XC3S50A-4VQ100I - 50K Spartan-3A FPGA | AMD | Industrial
Référence : XC3S50A-4VQ100I ✓ ActifXC3S50A-4VQ100I Présentation
A Spartan-3A FPGA is a programmable logic device within the broader semiconductor and FPGA hierarchy. Unlike a fixed-function application-specific integrated circuit, it combines configurable logic, programmable interconnect, memory resources, and general-purpose I/O. Its 100-pin TQFP package makes it suitable for designs requiring moderate logic density and external peripheral connectivity without using a large ball-grid-array package.
The XC3S50A-4VQ100I provides 1,584 logic cells and 68 I/Os, allowing designers to implement control logic, interface protocols, data acquisition, or embedded state machines in one programmable device. The -4 speed designation identifies its performance grade, while the I suffix identifies the industrial-temperature option reported in the verified product data. The 90 nm fabrication process and 1.2 V core supply are consistent with the Spartan-3A generation.
Its architecture supports configuration from several serial and parallel memory interfaces, including Master Serial, Master SPI, BPI, Slave Parallel, SelectMAP, and Slave Serial modes. Configuration storage can therefore use commodity serial flash, parallel flash, or platform flash, depending on board-level requirements. The exact configuration file size, supported I/O standards, and recommended termination network are not included in the supplied source snippets.
Typical uses include industrial automation, communications equipment, test and measurement systems, embedded control, and I/O-intensive consumer or industrial products. The 68 available I/Os support external sensors, displays, memory devices, and communications transceivers, while the 50K-gate device size is appropriate for moderate parallel logic rather than high-throughput processor applications.
Design planning should include correct configuration-pin connections, suitable bypass capacitors, and a verified JTAG programming chain. The 100-TQFP footprint also requires careful escape routing for fine-pitch leads and adequate board area for power distribution. Because a detailed pin map and current pricing were not present in the supplied data, the package pinout is intentionally left unavailable and the commercial tiers require a current quotation.
This product record consolidates verified distributor specifications, same-family drop-in candidates, application guidance, and practical FPGA design considerations. It is intended to help engineers assess package compatibility, configuration strategy, thermal requirements, and procurement without substituting unsupported electrical or lifecycle assumptions.
Alternatives de remplacement direct pour XC3S50A-4VQ100I — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec XC3S50A-4VQ100I (même facteur de forme et même empreinte) — différant par Device Type, Core Supply Voltage, Logic Cells, Package, Configuration Modes.
XC3S50A-4VQG100I
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
XC3S50A-4VQG100C
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
XC3S50A-5VQG100I
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
XC3S50A-5VQG100C
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
XC3S50A-5VQ100I
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
XC3S50A-4VQ100I Valeurs maximales et caractéristiques électriques
| Device Type | Spartan-3A Field Programmable Gate Array (FPGA) |
| System Gates | 50,000 gates |
| Logic Cells | 1,584 cells |
| User I/O Count | 68 I/Os |
| Maximum Performance | 667 MHz |
| Core Supply Voltage | 1.2 V |
| Process Technology | 90 nm |
| Speed Grade | -4 |
| Temperature Grade | Industrial, -40°C to +100°C |
| Boîtier | 100-pin TQFP |
| Package Type | VTQFP |
| Total Terminal Count | 100 terminals |
| Style de montage | Surface Mount |
| Configuration Modes | Master Serial, Master SPI, BPI, Slave Parallel, SelectMAP, Slave Serial |
| Supported Configuration Memory | Platform Flash PROM, commodity serial flash, commodity parallel flash |
| Device Family | Spartan-3A |
Guide de configuration des broches du XC3S50A-4VQ100I vtqfp
Configuration des broches du XC3S50A-4VQ100I (boîtier vtqfp). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour XC3S50A-4VQ100I.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
XC3S50A-4VQ100I convient pour 6 applications: Industrial Automation Controllers, Communications Interface Equipment, Test and Measurement Systems, Embedded Data Acquisition, USB and Peripheral Interface Bridging, Programmable Logic Education and Prototyping.
Industrial Automation Controllers
The XC3S50A-4VQ100I fits industrial automation controllers that require programmable sequencing, parallel data handling, and reliable operation from -40°C to +100°C. Its 1,584 logic cells and 68 I/Os can implement machine-state logic, interlocks, counters, sensor conditioning interfaces, and actuator-control functions in a single 100-pin TQFP device. The -4 speed grade supports timing-sensitive control paths, while the 1.2 V core keeps the device within the established Spartan-3A architecture. Designers should use the AMD DS529-1 (v2.0) configuration and I/O information to select the flash interface, verify supported standards, and confirm timing margins for motors, relays, and industrial sensors.
Recommandé
Communications Interface Equipment
The XC3S50A-4VQ100I is suitable for protocol bridges, line-interface controllers, and communication equipment where parallel logic must be combined with multiple external I/O signals. The device provides 68 I/Os, 1,584 logic cells, and a -4 speed grade, allowing parallel-to-serial logic, framing, filtering, and flow-control functions to be implemented in programmable logic. Its 1.2 V core operates alongside external line transceivers, while the 100-pin TQFP package supports moderate board complexity. The Spartan-3A configuration modes permit serial flash or parallel configuration storage, but designers must verify signal standards, clocking, impedance, and transceiver timing in the complete design.
Recommandé
Test and Measurement Systems
The XC3S50A-4VQ100I can serve as the programmable control and acquisition fabric in compact test and measurement instruments. Its 1,584 logic cells are sufficient for sequencers, timing control, data-format conversion, trigger logic, and instrumentation bus interfaces, while 68 I/Os provide connections to sensors, ADC and DAC devices, displays, and front-panel controls. The stated 667 MHz maximum performance and -4 speed grade allow demanding combinational functions, but actual external timing must be evaluated against system clock requirements. Industrial operation from -40°C to +100°C supports laboratory, factory-test, and field-service equipment when the board power supply, analog components, and calibration system are also appropriately rated.
Recommandé
Embedded Data Acquisition
The XC3S50A-4VQ100I is appropriate for embedded data-acquisition and sensor-conditioning systems that need deterministic programmable logic close to the external interface. The 68 I/Os can connect multiplexers, converters, memory devices, and digital sensors, while the 1,584 logic cells support sampling control, digital filtering, calibration tables, and data packing. A -4 grade provides additional timing margin over lower-speed family options, and the 100-pin TQFP package is easier to route than a fine-pitch BGA on moderate-size boards. Validation should include input timing, output-valid timing, configuration startup behavior, and power sequencing, using the manufacturer datasheet rather than distributor summaries.
Recommandé
USB and Peripheral Interface Bridging
The XC3S50A-4VQ100I can implement a dedicated interface bridge between a host bus and legacy or custom peripheral logic. With 68 I/Os, the device provides enough external connectivity for parallel data, control, handshake, and clock signals, while its 1,584 logic cells support protocol translation, buffering, and timing isolation. The 1.2 V core and -4 speed grade make it suitable for clocked interface logic, although the complete clock tree and I/O voltage domains must remain compatible with connected devices. The Spartan-3A configuration interfaces support serial or parallel boot flash, and the 100-pin TQFP footprint simplifies assembly compared with BGA packages. Validate USB timing separately using the relevant transceiver and host-controller documentation.
Recommandé
Programmable Logic Education and Prototyping
The XC3S50A-4VQ100I is useful for FPGA education, logic prototyping, and embedded coursework because it combines a documented Spartan-3A architecture with 1,584 logic cells and 68 I/Os in an accessible 100-pin TQFP package. Students can implement counters, finite-state machines, serial links, memory controllers, and interface experiments while using the same configuration methods used in industrial designs. The industrial -40°C to +100°C rating provides additional environmental margin, while the 90 nm, 1.2 V implementation represents a practical introduction to FPGA power, timing, configuration, and I/O constraints. Boards should provide a standards-compliant JTAG interface, verified configuration flash, suitable decoupling, and careful TQFP assembly handling.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour XC3S50A-4VQ100I — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | XC3S50A-4VQG100I | XC3S50A-4VQG100C | XC3S50A-5VQG100I | XC3S50A-5VQG100C | XC3S50A-5VQ100I |
|---|---|---|---|---|---|---|
| Package | 100-TQFP | 100-TQFP - same | 100-TQFP - same | 100-TQFP - same | 100-TQFP - same | 100-TQFP - same |
| Brand | AMD | AMD | AMD | AMD | AMD | AMD |
| Logic Cells | 1,584 cells | 1,584 cells | 1,584 cells | 1,584 cells | 1,584 cells | 1,584 cells |
| User I/O | 68 I/Os | 68 I/Os | 68 I/Os | 68 I/Os | 68 I/Os | 68 I/Os |
| System Gates | 50,000 gates | 50,000 gates | 50,000 gates | 50,000 gates | 50,000 gates | 50,000 gates |
| Speed Grade | -4 | -4 - same | -4 - same | -5 - lower speed | -5 - lower speed | -5 - lower speed |
| Temperature Grade | Industrial, -40°C to +100°C | Industrial, -40°C to +100°C | Commercial, -40°C to +85°C | Industrial, -40°C to +100°C | Commercial, -40°C to +85°C | Industrial, -40°C to +100°C |
| Core Supply Voltage | 1.2 V | 1.2 V | 1.2 V | 1.2 V | 1.2 V | 1.2 V |
| Process Technology | 90 nm | 90 nm | 90 nm | 90 nm | 90 nm | 90 nm |
Principaux différenciateurs
- Exact industrial -4 ordering configuration (vs XC3S50A-4VQG100C)
- Higher speed grade within the same family and footprint (vs XC3S50A-5VQG100I)
- Verified exact-MPN sourcing record (vs XC3S50A-4VQG100I)
- Industrial temperature margin over commercial alternatives (vs XC3S50A-5VQG100C)
Notes de conception
Use the complete recommended power-supply and decoupling network from AMD datasheet DS529-1 (v2.0). The verified device uses a 1.2 V core, but the available excerpts do not specify every supply rail, current limit, or capacitor value. Place the required high-frequency and bulk capacitors close to their associated TQFP power pins, provide a low-impedance ground reference, and keep switching-regulator and digital output return currents away from sensitive configuration and I/O return paths. Validate startup sequencing and I/O state during configuration using the manufacturer's power-sequencing guidance.
Reserve the configuration interface and JTAG connections exactly as specified for the selected boot scheme. The Spartan-3A supports Master Serial, Master SPI, BPI, SelectMAP, and Slave Serial configurations, but incorrect mode straps, signal levels, or flash interface wiring can prevent startup. Route configuration signals away from high-current outputs, follow the selected configuration-memory reference layout, and account for the 100-pin TQFP footprint's lead pitch and fanout. Because a complete pin map was unavailable in the supplied excerpts, do not infer configuration assignments from package position alone.
Constrain clock, configuration, and high-speed I/O paths using the timing and I/O guidance in DS529-1 (v2.0). The verified -4 grade and 667 MHz maximum performance indicate substantial logic capability, but they do not guarantee that every board-level interface can operate at that frequency. Apply source-synchronous timing where required, provide appropriate termination for externally driven signals, keep clocks away from switching nodes, and validate setup and hold timing after the final PCB stack-up is known. External memories and transceivers must also be checked for voltage and timing compatibility.
Do not substitute a commercial-temperature C-grade option into an industrial design without checking the maximum ambient temperature. The XC3S50A-4VQ100I is reported as industrial grade from -40°C to +100°C, whereas the C option is limited to the commercial range. Also verify that a proposed same-footprint alternative retains the required -4 speed grade, 1,584 logic cells, 68 I/Os, configuration support, and 1.2 V core. Confirm the exact ordering code, package marking, and current lifecycle status before production release.
Informations de conformité
The supplied excerpts do not explicitly provide RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements. The G ordering suffix occurs in verified product records, but it was not interpreted as a compliance declaration.
