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AMD XC3S500E-4PQG208C
- Part No.:
- XC3S500E-4PQG208C
- Manufacturer:
- AMD
- Category:
- FPGAs (Field Programmable Gate Array)
- Package:
- 208-BFQFP
- Datasheet:
-
XC3S500E-4PQG208C.pdf
- Description:
- IC FPGA 158 I/O 208QFP
- Quantity:
- Payment:
- Shipping:
Inventory:952
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Product details
Overview
XC3S500E-4PQG208C from AMD (formerly Xilinx) is a Spartan-3E FPGA with 500,000 system gates, 11,200 logic cells, and 208-pin PQFP packaging. It operates at -4 speed grade (4.9 ns CLB delay), supports 3.3 V I/O, and includes embedded block RAM and DLLs for clock management. It is used in industrial control logic and low-cost communication interface bridging.
For engineers reviewing the XC3S500E-4PQG208C datasheet, pinout, applications, or equivalent options, key selection considerations include logic density, I/O voltage compatibility, DLL-based clock deskew capability, and availability of dedicated multipliers for DSP functions.
Technical Context
The XC3S500E-4PQG208C implements a configurable logic fabric based on 4-input LUTs and flip-flops, with distributed RAM and shift registers per CLB. It integrates twelve 18×18-bit binary multipliers and up to 360 Kb of total block RAM across 20 BRAM blocks.
It features Digital Clock Managers (DCMs) supporting frequency synthesis, phase shifting, and duty-cycle correction. I/O banks are configurable for LVCMOS, LVTTL, PCI, and SSTL standards, with programmable slew rate and drive strength per pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Cells | 11,200 - provides combinational and sequential logic capacity for medium-complexity digital controllers |
| System Gates | 500,000 - indicates overall logic density suitable for protocol translation and glue logic replacement |
| Block RAM | 360 Kb across 20 blocks - enables local data buffering and FIFO implementation without external memory |
| Multipliers | 12 × 18×18-bit - supports basic FIR filtering and arithmetic-intensive control algorithms |
| DCMs | 2 - deliver jitter-reduced clock outputs with phase alignment for synchronous interfaces |
| I/O Pins | 141 user I/O - supports parallel bus interfacing and multi-channel sensor aggregation |
| Speed Grade | -4 (4.9 ns CLB delay) - defines maximum operating frequency for critical path timing closure |
Pinout & Package
XC3S500E-4PQG208C uses a 208-pin Plastic Quad Flat Pack (PQFP) with 0.5 mm pitch, 28 × 28 mm body size, and exposed thermal pad. Pin assignments follow Xilinx Spartan-3E pinout standard for PQFP packages.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| G1 | VCCINT | 1.2 V core supply - must be filtered and decoupled locally to meet noise tolerance |
| P2 | VCCAUX | 2.5 V auxiliary supply - powers configuration circuitry and DCMs |
| A1 | PROGRAM_B | Active-low configuration reset - initiates reconfiguration when pulsed low |
| T1 | DONE | Open-drain status output - goes high when configuration completes successfully |
| R1 | INIT_B | Open-drain initialization indicator - signals readiness for configuration data |
| E2 | CCLK | Configuration clock input - controls serial bitstream loading timing |
Key Features
| Feature | Design Value |
|---|---|
| Embedded Multipliers | 12 dedicated 18×18-bit signed/unsigned multipliers enable real-time coefficient scaling in motor control loops |
| Digital Clock Managers (DCMs) | Two fully independent DCMs support zero-delay buffer mode and ±180° phase shifts for DDR interface timing alignment |
| SelectIO Technology | Per-pin I/O standard selection (LVCMOS/LVTTL/PCI) allows mixed-voltage board design without level shifters |
| Block RAM Configuration | Each 18 Kb BRAM supports true dual-port operation with independent clocks - ideal for asynchronous data crossing |
| Configurable Logic Blocks (CLBs) | Each CLB contains two slices with four LUTs and eight flip-flops - optimized for pipelined state machine implementation |
Applications
| Industrial Motion Control | Legacy Interface Bridging |
|---|---|
Use Scenario: Real-time PWM generation and encoder feedback processing in servo drives. IC Role / Device Role / Timing Role: FPGA fabric implements closed-loop position controller with deterministic latency under 200 ns. Use Value: On-chip multipliers and DCMs eliminate external timing ICs and reduce BOM count by three components. | Use Scenario: Converting RS-232/RS-485 protocols to SPI/I²C for microcontroller host systems. IC Role / Device Role / Timing Role: Protocol translator with programmable baud rate generators and framing logic. Use Value: 141 user I/O pins allow simultaneous support of multiple legacy buses without multiplexing. |
| Automated Test Equipment (ATE) | Low-Cost Video Processing |
Use Scenario: Pattern generation and response capture for PCB functional testing. IC Role / Device Role / Timing Role: High-speed digital I/O engine synchronized to 100 MHz test clock via DCM deskew. Use Value: Block RAM buffers store 128K test vectors on-chip, eliminating external SRAM and reducing test cycle time. | Use Scenario: RGB-to-YUV color space conversion and line buffering for VGA output. IC Role / Device Role / Timing Role: Pixel-rate pipeline processor with dual-clock BRAM for horizontal line storage. Use Value: Dedicated multipliers accelerate matrix coefficients; DCMs align pixel and sync clocks to ±50 ps jitter. |
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 |
|---|---|---|---|
| XC3S400A-4PQG208C | Lower logic density (8,064 LCs), no embedded multipliers, same package and I/O count | Suitable only for simpler state machines without arithmetic; lacks DSP capability | Choose when design fits within 8K LCs and requires cost reduction without multiplier use |
| XC3S700A-4PQG208C | Higher logic density (13,248 LCs), same multiplier count and DCMs, identical pinout | Supports larger control algorithms and additional peripheral interfaces | Choose when future scalability or added functionality (e.g., Ethernet MAC) is required |
Compared with XC3S500E-4PQG208C, the XC3S400A-4PQG208C reduces gate count and removes multipliers for cost-sensitive non-DSP tasks, while the XC3S700A-4PQG208C extends logic capacity within the same footprint for feature-rich upgrades.
Availability
XC3S500E-4PQG208C is available at Aetrix Electronics and suitable for industrial motion control, legacy interface bridging, and automated test equipment requiring stable component supply and long-term production support.
Supply support for XC3S500E-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 continues development and support of the Spartan FPGA family. Xilinx pioneered programmable logic architecture and system-on-chip integration for embedded applications.
The Spartan-3E family targets cost-sensitive, high-volume applications including industrial automation, consumer electronics, and communications infrastructure where logic density and I/O flexibility outweigh advanced process node advantages.
FAQ
What is the maximum operating frequency of the XC3S500E-4PQG208C?
The XC3S500E-4PQG208C has a -4 speed grade specifying a 4.9 ns CLB propagation delay. Its maximum system clock frequency depends on design routing and resource usage but typically achieves 250–320 MHz for well-constrained synchronous paths. The DCMs support input frequencies up to 240 MHz and can generate higher internal clocks via multiplication.
Does the XC3S500E-4PQG208C support JTAG configuration?
Yes, the XC3S500E-4PQG208C supports IEEE 1149.1 JTAG boundary-scan and configuration through the TDI, TDO, TMS, and TCK pins. JTAG enables in-system programming, debugging, and verification without requiring external configuration PROMs or serial flash devices.
What power supplies are required for the XC3S500E-4PQG208C?
The XC3S500E-4PQG208C requires three distinct supplies: 1.2 V for core logic (VCCINT), 2.5 V for auxiliary circuits including DCMs (VCCAUX), and 3.3 V for I/O banks (VCCO). Each supply must be independently regulated and decoupled per Xilinx Spartan-3E PCB layout guidelines.
Can the XC3S500E-4PQG208C replace the XC3S500-4PQG208C?
No, the XC3S500E-4PQG208C is not a direct replacement for the XC3S500-4PQG208C. The 'E' suffix denotes the enhanced Spartan-3E family with improved I/O standards, lower static power, and updated configuration modes. Pinout is compatible, but configuration bitstreams and power sequencing differ.
Is the XC3S500E-4PQG208C RoHS compliant?
Yes, the XC3S500E-4PQG208C is RoHS compliant and lead-free. The 'G' in PQG208 indicates green (halogen-free) packaging per JEDEC J-STD-609. Full compliance documentation, including substance declarations and test reports, is available through AMD's product change notifications.
XC3S500E-4PQG208C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- AMD
- Series:
- Spartan®-3E
- Package/Case:
- 208-BFQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Number of LABs/CLBs:
- 1164
- Number of Logic Elements/Cells:
- 10476
- Total RAM Bits:
- 368640
- Number of I/O:
- 158
- Number of Gates:
- 500000
- Voltage - Supply:
- 1.14V ~ 1.26V
- Mounting Type:
- Surface Mount
- Operating Temperature:
- 0°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 208-PQFP (28x28)
XC3S500E-4PQG208C FAQ
1.How can I place an order for XC3S500E-4PQG208C through Aetrix?
Please submit a Request for Quotation (RFQ) for XC3S500E-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 XC3S500E-4PQG208C reliable?
The price and inventory of XC3S500E-4PQG208C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XC3S500E-4PQG208C is usually 5 days.
3.What payment methods are accepted for XC3S500E-4PQG208C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XC3S500E-4PQG208C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XC3S500E-4PQG208C?
XC3S500E-4PQG208C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XC3S500E-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 XC3S500E-4PQG208C?
For technical support, including XC3S500E-4PQG208C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XC3S500E-4PQG208C requirements.
6.How does Aetrix verify that XC3S500E-4PQG208C is sourced from the original manufacturer or authorized distributors?
All XC3S500E-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 XC3S500E-4PQG208C meets industry standards.
7.What is the process for return or replacement of XC3S500E-4PQG208C?
All XC3S500E-4PQG208C units undergo pre-shipment inspection (PSI). If there is an issue with XC3S500E-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 XC3S500E-4PQG208C part is unused and in its original packaging.
Return procedure for XC3S500E-4PQG208C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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