XC3S50-4PQ208C - 50K Gate Spartan-3 FPGA | AMD
料号： XC3S50-4PQ208C ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
XC3S50-4PQ208C 概述
A field-programmable gate array is a semiconductor device whose logic and interconnect resources are configured after fabrication. FPGAs sit above simple fixed-function logic devices in the hardware hierarchy because designers can implement counters, state machines, interfaces, control logic, and signal processing without manufacturing a custom integrated circuit. The Spartan-3 family targets applications where moderate logic density, flexible I/O, and economical implementation are more important than the very high capacity of larger FPGAs.
The XC3S50-4PQ208C provides 50,000 system gates and 1,728 logic cells, while the supplied distributor information reports 124 user I/O pins. Its 73,728 RAM bits can support small internal buffers, lookup-table-based storage, counters, and communication state. The 208-pin PQFP package is a leaded surface-mount package that is easier to inspect and rework than a very fine-pitch BGA, although its 208 leads require a substantially larger board footprint.
The device is associated with 90 nm technology and a 1.2 V supply in the supplied product references. The -4 designation is associated with the device’s speed grade, while the C suffix identifies the commercial temperature/grade coding used by the manufacturer’s ordering system. Exact timing constraints should be taken from the applicable Xilinx Spartan-3 datasheet and the selected design package.
Typical uses include industrial control, instrumentation, communications, embedded systems, consumer electronics, and compact digital logic platforms. The 124 available I/O pins make the device useful when a design requires more external connectivity than a small FPGA package provides. The internal RAM can support protocol state, data buffering, and lookup functions without using external memory when the required storage is small.
Designers should verify the exact pinout, power rails, decoupling requirements, configuration interface, I/O standards, and timing constraints against the official Spartan-3 documentation before layout. The PQFP footprint requires adequate solder mask and paste design around 208 leads, while the FPGA’s configuration pins, clock inputs, and I/O buffers must be planned during schematic capture.
This page consolidates distributor and manufacturer-linked reference information, including logic density, RAM, I/O count, package, voltage, and stated frequency, and provides engineering guidance for selecting and integrating the XC3S50-4PQ208C. Availability, pricing, lifecycle status, and exact electrical limits should be confirmed against the current authorized source data.
直接替换替代料： XC3S50-4PQ208C ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： XC3S50-4PQ208C （相同外形与封装尺寸） ——差异在于 Device Type, Logic Cells, Process Technology, FPGA Family, Package.
快速对比工具——选择替代料号进行并排对比：
XC3S50-5PQG208C
✅ 直接替换📋 参考替代料（不在目录中）
XC3S50-4PQG208I
✅ 直接替换✓ 有现货
$55.85 / 个
查看数据手册 →XC3S500E-4PQG208C
✅ 直接替换✓ 有现货
$23.7985 / 个
查看数据手册 →XC3S50-4TQ144C
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →XC3S50AN-4TQG144I
✅ 直接替换📋 参考替代料（不在目录中）
XC3S50-4PQ208C 最大额定值与电气特性
| Device Type | Field Programmable Gate Array (FPGA) |
| FPGA Family | Spartan-3 |
| System Gates | 50,000 gates |
| Logic Cells | 1,728 logic cells |
| Logic Blocks | 192 logic blocks |
| Total RAM | 73,728 RAM bits |
| User I/O Pins | 124 I/O pins |
| Maximum Stated Frequency | 630 MHz |
| 电源电压 | 1.2 V |
| Process Technology | 90 nm |
| 封装 | 208-pin PQFP |
| Package Type | 208-BFQFP |
| Lead Count | 208 terminals |
| 安装类型 | Surface Mount |
| 工作温度 | 0 °C to +85 °C |
| Programmable Logic | Configurable logic array |
| On-Chip Memory | 73,728 RAM bits |
XC3S50-4PQ208C 208-bfqfp 引脚配置指南
XC3S50-4PQ208C（208-bfqfp 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： XC3S50-4PQ208C.
请参阅 数据手册 以查看完整引脚配置。
典型应用
XC3S50-4PQ208C 适用于 6 应用s: Industrial Control Logic, Communications Interface, Embedded Instrumentation, Industrial Data Acquisition, Consumer Electronics Control, Test and Measurement Control.
Industrial Control Logic
The XC3S50-4PQ208C fits industrial control boards that need deterministic programmable logic alongside external sensors, actuators, and communication transceivers. Its 1,728 logic cells can implement sequencing logic, interlocks, timers, and state machines, while 124 user I/O pins provide ample connections for field inputs and outputs. The 73,728 RAM bits can hold local tables or small data buffers without requiring an external memory device for modest workloads. Designers should verify clocking, I/O voltage tolerances, isolation strategy, and industrial temperature requirements in the final design.
推荐
Communications Interface
The XC3S50-4PQ208C is suitable for custom communication front ends where protocol framing, filtering, buffering, and control must be coordinated tightly. The 50,000-system-gate device provides enough configurable resources for low-to-moderate-speed serial protocols, while the 124 I/O pins support parallel data paths and control signals. The 73,728 RAM bits can support packet buffering, counters, or lookup operations. Use external transceivers for physical-layer signaling and validate timing margins against the selected clock and baud-rate assumptions.
推荐
Embedded Instrumentation
The XC3S50-4PQ208C can serve as the programmable control fabric in compact instrumentation systems where measurement control, calibration tables, status reporting, and local processing are required. Its 1,728 logic cells are suitable for control sequencing and digital filtering, and its 73,728 RAM bits provide local storage for calibration or sample data. The 208-pin PQFP package exposes a large I/O count for sensor conditioning, ADC interfaces, displays, and service connectors. Analog accuracy and safety margins still depend on external signal-conditioning components and system-level validation.
推荐
Industrial Data Acquisition
The XC3S50-4PQ208C is appropriate for data-acquisition front ends that must coordinate multiple converter channels, digital filtering, sample counters, and control outputs. The 124 user I/O pins allow parallel converter data and control signals to be connected without multiplexing, while the FPGA’s RAM can implement short buffering stages. A practical design should establish the sampling clock, define acquisition timing, and keep high-speed signal routing away from sensitive control paths. External ADC and interface components remain necessary because the FPGA is a programmable logic device, not a data converter.
推荐
Consumer Electronics Control
The XC3S50-4PQ208C can be used in programmable control and user-interface logic for compact consumer products where a microcontroller alone would be insufficient or where deterministic hardware timing is valuable. Its 1,728 logic cells and 73,728 RAM bits can implement display sequencing, key scanning, motor-control timing, or custom peripheral logic. The 124 I/O pins provide broad connectivity for buttons, indicators, displays, and external controllers. Validate ESD, power sequencing, connector protection, and production-test requirements before using the device in a consumer product.
推荐
Test and Measurement Control
The XC3S50-4PQ208C is useful for instrument-control boards that coordinate sequencing, digital limits, timing, data routing, and external interface adapters. Its moderate logic density is suitable for a control plane, while 124 I/O pins allow flexible connection to converters, relays, displays, and communication interfaces. The internal RAM can support measurement tables, counters, and temporary control data. Because measurement accuracy depends on analog circuitry, clock quality, isolation, and calibration, the FPGA should be treated as the deterministic digital-control portion of the instrument rather than as a replacement for analog front ends.
推荐
推荐产品汇总
工程参考数据： XC3S50-4PQ208C ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | XC3S50-5PQG208C | XC3S50-4PQG208I | XC3S500E-4PQG208C | XC3S50-4TQ144C | XC3S50AN-4TQG144I |
|---|---|---|---|---|---|---|
| Brand | AMD | AMD | AMD | AMD | AMD | AMD |
| Package | 208-pin PQFP | 208-pin PQFP | 208-pin PQFP | 208-pin PQFP | 144-pin TQFP | 144-pin TQFP |
关键差异点
- Moderate Spartan-3 logic density with substantial I/O availability （对比 XC3S50-5PQG208C)
- 124 user I/O pins support wider external connectivity （对比 XC3S50-4TQ144C)
- Internal RAM supports local buffering and control tables （对比 XC3S50-5PQG208C)
设计说明
The 208-lead PQFP footprint is mechanically and electrically different from a QFP symbol with a different lead count or pitch. Use the AMD package drawing to define pad length, pad width, row spacing, solder-mask clearance, and paste volume. Keep configuration and clock pins accessible for programming and validation, and route high-speed or sensitive signals away from noisy switching supplies and power inductors.
The supplied references identify a 1.2 V FPGA supply, but they do not provide the complete core, auxiliary, and I/O power budget. Before layout, obtain the official Spartan-3 power table and separate supplies where required. Place bypass capacitors close to the relevant power pins, use a low-impedance ground plane, and verify startup sequencing, rail tolerances, current transients, and regulator stability in the final system.
Do not treat the 630 MHz figure as a guaranteed operating frequency for every XC3S50 design. Timing performance depends on the selected speed-grade interpretation, clock topology, I/O standard, routing path, loading, and tool version. Confirm the device identifier and package suffix against the AMD ordering guide, and generate the final bitstream with a tool release that explicitly supports the Spartan-3 device.
Reserve clean routing for clock inputs and any high-speed interface signals. Keep FPGA power distribution and decoupling paths short, provide a continuous ground reference, and separate noisy switching-regulator paths from sensitive analog or communication sections. The 124 I/O pins are useful for external connectivity, but every assigned signal still requires voltage-tolerance and I/O-standard verification.
合规信息
The retrieved search snippets identify the part as lead-free in one distributor description, but no formal manufacturer compliance declarations were provided. RoHS, REACH, halogen-free, conflict-minerals, and AEC-Q100 status remain unknown except that automotive qualification is not indicated.
