivity: MSL 3 (Moisture Sensitivity Level 3)
RoHS Compliance: Lead-free, RoHS compliant versions available
Quality and Reliability
Manufacturing Standards
AMD Xilinx manufactures the XC18V01PC20I under strict quality control processes including:
- ISO 9001 certified production facilities
- Automotive-grade quality management (IATF 16949)
- 100% electrical testing before shipment
- Extended burn-in testing for high-reliability applications
Reliability Metrics
MTBF (Mean Time Between Failures): >1,000,000 hours at 55°C
Data Retention: 20 years minimum at 85°C
Write/Erase Cycles: 10,000 minimum program cycles
ESD Protection: 2kV HBM (Human Body Model)
Frequently Asked Questions
What FPGAs are compatible with XC18V01PC20I?
The XC18V01PC20I is compatible with Spartan, Virtex, and other Xilinx FPGA families supporting parallel configuration modes. Consult AMD Xilinx configuration user guides for specific device compatibility.
Can multiple XC18V01PC20I devices be cascaded?
Yes, the CEO (Cascade Enable Output) pin allows daisy-chaining multiple devices for configurations exceeding 1 Mbit, enabling scalable memory solutions for large FPGA designs.
What programming tools support XC18V01PC20I?
AMD Vivado Design Suite, iMPACT, and third-party JTAG programmers supporting IEEE 1149.1 standard can program the XC18V01PC20I through its ISP interface.
Is the XC18V01PC20I suitable for military applications?
The industrial temperature range (-40°C to +85°C) makes it suitable for many military applications, though extended-range military-grade versions may be required for aerospace environments.
Conclusion: Why Choose XC18V01PC20I
The XC18V01PC20I represents a proven, reliable configuration memory solution for industrial FPGA applications. Its combination of in-system programmability, robust industrial temperature operation, and flexible interface options makes it ideal for systems requiring field-upgradeable configuration storage. Whether designing telecommunications equipment, industrial controllers, or automotive electronics, the XC18V01PC20I delivers the performance and reliability demanded by mission-critical applications.
For <link url=”https://pcbsync.com/xilinx-fpga/”>Xilinx FPGA</link> designs requiring non-volatile configuration memory with industrial-grade reliability, the XC18V01PC20I offers an optimal balance of features, performance, and cost-effectiveness.
