XC3S50A-4VQG100C - 50K Spartan-3A FPGA VQFP-100 | AMD
料号： XC3S50A-4VQG100C ✓ 量产中XC3S50A-4VQG100C 概述
A field-programmable gate array is a semiconductor whose internal interconnection and logic fabric are defined by a configuration bitstream loaded at power-up. In the device hierarchy an FPGA sits above programmable logic devices such as CPLDs and complex PLDs, and above that sit the ASIC and custom silicon it replaces. Because a single FPGA can implement what would otherwise require several glue-logic ICs and a microcontroller, it shortens development cycles and consolidates glue logic, interface adaptation and control functions onto a single silicon device.
Key features of the XC3S50A-4VQG100C include the -4 speed grade, which corresponds to a 250 MHz system clock rate for this device, 68 user I/O in a compact 100-pin footprint, and the full Spartan-3A configuration feature set. Configuration is supported through Master Serial mode using a platform Flash PROM, Master SPI mode with commodity serial flash, BPI mode with commodity parallel flash, Slave Parallel mode (SelectMAP) using a processor, and Slave Serial mode. An on-chip oscillator and typical / startup clocking support the configuration and clock-management needs of small systems.
Architecturally, the Spartan-3A fabric combines distributed RAM, dedicated block RAM, and 18 dedicated multipliers in DSP-enabled versions of the family, giving designers datapath resources without leaving the package. The 90 nm process delivers low static and dynamic power for a device with a 1.2 V core, while the -4 speed grade is the mainstream industrial and commercial cost point for designs that do not require the -5 grade timing margin.
Typical applications for the XC3S50A-4VQG100C include industrial control and instrumentation front-ends, LED display and lighting controllers, low-cost sensor aggregation nodes, consumer appliance sequencers, small protocol converters and interface bridges, and education or prototyping platforms that need a compact, low-pin-count FPGA.
A key design consideration is that the 100-pin VQFP footprint is among the tightest in the family, so routing to 68 I/O in a 14 x 14 mm area demands short, well-referenced escape routing and a solid ground plane under the device. Also note that the C suffix denotes the commercial 0 to 85 C temperature grade; industrial or extended-temperature assemblies should be selected when the end environment is wider.
直接替换替代料： XC3S50A-4VQG100C ——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： XC3S50A-4VQG100C （相同外形与封装尺寸） ——差异在于 Device Type, Package, Configuration Modes, Core Supply Voltage, Logic Cells.
XC3S50A-4VQG100I
✅ 直接替换联系询价
查看数据手册 →XC3S50A-4TQG100C
✅ 直接替换📋 参考替代料（不在目录中）
XC3S50A-5VQG100C
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
XC3S50A-5TQG100C
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
XC3S100A-4VQG100C
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
XC3S50A-4VQG100C 最大额定值与电气特性
| Device Type | FPGA (Field Programmable Gate Array) |
| Series | Spartan-3A (XC3S50A) |
| Logic Cells | 1,584 cells |
| Configurable Logic Blocks (CLBs) | 176 CLBs |
| Equivalent Logic Gates | 50,000 gates (50K) |
| User I/O | 68 I/O |
| Maximum System Clock Frequency | 250 MHz (-4 speed grade) |
| Process Technology | 90 nm CMOS |
| Core Supply Voltage | 1.2 V |
| 封装 | VQFP-100 (TQG100), 14 x 14 mm |
| 安装类型 | Surface Mount |
| 工作温度范围 | 0 C to +85 C (C suffix, commercial) |
| Configuration Modes | Master Serial (PROM), Master SPI (serial flash), BPI (parallel flash), Slave Parallel (SelectMAP, processor), Slave Serial |
| Bitstream Configuration Support | Serial and parallel bitstream loading for platform Flash PROM, commodity serial flash and commodity parallel flash |
| On-Chip Clocking | On-chip oscillator and startup clocking |
| Dedicated Multipliers | 18 dedicated multipliers (Spartan-3A DSP family feature set) |
| RoHS 状态 | Compliant (RoHS) |
| REACH Status | Compliant (REACH) |
| AEC-Q100 Qualification | Not applicable (industrial/consumer FPGA, not automotive qualified) |
XC3S50A-4VQG100C vqfp-100 (tqg100), 14 x 14 mm 引脚配置指南
XC3S50A-4VQG100C（vqfp-100 (tqg100), 14 x 14 mm 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： XC3S50A-4VQG100C.
请参阅 数据手册 以查看完整引脚配置。
典型应用
XC3S50A-4VQG100C 适用于 6 应用s: Industrial Control and Instrumentation Front-End, LED Lighting and Display Controllers, Sensor Aggregation and IoT Node Controller, Protocol Converters and Interface Bridges, Consumer Appliance Sequencers and HMI, Test, Measurement and Education Platforms.
Industrial Control and Instrumentation Front-End
The XC3S50A-4VQG100C suits compact controller boards that must sequence relays, condition discrete inputs and drive operator displays while keeping the footprint small. Its 1,584 logic cells and 176 CLBs are enough to host a state machine for a multi-axis controller plus logic for debouncing and isolation, while the 68 user I/O in the 100-pin VQFP leave room for digital I/O expansion buses. The 250 MHz -4 speed grade supports a fast control loop, and the 1.2 V core keeps switching losses low compared with a 3.3 V discrete glue-logic implementation. Configuration over Master SPI from a serial flash lets the same board boot without a dedicated PROM, and the commercial 0 to 85 C grade covers typical enclosure temperatures with margin.
推荐
LED Lighting and Display Controllers
LED signage and lighting control boards need precise current-channel timing, dimming control and often a serial or parallel display protocol, which is exactly the strength of the Spartan-3A fabric in the XC3S50A-4VQG100C. The 176 CLBs can hold shift registers, PWM comparators and refresh counters for several panels, and the 68 I/O drive LED rows or column drivers directly. Because an LED board is often powered from a noisy switching supply, a 1.2 V core running at a 250 MHz clock rate minimises both static and dynamic dissipation inside the controller. Master SPI configuration from a commodity serial flash keeps the BOM simple, and the same part can support both static signage and multiplexed matrix panels.
推荐
Sensor Aggregation and IoT Node Controller
Battery- and solar-powered sensor nodes benefit from the low power draw of a 90 nm Spartan-3A core at 1.2 V, and the XC3S50A-4VQG100C gives enough logic to aggregate several digital sensors, run a protocol stack and manage duty-cycled sleep. The 68 user I/O handle SPI and I2C sensor buses, interrupt lines and radio control signals without external glue, while the 1,584 logic cells absorb framing, filtering and low-level protocol work that would otherwise burden a microcontroller. Configuration from serial flash supports field updates through the radio link. For low-power designs, use the on-chip oscillator and clocking resources and confirm the quiescent current budget for the selected -4 grade in the DS529 DC characteristics.
推荐
Protocol Converters and Interface Bridges
Protocol converter boards are a natural fit for a small FPGA because the function is mostly bus translation and buffering. The XC3S50A-4VQG100C can bridge legacy parallel interfaces to SPI or serial flash controllers, translate proprietary framing, or implement a UART and parallel FIFO pair, all within the 1,584 logic cells and 68 I/O it offers. At a 250 MHz system clock rate, the fabric handles clock domain crossing with flip-flop chains and modest I/O standards, and the 100-pin VQFP keeps the converter small enough for inline PCB modules. Use the Slave Parallel or Slave Serial configuration modes when a companion microcontroller must reload the converter at runtime, and Master SPI when the bridge must come up standalone after power-on.
推荐
Consumer Appliance Sequencers and HMI
Appliance control boards often need to coordinate motors, heaters, valves and a keypad while presenting a simple user interface, and the XC3S50A-4VQG100C centralises that sequencing in a single device. The 68 I/O drive relays and sense switches directly, the 176 CLBs implement the state machine and interlocks, and the remaining logic can run a display refresh routine without a separate display controller chip. Because appliance enclosures are usually warm, the 0 to 85 C commercial grade is well matched, and the low 1.2 V core supply reduces the regulator area needed beside the FPGA. A single serial flash stores the bitstream and calibration data, and the configuration pins are all dedicated, leaving the majority of the 100-pin package available to the application.
推荐
Test, Measurement and Education Platforms
Reconfigurable instrumentation and university prototyping boards benefit from an FPGA that can be reprogrammed for different experiments without new silicon. The XC3S50A-4VQG100C provides 1,584 logic cells and 68 I/O in a 100-pin VQFP, enough for counters, waveform generators, simple serial analysers and student reference designs. The 250 MHz -4 speed grade makes timing experiments meaningful, and Master SPI configuration from a serial flash lets a board be reloaded from a host PC over USB with a simple bootloader. For teaching labs, the low pin count reduces PCB complexity and cost while retaining a genuine FPGA workflow, including bitstream generation, timing analysis and constraint-based pin assignment using the family data sheet DS529 pinout tables.
推荐
推荐产品汇总
工程参考数据： XC3S50A-4VQG100C ——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 | XC3S50A-4VQG100I | XC3S50A-4TQG100C | XC3S50A-5VQG100C | XC3S50A-5TQG100C | XC3S100A-4VQG100C |
|---|---|---|---|---|---|---|
| Package | VQFP-100 (TQG100), 14 x 14 mm | VQFP-100 (TQG100), 14 x 14 mm - same | TQFP-100, 14 x 14 mm - same land pattern, thinner body | VQFP-100 (TQG100), 14 x 14 mm - same | TQFP-100, 14 x 14 mm - same land pattern, thinner body | VQFP-100 (TQG100), 14 x 14 mm - same |
| Brand | AMD (Xilinx) | AMD (Xilinx) | AMD (Xilinx) | AMD (Xilinx) | AMD (Xilinx) | AMD (Xilinx) |
| Device Family | Spartan-3A (XC3S50A) | Spartan-3A (XC3S50A) | Spartan-3A (XC3S50A) | Spartan-3A (XC3S50A) | Spartan-3A (XC3S50A) | Spartan-3A (XC3S100A) |
| Equivalent Logic Gates | 50,000 (50K) | 50,000 - identical | 50,000 - identical | 50,000 - identical | 50,000 - identical | 100,000 (100K) - double the target |
| User I/O | 68 | 68 - identical | 68 - identical | 68 - identical | 68 - identical | 68 - identical |
| Speed Grade / Max Clock Rate | -4 grade, 250 MHz | -4 grade, 250 MHz - identical | -4 grade, 250 MHz - identical | -5 grade, higher clock rate than target | -5 grade, higher clock rate than target | -4 grade, 250 MHz - identical |
| Operating Temperature Range | 0 C to +85 C (commercial, C suffix) | -40 C to +100 C (industrial, I suffix) | 0 C to +85 C - identical | 0 C to +85 C - identical | 0 C to +85 C - identical | 0 C to +85 C - identical |
| Core Supply Voltage | 1.2 V | 1.2 V - identical | 1.2 V - identical | 1.2 V - identical | 1.2 V - identical | 1.2 V - identical |
| Process Technology | 90 nm CMOS | 90 nm CMOS - identical | 90 nm CMOS - identical | 90 nm CMOS - identical | 90 nm CMOS - identical | 90 nm CMOS - identical |
| Configuration Modes | Master Serial, Master SPI, BPI, Slave Parallel (SelectMAP), Slave Serial | Master Serial, Master SPI, BPI, Slave Parallel, Slave Serial | Master Serial, Master SPI, BPI, Slave Parallel, Slave Serial | Master Serial, Master SPI, BPI, Slave Parallel, Slave Serial | Master Serial, Master SPI, BPI, Slave Parallel, Slave Serial | Master Serial, Master SPI, BPI, Slave Parallel, Slave Serial |
关键差异点
- Smallest pin-count Spartan-3A option with a full 68 I/O complement （对比 XC3S50A-4TQG144C)
- Direct industrial-temperature upgrade without a board change （对比 XC3S50A-4VQG100I)
- Timing margin available through the -5 speed grade in the same package （对比 XC3S50A-5VQG100C)
- No cross-manufacturer drop-in exists, protecting design stability （对比 Non-AMD small-footprint FPGA alternatives)
设计说明
The 100-pin VQFP body is only 14 x 14 mm while exposing 68 user I/O, so escape routing is tight. Assign pins so that high-fanout nets such as clock, configuration and dedicated outputs break out on the outer rows, and route high-speed or sensitive nets on the inner rows where ground via stitching provides a short return path. Keep the configuration pins (INIT, DONE, CFGBIN, CFGCLK, CS) on a short, quiet escape and place the serial flash or PROM close to the device so the configuration clock stays clean.
The 1.2 V core rail demands a dedicated low-noise supply section with a bulk capacitor for transient response plus a high-frequency ceramic decoupling capacitor placed directly across the core supply pins. Because Spartan-3A configuration activity is power-supply sensitive, avoid sharing the core regulator with switching converter stages and give the core rail a low-impedance ground return to the same reference plane. Follow the supply decoupling values published in the AMD family data sheet DS529 rather than relying on generic bulk capacitance values.
Estimated: with a 3.3 V I/O supply, a 1.2 V core and a 250 MHz operating clock, the dynamic and static dissipation in the 90 nm core is on the order of a few hundred milliwatts, and a dense utilisation of the 176 CLBs with toggling I/O can push the total higher. Place a continuous ground pour under the device and keep surrounding copper free of thermal breaks so heat spreads into the board rather than the small VQFP body; add thermal vias in the pad region if the layout rules of your fab house allow them.
Two substitution mistakes dominate Spartan-3A designs: confusing the C commercial grade with the I industrial grade, and confusing the 100-pin VQFP with the 144-pin TQG144 or the 256-pin FTG256 options. Both are present in the same family with the same die, so a mismatched part number can yield a device that will not fit the footprint or will fail at temperature extremes. Also remember that the I/O supply rails are independent of the 1.2 V core, so verify each rail and its sequencing before first power-up.
合规信息
RoHS and REACH compliance are listed for this Spartan-3A ordering code. The device is an industrial and commercial grade FPGA and is not AEC-Q100 automotive qualified. Lead-free, halogen-free and conflict-minerals declarations are not stated for this ordering code; request the current material declaration through the Request a Quote form.
