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AMD XCS40XL-4PQG208C
- Part No.:
- XCS40XL-4PQG208C
- Manufacturer:
- AMD
- Category:
- FPGAs (Field Programmable Gate Array)
- Package:
- 208-BFQFP
- Datasheet:
-
XCS40XL-4PQG208C.pdf
- Description:
- IC FPGA 169 I/O 208QFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,262
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Product details
Overview
XCS40XL-4PQG208C from AMD (formerly Xilinx) is a Spartan-XL family FPGA with 40,000 system gates, 208-pin PQFP package, -4 speed grade, and commercial temperature range (0°C to 70°C). It integrates configurable logic blocks, I/O blocks, and interconnect resources for digital logic implementation in embedded control and interface bridging applications.
For engineers reviewing the XCS40XL-4PQG208C datasheet, pinout, applications, or equivalent options, key selection criteria include system gate count, I/O count (168 user I/Os), speed grade (-4), PQFP packaging, and commercial temperature rating.
Technical Context
The XCS40XL-4PQG208C implements a fine-grain, SRAM-based architecture with configurable logic cells and dedicated carry logic for arithmetic functions. It supports in-system programmability via JTAG boundary-scan and uses external configuration PROMs or microcontrollers for startup loading.
It features 168 user-configurable I/O pins with programmable slew rate and drive strength, and supports LVTTL and LVCMOS signaling standards. Configuration is volatile and requires reinitialization on power-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| System Gates | 40,000 - total logic capacity for combinational and sequential logic implementation |
| Speed Grade | -4 - maximum clock frequency of 125 MHz for internal logic paths |
| User I/O Pins | 168 - bidirectional, individually configurable for voltage standard and drive strength |
| Package | PQFP-208 - 28 × 28 mm body, 0.5 mm pitch, surface-mount compatible |
| Operating Temp | 0°C to +70°C - commercial-grade thermal envelope for non-industrial environments |
| Configuration | Volatile SRAM-based - requires external PROM or processor for power-on initialization |
Pinout & Package
PQFP-208 package with 208 leads, 0.5 mm pitch, and 28 mm × 28 mm body size. Pin 1 marked by corner notch or dot; power and ground distributed across multiple pins for noise reduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference | Multiple dedicated pins for analog/digital ground separation and low-impedance return paths |
| VCC | Core supply | 3.3 V ±5% for internal logic; decoupling required within 1 cm of each VCC pin |
| VCCO | I/O supply | 3.3 V or 5.0 V selectable per bank; determines output voltage level and input threshold |
| TCK/TMS/TDI/TDO | JTAG interface | IEEE 1149.1-compliant test access port for programming and boundary-scan verification |
| INIT/PROGRAM | Configuration control | Active-low signals managing configuration status and synchronous reload initiation |
Key Features
| Feature | Design Value |
|---|---|
| Configurable Logic Blocks (CLBs) | Provide flexible lookup-table (LUT)-based logic and flip-flop storage for custom state machines and datapaths |
| Dedicated Carry Chain | Enables high-speed arithmetic operations (e.g., counters, adders) without routing congestion |
| Programmable I/O Standards | Supports LVTTL and LVCMOS on same device; eliminates need for external level shifters in mixed-voltage systems |
| JTAG Boundary-Scan | Allows board-level testing and in-system programming without dedicated programming hardware |
Applications
| Industrial PLC I/O Module | Legacy Bus Interface Bridge |
|---|---|
Use Scenario: Replacing fixed-function ASICs in modular I/O expansion units for programmable logic controllers. IC Role / Device Role / Timing Role: Configurable glue logic and protocol translator between fieldbus (e.g., Profibus DP) and backplane parallel bus. Use Value: Enables firmware-upgradable I/O mapping and timing parameters without PCB redesign. | Use Scenario: Bridging ISA or PCI bus signals to modern microcontroller peripherals in retro-computing or test equipment upgrades. IC Role / Device Role / Timing Role: Synchronizing asynchronous legacy bus handshaking with synchronous MCU interfaces using programmable wait-state insertion. Use Value: Supports precise, cycle-accurate timing control for compatibility with timing-critical peripheral chips. |
| Medical Instrument Control Logic | Automated Test Equipment (ATE) Pattern Generator |
Use Scenario: Implementing safety-critical sequencing and sensor signal conditioning logic in portable diagnostic devices. IC Role / Device Role / Timing Role: Real-time state machine managing ADC sampling, LED display multiplexing, and button debouncing. Use Value: Provides deterministic sub-microsecond response latency with no software interrupt overhead. | Use Scenario: Generating synchronized multi-channel digital stimulus waveforms for IC functional validation. IC Role / Device Role / Timing Role: High-speed pattern sequencer with programmable edge alignment and repeat-loop control. Use Value: Delivers 125 MHz maximum toggle rate per I/O, enabling >100 Mbps vector throughput. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FPGA logic implementation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XCS30XL-4PQ208C | 30,000 system gates, identical PQFP-208 package and -4 speed grade | Lower gate count limits complex state machines and memory depth | Select when design fits within 30K gates and cost optimization is prioritized over headroom |
| XCS50XL-4PQ208C | 50,000 system gates, same package and speed grade | Higher gate density supports larger datapaths and deeper FIFOs | Choose when future scalability or integration of additional peripherals is required |
Compared with XCS30XL-4PQ208C and XCS50XL-4PQ208C, the XCS40XL-4PQG208C offers balanced gate count and pin compatibility within the Spartan-XL PQFP-208 family-enabling reuse of PCB layout while supporting mid-complexity control logic without over-provisioning.
Availability
XCS40XL-4PQG208C is available at Aetrix Electronics and suitable for industrial PLC modules, medical instrumentation, automated test equipment, and legacy interface bridge designs requiring stable component supply and long-term obsolescence management.
Supply support for XCS40XL-4PQG208C 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 now develops adaptive computing platforms including FPGAs, adaptive SoCs, and AI engines.
The Spartan-XL family was designed by Xilinx for cost-sensitive, high-volume embedded control and interface logic applications where non-volatility was not required but configurability and I/O flexibility were critical.
FAQ
What is the configuration method for XCS40XL-4PQG208C?
The XCS40XL-4PQG208C uses volatile SRAM-based configuration and must be loaded at power-up from an external serial PROM or microcontroller. It supports IEEE 1149.1 JTAG for programming and boundary-scan testing. The XCS40XL-4PQG208C does not include on-chip non-volatile memory and requires external configuration circuitry to operate.
Does XCS40XL-4PQG208C support hot-swap or live-insertion?
No, the XCS40XL-4PQG208C is not rated for hot-swap operation. Its I/O structure lacks bus-hold or powered-off protection circuitry, and applying signals before VCC stabilization may cause latch-up. The XCS40XL-4PQG208C must be powered in strict sequence: VCC first, then VCCO, with all inputs held inactive until power rails settle.
What I/O standards are supported by XCS40XL-4PQG208C?
The XCS40XL-4PQG208C supports LVTTL and LVCMOS I/O standards per bank, with VCCO set to either 3.3 V or 5.0 V. Input thresholds and output drive strengths are programmable per pin group. The XCS40XL-4PQG208C does not support SSTL, HSTL, or differential standards.
Is XCS40XL-4PQG208C pin-compatible with other Spartan-XL PQFP-208 devices?
Yes, the XCS40XL-4PQG208C shares identical pinout and package dimensions with other Spartan-XL devices in the PQFP-208 footprint, including XCS30XL-4PQ208C and XCS50XL-4PQ208C. This allows direct PCB substitution within the same speed grade and I/O bank configuration.
What is the maximum operating frequency of XCS40XL-4PQG208C?
The XCS40XL-4PQG208C has a -4 speed grade specifying a maximum internal logic frequency of 125 MHz under typical conditions. Actual achievable clock rates depend on design placement, routing, and I/O timing constraints. The XCS40XL-4PQG208C datasheet provides worst-case timing analysis tables for path-specific verification.
XCS40XL-4PQG208C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- AMD
- Series:
- Spartan®-XL
- Package/Case:
- 208-BFQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Number of LABs/CLBs:
- 784
- Number of Logic Elements/Cells:
- 1862
- Total RAM Bits:
- 25088
- Number of I/O:
- 169
- Number of Gates:
- 40000
- Voltage - Supply:
- 3V ~ 3.6V
- Mounting Type:
- Surface Mount
- Operating Temperature:
- 0°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 208-PQFP (28x28)
XCS40XL-4PQG208C FAQ
1.How can I place an order for XCS40XL-4PQG208C through Aetrix?
Please submit a Request for Quotation (RFQ) for XCS40XL-4PQG208C 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 XCS40XL-4PQG208C reliable?
The price and inventory of XCS40XL-4PQG208C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XCS40XL-4PQG208C is usually 5 days.
3.What payment methods are accepted for XCS40XL-4PQG208C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XCS40XL-4PQG208C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XCS40XL-4PQG208C?
XCS40XL-4PQG208C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XCS40XL-4PQG208C 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 XCS40XL-4PQG208C?
For technical support, including XCS40XL-4PQG208C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XCS40XL-4PQG208C requirements.
6.How does Aetrix verify that XCS40XL-4PQG208C is sourced from the original manufacturer or authorized distributors?
All XCS40XL-4PQG208C 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 XCS40XL-4PQG208C meets industry standards.
7.What is the process for return or replacement of XCS40XL-4PQG208C?
All XCS40XL-4PQG208C units undergo pre-shipment inspection (PSI). If there is an issue with XCS40XL-4PQG208C, 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 XCS40XL-4PQG208C part is unused and in its original packaging.
Return procedure for XCS40XL-4PQG208C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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