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AMD XC3S400A-5FGG400C
- Part No.:
- XC3S400A-5FGG400C
- Manufacturer:
- AMD
- Category:
- FPGAs (Field Programmable Gate Array)
- Package:
- 400-BGA
- Datasheet:
-
XC3S400A-5FGG400C.pdf
- Description:
- IC FPGA 311 I/O 400FBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,850
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Product details
Overview
XC3S400A-5FGG400C from AMD (formerly Xilinx) is a Spartan-3A FPGA with 400,000 system gates, 8,064 logic cells, and 216 I/O pins in a 400-pin Fine-Pitch Ball Grid Array (FBGA) package. It operates at 500 MHz maximum DCI clock frequency and supports SelectIO standards including LVCMOS, LVTTL, and SSTL.
For engineers reviewing the XC3S400A-5FGG400C datasheet, pinout, applications, or equivalent options, key selection criteria include I/O voltage flexibility (1.2 V to 3.3 V), embedded block RAM (288 kbits), and support for DDR/DDR2 memory interfaces in cost-sensitive industrial control and communication interface designs.
Technical Context
The XC3S400A-5FGG400C implements a configurable logic fabric based on 4-input LUTs and distributed RAM, with dedicated carry logic for arithmetic functions. It integrates twelve 18×18 multipliers and eight Digital Clock Managers (DCMs) for phase-matched clock synthesis and jitter reduction.
Configuration is performed via Master Serial mode using external PROM or JTAG boundary-scan, supporting IEEE 1149.1 compliance. The device includes internal pull-up resistors, programmable slew rate control, and output drive strength selection per I/O bank.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Cells | 8,064 - provides combinational and sequential logic capacity for medium-complexity digital controllers |
| System Gates | 400,000 - indicates overall logic density suitable for protocol bridging and peripheral interfacing |
| Block RAM | 288 kbits - enables FIFOs, dual-port buffers, and small lookup tables without external memory |
| I/O Pins | 216 - supports parallel bus interfaces, multiple SPI/I2C peripherals, and high-pin-count sensor arrays |
| DCM Units | 8 - delivers clock deskew, frequency synthesis, and duty-cycle correction across multiple domains |
| Max I/O Voltage | 3.3 V - allows direct interfacing with legacy 3.3 V logic and mixed-voltage board designs |
Pinout & Package
XC3S400A-5FGG400C is housed in a 400-pin Fine-Pitch Ball Grid Array (FBGA) package with 216 user I/Os distributed across 12 banks. Each bank supports independent VCCO and VREF settings, enabling mixed-voltage operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| G1 | CONFIG_DONE | Open-drain status signal indicating successful configuration completion |
| H2 | INIT_B | Active-low open-drain initialization status during configuration and reset |
| J1 | PROGRAM_B | Active-low asynchronous reset that clears configuration memory and restarts loading |
| K2 | TCK | JTAG test clock input for boundary-scan and debug access |
| L1 | TMS | JTAG test mode select controlling TAP controller state transitions |
| M2 | TDO | JTAG test data output for serial scan-out of device registers |
| N1 | TDI | JTAG test data input for serial scan-in of instructions and data |
Key Features
| Feature | Design Value |
|---|---|
| Dedicated Multipliers | Twelve 18×18-bit signed/unsigned multipliers enable real-time filtering and motor control math |
| SelectIO Technology | Per-bank I/O standards support concurrent LVCMOS25, LVTTL, and SSTL18 on same device |
| Digital Clock Manager (DCM) | Eight DCMs provide zero-delay buffering, frequency synthesis, and phase shifting without external PLLs |
| Configuration Security | Bitstream encryption option prevents reverse engineering of programmed logic design |
| Low-Power Mode | Standby current as low as 50 µA enables battery-backed suspend/resume in portable systems |
Applications
| Industrial PLC Interface Module | Medical Imaging Data Acquisition |
|---|---|
Use Scenario: Real-time I/O expansion and protocol translation between fieldbus (PROFIBUS, CANopen) and host CPU. IC Role / Device Role / Timing Role: FPGA acts as reconfigurable bridge and timing coordinator for deterministic cycle-based communication. Use Value: 216 I/O pins and 8 DCMs enable synchronized sampling and multi-protocol arbitration without external glue logic. | Use Scenario: High-speed digitization and preprocessing of analog sensor outputs from ultrasound transducer arrays. IC Role / Device Role / Timing Role: FPGA performs parallel ADC interface, FIR filtering, and data packing before transmission to DSP subsystem. Use Value: 12 embedded multipliers and 288 kbits block RAM allow real-time beamforming calculations and local buffer management. |
| Automotive Diagnostic Tool | Test Equipment Pattern Generator |
Use Scenario: OBD-II and UDS protocol emulation with variable timing constraints across vehicle ECUs. IC Role / Device Role / Timing Role: FPGA implements flexible timing engines and protocol state machines for multi-bus diagnostics. Use Value: Per-I/O bank voltage control allows direct connection to 5 V, 3.3 V, and 2.5 V ECU signaling levels without level shifters. | Use Scenario: Generation of precise, repeatable digital stimulus waveforms for IC functional validation. IC Role / Device Role / Timing Role: FPGA serves as deterministic pattern sequencer with sub-cycle timing resolution via DCM feedback. Use Value: Eight DCM units support independent clock domains for stimulus, capture, and synchronization logic in ATE environments. |
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 |
|---|---|---|---|
| XC3S500E-5FGG400C | Higher logic density (11,648 LCs), larger block RAM (360 kbits), same package and pinout | Better suited for designs requiring additional state machines or wider datapaths | Choose when future scalability or increased on-chip memory is required without PCB change |
| XC6SLX45-3CSG324C | Based on Spartan-6 architecture; higher performance (1.2 Gbps I/O), lower static power, but different pinout and configuration scheme | Requires layout revision and toolchain migration; supports PCIe endpoint and DDR3 | Consider for new designs needing higher bandwidth or extended lifecycle beyond Spartan-3A |
Compared with XC3S400A-5FGG400C, XC3S500E-5FGG400C offers pin-compatible headroom for logic growth, while XC6SLX45-3CSG324C delivers architectural improvements at the cost of redesign effort and toolchain transition.
Availability
XC3S400A-5FGG400C is available at Aetrix Electronics and suitable for industrial automation, medical instrumentation, and automotive diagnostic equipment requiring stable component supply over extended production lifecycles.
Supply support for XC3S400A-5FGG400C 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 for cost-optimized, high-volume embedded applications.
The Spartan-3A product line was designed for non-volatile, low-cost programmable logic solutions in industrial control, communications infrastructure, and test equipment where predictable timing and I/O flexibility are critical.
FAQ
What is the configuration method supported by XC3S400A-5FGG400C?
The XC3S400A-5FGG400C supports Master Serial, Slave Serial, and JTAG configuration modes. Master Serial uses an external PROM to load bitstream automatically on power-up. JTAG enables in-system programming and debugging via IEEE 1149.1 boundary-scan. XC3S400A-5FGG400C requires proper M0–M2 pin strapping to select the active mode.
Does XC3S400A-5FGG400C support DDR memory interfaces?
Yes, XC3S400A-5FGG400C supports DDR SDRAM interfaces up to 200 MHz data rates using its SelectIO standards and DCM-based clock forwarding. It implements source-synchronous timing with programmable input delays and output phase alignment. XC3S400A-5FGG400C does not support DDR2 or DDR3 protocols natively.
What is the operating temperature range for XC3S400A-5FGG400C?
XC3S400A-5FGG400C is rated for commercial temperature range (0 °C to +70 °C). It is not qualified for industrial (−40 °C to +85 °C) or extended temperature operation. Thermal derating applies above 60 °C ambient, and junction temperature must remain below 85 °C under full utilization. XC3S400A-5FGG400C datasheet specifies thermal resistance θJA = 25.5 °C/W for the FGG400 package.
Can XC3S400A-5FGG400C be used in new designs today?
XC3S400A-5FGG400C remains available through authorized distributors and Aetrix Electronics for legacy design support and long-lifecycle industrial programs. While newer Spartan-6 and Artix-7 families offer enhanced features, XC3S400A-5FGG400C is still viable for cost-sensitive, low-power, and pin-stable replacements where toolchain compatibility and documentation maturity are priorities.
How many Digital Clock Managers (DCMs) does XC3S400A-5FGG400C include?
XC3S400A-5FGG400C integrates eight Digital Clock Managers (DCMs), each capable of frequency synthesis, phase shifting, duty-cycle correction, and clock doubling. These DCMs operate independently per clock domain and support input frequencies from 12 MHz to 240 MHz. XC3S400A-5FGG400C uses DCMs instead of PLLs, limiting jitter performance compared to later architectures but ensuring predictable timing behavior.
XC3S400A-5FGG400C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- AMD
- Series:
- Spartan®-3A
- Package/Case:
- 400-BGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Number of LABs/CLBs:
- 896
- Number of Logic Elements/Cells:
- 8064
- Total RAM Bits:
- 368640
- Number of I/O:
- 311
- Number of Gates:
- 400000
- Voltage - Supply:
- 1.14V ~ 1.26V
- Mounting Type:
- Surface Mount
- Operating Temperature:
- 0°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 400-FBGA (21x21)
XC3S400A-5FGG400C FAQ
1.How can I place an order for XC3S400A-5FGG400C through Aetrix?
Please submit a Request for Quotation (RFQ) for XC3S400A-5FGG400C 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 XC3S400A-5FGG400C reliable?
The price and inventory of XC3S400A-5FGG400C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XC3S400A-5FGG400C is usually 5 days.
3.What payment methods are accepted for XC3S400A-5FGG400C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XC3S400A-5FGG400C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XC3S400A-5FGG400C?
XC3S400A-5FGG400C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XC3S400A-5FGG400C 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 XC3S400A-5FGG400C?
For technical support, including XC3S400A-5FGG400C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XC3S400A-5FGG400C requirements.
6.How does Aetrix verify that XC3S400A-5FGG400C is sourced from the original manufacturer or authorized distributors?
All XC3S400A-5FGG400C 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 XC3S400A-5FGG400C meets industry standards.
7.What is the process for return or replacement of XC3S400A-5FGG400C?
All XC3S400A-5FGG400C units undergo pre-shipment inspection (PSI). If there is an issue with XC3S400A-5FGG400C, 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 XC3S400A-5FGG400C part is unused and in its original packaging.
Return procedure for XC3S400A-5FGG400C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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