Product Overview: AMD XA9572XL-15VQG64I CPLD
The XA9572XL-15VQG64I represents a powerful solution in the complex programmable logic device category, manufactured by AMD (formerly Xilinx). This advanced CPLD chip delivers exceptional performance for aerospace, military, and industrial applications requiring reliable programmable logic solutions.
Key Technical Specifications
The XA9572XL-15VQG64I features robust capabilities designed for demanding embedded applications:
| Specification |
Value |
| Product Type |
Complex Programmable Logic Device (CPLD) |
| Part Number |
XA9572XL-15VQG64I |
| Manufacturer |
AMD (formerly Xilinx) |
| Series |
XA9500XL XA |
| Package Type |
64-VQFP (10×10 mm) |
| Number of Macrocells |
72 |
| Logic Elements/Blocks |
4 |
| Available I/O Pins |
52 |
| Equivalent Gate Count |
1,600 gates |
| Programming Type |
In-System Programmable (ISP) |
Performance Characteristics and Timing
Delay Time and Speed Grade
The XA9572XL-15VQG64I offers impressive timing performance with a maximum propagation delay of 15.5 nanoseconds. This speed grade makes it suitable for applications requiring fast logic implementation and quick response times.
| Performance Parameter |
Specification |
| Maximum Delay Time (tpd) |
15.5 ns |
| Operating Voltage (Internal) |
3V to 3.6V |
| Temperature Range |
-40°C to +85°C (Industrial) |
| Mounting Type |
Surface Mount Technology |
Electrical and Environmental Features
Power Supply Requirements
The device operates within a narrow voltage range optimized for low-power consumption:
- Internal supply voltage: 3.0V to 3.6V
- Compatible with standard 3.3V logic systems
- Designed for energy-efficient operation in battery-powered systems
Temperature Range and Reliability
The industrial-grade temperature range (-40°C to +85°C) ensures reliable operation across challenging environmental conditions, making this CPLD ideal for:
- Automotive electronics
- Industrial control systems
- Military and aerospace applications
- Outdoor equipment installations
- Harsh environment deployments
Package and Pin Configuration
64-VQFP Package Details
The XA9572XL-15VQG64I comes in a compact 64-pin Very thin Quad Flat Pack (VQFP) configuration:
| Package Feature |
Description |
| Package Style |
64-TQFP / 64-VQFP |
| Dimensions |
10mm x 10mm |
| Pin Count |
64 pins |
| Usable I/O |
52 pins |
| Pitch |
Standard TQFP pitch |
| Mounting |
Surface mount |
Pin Utilization
With 52 available I/O pins out of 64 total pins, designers gain substantial connectivity options while maintaining a compact footprint. This high pin-to-package ratio maximizes design flexibility without requiring larger packages.
Programming and Configuration
In-System Programmability
One of the standout features of the XA9572XL-15VQG64I is its in-system programming capability. This allows:
- Field updates without device removal
- Rapid prototyping and design iteration
- Cost-effective production programming
- Easy firmware updates after deployment
The ISP functionality reduces manufacturing complexity and enables agile development cycles for embedded system designers.
Architecture and Logic Resources
Macrocell Organization
The device provides 72 macrocells organized into 4 logic blocks, offering:
- Flexible logic implementation
- Product term sharing
- Configurable feedback paths
- Register and combinatorial output options
Gate Equivalent Capacity
With 1,600 equivalent gates, the XA9572XL-15VQG64I accommodates moderate complexity designs including:
- State machine implementations
- Control logic circuits
- Interface bridging
- Protocol converters
- Glue logic applications
Compatible Technologies and Integration
Integration with Xilinx FPGA Ecosystem
For designers working with Xilinx FPGA solutions, the XA9572XL-15VQG64I offers complementary functionality. While FPGAs excel at complex parallel processing, this CPLD provides efficient fixed-function logic at lower power consumption, making hybrid designs possible where both technologies work together.
Application Areas
Primary Use Cases
The XA9572XL-15VQG64I excels in various applications:
Industrial Applications:
- Motor control logic
- Sensor interface circuits
- Communication protocol handling
- Safety interlocks
- Production equipment controllers
Aerospace and Military:
- Avionics control systems
- Radar processing support
- Communication equipment
- Navigation systems
- Rugged portable devices
Consumer Electronics:
- Interface conversion
- Display controllers
- Power management sequencing
- Signal conditioning
- Legacy system updates
Design Considerations
PCB Layout Guidelines
When implementing the XA9572XL-15VQG64I in your design:
| Consideration |
Recommendation |
| Power Decoupling |
Place 0.1µF capacitors near each power pin |
| Signal Integrity |
Use controlled impedance for high-speed signals |
| Thermal Management |
Ensure adequate copper pour for heat dissipation |
| Programming Interface |
Provide accessible JTAG or ISP connection |
Comparison with Alternative Solutions
When to Choose CPLDs vs FPGAs
| Feature |
CPLD (XA9572XL) |
FPGA |
| Power-up Time |
Instant |
Configuration required |
| Power Consumption |
Lower |
Higher |
| Design Complexity |
Up to moderate |
Simple to very complex |
| Cost (Low Volume) |
More economical |
Higher |
| Predictable Timing |
Excellent |
Good |
Product Status and Availability
Important Availability Information
Note: The XA9572XL-15VQG64I has been marked as obsolete by the manufacturer and is no longer in production. Engineers designing new products should consider alternative solutions.
Recommended Alternatives
For new designs, consider these compatible alternatives:
Option 1: LC4128V-75TN100I
- Manufacturer: Lattice Semiconductor
- Macrocells: 128
- Package: 100-TQFP
- Enhanced capacity for migration projects
Option 2: T13Q100F3I4
- Manufacturer: Efinix
- Modern architecture
- Cost-effective replacement
- Improved power efficiency
Development Tools and Software Support
Design Software
The XA9572XL-15VQG64I was traditionally supported by:
- Xilinx ISE (Integrated Synthesis Environment)
- Xilinx iMPACT for programming
- Third-party VHDL/Verilog compilers
- JTAG programming tools
Programming Languages
Designers can implement logic using:
- VHDL (VHSIC Hardware Description Language)
- Verilog HDL
- Schematic entry (legacy support)
Quality and Compliance
Standards Compliance
The XA9572XL-15VQG64I meets various industry standards:
- RoHS compliant (lead-free options)
- Industrial temperature grade certified
- ESD protection to industry standards
- Moisture sensitivity level (MSL) rated
Technical Support Resources
Documentation
Engineers working with this device should reference:
- Official AMD/Xilinx datasheets
- Application notes for XA9500XL series
- Programming specifications
- Package mechanical drawings
Community Resources
- Online engineering forums
- Academic research papers
- Application example designs
- Technical discussion groups
Conclusion
The XA9572XL-15VQG64I served as a reliable CPLD solution for numerous industrial, aerospace, and embedded applications. While now obsolete, it established performance benchmarks in its class with 72 macrocells, 52 I/O pins, and 15.5ns timing. Engineers maintaining legacy systems will find adequate documentation, while new designs should migrate to modern alternatives offering enhanced features and continued manufacturer support.
For projects requiring programmable logic integration with FPGA technology, exploring the broader Xilinx FPGA product portfolio provides complementary solutions that can work alongside or replace legacy CPLD implementations.
