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AMD XC2S50-6PQG208C
- Part No.:
- XC2S50-6PQG208C
- Manufacturer:
- AMD
- Category:
- FPGAs (Field Programmable Gate Array)
- Package:
- 208-BFQFP
- Datasheet:
-
XC2S50-6PQG208C.pdf
- Description:
- IC FPGA 140 I/O 208QFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,161
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Product details
Overview
XC2S50-6PQG208C from AMD (formerly Xilinx) is a Spartan-II family FPGA with 50,000 system gates, 176 user I/Os, and a 6 ns logic delay. It features configurable logic blocks (CLBs), distributed RAM, and dedicated carry logic, deployed in industrial control logic and digital signal preprocessing systems.
For engineers reviewing the XC2S50-6PQG208C datasheet, pinout, applications, or equivalent options, key selection factors include I/O count, logic density, speed grade (-6), and PQG208 package compatibility for legacy board reuse and reprogramming support.
Technical Context
The XC2S50-6PQG208C implements a fine-grained architecture with 1,728 configurable logic blocks (CLBs), each containing two 4-input LUTs and flip-flops. It supports synchronous SRAM-based configuration via JTAG or master serial mode using external PROM.
It includes up to 176 user-dedicated I/O pins with programmable slew rate, drive strength (2–24 mA), and input hysteresis. Configuration memory is volatile and requires external bitstream loading at power-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Capacity | 50,000 system gates - defines maximum combinational logic complexity supported |
| Speed Grade | -6 - guarantees 6 ns CLB propagation delay under specified conditions |
| User I/O Count | 176 - number of bidirectional, banked, and voltage-programmable I/O pins |
| Configuration Mode | Master Serial / JTAG - determines boot method and programming interface dependency |
| VCCINT | 2.5 V ± 5% - core logic supply voltage; requires dedicated low-noise regulation |
| VCCO Range | 1.5 V to 3.3 V - per-bank I/O voltage setting enables mixed-voltage interfacing |
Pinout & Package
PQG208 is a 208-pin plastic quad flat pack (PQFP) with 0.5 mm pitch, lead-free (Pb-free) finish, and 28 × 28 mm body size. Thermal pad is not present; thermal management relies on PCB copper area and airflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GCK0–GCK3 | Global Clock Input | Dedicated low-skew routing to all CLBs; required for synchronous timing domains |
| PROGRAM_B | Configuration Initiate | Active-low asynchronous reset that clears configuration memory and restarts load sequence |
| DONE | Configuration Status | Open-drain output indicating successful bitstream loading and initialization completion |
| TCK/TMS/TDI/TDO | JTAG Boundary Scan | IEEE 1149.1-compliant test and programming interface; no external pull-ups required |
| IO_LxxN/IO_LxxP | User I/O Bank Pair | Differential-capable pairs supporting LVDS/LVPECL when terminated and biased correctly |
Key Features
| Feature | Design Value |
|---|---|
| Configurable Logic Blocks (CLBs) | 1,728 CLBs provide deterministic timing and predictable resource mapping for registered logic |
| Distributed RAM | Each CLB offers 16-bit dual-port RAM - enables small FIFOs and state storage without block RAM |
| SelectI/O Technology | Per-bank voltage selection (1.5 V–3.3 V) allows direct interfacing with multiple logic families |
| Dedicated Carry Chain | Fast arithmetic path across CLBs - improves adder/subtractor performance over LUT-based chains |
Applications
| Industrial Motion Control | Legacy Test Equipment Interface |
|---|---|
Use Scenario: Real-time servo loop coordination in multi-axis CNC controllers requiring deterministic latency. IC Role / Device Role / Timing Role: FPGA fabric implements position interpolation, PWM generation, and encoder feedback decoding. Use Value: 6 ns speed grade ensures sub-microsecond logic response critical for closed-loop stability. | Use Scenario: Adapting GPIB-to-parallel bridging in aging ATE platforms where ASICs are obsolete. IC Role / Device Role / Timing Role: Reconfigurable glue logic synchronizes legacy bus protocols and buffers handshake signals. Use Value: 176 I/Os support full 16-bit data + 8-bit control bus mapping without multiplexing. |
| Automotive Diagnostic Module | Medical Imaging Preprocessing |
Use Scenario: OBD-II protocol translation and CAN message filtering in vehicle service tools. IC Role / Device Role / Timing Role: State-machine-based protocol parser with parallel bit-level inspection of incoming frames. Use Value: Volatile configuration allows field updates to support new ECU variants without hardware change. | Use Scenario: Pixel reordering and histogram binning prior to ADC digitization in portable ultrasound units. IC Role / Device Role / Timing Role: Pipeline-oriented datapath processes 8-bit grayscale streams at 25 MHz pixel clock. Use Value: Distributed RAM per CLB enables on-the-fly histogram accumulation without external memory access. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FPGA logic replacement applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XC2S50-5PQ208C | Slower -5 speed grade (7.5 ns CLB delay); same logic resources and I/O count | Suitable for non-critical timing paths where 1.5 ns margin is acceptable | Select only if timing closure is achieved and cost reduction is prioritized over performance headroom |
| XC3S50A-4VQG100C | Smaller 100-pin VQFP package; Spartan-3A architecture with higher density efficiency but no backward-compatible bitstream | Requires PCB redesign and full HDL re-synthesis; better for new designs targeting lower power | Use for new projects needing improved static power and integrated multipliers; not for drop-in replacement |
Compared with XC2S50-6PQG208C, the -5PQ208C trades speed for cost in legacy systems, while the XC3S50A-4VQG100C offers architectural upgrades at the expense of pinout and configuration incompatibility - making the former a timing-margin alternative and the latter a next-generation migration path.
Availability
XC2S50-6PQG208C is available at Aetrix Electronics and suitable for industrial motion control, legacy test equipment interface, and automotive diagnostic module applications requiring stable component supply and long-term obsolescence mitigation.
Supply support for XC2S50-6PQG208C includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
AMD acquired Xilinx in 2022 and maintains legacy Spartan-II product support, including documentation, software tool compatibility (ISE 14.7), and controlled distribution channels.
The Spartan-II family was designed for cost-sensitive, high-volume embedded logic replacement - emphasizing fast time-to-market, simple configuration, and broad I/O flexibility in industrial and communications edge systems.
FAQ
What is the configuration method supported by XC2S50-6PQG208C?
The XC2S50-6PQG208C supports Master Serial and JTAG configuration modes. In Master Serial mode, it loads configuration data from an external PROM upon power-up. JTAG mode enables in-system programming and boundary-scan testing using IEEE 1149.1-compliant tools. Both methods are fully supported in Xilinx ISE 14.7, and the XC2S50-6PQG208C does not support slave parallel or SelectMAP modes.
Does XC2S50-6PQG208C support differential I/O standards like LVDS?
Yes, the XC2S50-6PQG208C supports LVDS signaling through its IO_LxxN/IO_LxxP pin pairs when properly terminated and biased, though it lacks internal differential termination resistors. External 100 Ω resistors and appropriate VREF must be provided. The XC2S50-6PQG208C does not support LVPECL directly due to voltage level constraints but can interface via level-shifting circuits.
What is the maximum operating junction temperature for XC2S50-6PQG208C?
The XC2S50-6PQG208C has a maximum junction temperature of 100 °C under continuous operation, as specified in the Spartan-II DC and Switching Characteristics datasheet (DS001-6). This rating assumes proper PCB thermal design with ≥2 oz copper layers and adequate airflow; derating applies above 85 °C ambient.
Is XC2S50-6PQG208C RoHS compliant?
Yes, the XC2S50-6PQG208C is RoHS compliant and lead-free, as confirmed by AMD's Product Change Notification (PCN) #X-0507-01. The "G" suffix in PQG208 explicitly denotes green (halogen-free, Pb-free) packaging, and the device meets EU Directive 2011/65/EU requirements without exemptions.
Can XC2S50-6PQG208C be reprogrammed in-system after soldering?
Yes, the XC2S50-6PQG208C supports in-system programming via its JTAG port, allowing full configuration bitstream updates without removal from the PCB. Reprogramming requires a compatible JTAG cable (e.g., Xilinx Platform Cable USB) and ISE 14.7 software. The XC2S50-6PQG208C retains no configuration state during power loss and must be reloaded at each power cycle.
XC2S50-6PQG208C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- AMD
- Series:
- Spartan®-II
- Package/Case:
- 208-BFQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Number of LABs/CLBs:
- 384
- Number of Logic Elements/Cells:
- 1728
- Total RAM Bits:
- 32768
- Number of I/O:
- 140
- Number of Gates:
- 50000
- Voltage - Supply:
- 2.375V ~ 2.625V
- Mounting Type:
- Surface Mount
- Operating Temperature:
- 0°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 208-PQFP (28x28)
XC2S50-6PQG208C FAQ
1.How can I place an order for XC2S50-6PQG208C through Aetrix?
Please submit a Request for Quotation (RFQ) for XC2S50-6PQG208C on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for XC2S50-6PQG208C reliable?
The price and inventory of XC2S50-6PQG208C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XC2S50-6PQG208C is usually 5 days.
3.What payment methods are accepted for XC2S50-6PQG208C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XC2S50-6PQG208C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XC2S50-6PQG208C?
XC2S50-6PQG208C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XC2S50-6PQG208C order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for XC2S50-6PQG208C?
For technical support, including XC2S50-6PQG208C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XC2S50-6PQG208C requirements.
6.How does Aetrix verify that XC2S50-6PQG208C is sourced from the original manufacturer or authorized distributors?
All XC2S50-6PQG208C products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that XC2S50-6PQG208C meets industry standards.
7.What is the process for return or replacement of XC2S50-6PQG208C?
All XC2S50-6PQG208C units undergo pre-shipment inspection (PSI). If there is an issue with XC2S50-6PQG208C, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The XC2S50-6PQG208C part is unused and in its original packaging.
Return procedure for XC2S50-6PQG208C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
XC2S50-6PQG208C Tags
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