XC3S500E-4PQ208I - Spartan-3E FPGA 208-BFQFP | AMD
Référence : XC3S500E-4PQ208I ✗ Fin de vieXC3S500E-4PQ208I Présentation
A field-programmable gate array is a semiconductor whose digital logic and connectivity are configured after manufacture. Within the product hierarchy, an FPGA is a programmable logic device and a semiconductor. The Spartan-3E family combines configurable logic blocks, programmable I/O, block RAM, dedicated arithmetic resources, and clock-management functions on one device. This integration allows a board to implement control logic, protocol handling, data acquisition, and peripheral interfaces without relying on a collection of discrete logic ICs.
The XC3S500E-4PQ208I includes 10,476 configurable logic cells and 158 user I/O, providing high connectivity for parallel buses, industrial interfaces, and embedded processor peripherals. Its 4 speed grade is intended for designs operating below the 5 speed-grade ceiling. The 208-pin surface-mount package supports higher I/O density than the smaller 100-pin and 132-pin alternatives in the same family, while the 28 mm by 28 mm footprint requires careful PCB routing and thermal analysis.
Spartan-3E devices use configurable logic blocks and distributed or block memory resources to implement digital systems whose requirements may evolve after hardware design begins. The XC3S500E family also supports dedicated multipliers, block RAM, and clock functions for designs requiring arithmetic, local storage, or multiple clock domains. Configuration, pin constraints, timing, and power behavior should be evaluated with the current AMD FPGA design tools before schematic sign-off.
Typical applications include industrial automation controllers, telecommunications line-card logic, data-acquisition systems, embedded control platforms, and instrumentation. In these systems, the high I/O count can connect external memories, transceivers, sensors, and parallel processors, while programmable logic allows firmware-independent field updates. Designers should confirm timing closure for the intended clock frequency and verify that the selected I/O standards suit each interface.
PCB implementation requires a stable multilayer structure, continuous ground-plane coverage, and careful decoupling around every supply pin. The 208-BFQFP lead pitch requires a qualified assembly process, and exposed programming and configuration signals must be routed away from high-speed nodes. A finished design should also include a defined startup or configuration strategy so the FPGA operates deterministically after power application.
This page combines package, logic-resource, temperature, and application guidance with practical drop-in replacement analysis. It also organizes pin, procurement, and selection questions around the device's industrial Spartan-3E positioning, helping engineers compare footprint compatibility, temperature grade, speed grade, and lifecycle needs before releasing a PCB.
Alternatives de remplacement direct pour XC3S500E-4PQ208I — 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 XC3S500E-4PQ208I (même facteur de forme et même empreinte) — différant par Device Type, Operating Temperature, Package Dimensions, RoHS Status.
XC3S500E-4PQG208I
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
XC3S500E-4PQG208C
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →XC3S500E-4PQ208C
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
XC3S500E-5PQ208I
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
XC3S500E-5PQG208I
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
XC3S500E-4PQ208I Valeurs maximales et caractéristiques électriques
| Device Type | Field Programmable Gate Array (FPGA) |
| FPGA Family | Spartan-3E |
| System Gates | 500,000 gates |
| Logic Cells / Logic Blocks | 192 logic blocks |
| Configurable Logic Elements | 10,476 elements |
| User Inputs | 158 inputs |
| User Outputs | 126 outputs |
| Température de fonctionnement | 0°C to 85°C |
| Supply Voltage Range | 1.14 V to 1.26 V |
| Speed Grade | 4 |
| Package Type | 208-BFQFP |
| Package Dimensions | 28 mm × 28 mm |
| Terminal Count | 208 terminals |
| Type de montage | Surface Mount |
| Embedded Memory | 360 kbit |
| Supply Configuration | Lead Free |
| Statut RoHS | unknown |
| REACH Status | unknown |
Guide de configuration des broches du XC3S500E-4PQ208I 28 mm × 28 mm
Configuration des broches du XC3S500E-4PQ208I (boîtier 28 mm × 28 mm). 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 XC3S500E-4PQ208I.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
XC3S500E-4PQ208I convient pour 6 applications: Industrial Automation Controller, Telecommunications Line-Card Logic, Data-Acquisition and Instrumentation, Embedded Control and Peripheral Hub, Motor Control and Sequencing, Programmable Test and Measurement.
Industrial Automation Controller
The XC3S500E-4PQ208I fits industrial automation controllers because its 10,476 configurable logic elements and 158 user I/O can support sequencing, machine-state logic, communications, and parallel peripheral interfaces in one programmable device. The 4 speed grade provides additional timing margin over slower Spartan-3E options when industrial bus and control paths require predictable response. In a controller, the FPGA may acquire sensor or encoder signals, validate interlocks, and generate actuator timing while supervising an embedded processor. Its specified 0°C to 85°C range suits many indoor factory environments, provided the enclosure temperature remains within limits. Before release, verify timing for every clock domain, apply the correct I/O standards, and test power cycling, bus contention, and recovery behavior under representative electrical noise.
Recommandé
Telecommunications Line-Card Logic
The XC3S500E-4PQ208I is suitable for telecommunications line-card logic where programmable parallel datapaths, framing, channelization, and status supervision benefit from parallel FPGA implementation. Its 158 user I/O can connect bus transceivers, memory interfaces, clocks, and control signals, while 360 kbit of embedded memory supports buffering and packet organization. The 4 speed grade is appropriate for designs operating below the family's 5-speed-grade limit. In a line card, the FPGA can bridge parallel and serial data paths, perform clock-domain crossing, and supervise backplane communication. Board-level concerns are critical: isolate high-speed transceiver routing from sensitive control paths, control impedance, and verify the total system budget. Timing closure should be performed under the highest expected traffic and clock conditions rather than relying only on nominal device specifications.
Recommandé
Data-Acquisition and Instrumentation
The XC3S500E-4PQ208I fits data-acquisition and instrumentation systems that need parallel sampling control, trigger sequencing, digital filtering, and data formatting without a large custom ASIC. Its 158 user I/O provide connections for converters, sensors, counters, and status signals, while the 10,476 configurable logic elements support fixed-function datapaths that can be revised through device reconfiguration. The 1.14 V to 1.26 V core range and 208-BFQFP package require a compact, carefully decoupled power-distribution network. Designers should place analog and digital sections in separate power regions, preserve a continuous ground reference, and route high-speed clocks away from sensitive inputs. Calibration, sampling latency, clock-jitter tolerance, and digital filtering must be verified together so the complete measurement path meets the instrument's accuracy specification.
Recommandé
Embedded Control and Peripheral Hub
The XC3S500E-4PQ208I works as a programmable peripheral hub beside an embedded microcontroller, handling protocol conversion, timer functions, PWM generation, and high-speed parallel I/O that would otherwise consume processor pins and interrupts. Its 158 user I/O is especially useful for legacy peripheral buses, display interfaces, and capture signals, while embedded memory can support FIFO and data-alignment functions. The device's I temperature suffix supports operation from 0°C to 85°C in controlled industrial or commercial equipment. Integration should avoid duplicating memory-mapped peripherals already handled by the processor, so partition responsibilities clearly between deterministic FPGA logic and software-controlled functions. Validate bus timing, interrupt latency, reset interactions, and firmware update procedures so the processor and FPGA recover consistently after brownout or configuration events.
Recommandé
Motor Control and Sequencing
The XC3S500E-4PQ208I can support deterministic motor sequencing, encoder decoding, and timing functions in industrial motion-control equipment. Its 10,476 configurable logic elements are suitable for parallel encoder processing and multi-axis sequencing, while 158 user I/O allow connection to position sensors, digital outputs, and drive-control signals. The 4 speed grade can improve timing margin in pulse-generation and position-capture paths compared with lower speed grades, but every external timing requirement must still be checked against real board delays. Keep encoder and drive traces away from switching nodes, provide appropriate isolation where required, and define safe outputs during configuration or fault conditions. The FPGA logic should include watchdog and fail-safe behavior so loss of clocks or invalid position data cannot leave the machine in an unsafe command state.
Recommandé
Programmable Test and Measurement
The XC3S500E-4PQ208I is useful in programmable test systems where sequencing, pattern generation, timing control, and capture logic can be updated without redesigning dedicated hardware. Its high I/O count supports parallel DUT connections, while the embedded memory and configurable logic can implement counters, comparators, and programmable stimulus paths. The 4 speed grade helps preserve margin in coordinated timing tests, and the 0°C to 85°C industrial-temperature range supports controlled laboratory or industrial test environments. For reliable operation, assign outputs to safe states before configuration, validate pin-state behavior after startup, and include test points for configuration and reset signals. Signal-integrity checks should cover clock distribution, board skew, I/O drive strength, and termination, particularly when the FPGA drives long cable or fixture connections.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour XC3S500E-4PQ208I — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | XC3S500E-4PQG208I | XC3S500E-4PQG208C | XC3S500E-4PQ208C | XC3S500E-5PQ208I | XC3S500E-5PQG208I |
|---|---|---|---|---|---|---|
| Brand | AMD | AMD | AMD | AMD | AMD | AMD |
| Package | 208-BFQFP (28x28 mm) | 208-BFQFP (28x28 mm) - same | 208-BFQFP (28x28 mm) - same | 208-BFQFP (28x28 mm) - same | 208-BFQFP (28x28 mm) - same | 208-BFQFP (28x28 mm) - same |
| FPGA Family | Spartan-3E | Spartan-3E | Spartan-3E | Spartan-3E | Spartan-3E | Spartan-3E |
| System Gates | 500,000 gates | 500,000 gates | 500,000 gates | 500,000 gates | 500,000 gates | 500,000 gates |
| Configurable Logic Elements | 10,476 elements | 10,476 elements | 10,476 elements | 10,476 elements | 10,476 elements | 10,476 elements |
| Embedded Memory | 360 kbit | 360 kbit | 360 kbit | 360 kbit | 360 kbit | 360 kbit |
| User I/O | 158 inputs and 126 outputs | 158 inputs and 126 outputs | 158 inputs and 126 outputs | 158 inputs and 126 outputs | 158 inputs and 126 outputs | 158 inputs and 126 outputs |
| Speed Grade | 4 | 4 | 4 | 4 | 5 | 5 |
| Temperature Grade | I: 0°C to 85°C | I: 0°C to 85°C | C: commercial grade | C: commercial grade | I: 0°C to 85°C | I: 0°C to 85°C |
| Core Supply 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 |
Principaux différenciateurs
- Industrial-temperature suffix in the original ordering code (vs XC3S500E-4PQ208C)
- Same 208-BFQFP footprint as the closest ordering variants (vs XC3S500E-4PQG208I)
- Lower speed grade can reduce the performance and power step relative to a 5-speed option (vs XC3S500E-5PQ208I)
Notes de conception
Implement the 208-BFQFP footprint on a multilayer PCB with a continuous ground plane and short supply connections. Place the required bulk and high-frequency decoupling capacitors close to their associated device supply pins, using the AMD Spartan-3E power-guidance section for final values. Keep configuration, clock, and user-I/O escape routes short, and avoid placing test pads or switching-node copper directly beneath sensitive FPGA pins.
Treat the 208-pin lead pitch and 28 mm by 28 mm body as an assembly-critical footprint. Verify pad dimensions, solder-mask clearance, component height, and courtyard against the current package drawing before releasing artwork. Use a qualified assembly process for the dense perimeter leads, and inspect for bridging after reflow. A footprint that resembles another quad flat pack is not sufficient evidence of compatibility.
Design the 1.2 V core rail with adequate transient response for the FPGA's configuration and logic activity. Place local high-frequency decoupling at the device and bulk energy storage near the power source, then validate startup, voltage droop, and sequencing in the complete board. Do not substitute a generic 1.2 V source without checking tolerance, control-loop interaction, and the package-specific requirements in the AMD Spartan-3E documentation.
Route clocks as controlled-impedance nets and avoid stubs or test pads on sensitive clock paths. Match external memory, transceiver, and bus interfaces to their documented timing and loading requirements, using series termination where the driving device and receiver require it. Keep switching-device return currents compact so clock and configuration signals are not displaced by high-di/dt current.
Do not substitute an FPGA solely by logic-cell count. A drop-in candidate must also match the 208-BFQFP package drawing, speed grade, temperature requirement, configuration interface, and pin constraints. In particular, changing the I temperature suffix to C can make a device unsuitable for equipment outside the commercial-temperature range. Validate timing, power, and startup behavior in the target design before production release.
Informations de conformité
The product listing identifies the XC3S500E-4PQ208I as lead free. Explicit RoHS, REACH, halogen-free, and conflict-minerals declarations were not identified for the exact ordering code.
