Introduction to XCS20XL-4TQ144I FPGA
The XCS20XL-4TQ144I is a field programmable gate array from the Spartan-XL family, featuring 20,000 gates and 950 logic cells, designed for industrial temperature applications. This robust FPGA solution delivers exceptional performance for embedded system design, telecommunications equipment, and industrial automation projects requiring reliable operation in harsh environments.
Key Product Specifications
Technical Overview Table
| Specification |
Details |
| Part Number |
XCS20XL-4TQ144I |
| Manufacturer |
AMD (formerly Xilinx) |
| Product Family |
Spartan-XL |
| Logic Gates |
20,000 Gates |
| Logic Cells |
950 Cells |
| CLBs |
400 Configurable Logic Blocks |
| Total RAM |
12,800 Bits |
| Maximum Frequency |
217 MHz |
| Supply Voltage |
3.0V ~ 3.6V |
| Package Type |
144-TQFP (Thin Quad Flat Pack) |
| I/O Pins |
113 User I/O |
| Operating Temperature |
-40°C to +100°C (Industrial Grade) |
| Mounting Type |
Surface Mount |
XCS20XL-4TQ144I Features and Benefits
Core Features
The XCS20XL-4TQ144I delivers comprehensive functionality for demanding applications through its advanced architecture and proven reliability in the Xilinx FPGA product line.
Logic and Memory Resources
- 20K System Gates: Provides sufficient logic resources for complex digital designs
- 950 Logic Cells: Optimized for implementing custom logic functions
- 400 CLBs: Flexible configurable logic blocks for efficient resource utilization
- 12,800 RAM Bits: Integrated memory for data buffering and storage applications
Performance Characteristics
- 217 MHz Operating Speed: High-performance processing capability
- -4 Speed Grade: Balanced performance and power consumption
- Industrial Temperature Range: -40°C to +100°C operation ensures reliability in extreme environments
- 3.3V Single Supply Operation: Simplified power design and reduced system complexity
Package and Pin Configuration
| Package Feature |
Specification |
| Package Type |
144-Pin TQFP |
| Package Dimensions |
20mm × 20mm |
| Pin Pitch |
Standard TQFP spacing |
| User I/O Pins |
113 programmable I/O |
| Mounting Style |
Surface Mount Technology (SMT) |
| Lead Configuration |
Gull Wing |
Applications and Use Cases
Primary Applications
The XCS20XL-4TQ144I excels in various industrial and commercial applications:
- Industrial Control Systems
- Process automation controllers
- Factory automation equipment
- Programmable logic controllers (PLCs)
- Telecommunications Equipment
- Protocol converters
- Data communication interfaces
- Signal processing modules
- Embedded Systems
- Custom logic implementation
- Hardware acceleration
- Peripheral interface controllers
- Test and Measurement
- Instrumentation control
- Data acquisition systems
- Signal generation equipment
Application Benefits Table
| Application Area |
Key Benefits |
| Industrial Automation |
Reliable operation in harsh environments, wide temperature range |
| Telecom Infrastructure |
High-speed operation at 217 MHz, sufficient I/O for complex interfaces |
| Embedded Systems |
Flexible logic implementation, in-system programmability |
| Medical Equipment |
Industrial-grade reliability, stable 3.3V operation |
| Automotive Electronics |
Extended temperature rating, robust TQFP package |
Technical Architecture
Logic Architecture Details
The XCS20XL-4TQ144I implements Xilinx’s proven Spartan-XL architecture:
- Hierarchical Design Structure: Efficient resource utilization through CLB organization
- Distributed RAM: Integrated memory within logic blocks for low-latency access
- Fast Carry Logic: Optimized arithmetic operations and high-speed counting
- Internal Routing: Programmable interconnect for flexible signal routing
Memory and Storage Configuration
| Memory Type |
Capacity |
Application |
| Total RAM Bits |
12,800 bits |
Data buffering, lookup tables |
| Distributed RAM |
Integrated in CLBs |
Low-latency local storage |
| Configuration Memory |
SRAM-based |
Design storage and reconfiguration |
Programming and Development
Supported Development Tools
- ISE Design Suite: Complete FPGA design environment
- JTAG Programming: IEEE 1149.1 boundary-scan support
- In-System Configuration: Field programmability without device removal
- ChipScope Pro: Real-time debugging and analysis
Design Implementation
The XCS20XL-4TQ144I supports multiple design entry methods for maximum flexibility in project development and implementation strategies.
Electrical Specifications
Power Requirements Table
| Parameter |
Minimum |
Typical |
Maximum |
Unit |
| Supply Voltage (VCC) |
3.0 |
3.3 |
3.6 |
V |
| Operating Temperature |
-40 |
25 |
+100 |
°C |
| Static Power |
– |
TBD |
– |
mW |
| Dynamic Power |
– |
Varies |
– |
mW |
Operating Conditions
- Recommended Operating Voltage: 3.3V ±10%
- Temperature Grade: Industrial (-40°C to +100°C)
- Junction Temperature (TJ): Maximum +100°C
- Storage Temperature: -65°C to +150°C
Comparison with Related Products
XCS20XL Family Comparison
| Part Number |
Speed Grade |
Package |
Temperature Range |
I/O Pins |
| XCS20XL-4TQ144I |
-4 |
144-TQFP |
Industrial (-40 to +100°C) |
113 |
| XCS20XL-4TQ144C |
-4 |
144-TQFP |
Commercial (0 to +85°C) |
113 |
| XCS20XL-4VQ100I |
-4 |
100-TQFP |
Industrial (-40 to +100°C) |
77 |
| XCS20XL-4PQ208I |
-4 |
208-PQFP |
Industrial (-40 to +100°C) |
160 |
Design Considerations
PCB Layout Guidelines
When implementing the XCS20XL-4TQ144I in your design:
- Power Supply Decoupling: Place 0.1µF capacitors near each VCC pin
- Ground Plane: Implement continuous ground plane for noise reduction
- Thermal Management: Ensure adequate airflow and heat dissipation
- Signal Integrity: Maintain proper trace impedance for high-speed signals
Configuration and Setup
The device configuration process requires proper sequencing and timing to ensure reliable FPGA initialization and operation.
Reliability and Quality
Quality Assurance
- RoHS Compliant: Meets environmental standards
- Industrial Grade: Extended temperature qualification
- Long-term Availability: Supported by major distributors
- Quality Testing: 100% factory tested
Reliability Features Table
| Feature |
Description |
| ESD Protection |
Built-in electrostatic discharge protection |
| Latch-up Immunity |
CMOS latch-up resistant design |
| Temperature Cycling |
Tested for industrial temperature range |
| MTBF |
High mean time between failures |
Purchasing and Availability
Distribution Channels
The XCS20XL-4TQ144I is available through authorized electronics distributors including DigiKey, Mouser, Arrow, and other major suppliers worldwide.
Package Options
- Tray Packaging: Standard for manufacturing environments
- Tape and Reel: Available for automated assembly processes
- Cut Tape: Small quantity orders for prototyping
Order Information Table
| Order Code |
Package Type |
Quantity per Package |
Lead Time |
| XCS20XL-4TQ144I |
144-TQFP Tray |
Standard |
Check distributor |
Frequently Asked Questions
What makes the XCS20XL-4TQ144I suitable for industrial applications?
The industrial temperature rating of -40°C to +100°C ensures reliable operation in harsh environments, making it ideal for factory automation, outdoor equipment, and automotive applications.
What development tools are compatible with this FPGA?
The device is supported by Xilinx ISE Design Suite, which provides comprehensive tools for design entry, synthesis, implementation, and debugging of FPGA projects.
How does the -4 speed grade compare to other options?
The -4 speed grade offers balanced performance at 217 MHz operation, providing sufficient speed for most industrial and telecommunications applications while maintaining reasonable power consumption.
What is the difference between the “I” and “C” temperature grades?
The “I” suffix indicates Industrial temperature range (-40°C to +100°C), while “C” denotes Commercial range (0°C to +85°C). Choose Industrial grade for harsh environment applications.
Technical Support and Resources
Documentation Available
- Product datasheet with complete electrical specifications
- Application notes for common design scenarios
- Reference designs and example projects
- PCB layout guidelines and best practices
Additional Resources
For comprehensive FPGA design information, development boards, and technical documentation, consult the manufacturer’s official resources and authorized technical support channels.
Conclusion
The XCS20XL-4TQ144I represents a proven solution for industrial-grade FPGA applications requiring reliable performance in extended temperature ranges. With 20,000 gates, 113 I/O pins, and robust 144-TQFP packaging, this device delivers the flexibility and performance needed for demanding embedded system designs. Whether you’re developing industrial control systems, telecommunications equipment, or custom logic solutions, the XCS20XL-4TQ144I provides the resources and reliability required for successful project implementation.
