The AMD XC2S50-5TQG144I is a high-performance Field Programmable Gate Array (FPGA) from the renowned Spartan-II family. This industrial-grade programmable logic device delivers exceptional flexibility, reliability, and cost-effectiveness for digital design applications ranging from embedded systems to telecommunications equipment.
XC2S50-5TQG144I Technical Specifications
| Parameter |
Specification |
| Manufacturer |
AMD (Xilinx) |
| Product Family |
Spartan-II FPGA |
| System Gates |
50,000 |
| Logic Cells |
1,728 |
| CLBs (Configurable Logic Blocks) |
384 |
| Maximum Frequency |
263 MHz |
| User I/O Pins |
92 |
| Supply Voltage (Core) |
2.5V |
| I/O Voltage Support |
1.5V, 2.5V, 3.3V |
| Package Type |
144-Pin TQFP |
| Package Dimensions |
20mm x 20mm |
| Process Technology |
0.18 µm |
| Operating Temperature |
-40°C to +85°C (Industrial) |
| Speed Grade |
-5 |
Key Features of the XC2S50-5TQG144I Spartan-II FPGA
Advanced Memory Architecture
The XC2S50-5TQG144I incorporates Xilinx’s SelectRAM™ hierarchical memory system, providing designers with versatile on-chip memory options:
| Memory Type |
Capacity |
Configuration |
| Block RAM |
32 Kbits |
4K-bit dual-port blocks |
| Distributed RAM |
24,576 bits |
16 bits per LUT |
| Total On-Chip Memory |
Up to 56 Kbits |
Configurable |
Clock Management with Delay-Locked Loops (DLLs)
The device features four dedicated DLLs positioned at each corner of the die, enabling:
- Zero propagation delay clock distribution
- Low clock skew across all logic elements
- Board-level clock deskewing capabilities
- Duty cycle correction functionality
- Clock multiplication and division options
Flexible I/O Standards Support
| I/O Standard |
Voltage Range |
Application |
| LVTTL |
3.3V |
General purpose |
| LVCMOS |
1.5V – 3.3V |
Low voltage systems |
| PCI |
3.3V |
PCI bus interface |
| SSTL |
2.5V |
DDR memory interface |
| GTL+ |
1.5V |
High-speed signaling |
| HSTL |
1.5V |
QDR memory interface |
XC2S50-5TQG144I Pin Configuration
Power Supply Pins
| Pin Category |
Description |
| VCCINT |
2.5V internal core supply |
| VCCAUX |
Auxiliary power for DLLs and configuration |
| VCCO |
I/O bank output voltage (bank-specific) |
| GND |
Ground reference |
Configuration Interface Pins
| Pin Name |
Function |
| CCLK |
Configuration clock |
| PROGRAM_B |
Active-low program initiation |
| INIT_B |
Initialization status indicator |
| DONE |
Configuration complete flag |
| DIN |
Serial configuration data input |
| DOUT |
Serial configuration data output |
JTAG Boundary Scan Pins
| Pin |
Function |
| TCK |
Test clock input |
| TDI |
Test data input |
| TDO |
Test data output |
| TMS |
Test mode select |
Spartan-II FPGA Architecture Overview
Configurable Logic Block (CLB) Structure
Each CLB in the XC2S50-5TQG144I contains two slices, with each slice providing:
- Two 4-input Look-Up Tables (LUTs)
- Two dedicated flip-flops/latches
- Carry logic for arithmetic operations
- Multiplexer resources for wide-input functions
- Cascade chain support for efficient function expansion
I/O Bank Organization
The XC2S50-5TQG144I organizes its I/O pins into 8 independent banks (Bank 0 through Bank 7), allowing:
- Different VCCO voltages per bank
- Mixed I/O standard support
- Flexible voltage-level interfacing
- Optimized signal integrity management
Application Areas for the XC2S50-5TQG144I
Embedded Systems Development
The XC2S50-5TQG144I excels in embedded applications requiring:
- Custom peripheral implementation
- Real-time processing capabilities
- Rapid prototyping flexibility
- Field-upgradable logic functions
Industrial Automation and Control
Ideal for factory automation systems including:
- Motion control interfaces
- Smart sensor data processing
- Custom state machine implementation
- Industrial communication protocols
Telecommunications Equipment
Well-suited for telecom applications such as:
- Signal processing modules
- Protocol conversion interfaces
- Data routing and switching
- Clock recovery circuits
Consumer Electronics
Cost-effective solution for:
- Video processing applications
- Audio interface controllers
- Display timing generators
- Game controller interfaces
Configuration Modes
The XC2S50-5TQG144I supports multiple configuration methods:
| Mode |
Description |
Application |
| Master Serial |
FPGA generates CCLK, reads from serial PROM |
Single-device systems |
| Slave Serial |
External CCLK, serial data input |
Daisy-chain configurations |
| Slave Parallel |
8-bit parallel data, external clock |
Microprocessor-controlled |
| Boundary Scan |
JTAG-based configuration |
Development and debugging |
Development Tools and Software Support
Xilinx ISE Design Suite
The XC2S50-5TQG144I is fully supported by Xilinx ISE software, providing:
- Schematic and HDL design entry
- Synthesis optimization
- Automatic place and route
- Timing analysis and verification
- Simulation and debugging tools
Design Resources
Engineers working with this Xilinx FPGA have access to:
- Comprehensive datasheet documentation
- Reference designs and application notes
- Development board support
- Technical support channels
Part Number Breakdown: XC2S50-5TQG144I
| Code Segment |
Meaning |
| XC2S |
Spartan-II FPGA family |
| 50 |
50,000 system gates |
| -5 |
Speed grade 5 (standard) |
| TQ |
Thin Quad Flat Pack |
| G |
Pb-free (RoHS compliant) |
| 144 |
144-pin package |
| I |
Industrial temperature range |
Ordering Information
| Part Number |
Temperature Range |
Package |
Lead-Free |
| XC2S50-5TQG144I |
-40°C to +85°C |
144-TQFP |
Yes |
| XC2S50-5TQG144C |
0°C to +85°C |
144-TQFP |
Yes |
| XC2S50-6TQG144I |
-40°C to +85°C |
144-TQFP |
Yes |
| XC2S50-6TQG144C |
0°C to +85°C |
144-TQFP |
Yes |
Equivalent and Alternative FPGAs
When considering alternatives to the XC2S50-5TQG144I, designers may evaluate:
| Alternative Part |
Family |
Gate Count |
Notes |
| XC2S100-5TQG144I |
Spartan-II |
100K |
Higher density option |
| XC3S200-4FTG256C |
Spartan-3 |
200K |
Next generation upgrade |
| XC6SLX9-2TQG144C |
Spartan-6 |
9K LC |
Modern low-power alternative |
Quality and Compliance
The XC2S50-5TQG144I meets stringent quality standards:
- RoHS Compliant: Lead-free packaging (G suffix)
- IEEE 1149.1: Full boundary scan support
- PCI Compliant: 3.3V PCI interface compatible
- Industrial Grade: Extended temperature operation
Summary
The AMD XC2S50-5TQG144I Spartan-II FPGA provides an optimal balance of performance, features, and cost for a wide range of programmable logic applications. With 50,000 system gates, 1,728 logic cells, integrated block RAM, four DLLs, and support for 16 I/O standards, this industrial-grade device delivers the flexibility engineers need for successful digital designs.
Whether implementing custom logic functions, developing embedded systems, or creating telecommunications equipment, the XC2S50-5TQG144I offers the reliability and versatility that modern electronic designs demand.
