XC3S4000-4FG900C - 4M Gate Spartan-3 FPGA | AMD
MPN： XC3S4000-4FG900C ✗ 停產XC3S4000-4FG900C 概覽
A field-programmable gate array, or FPGA, is a programmable digital integrated circuit whose logic, memory, and I/O resources can be configured after manufacture. Within the semiconductor hierarchy, an FPGA is a configurable logic device used for parallel processing, interface bridging, signal generation, data acquisition, and embedded control. The Spartan-3 family targets cost-sensitive designs requiring more logic density than small programmable logic devices while retaining a relatively simple implementation flow.
Key resources include 62,208 logic cells distributed across 6,912 CLBs or LABs, together with 1,769,472 RAM bits for buffers, lookup tables, or distributed data storage. The device provides 633 user I/O, supporting interfaces to external memory, transceivers, converters, processors, and network equipment. Its 1.2 V-class core operation reduces power relative to many older FPGA generations, while the -4 speed designation identifies its performance grade.
The 900-FBGA package concentrates a large amount of programmable logic and I/O into a compact surface-mount footprint. Fine-pitch ball-grid construction makes accurate PCB layout, via planning, assembly-profile inspection, and power distribution essential. Unlike a microcontroller, the FPGA executes hardware-defined parallel datapaths after configuration rather than relying primarily on sequential software execution.
Typical uses include industrial control, communications infrastructure, video and image processing, test equipment, storage controllers, networking, and embedded signal-processing systems. The large LUT and RAM inventory is particularly useful for parallel filters, protocol engines, bus bridges, and high-speed data paths where multiple operations must execute concurrently.
Before finalizing a board, verify the 900-ball land pattern against the manufacturer package drawing, provide clean core and I/O supplies, and confirm the selected Xilinx synthesis, implementation, and programming tools support the Spartan-3 device. Because this is a fine-pitch BGA package, assembly yield, solder-mask definition, X-ray inspection, and thermal design should be reviewed with the PCB fabricator.
This page combines the published device resources, package characteristics, operating limits, sourcing path, replacement options, and practical implementation considerations in one engineering-focused reference for FPGA design and procurement teams.
直接替換替代品，適用於 XC3S4000-4FG900C — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： XC3S4000-4FG900C （相同外形與佔位） — 差異在於 Device Type, Mounting Type, Speed Grade, Temperature Grade, Package.
XC3S4000-4FG900I
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →XC3S4000-5FG900C
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →XC3S4000-2FG900C
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
XC3S4000-1FG900C
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
XC3S5000-4FG900C
✅ 直接替換📋 參考替代品（不在目錄中）
XC3S4000-4FG900C 最大額定值與電氣特性
| Device Type | Field Programmable Gate Array (FPGA) |
| FPGA Family | Spartan-3 |
| System Gates | 4,000,000 gates |
| Logic Cells | 62,208 cells |
| Configurable Logic Blocks | 6,912 CLBs |
| Logic Array Blocks | 6,912 LABs |
| Total RAM Bits | 1,769,472 bits |
| User I/O | 633 I/O |
| Core Supply Voltage Range | 1.14 V to 1.26 V |
| Nominal Core Supply Voltage | 1.2 V |
| 工作溫度範圍 | 0 °C to 85 °C |
| Package Type | 900-FBGA |
| Package Ball Count | 900 balls |
| 安裝類型 | SMD |
| Speed Grade | -4 |
| Temperature Grade | Commercial |
| Lead-Free Status | Lead Free |
XC3S4000-4FG900C 900 balls 腳位配置指南
XC3S4000-4FG900C（900 balls 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： XC3S4000-4FG900C.
請參閱 資料表 以查看完整腳位配置。
典型應用
XC3S4000-4FG900C 適用於 6 應用s: Industrial Control and Automation, Communications and Network Interfaces, Data Acquisition and Instrumentation, Video and Image Processing, Storage and Interface Controllers, Programmable Logic and Embedded Control.
Industrial Control and Automation
The XC3S4000-4FG900C fits high-density machine-control logic because its 62,208 logic cells and 6,912 CLBs can implement sequencing, motion coordination, safety interlocks, and multiple peripheral bridges in parallel. Its 633 user I/O provides substantial connectivity for encoders, sensors, actuators, and industrial communications. The commercial 0 °C to 85 °C range suits controlled indoor equipment. A practical design uses parallel state machines for real-time control while the FPGA handles protocol conversion and timing-critical I/O. The main constraint is fine-pitch 900-FBGA assembly, so the PCB fabricator should review pad definition, via-in-pad requirements, thermal design, and inspection coverage before production release.
推薦
Communications and Network Interfaces
The XC3S4000-4FG900C is suitable for parallel packet processing, bus bridging, and protocol termination because its 62,208 logic cells provide substantial parallel datapath capacity and its 1,769,472 RAM bits support buffering. The 633 user I/O can accommodate multiple lanes and control interfaces, while the 1.14 V to 1.26 V core range supports low-voltage digital implementation. A practical architecture places header parsing, FIFO control, and CRC logic in the FPGA and uses a dedicated Ethernet controller for the physical network interface. Timing closure, clock-domain crossing, and I/O standards must be checked carefully because network interfaces often combine high-speed differential signaling with unrelated legacy interfaces.
推薦
Data Acquisition and Instrumentation
The XC3S4000-4FG900C fits instrument and test-equipment designs requiring parallel sampling control, digital filtering, and flexible I/O. Its 6,912 CLBs and 1,769,472 RAM bits can implement acquisition pipelines, digital filters, correlation functions, and trigger logic in parallel, while 633 user I/O supports converters and instrumentation interfaces. A practical implementation can synchronize multiple converters into the FPGA and perform filtering before transferring results to a processor. The design should establish converter and FPGA clock domains carefully, define deterministic latency, and preserve timing margins for post-processing. The 0 °C to 85 °C commercial rating is appropriate for laboratory equipment maintained within that ambient range.
推薦
Video and Image Processing
The XC3S4000-4FG900C can support parallel pixel pipelines, color processing, frame timing, and interface bridging because the 62,208 logic cells can execute multiple stages concurrently. Its 1,769,472 RAM bits provide distributed resources for line buffers and small frame-data stages, while 633 user I/O supports multiple parallel interfaces. In a practical implementation, the FPGA can receive decompressed or native video, perform thresholding, filtering, or color conversion, and forward results to a display or processor. Timing analysis should cover pixel clocks, frame boundaries, and asynchronous control signals. The 900-FBGA footprint demands careful escape routing and may require high-density PCB construction and assembly inspection.
推薦
Storage and Interface Controllers
The XC3S4000-4FG900C is appropriate for storage controllers and high-speed interface bridges where parallel logic must run alongside sizable buffers. The FPGA can implement command sequencing, data masks, ECC control, arbitration, and bus translation, using its 1,769,472 RAM bits for FIFO and packet-buffer resources. A practical design separates deterministic controller logic from external memory and storage interfaces, then uses clock-domain-crossing structures to protect data integrity. Engineers should verify timing against the selected memory and transceiver specifications rather than relying on nominal FPGA performance. The 633 user I/O support is valuable for wide parallel buses, although every assigned interface must satisfy its voltage, slew, and timing requirements.
推薦
Programmable Logic and Embedded Control
The XC3S4000-4FG900C can serve as a programmable logic platform that combines a soft processor, custom peripherals, and direct I/O control. Its 62,208 logic cells provide enough capacity for a processor-based subsystem plus deterministic hardware accelerators, while 1,769,472 RAM bits support instruction, data, and buffer memories. A practical architecture can place time-critical sensor acquisition, motor timing, or communication framing directly in hardware and delegate supervisory functions to a soft processor. Design effort should focus on memory bandwidth, interrupt latency, clock-domain boundaries, and deterministic I/O behavior. For final production, verify the complete design with the intended synthesis and implementation tools and confirm the configuration method matches the board’s startup requirements.
推薦
推薦產品摘要
工程參考資料，適用於 XC3S4000-4FG900C — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | XC3S4000-4FG900I | XC3S4000-5FG900C | XC3S4000-2FG900C | XC3S4000-1FG900C | XC3S5000-4FG900C |
|---|---|---|---|---|---|---|
| Package | 900-FBGA | 900-FBGA | 900-FBGA | 900-FBGA | 900-FBGA | 900-FBGA |
| Brand | AMD | AMD | AMD | AMD | AMD | AMD |
| FPGA Family | Spartan-3 | Spartan-3 | Spartan-3 | Spartan-3 | Spartan-3 | Spartan-3 |
| System Gates | 4,000,000 gates | 4,000,000 gates | 4,000,000 gates | 4,000,000 gates | 4,000,000 gates | 5,000,000 gates, 25% higher |
| Core Supply Voltage Range | 1.14 V to 1.26 V | 1.14 V to 1.26 V | 1.14 V to 1.26 V | 1.14 V to 1.26 V | 1.14 V to 1.26 V | 1.14 V to 1.26 V |
| Speed Grade | -4 | -4 | -5 | -2 | -1 | -4 |
| Temperature Grade | Commercial, 0 °C to 85 °C | Industrial grade | Commercial, 0 °C to 85 °C | Commercial, 0 °C to 85 °C | Commercial, 0 °C to 85 °C | Commercial, 0 °C to 85 °C |
主要差異化特點
- Direct replacement choice with increased logic density (對比XC3S5000-4FG900C)
- Higher speed option in the same base package (對比XC3S4000-4FG900C)
- Industrial temperature alternative without changing the speed grade (對比XC3S4000-4FG900C)
設計說明
Treat the 900-FBGA land pattern as a high-density assembly constraint. Use the manufacturer FG900 package drawing to define the ball matrix, solder-mask apertures, paste stencil, via-in-pad rules, and assembly profile. Escape power, configuration, clock, and high-speed differential pairs before placing general-purpose I/O. Share the final stack-up and drill plan with the assembler because changes to buried or blind vias can affect escape routing and production yield.
Separate the 1.2 V-class core rail from the I/O supplies and follow the manufacturer’s recommended power-distribution topology. Place the smallest decoupling capacitors directly at the relevant supply and ground balls, then provide bulk capacitance near the device. Estimate each rail’s worst-case current from the final utilization report, including configuration and transient activity, and add design margin before selecting regulators and copper dimensions.
Assign clocks and configuration signals before general I/O and preserve continuous return paths beneath high-speed routes. Keep a clean boundary between the Spartan-3 core supply and noisy I/O supply regions, and validate every external interface against its voltage, slew, and timing requirements. The XC3S4000-4FG900C offers 633 user I/O, but availability in the selected bank may depend on package, supply, and configuration constraints documented for the device.
Do not assume that any same-package Spartan-3 device is automatically interchangeable. Speed-grade substitutions can change timing closure, while a larger-density device can alter utilization and power behavior. Compare the complete pin tables, configuration interface, I/O standards, and timing reports, then perform a clean synthesis, implementation, and post-route simulation before approving a substitution. The 900-ball package also requires inspection planning that accounts for hidden solder-joint defects.
合規資訊
The product listing identifies the XC3S4000-4FG900C package as lead free. No explicit RoHS, REACH, halogen-free, conflict-minerals, or AEC-Q100 statement was identified. AEC-Q100 is not applicable to this commercial-grade FPGA designation.
