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AMD XCS40-3PQ208C
- Part No.:
- XCS40-3PQ208C
- Manufacturer:
- AMD
- Category:
- FPGAs (Field Programmable Gate Array)
- Package:
- 208-BFQFP
- Datasheet:
-
XCS40-3PQ208C.pdf
- Description:
- IC FPGA 169 I/O 208QFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,743
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Product details
Overview
XCS40-3PQ208C from AMD (formerly Xilinx) is a Spartan-XL family FPGA with 40,000 system gates, 208-pin PQFP package, 3.3 V I/O voltage, and -3 speed grade. It integrates configurable logic blocks, distributed RAM, and programmable interconnect for digital logic implementation in industrial control and communication interface designs.
For engineers reviewing the XCS40-3PQ208C datasheet, pinout, applications, or equivalent options, key selection factors include I/O count (176 user I/Os), maximum system clock frequency (90 MHz), internal RAM capacity (24 kbits), and compliance with IEEE 1149.1 JTAG boundary-scan test standard.
Technical Context
The XCS40-3PQ208C implements a fine-grained architecture with configurable logic cells (CLBs), input/output blocks (IOBs), and programmable interconnect resources. It supports synchronous design flows using VHDL or Verilog and includes dedicated carry logic for arithmetic functions.
Configuration is performed via serial mode using an external PROM or parallel mode through the CPU interface. The device supports in-system programming and features IEEE 1149.1-compliant boundary-scan testing for board-level verification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Capacity | 40,000 system gates - determines maximum combinational/sequential logic complexity implementable |
| User I/O Pins | 176 - supports high-density peripheral interfacing without external glue logic |
| Internal RAM | 24 kbits - enables small FIFOs, lookup tables, or state storage without external memory |
| Max Clock Frequency | 90 MHz - sets upper bound for synchronous logic operation in timing-critical paths |
| I/O Voltage | 3.3 V - compatible with LVTTL and LVCMOS33 signaling standards |
| Speed Grade | -3 - guarantees timing performance under worst-case commercial temperature and voltage conditions |
Pinout & Package
Package: 208-pin Plastic Quad Flat Pack (PQFP), 28 × 28 mm body, 0.5 mm lead pitch, JEDEC MO-137AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GCK0–GCK3 | Global Clock Input | Dedicated low-skew routing to all CLBs for synchronous system timing |
| TDI/TDO/TMS/TCK | JTAG Boundary-Scan Port | Enables IEEE 1149.1-compliant device programming and board-level test |
| PROGRAM_B | Configuration Initiate | Active-low signal that resets configuration logic and clears SRAM contents |
| HSWAP_EN | Hot-Swap Enable | Controls I/O weak pull-up during power-up to prevent bus contention |
| VCCO_0–VCCO_7 | I/O Bank Power | Separate 3.3 V supplies per I/O bank allow mixed-voltage interface support |
Key Features
| Feature | Design Value |
|---|---|
| Configurable Logic Blocks (CLBs) | Provide flexible, fine-grained logic implementation with flip-flops and look-up tables |
| Distributed RAM | 24 kbits of embedded RAM distributed across CLBs for efficient local storage |
| Programmable Interconnect | Full-routing matrix enabling predictable timing and high utilization efficiency |
| IEEE 1149.1 Boundary Scan | Supports JTAG-based device programming, debugging, and PCB test without physical probes |
| Multi-Voltage I/O Banks | Eight independent VCCO banks enable concurrent 3.3 V, 2.5 V, or 1.8 V interface operation |
Applications
| Industrial PLC Interface | Legacy Bus Bridge |
|---|---|
Use Scenario: Replacing fixed-function ASICs in programmable logic controller backplanes requiring field-upgradable I/O mapping. IC Role / Device Role / Timing Role: Configurable glue logic and protocol translator between microcontroller and fieldbus peripherals. Use Value: Enables reconfiguration of signal routing and timing without hardware redesign or component replacement. | Use Scenario: Bridging ISA or VMEbus peripherals to modern microprocessor subsystems in test equipment. IC Role / Device Role / Timing Role: Synchronous bus arbiter and address decoder with programmable wait-state generation. Use Value: Supports legacy timing requirements (e.g., 80 ns access) while integrating into newer control architectures. |
| Communications Protocol Handler | Embedded Control Sequencer |
Use Scenario: Implementing HDLC or UART framing logic in point-of-sale terminal baseboards. IC Role / Device Role / Timing Role: Bit-level serial protocol engine with CRC calculation and frame synchronization. Use Value: Offloads protocol processing from host MCU, reducing firmware complexity and interrupt load. | Use Scenario: Managing multi-stage power-up sequencing and fault monitoring in telecom line cards. IC Role / Device Role / Timing Role: State-machine-based sequencer with watchdog timer and status register readback. Use Value: Provides deterministic startup timing and real-time fault detection without software intervention. |
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 |
|---|---|---|---|
| XCS40-4PQ208C | Faster -4 speed grade (100 MHz max clock vs. 90 MHz); identical logic capacity and pinout | Suitable where tighter setup/hold margins or higher throughput are required | Select XCS40-4PQ208C only if timing closure fails with XCS40-3PQ208C in critical paths |
| XCS40-3TQ144C | Same speed grade and logic density but 144-pin TQFP package (112 user I/Os vs. 176) | Used in space-constrained designs where lower I/O count is acceptable | Choose XCS40-3TQ144C when board layout area is limited and full I/O count is not needed |
Compared with XCS40-4PQ208C and XCS40-3TQ144C, the XCS40-3PQ208C offers balanced performance and I/O density in a widely supported PQFP footprint, making it optimal for cost-sensitive industrial control boards requiring moderate gate count and high pin accessibility.
Availability
XCS40-3PQ208C is available at Aetrix Electronics and suitable for industrial automation, communications infrastructure, and embedded control applications requiring stable component supply and long-term obsolescence management.
Supply support for XCS40-3PQ208C 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 and supports the Spartan family of FPGAs for cost-optimized, high-volume applications.
The Spartan-XL product line was designed for non-volatile, high-reliability embedded logic replacement in industrial and communications systems where flash-based configuration and robust I/O are essential.
FAQ
What is the configuration method supported by the XCS40-3PQ208C?
The XCS40-3PQ208C supports both serial and parallel configuration modes. Serial configuration uses a master serial PROM (e.g., Xilinx XC18V02) connected to the DIN and CCLK pins. Parallel configuration allows direct loading via an 8-bit data bus using the DATA<7:0>, WRITE, and ADDRESS lines. The XCS40-3PQ208C does not support slave-serial or JTAG-only configuration.
Does the XCS40-3PQ208C include on-chip non-volatile memory?
No, the XCS40-3PQ208C is an SRAM-based FPGA and requires external configuration memory. It does not contain embedded flash or EEPROM. Configuration data is loaded at power-up from an external PROM or processor. The XCS40-3PQ208C retains no state when powered off, and its configuration must be reloaded each time.
What is the operating temperature range for the XCS40-3PQ208C?
The XCS40-3PQ208C is rated for commercial temperature operation from 0 °C to +70 °C ambient. It is not qualified for extended or industrial temperature ranges (–40 °C to +85 °C). Thermal derating is required above 70 °C, and sustained operation outside the specified range may cause configuration loss or timing violations in the XCS40-3PQ208C.
Can the XCS40-3PQ208C drive 5 V TTL inputs?
The XCS40-3PQ208C I/Os are 3.3 V tolerant but not 5 V capable. Its outputs swing between 0 V and 3.3 V, and inputs are not 5 V-tolerant unless explicitly marked as such in the IOB specification - which they are not for this device. Direct connection to 5 V TTL loads risks damage or incorrect logic levels. Level-shifting circuitry is required when interfacing with 5 V systems using the XCS40-3PQ208C.
Is JTAG boundary-scan supported on the XCS40-3PQ208C?
Yes, the XCS40-3PQ208C fully supports IEEE 1149.1 JTAG boundary-scan for device programming, emulation, and board-level testing. The TDI, TDO, TMS, and TCK pins are dedicated and electrically compliant. JTAG operation is functional across the full commercial temperature range and supports both configuration and debug access to the XCS40-3PQ208C internal logic resources.
XCS40-3PQ208C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- AMD
- Series:
- Spartan®
- 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:
- 4.75V ~ 5.25V
- Mounting Type:
- Surface Mount
- Operating Temperature:
- 0°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 208-PQFP (28x28)
XCS40-3PQ208C FAQ
1.How can I place an order for XCS40-3PQ208C through Aetrix?
Please submit a Request for Quotation (RFQ) for XCS40-3PQ208C 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 XCS40-3PQ208C reliable?
The price and inventory of XCS40-3PQ208C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XCS40-3PQ208C is usually 5 days.
3.What payment methods are accepted for XCS40-3PQ208C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XCS40-3PQ208C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XCS40-3PQ208C?
XCS40-3PQ208C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XCS40-3PQ208C 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 XCS40-3PQ208C?
For technical support, including XCS40-3PQ208C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XCS40-3PQ208C requirements.
6.How does Aetrix verify that XCS40-3PQ208C is sourced from the original manufacturer or authorized distributors?
All XCS40-3PQ208C 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 XCS40-3PQ208C meets industry standards.
7.What is the process for return or replacement of XCS40-3PQ208C?
All XCS40-3PQ208C units undergo pre-shipment inspection (PSI). If there is an issue with XCS40-3PQ208C, 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 XCS40-3PQ208C part is unused and in its original packaging.
Return procedure for XCS40-3PQ208C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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