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AMD XC2S50-5PQ208C
- Part No.:
- XC2S50-5PQ208C
- Manufacturer:
- AMD
- Category:
- FPGAs (Field Programmable Gate Array)
- Package:
- 208-BFQFP
- Datasheet:
-
XC2S50-5PQ208C.pdf
- Description:
- IC FPGA 140 I/O 208QFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,063
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Product details
Overview
XC2S50-5PQ208C from AMD (formerly Xilinx) is a Spartan-II family FPGA with 50,000 system gates, 176 user I/Os, and a 5 ns CLB delay, packaged in a 208-pin PQFP. It implements configurable logic for digital signal processing, interface bridging, and control logic in industrial PLCs and communication line cards.
For engineers reviewing the XC2S50-5PQ208C datasheet, pinout, applications, or equivalent options, key selection factors include I/O count, CLB timing grade, configuration mode support (Master Serial, Slave Parallel), and QFP thermal profile compatibility with legacy PCB reflow processes.
Technical Context
The XC2S50-5PQ208C integrates 1,728 configurable logic blocks (CLBs), each with two 4-input LUTs and flip-flops, and supports distributed RAM and shift register functionality per CLB. It uses SelectI/O™ technology to support 3.3 V LVTTL, LVCMOS, and PCI I/O standards with programmable slew rate and drive strength.
Configuration is performed via serial PROM (Master Serial mode) or parallel data bus (Slave Parallel mode), with internal startup sequence controlling INIT, PROGRAM, and DONE signals. The device requires external 3.3 V VCCINT and VCCO supplies, with dedicated power pins per I/O bank.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Capacity | 50,000 system gates - defines maximum combinational logic density for gate-equivalent synthesis |
| CLB Count | 1,728 CLBs - determines parallel logic resource availability for pipelined or parallelized functions |
| Max I/O Pins | 176 user I/Os - supports high-pin-count interface bridging without external glue logic |
| CLB Propagation Delay | 5 ns - sets worst-case path timing budget for synchronous logic operating up to ~160 MHz |
| I/O Standards | LVTTL/LVCMOS/PCI - enables direct connection to legacy microcontrollers, FPGAs, and peripheral ICs |
| Configuration Mode | Master Serial & Slave Parallel - allows flexible boot architecture using serial PROM or host processor |
Pinout & Package
Package: 208-pin Plastic Quad Flat Pack (PQFP), 28 × 28 mm body, 0.5 mm lead pitch, JEDEC MS-026AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND / VCC | Power supply reference / core & I/O supply | Dedicated power/ground pairs per quadrant minimize switching noise and ensure stable rail integrity |
| IO_Lxx | User-configurable bidirectional I/O | Each supports programmable pull-up, slew rate, and drive strength (2–24 mA) |
| CLKIN | Primary global clock input | Connects to internal global clock network with low skew to all CLBs and IOBs |
| PROGRAM_B | Active-low configuration reset | Forces device into configuration reload state; asynchronous to user logic |
| DONE | Configuration completion indicator | Open-drain output signals successful bitstream load and readiness for user operation |
Key Features
| Feature | Design Value |
|---|---|
| Configurable Logic Blocks (CLBs) | 1,728 CLBs with dual 4-LUTs + flip-flops enable efficient implementation of arithmetic, state machines, and datapaths |
| SelectI/O™ Technology | Per-bank I/O voltage assignment (3.3 V only) and programmable drive/slew allow mixed-signaling on single board |
| Distributed RAM | Up to 16 bits per CLB used as fast synchronous RAM without block RAM resources |
| Global Clock Network | Four dedicated low-skew clock lines reduce clock distribution jitter and simplify timing closure |
Applications
| Industrial Motion Control | Telecom Line Card Interface |
|---|---|
Use Scenario: Real-time servo loop coordination and encoder signal decoding in CNC machine controllers. IC Role / Device Role / Timing Role: FPGA fabric executes deterministic position interpolation and PWM generation with sub-microsecond latency. Use Value: 176 I/Os route encoder A/B/Z, limit switches, and analog feedback while 5 ns CLB delay ensures tight control loop timing. | Use Scenario: Protocol translation between T1/E1 framers and backplane buses in access multiplexers. IC Role / Device Role / Timing Role: Configurable logic bridges TIU, HDLC, and SPI interfaces with precise bit-level timing alignment. Use Value: SelectI/O™ supports simultaneous 3.3 V LVTTL and PCI signaling, eliminating level-shifter ICs on dense line cards. |
| Automated Test Equipment (ATE) | Legacy System Emulation |
Use Scenario: Pin electronics channel control and pattern memory addressing in semiconductor test handlers. IC Role / Device Role / Timing Role: XC2S50-5PQ208C implements high-speed digital pattern sequencers and DUT interface state machines. Use Value: Master Serial configuration enables field-upgradable test vectors without board redesign or JTAG dependency. | Use Scenario: Replacement of obsolete PAL/GAL devices in avionics maintenance test sets with long-lifecycle requirements. IC Role / Device Role / Timing Role: Replicates fixed-function logic using behavioral HDL, preserving original timing and pinout where possible. Use Value: 208-pin PQFP footprint matches legacy socketed PLDs, enabling drop-in replacement with minimal adapter board changes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FPGA-based logic implementation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XC2S50-6PQ208C | Same logic resources, but 6 ns CLB delay grade (slower speed grade) | Lower maximum clock frequency; suitable for cost-sensitive, non-critical timing paths | Select when timing裕度 > 15% is available and BOM cost reduction is prioritized over performance headroom |
| XC3S50-4PQ208C | Spartan-3 family; higher density (1,728 logic cells vs. CLBs), added block RAM and DSP slices | Supports embedded memory and multiply-accumulate operations not available in Spartan-II | Choose for new designs requiring integrated RAM or arithmetic acceleration; not pin-compatible with XC2S50-5PQ208C |
Compared with XC2S50-6PQ208C, the XC2S50-5PQ208C delivers tighter timing margins for high-speed control loops; compared with XC3S50-4PQ208C, it offers proven reliability in legacy thermal and reflow profiles but lacks embedded memory resources.
Availability
XC2S50-5PQ208C is available at Aetrix Electronics and suitable for industrial motion control, telecom line card interface, and automated test equipment requiring stable component supply across extended product lifecycles.
Supply support for XC2S50-5PQ208C 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 for industrial and aerospace customers requiring long-term supply assurance.
The Spartan-II family was designed for cost-effective, high-volume logic replacement in systems where predictable timing, mature toolchain support, and QFP manufacturability were critical.
FAQ
What is the maximum operating frequency supported by the XC2S50-5PQ208C?
The XC2S50-5PQ208C has a 5 ns CLB propagation delay, enabling synchronous logic operation up to approximately 160 MHz under typical conditions. Actual achievable frequency depends on design topology, routing congestion, and I/O timing constraints. The XC2S50-5PQ208C datasheet specifies worst-case Tco and Tsu values for precise static timing analysis.
Does the XC2S50-5PQ208C support JTAG boundary-scan testing?
Yes, the XC2S50-5PQ208C includes IEEE 1149.1-compliant JTAG TAP controller for boundary-scan testing, programming, and debugging. Pins TDI, TDO, TMS, and TCK are dedicated for this function and operate independently of user I/O configuration. This capability is fully supported in Xilinx ISE software for the XC2S50-5PQ208C.
Can the XC2S50-5PQ208C be configured using an external microcontroller?
Yes, the XC2S50-5PQ208C supports Slave Parallel configuration mode, allowing an external microcontroller to load the configuration bitstream through its 8-bit or 16-bit data bus. Control signals such as WRITE, CCLK, and PROGRAM_B must be driven per the XC2S50-5PQ208C timing specifications during initialization.
What power supply voltages does the XC2S50-5PQ208C require?
The XC2S50-5PQ208C requires two separate 3.3 V supplies: VCCINT for core logic (CLBs, interconnect) and VCCO for I/O banks. Both rails must be well-decoupled with low-ESR capacitors near the 208-pin PQFP package. The XC2S50-5PQ208C does not support internal voltage regulation or multi-voltage I/O banking.
Is the XC2S50-5PQ208C RoHS compliant?
The XC2S50-5PQ208C is available in both RoHS-compliant (lead-free) and non-RoHS versions. The "C" suffix denotes commercial temperature grade (0°C to 70°C); RoHS status is indicated by a "G" or "LF" suffix in the full ordering part number. Always verify the specific date code and packaging marking for RoHS compliance when ordering the XC2S50-5PQ208C.
XC2S50-5PQ208C 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)
XC2S50-5PQ208C FAQ
1.How can I place an order for XC2S50-5PQ208C through Aetrix?
Please submit a Request for Quotation (RFQ) for XC2S50-5PQ208C 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 XC2S50-5PQ208C reliable?
The price and inventory of XC2S50-5PQ208C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XC2S50-5PQ208C is usually 5 days.
3.What payment methods are accepted for XC2S50-5PQ208C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XC2S50-5PQ208C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XC2S50-5PQ208C?
XC2S50-5PQ208C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XC2S50-5PQ208C 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 XC2S50-5PQ208C?
For technical support, including XC2S50-5PQ208C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XC2S50-5PQ208C requirements.
6.How does Aetrix verify that XC2S50-5PQ208C is sourced from the original manufacturer or authorized distributors?
All XC2S50-5PQ208C 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 XC2S50-5PQ208C meets industry standards.
7.What is the process for return or replacement of XC2S50-5PQ208C?
All XC2S50-5PQ208C units undergo pre-shipment inspection (PSI). If there is an issue with XC2S50-5PQ208C, 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 XC2S50-5PQ208C part is unused and in its original packaging.
Return procedure for XC2S50-5PQ208C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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