Overview of the XC4036XLA-09HQ240C FPGA
The XC4036XLA-09HQ240C is a professional-grade Field Programmable Gate Array (FPGA) from AMD (formerly Xilinx), designed to deliver exceptional performance in embedded systems, industrial automation, and digital signal processing applications. This advanced programmable logic device combines the flexibility of SRAM-based reconfigurable architecture with the reliability required for mission-critical applications.
Part of the renowned XC4000XLA/XV family, this FPGA represents fifteen years of design evolution and incorporates feedback from thousands of engineering teams worldwide. Whether you’re developing telecommunications equipment, industrial controllers, or advanced computing systems, the XC4036XLA-09HQ240C provides the performance and versatility you need.
Key Technical Specifications
Core Performance Features
| Specification |
Value |
Description |
| Logic Cells |
3,078 cells |
Maximum configurable logic blocks for complex designs |
| Gate Count |
36,000 gates |
Equivalent gate density for circuit implementation |
| CLBs (Configurable Logic Blocks) |
1,296 |
Building blocks for digital logic circuits |
| Maximum Frequency |
227 MHz |
High-speed operation for demanding applications |
| Process Technology |
0.35μm CMOS |
Three-layer metal fabrication process |
| Operating Voltage |
3.3V (3.0V to 3.6V) |
Low-power consumption design |
Package and Physical Characteristics
| Parameter |
Specification |
| Package Type |
240-Pin HSPQFP (Heat Sink Plastic Quad Flat Pack) |
| I/O Pins |
193 user-configurable I/O |
| Package Variant |
HQ240 with exposed pad |
| Mounting Type |
Surface Mount Technology (SMT) |
| Speed Grade |
-09 (9ns performance) |
| Temperature Grade |
Commercial (C) – 0°C to +85°C |
Electrical Characteristics
| Property |
Rating |
| Supply Voltage (Vcc) |
3.0V to 3.6V |
| Core Voltage |
3.3V nominal |
| I/O Standard Support |
TTL, CMOS, LVTTL compatible |
| Power Dissipation |
Optimized for low-power applications |
| ESD Protection |
Industry-standard protection on all pins |
Advanced Architecture and Design Features
VersaBlock Logic Architecture
The XC4036XLA-09HQ240C incorporates AMD’s innovative VersaBlock architecture, which provides:
- Flexible logic implementation with both combinatorial and registered outputs
- Dual flip-flops per CLB for efficient state machine implementation
- Fast carry logic for arithmetic operations and counters
- Distributed RAM capability using LUTs as memory elements
- Dedicated multiplexers for data routing optimization
VersaRing I/O Interface Technology
The proprietary VersaRing I/O system delivers exceptional signal integrity and flexibility:
- 193 user-programmable I/O pins supporting multiple voltage standards
- Programmable slew-rate control to minimize signal reflections and EMI
- Individual tri-state buffers for each output
- Zero flip-flop hold time for input registers, simplifying system timing analysis
- High drive capability supporting various load conditions
Interconnect Resources
The XC4036XLA features a rich hierarchy of routing resources:
- Long lines for high-speed, low-skew global signals
- General-purpose interconnect for flexible routing
- Direct connections between adjacent CLBs for high-performance datapaths
- Dedicated clock distribution network with minimal skew
- Global clock buffers supporting up to 8 global clocks
Application Areas and Use Cases
Industrial Automation and Control
The XC4036XLA-09HQ240C excels in industrial environments where reliability and programmability are essential:
- Motion control systems with real-time feedback processing
- PLC (Programmable Logic Controller) implementations
- Industrial networking protocols (Profibus, Modbus, EtherCAT)
- Machine vision processing for quality control
- Sensor data acquisition and processing systems
Telecommunications and Networking
Ideal for high-speed communication applications:
- Protocol converters and bridges
- Digital signal processing for audio/video codecs
- Network packet processing and filtering
- Software-defined radio implementations
- Base station controllers for wireless systems
Embedded Systems Development
Perfect for custom embedded solutions:
- Custom peripherals and interfaces not available in standard microcontrollers
- Hardware acceleration for compute-intensive algorithms
- ASIC prototyping before full production
- Legacy system upgrades maintaining compatibility while adding features
- Real-time data processing with deterministic latency
Test and Measurement Equipment
Engineers rely on this Xilinx FPGA for:
- High-speed data acquisition systems
- Arbitrary waveform generators
- Logic analyzers and protocol analyzers
- Automated test equipment (ATE)
- Precision timing and synchronization circuits
Design Tools and Development Support
Xilinx ISE Design Suite
The XC4036XLA-09HQ240C is fully supported by industry-standard development tools:
- Schematic capture for visual design entry
- VHDL and Verilog HDL synthesis for advanced RTL design
- ABEL hardware description language support
- Timing analyzer for performance verification
- ChipScope Pro for in-system debugging
Third-Party Tool Integration
Compatible with popular EDA tools:
- Synopsys Design Compiler for synthesis optimization
- Mentor Graphics Precision RTL synthesis
- Cadence Encounter for advanced place-and-route
- ModelSim for comprehensive simulation and verification
Performance Benchmarks and Capabilities
Speed Performance
| Function |
Performance |
| Toggle Frequency |
227 MHz maximum |
| System Clock |
Up to 200 MHz typical |
| I/O to I/O Delay |
9ns typical (speed grade -09) |
| CLB to CLB Delay |
4-6ns typical depending on routing |
| Setup Time |
3ns typical for input registers |
Resource Utilization Examples
| Application Type |
Typical CLB Usage |
Available Headroom |
| 16-bit Microprocessor |
~60% (778 CLBs) |
40% for peripherals |
| 64-tap FIR Filter |
~45% (583 CLBs) |
55% for additional processing |
| UART + SPI + I2C Controllers |
~15% (194 CLBs) |
85% for application logic |
| JPEG Encoder Core |
~75% (972 CLBs) |
25% for system integration |
Programming and Configuration
Configuration Methods
The XC4036XLA-09HQ240C supports multiple programming modes:
- Master Serial Mode – FPGA controls configuration process
- Slave Serial Mode – External controller manages programming
- Boundary-Scan (JTAG) – IEEE 1149.1 compliant for testing and programming
- SelectMAP Parallel Mode – High-speed parallel configuration
Configuration Memory
- SRAM-based configuration for unlimited reprogrammability
- Typical configuration time: 50-100ms depending on mode
- Bitstream size: Approximately 400Kb
- Configuration retention: Until power-down or reconfiguration command
- Readback capability: Verify configuration integrity
Quality and Reliability Standards
Manufacturing Quality
The XC4036XLA-09HQ240C meets stringent quality requirements:
- RoHS Compliance Status: Contains lead (legacy product – not RoHS compliant)
- JEDEC qualification: Full compliance with industry standards
- Moisture Sensitivity Level (MSL): Level 3 per J-STD-020
- ESD rating: HBM Class 1C (>2000V)
Reliability Metrics
| Metric |
Specification |
| MTBF (Mean Time Between Failures) |
>1,000,000 hours |
| Operating Temperature Range |
0°C to +85°C (Commercial) |
| Storage Temperature |
-65°C to +150°C |
| Thermal Resistance (θJA) |
Consult thermal management guide |
| Recommended Reflow Profile |
JEDEC J-STD-020 compliant |
Comparison with Alternative FPGA Options
XC4036XLA vs. XC4036XL
| Feature |
XC4036XLA-09HQ240C |
XC4036XL |
| Process Technology |
0.35μm |
0.5μm |
| Maximum Frequency |
227 MHz |
180 MHz |
| Power Consumption |
Lower |
Higher |
| Price Point |
Competitive |
Legacy |
| Availability |
Good |
Limited |
Migration Path Options
For new designs or replacements, consider:
- XC6SLX series: Modern Spartan-6 family with enhanced performance
- Artix-7 FPGAs: Latest 7-series technology with significantly higher density
- Pin-compatible alternatives: Contact AMD/Xilinx for exact replacement recommendations
Pin Configuration and Interfacing
I/O Banking and Standards
The 240-pin HQ package organizes I/Os into banks for voltage compatibility:
- 4 independent I/O banks supporting mixed-voltage operation
- Bank voltage range: 2.5V to 5.0V tolerant inputs
- Output voltage: Programmable based on VCCO supply
- Simultaneous switching outputs: Controlled to minimize ground bounce
Typical Pin Assignments
| Pin Function |
Quantity |
Notes |
| User I/O |
193 pins |
Bidirectional, configurable |
| Dedicated Configuration |
4-6 pins |
Mode-dependent |
| Global Clock Inputs |
4 pins |
GCLK0-GCLK3 |
| Power Pins (VCC) |
~30 pins |
Core power distribution |
| Ground Pins (GND) |
~35 pins |
Return paths and shielding |
| VCCO Banks |
8 pins |
I/O power supply (2 per bank) |
Thermal Management Recommendations
Heat Dissipation Guidelines
For reliable operation of the XC4036XLA-09HQ240C:
- Heatsink attachment: Exposed pad designed for thermal contact
- PCB thermal vias: Minimum 16 vias under exposed pad to internal ground plane
- Airflow: Natural or forced convection depending on power dissipation
- Thermal compound: Apply between FPGA and heatsink for optimal transfer
- Junction temperature monitoring: Stay below 85°C for commercial-grade parts
Power Supply Design
Recommended power supply specifications:
- Core voltage regulation: ±5% tolerance on 3.3V
- Decoupling capacitors: 0.1µF ceramic at each VCC pin, plus 10µF tantalum per bank
- Power plane design: Separate analog and digital grounds if using ADC/DAC
- Inrush current: Design for 2-3A peak during configuration
- Typical operating current: 200-500mA depending on design complexity and toggle rate
Ordering Information and Availability
Part Number Breakdown
XC4036XLA-09HQ240C
- XC4036XLA: Base family and gate count
- 09: Speed grade (9ns)
- HQ240: Package type (Heat Sink Quad, 240 pins)
- C: Commercial temperature range
Related Part Numbers
| Part Number |
Difference |
| XC4036XLA-09HQ240I |
Industrial temperature (-40°C to +100°C) |
| XC4036XLA-09BG432C |
432-pin BGA package, more I/O |
| XC4036XLA-09HQ304C |
304-pin package, additional I/O |
| XC4036XLA-07HQ240C |
Faster speed grade (7ns) |
Frequently Asked Questions (FAQ)
Is the XC4036XLA-09HQ240C suitable for new designs?
While this FPGA offers proven reliability and excellent performance, AMD has released newer families with enhanced capabilities. For new projects, evaluate both legacy XC4000XLA and modern alternatives based on your specific requirements, availability, and long-term support needs.
What development boards support the XC4036XLA?
Several third-party evaluation boards feature the XC4000XLA family. Check with AMD/Xilinx authorized distributors for current availability. Alternatively, many engineers create custom PCBs for production applications.
Can I use modern Vivado Design Suite with this device?
No, the XC4036XLA family requires Xilinx ISE Design Suite (version 14.7 or earlier). Vivado supports only 7-series and newer FPGA families. ISE is available for download from AMD’s legacy products page.
What is the difference between XLA and XV variants?
Both XLA and XV are 3.3V variants within the XC4000 family. The XV version offers enhanced performance specifications and additional features compared to the base XL series, while XLA provides similar capabilities with specific optimizations.
How do I handle the exposed pad on the HQ240 package?
The exposed pad serves as both electrical ground and thermal interface. Connect it to the ground plane with multiple vias (recommended 16+) and ensure good thermal contact if using a heatsink. This pad is critical for both electrical performance and heat dissipation.
Conclusion: Why Choose the XC4036XLA-09HQ240C
The XC4036XLA-09HQ240C FPGA delivers an exceptional balance of performance, flexibility, and proven reliability. With 36,000 gates, 193 I/O pins, and 227 MHz operation, it handles demanding digital logic applications while maintaining the reprogrammability that modern designs require.
Whether you’re upgrading existing systems, prototyping new designs, or seeking a cost-effective programmable logic solution, this FPGA provides the resources and capabilities to succeed. The extensive development tool support, comprehensive documentation, and robust design community make it an accessible choice for engineers at all experience levels.
For industrial control, telecommunications, embedded systems, and test equipment applications, the XC4036XLA-09HQ240C continues to serve as a reliable workhorse in countless deployed systems worldwide.
