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AMD XC2S50-6PQ208C
- Part No.:
- XC2S50-6PQ208C
- Manufacturer:
- AMD
- Category:
- FPGAs (Field Programmable Gate Array)
- Package:
- 208-BFQFP
- Datasheet:
-
XC2S50-6PQ208C.pdf
- Description:
- IC FPGA 140 I/O 208QFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,542
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Product details
Overview
XC2S50-6PQ208C from AMD (formerly Xilinx) is a Spartan-II family FPGA with 50,000 system gates, 176 user I/Os, and configured in a 208-pin PQFP package. It features 1,472 logic cells, 288 Kbits of block RAM, and supports 3.3V I/O with 2.5V core voltage for embedded control and interface bridging applications.
For engineers reviewing the XC2S50-6PQ208C datasheet, pinout, applications, or equivalent options, key selection criteria include logic density, I/O count, RAM depth, speed grade (-6), and QFP thermal/mechanical compatibility in space-constrained industrial controllers.
Technical Context
The XC2S50-6PQ208C implements configurable logic blocks (CLBs) with four-input LUTs and flip-flops, supporting synchronous design with global clock routing and up to eight dedicated clock inputs. Its SelectIO technology enables programmable slew rate, drive strength, and PCI-compliant 3.3V signaling.
Configuration is performed via serial mode using an external PROM or master processor through the JTAG boundary-scan interface. The device supports IEEE 1149.1 compliance and in-system programming without requiring power cycle.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Gates | 50,000 system gates - defines maximum combinational logic capacity for medium-complexity glue logic or protocol translation. |
| Logic Cells | 1,472 CLBs - each contains two function generators and two storage elements, enabling pipelined datapath implementation. |
| User I/O Pins | 176 - supports high-pin-count peripheral interfacing with configurable voltage standards and termination. |
| Block RAM | 288 Kbits - organized as 72 × 4K-bit blocks, usable as dual-port FIFOs or small on-chip memory buffers. |
| Speed Grade | -6 - guarantees 6 ns CLB propagation delay and 125 MHz system clock operation under worst-case conditions. |
| Core Voltage | 2.5 V ± 0.1 V - requires dedicated low-noise core regulator; not compatible with 3.3 V or 1.8 V core supplies. |
| I/O Voltage | 3.3 V - supports LVTTL, LVCMOS33, and PCI signaling without level shifters. |
Pinout & Package
XC2S50-6PQ208C is housed in a 208-pin Plastic Quad Flat Pack (PQFP) with 0.5 mm lead pitch, 28 × 28 mm body size, and standard JEDEC MO-137AC footprint. Thermal performance supports ≤70°C ambient operation with natural convection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GCK0–GCK7 | Dedicated Global Clock Input | Eight low-skew clock networks drive all CLBs and I/Os; essential for synchronous timing closure. |
| PROGRAM_B | Active-Low Configuration Initiate | Pulls low to reset configuration logic and reload bitstream from external PROM or processor. |
| TCK/TMS/TDI/TDO | JTAG Boundary-Scan Interface | Enables IEEE 1149.1-compliant testing, debugging, and in-system programming. |
| HSWAP_EN | Hot-Swap Enable Control | When pulled high, enables weak pull-up on I/O pins during power-up to prevent floating states. |
| VCCO_0–VCCO_7 | I/O Bank Power Supply | Eight independent 3.3 V supplies allow mixed-voltage I/O interfaces across different banks. |
Key Features
| Feature | Design Value |
|---|---|
| Configurable Logic Blocks (CLBs) | 1,472 CLBs with dual 4-LUTs + flip-flops per slice enable efficient arithmetic and state-machine implementation. |
| SelectIO Technology | Programmable drive strength (2–24 mA), slew rate control, and bus-hold circuitry reduce external termination components. |
| Embedded Block RAM | 72 × 4K-bit blocks support true dual-port read/write access for data buffering and lookup tables. |
| JTAG Boundary-Scan | Fully compliant with IEEE 1149.1 for production test, debug visibility, and field firmware updates. |
| Multi-Voltage I/O Banks | Eight independent VCCO banks permit simultaneous 3.3V, 2.5V, and 1.8V interface standards on same device. |
Applications
| Industrial Motion Controller | Legacy Bus Bridge |
|---|---|
Use Scenario: Real-time coordination of stepper/servo drives using encoder feedback and PWM generation. IC Role / Device Role / Timing Role: FPGA fabric implements closed-loop PID logic, pulse-width modulation, and quadrature decoding at microsecond latency. Use Value: 176 I/Os route position signals, limit switches, and drive enables; -6 speed grade ensures deterministic 100 kHz control loop timing. | Use Scenario: Interfacing RS-485 Modbus RTU devices to modern ARM-based HMI platforms. IC Role / Device Role / Timing Role: Protocol translator and physical layer adapter with configurable UART timing and parity handling. Use Value: Block RAM stores Modbus register maps; SelectIO supports 3.3V logic and failsafe biasing for noise-prone factory floors. |
| Test Equipment Pattern Generator | Medical Sensor Aggregator |
Use Scenario: Generating synchronized digital stimulus waveforms for PCB functional testing. IC Role / Device Role / Timing Role: High-speed pattern sequencer with precise edge placement and multi-channel skew calibration. Use Value: 208-pin PQFP provides dense signal routing; -6 speed grade delivers sub-10 ns timing resolution across 64 parallel outputs. | Use Scenario: Consolidating analog sensor inputs (ECG, SpO₂, temperature) into a single digital stream for wireless transmission. IC Role / Device Role / Timing Role: Digital front-end controller managing ADC sampling, FIR filtering, and packet framing. Use Value: Embedded RAM buffers 16-sample windows; configurable I/O accommodates both SPI ADCs and UART BLE modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FPGA-based interface and control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XC2S50-5PQ208C | Slower -5 speed grade (7 ns CLB delay); lower maximum clock frequency (110 MHz). | Suitable for cost-sensitive designs where 125 MHz timing margin is unnecessary. | Select when system timing budget allows relaxed setup/hold margins and lower power consumption is prioritized. |
| XC3S50-4PQ208C | Third-generation Spartan-3 architecture; higher logic density (1,728 slices), 72 Kbits distributed RAM, no block RAM. | Better suited for designs requiring more combinatorial logic but less on-chip memory. | Choose for new designs needing improved synthesis efficiency and lower static power, accepting different configuration method and toolchain. |
Compared with XC2S50-6PQ208C, the -5 variant trades speed for cost and power, while the XC3S50 offers denser logic and newer architecture but lacks block RAM-making XC2S50-6PQ208C preferable where on-chip memory and mature tool support are critical.
Availability
XC2S50-6PQ208C is available at Aetrix Electronics and suitable for industrial motion controllers, legacy bus bridges, test equipment pattern generators, and medical sensor aggregators requiring stable component supply across extended product lifecycles.
Supply support for XC2S50-6PQ208C 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, silicon supply, and cross-reference guidance for industrial and aerospace customers.
The Spartan-II family was designed for cost-effective, high-volume embedded control and interface bridging, targeting applications where predictable timing, mature toolchains, and long-term availability outweigh cutting-edge density or power efficiency.
FAQ
What is the core voltage requirement for XC2S50-6PQ208C?
The XC2S50-6PQ208C requires a regulated 2.5 V ± 0.1 V core supply. This voltage powers the internal logic array and CLBs. Using 3.3 V or 1.8 V on VCCINT will damage the device. External DC-DC converters with tight tolerance and low ripple are mandatory for reliable operation of the XC2S50-6PQ208C.
Does XC2S50-6PQ208C support in-system programming?
Yes, XC2S50-6PQ208C supports in-system programming via its JTAG TAP controller (TCK/TMS/TDI/TDO pins). Configuration bitstreams can be loaded dynamically by a host processor or updated remotely without removing the XC2S50-6PQ208C from the board or powering down the system.
How many clock inputs does XC2S50-6PQ208C provide?
XC2S50-6PQ208C provides eight dedicated global clock inputs (GCK0–GCK7), each driving a low-skew network across the entire device. These inputs feed the global clock buffers and support phase-aligned distribution to CLBs, I/Os, and block RAM-critical for meeting timing constraints in the XC2S50-6PQ208C.
Can XC2S50-6PQ208C operate with mixed I/O voltage standards?
Yes, XC2S50-6PQ208C supports mixed I/O standards through eight independent VCCO banks. Each bank can be powered at 3.3 V, enabling concurrent LVTTL, LVCMOS33, and PCI signaling. This capability eliminates level shifters in systems integrating heterogeneous peripherals connected to the XC2S50-6PQ208C.
Is XC2S50-6PQ208C still in active production?
XC2S50-6PQ208C is not in active wafer fabrication but remains available through authorized distributors and Aetrix Electronics' legacy component program. AMD/Xilinx continues to support datasheets, application notes, and cross-reference guidance for the XC2S50-6PQ208C under its long-term obsolescence mitigation policy.
XC2S50-6PQ208C 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)
XC2S50-6PQ208C FAQ
1.How can I place an order for XC2S50-6PQ208C through Aetrix?
Please submit a Request for Quotation (RFQ) for XC2S50-6PQ208C 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 XC2S50-6PQ208C reliable?
The price and inventory of XC2S50-6PQ208C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XC2S50-6PQ208C is usually 5 days.
3.What payment methods are accepted for XC2S50-6PQ208C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XC2S50-6PQ208C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XC2S50-6PQ208C?
XC2S50-6PQ208C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XC2S50-6PQ208C 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 XC2S50-6PQ208C?
For technical support, including XC2S50-6PQ208C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XC2S50-6PQ208C requirements.
6.How does Aetrix verify that XC2S50-6PQ208C is sourced from the original manufacturer or authorized distributors?
All XC2S50-6PQ208C 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 XC2S50-6PQ208C meets industry standards.
7.What is the process for return or replacement of XC2S50-6PQ208C?
All XC2S50-6PQ208C units undergo pre-shipment inspection (PSI). If there is an issue with XC2S50-6PQ208C, 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 XC2S50-6PQ208C part is unused and in its original packaging.
Return procedure for XC2S50-6PQ208C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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