Overview of XC3195-4PQ160C Field Programmable Gate Array
The XC3195-4PQ160C is a high-performance Field Programmable Gate Array (FPGA) manufactured by Xilinx (now part of AMD), belonging to the renowned XC3000 series. This advanced programmable logic device delivers exceptional flexibility and performance for complex digital circuit design applications, making it an ideal choice for engineers seeking reliable FPGA solutions.
Key Specifications at a Glance
| Specification |
Details |
| Part Number |
XC3195-4PQ160C |
| Manufacturer |
AMD Xilinx (formerly Xilinx) |
| Product Family |
XC3000 Series FPGAs |
| Logic Gates |
7,500 Gates |
| Configurable Logic Blocks (CLBs) |
484 Cells |
| Operating Frequency |
Up to 227 MHz |
| Supply Voltage |
5V |
| Package Type |
160-Pin PQFP (Plastic Quad Flat Pack) |
| Speed Grade |
-4 (Standard Performance) |
| Technology |
CMOS |
| Mounting Type |
Surface Mount |
| Operating Temperature |
Commercial (0°C to +70°C) |
Technical Features and Architecture
Advanced FPGA Architecture
The XC3195-4PQ160C incorporates a sophisticated Logic Cell Array (LCA) architecture that provides maximum design flexibility. This Xilinx FPGA features three main configurable elements working in harmony to deliver exceptional performance.
Core Components Table
| Component |
Function |
Quantity |
| Configurable Logic Blocks (CLBs) |
Performs logic functions and data storage |
484 Cells |
| Input/Output Blocks (IOBs) |
Manages signal interfacing with external devices |
138 I/O Pins |
| Interconnect Resources |
Provides flexible routing between components |
Comprehensive Routing Matrix |
| Configuration Memory |
Stores programming bitstream |
Internal SRAM-based |
Performance Characteristics
| Parameter |
Specification |
Advantage |
| System Clock Rate |
Up to 227 MHz |
Enables high-speed digital processing |
| Logic Gate Equivalent |
7,500 Gates |
Sufficient for medium-complexity designs |
| Flip-Flop Toggle Rate |
190-370 MHz guaranteed |
Fast sequential logic operations |
| Logic Delay |
1.55-4.1 ns |
Minimal propagation delay |
| Output Current |
±8 mA (sink/source) |
Robust signal driving capability |
| Power-Down Current |
Maximum 5 mA |
Low standby power consumption |
Applications and Use Cases
Primary Application Areas
The XC3195-4PQ160C excels in various demanding applications:
- Industrial Automation Systems: Process control, PLC replacement, factory automation
- Digital Signal Processing: Real-time data processing, filter implementation
- Communication Equipment: Protocol converters, data encryption/decryption
- Test and Measurement: Logic analyzers, pattern generators, instrumentation
- Medical Electronics: Diagnostic equipment, imaging systems
- Aerospace and Defense: Avionics systems, radar processing (where applicable)
- Prototyping: Rapid prototyping of custom digital circuits
Industry Benefits Comparison
| Feature |
XC3195-4PQ160C |
Traditional ASIC |
Standard MCU |
| Development Time |
Fast (hours to days) |
Slow (months) |
Medium |
| Reconfigurability |
Unlimited reprogramming |
Not reconfigurable |
Limited |
| Design Flexibility |
High |
Fixed post-production |
Limited |
| Initial Cost |
Low |
Very high (NRE) |
Low |
| Customization |
Fully customizable |
Fully customizable |
Limited |
| Parallel Processing |
Excellent |
Excellent |
Poor |
Design and Development Support
Compatible Development Tools
| Tool Category |
Software |
Purpose |
| Design Entry |
XACT Development System |
Schematic capture and HDL entry |
| Simulation |
ISE Design Suite (legacy) |
Logic and timing simulation |
| Place and Route |
Auto place-and-route tools |
Automatic optimization |
| Programming |
iMPACT, JTAG tools |
Device configuration |
| Verification |
In-circuit emulation tools |
Design validation |
Configuration Methods
The XC3195-4PQ160C supports multiple configuration modes for maximum design flexibility:
- Master Mode: FPGA actively reads from external serial or parallel PROM
- Slave Mode: External controller writes configuration data to FPGA
- Peripheral Mode: Configuration through microprocessor interface
- JTAG Boundary Scan: For programming and testing via IEEE 1149.1 standard
Package and Pin Configuration
Physical Dimensions and Specifications
| Package Parameter |
Value |
| Package Type |
PQFP (Plastic Quad Flat Pack) |
| Total Pins |
160 |
| User I/O Pins |
138 (dedicated) |
| Power/Ground Pins |
Multiple VCC/GND pairs |
| Pin Pitch |
Standard PQFP spacing |
| Body Size |
Standard 160-pin PQFP footprint |
| Lead Style |
Gull-wing for surface mount |
| Moisture Sensitivity |
MSL 3 (typically) |
Quality and Reliability
Manufacturing Standards
| Standard |
Compliance |
| RoHS Compliance |
Varies by manufacturing date |
| Quality Grade |
Commercial/Industrial |
| Lifecycle Status |
Mature product (check availability) |
| Manufacturer |
Rochester Electronics (authorized source) |
| Testing |
100% electrical testing |
Reliability Specifications
- Configuration Cycles: Unlimited reprogramming capability
- Data Retention: 20+ years at room temperature
- ESD Protection: Built-in protection on all pins
- Latch-Up Immunity: CMOS latch-up resistant design
Comparison with Related Xilinx FPGAs
XC3000 Family Comparison Table
| Part Number |
Logic Gates |
CLBs |
I/O Pins |
Package |
Best For |
| XC3042A |
1,800 |
144 |
64-96 |
Multiple |
Small designs |
| XC3064A |
2,500 |
224 |
80-120 |
Multiple |
Medium designs |
| XC3090A |
3,000 |
320 |
96-144 |
Multiple |
Standard apps |
| XC3195-4PQ160C |
7,500 |
484 |
138 |
160-PQFP |
High-density |
Installation and Implementation
Design Flow Overview
- Schematic Entry/HDL Coding: Create design using Verilog, VHDL, or schematic capture
- Functional Simulation: Verify logic functionality before synthesis
- Synthesis: Convert high-level design to gate-level netlist
- Implementation: Place and route components on FPGA fabric
- Timing Analysis: Verify timing constraints are met
- Configuration File Generation: Create bitstream for programming
- Device Programming: Load configuration into XC3195-4PQ160C
- Testing and Validation: Verify in-circuit operation
PCB Design Considerations
| Design Aspect |
Recommendation |
| Power Supply Decoupling |
0.1µF ceramic caps near each VCC pin |
| Ground Plane |
Solid ground plane recommended |
| Signal Integrity |
Controlled impedance for high-speed signals |
| Thermal Management |
Adequate copper pour for heat dissipation |
| Configuration Interface |
JTAG header for easy programming |
Frequently Asked Questions
What makes the XC3195-4PQ160C suitable for digital design?
The XC3195-4PQ160C offers 7,500 logic gates and 484 configurable logic blocks, providing substantial resources for medium to complex digital designs. Its 227 MHz operating frequency enables high-speed applications, while unlimited reprogrammability allows iterative design refinement.
Is the XC3195-4PQ160C compatible with modern development tools?
While originally designed for Xilinx’s XACT development system, the XC3195-4PQ160C can be programmed using ISE Design Suite (legacy version). Modern Vivado tools do not support XC3000 series devices, so designers should use ISE version 14.7 or earlier.
What voltage levels does this FPGA support?
The XC3195-4PQ160C operates on a 5V power supply and features 5V-tolerant I/O pins, making it compatible with TTL and 5V CMOS logic levels. This simplifies interfacing with legacy systems and industrial control equipment.
How do I configure the XC3195-4PQ160C?
The device supports multiple configuration modes including Master Serial/Parallel (reading from external PROM), Slave mode (programmed by external controller), and JTAG boundary scan for development and testing purposes.
What is the difference between XC3195 and XC3195A?
The XC3195A is an enhanced version featuring additional interconnect resources, improved routing architecture, error checking capabilities, and a more advanced CMOS process. The XC3195-4PQ160C is part of the original XC3195 family.
Purchasing and Availability
Where to Buy XC3195-4PQ160C
The XC3195-4PQ160C is available through authorized distributors including:
- DigiKey Electronics: Leading electronic components distributor
- Rochester Electronics: Authorized manufacturer and lifetime buy program
- Other authorized distributors: Various regional suppliers
Package and Ordering Information
| Order Code |
Package |
Temperature Range |
Speed Grade |
| XC3195-4PQ160C |
160-Pin PQFP |
Commercial (0°C to 70°C) |
-4 (Standard) |
Important Purchasing Notes
- Verify current availability as XC3000 series is a mature product line
- Consider lead times for specialized speed/temperature grades
- Rochester Electronics offers extended lifecycle support
- Request Certificate of Conformance for critical applications
Conclusion: Why Choose XC3195-4PQ160C
The XC3195-4PQ160C FPGA represents a proven solution for engineers requiring a reliable, high-performance programmable logic device. With its robust 7,500-gate capacity, 227 MHz operating frequency, and comprehensive development tool support, this FPGA delivers excellent value for industrial, commercial, and prototyping applications.
Whether you’re developing legacy system replacements, industrial automation controllers, or custom digital signal processing solutions, the XC3195-4PQ160C provides the flexibility, performance, and reliability needed for successful project completion. Its 5V operation and extensive I/O capabilities make it particularly well-suited for interfacing with existing industrial and control systems.
Key Takeaways
- High Integration: 7,500 gates and 484 CLBs for complex designs
- Fast Performance: 227 MHz system clock with low logic delays
- Flexible Configuration: Multiple programming modes supported
- Proven Reliability: Mature product with extensive field history
- Design Freedom: Unlimited reprogramming for iterative development
- Industry Standard: Part of Xilinx’s legendary FPGA family
For detailed technical specifications, datasheets, and application notes, consult the official Xilinx documentation or contact authorized distributors for the latest availability and pricing information.
