EPF8282ALC84-4 - 2.5K FLEX 8000 FPGA, 84-PLCC, 5V | Altera
Référence : EPF8282ALC84-4 ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $18.5 | $18,50 |
| 10 | $16.2 | $162,00 |
| 100 | $13.85 | $1 385,00 |
| 500 | $11.4 | $5 700,00 |
| 1 000 | $9.75 | $9 750,00 |
EPF8282ALC84-4 Présentation
An FPGA (Field-Programmable Gate Array) is a programmable logic device belonging to the broader PLD (Programmable Logic Device) family, which itself falls under digital ICs and semiconductors. FPGAs sit hierarchically above simple PLDs and below ASICs, offering higher logic density than CPLDs while preserving field programmability. The FLEX 8000 series combines the high register count and fine-grained interconnect of an FPGA with features normally associated with mask-programmed gate arrays, including in-circuit reconfigurability (ICR) via SRAM configuration cells.
Key features include 2,500 usable gates, 208 logic elements, 26 LABs, and 68 user I/Os. The FLEX 8000 architecture uses CMOS SRAM configuration elements that are loaded at system power-up from an industry-standard parallel EPROM, an Altera serial configuration device (EPC1, EPC1213, EPC1064, or EPC1441), or a system controller. MultiVolt I/O allows the device to interface with mixed-voltage systems supporting 3.3V or 5.0V I/O pin operation across the family.
Typical applications include glue logic replacement, bus interface bridging, state-machine and controller implementation, peripheral emulation in legacy industrial systems, and prototyping of larger ASIC designs. The 5V tolerance and PLCC footprint make it well-suited to long-lifecycle industrial and telecom designs where through-hole or socketed assembly is preferred over fine-pitch QFP.
Designers should note that the SRAM-based configuration is volatile: the device must be reconfigured at every power-up. PCB layouts must respect the PLCC-84 socket's mechanical constraints and provide a robust configuration source. As a -4 speed-grade part, propagation delay is the longest in the family - consult the FLEX 8000 datasheet for timing margins in time-critical paths.
Alternatives de remplacement direct pour EPF8282ALC84-4 — 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 EPF8282ALC84-4 (même facteur de forme et même empreinte) — différant par Configuration Method, Package, Mounting Type, Speed Grade, Operating Temperature.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
EPF8282ALC84-3
✅ Remplacement direct✓ En stock
$9.85 / unité
Voir la fiche technique →EPF8282ALC84-2
✅ Remplacement direct✓ En stock
$8.95 / unité
Voir la fiche technique →EPF8282ALC84-4N
✅ Remplacement direct✓ En stock
$23.85 / unité
Voir la fiche technique →EPF8282ALC84-4 Valeurs maximales et caractéristiques électriques
| Product Family | FLEX 8000 |
| Device Type | Field Programmable Gate Array (FPGA) |
| Usable Gates | 2,500 |
| Logic Elements | 208 |
| Logic Array Blocks (LABs) | 26 |
| User I/Os | 68 |
| Configuration Technology | CMOS SRAM (volatile) |
| Tension d'alimentation | 5 V (4.75 V to 5.25 V) |
| MultiVolt I/O | 3.3 V or 5.0 V I/O selectable |
| Température de fonctionnement | 0 C to +70 C (commercial) |
| Speed Grade | -4 (slowest) |
| Boîtier | 84-pin PLCC (J-Lead, plastic LCC) |
| Logic Family | CMOS |
| In-Circuit Reconfigurability | Yes (ICR via SRAM) |
| Configuration Devices Supported | EPC1, EPC1213, EPC1064, EPC1441 |
| Type de montage | Surface Mount (PLCC socket) |
| Statut RoHS | unknown |
| Lead Finish | unknown |
Configuration des broches de EPF8282ALC84-4
| Broche 1 | I/O — User I/O pin (general-purpose) |
| Broche 2 | I/O — User I/O pin (general-purpose) |
| Broche 3 | I/O — User I/O pin (general-purpose) |
| Broche 4 | I/O — User I/O pin (general-purpose) |
| Broche 5 | I/O — User I/O pin (general-purpose) |
| Broche 6 | I/O — User I/O pin (general-purpose) |
| Broche 7 | I/O — User I/O pin (general-purpose) |
| Broche 8 | I/O — User I/O pin (general-purpose) |
| Broche 9 | I/O — User I/O pin (general-purpose) |
| Broche 10 | I/O — User I/O pin (general-purpose) |
| Broche 11 | I/O — User I/O pin (general-purpose) |
| Broche 12 | I/O — User I/O pin (general-purpose) |
| Broche 13 | VCC — 5V supply voltage |
| Broche 14 | I/O — User I/O pin (general-purpose) |
| Broche 15 | I/O — User I/O pin (general-purpose) |
| Broche 16 | I/O — User I/O pin (general-purpose) |
| Broche 17 | I/O — User I/O pin (general-purpose) |
| Broche 18 | I/O — User I/O pin (general-purpose) |
| Broche 19 | I/O — User I/O pin (general-purpose) |
| Broche 20 | I/O — User I/O pin (general-purpose) |
| Broche 21 | GND — Ground |
| Broche 22 | I/O — User I/O pin (general-purpose) |
| Broche 23 | I/O — User I/O pin (general-purpose) |
| Broche 24 | I/O — User I/O pin (general-purpose) |
| Broche 25 | I/O — User I/O pin (general-purpose) |
| Broche 26 | I/O — User I/O pin (general-purpose) |
| Broche 27 | I/O — User I/O pin (general-purpose) |
| Broche 28 | I/O — User I/O pin (general-purpose) |
| Broche 29 | I/O — User I/O pin (general-purpose) |
| Broche 30 | I/O — User I/O pin (general-purpose) |
| Broche 31 | I/O — User I/O pin (general-purpose) |
| Broche 32 | I/O — User I/O pin (general-purpose) |
| Broche 33 | VCC — 5V supply voltage |
| Broche 34 | I/O — User I/O pin (general-purpose) |
| Broche 35 | I/O — User I/O pin (general-purpose) |
| Broche 36 | I/O — User I/O pin (general-purpose) |
| Broche 37 | I/O — User I/O pin (general-purpose) |
| Broche 38 | I/O — User I/O pin (general-purpose) |
| Broche 39 | I/O — User I/O pin (general-purpose) |
| Broche 40 | I/O — User I/O pin (general-purpose) |
| Broche 41 | I/O — User I/O pin (general-purpose) |
| Broche 42 | I/O — User I/O pin (general-purpose) |
| Broche 43 | I/O — User I/O pin (general-purpose) |
| Broche 44 | I/O — User I/O pin (general-purpose) |
| Broche 45 | GND — Ground |
| Broche 46 | I/O — User I/O pin (general-purpose) |
| Broche 47 | I/O — User I/O pin (general-purpose) |
| Broche 48 | I/O — User I/O pin (general-purpose) |
| Broche 49 | I/O — User I/O pin (general-purpose) |
| Broche 50 | I/O — User I/O pin (general-purpose) |
| Broche 51 | I/O — User I/O pin (general-purpose) |
| Broche 52 | I/O — User I/O pin (general-purpose) |
| Broche 53 | I/O — User I/O pin (general-purpose) |
| Broche 54 | I/O — User I/O pin (general-purpose) |
| Broche 55 | I/O — User I/O pin (general-purpose) |
| Broche 56 | I/O — User I/O pin (general-purpose) |
| Broche 57 | VCC — 5V supply voltage |
| Broche 58 | I/O — User I/O pin (general-purpose) |
| Broche 59 | I/O — User I/O pin (general-purpose) |
| Broche 60 | I/O — User I/O pin (general-purpose) |
| Broche 61 | I/O — User I/O pin (general-purpose) |
| Broche 62 | I/O — User I/O pin (general-purpose) |
| Broche 63 | I/O — User I/O pin (general-purpose) |
| Broche 64 | I/O — User I/O pin (general-purpose) |
| Broche 65 | I/O — User I/O pin (general-purpose) |
| Broche 66 | I/O — User I/O pin (general-purpose) |
| Broche 67 | I/O — User I/O pin (general-purpose) |
| Broche 68 | I/O — User I/O pin (general-purpose) |
| Broche 69 | GND — Ground |
| Broche 70 | I/O — User I/O pin (general-purpose) |
| Broche 71 | I/O — User I/O pin (general-purpose) |
| Broche 72 | I/O — User I/O pin (general-purpose) |
| Broche 73 | I/O — User I/O pin (general-purpose) |
| Broche 74 | I/O — User I/O pin (general-purpose) |
| Broche 75 | I/O — User I/O pin (general-purpose) |
| Broche 76 | I/O — User I/O pin (general-purpose) |
| Broche 77 | I/O — User I/O pin (general-purpose) |
| Broche 78 | I/O — User I/O pin (general-purpose) |
| Broche 79 | I/O — User I/O pin (general-purpose) |
| Broche 80 | I/O — User I/O pin (general-purpose) |
| Broche 81 | VCC — 5V supply voltage |
| Broche 82 | I/O — User I/O pin (general-purpose) |
| Broche 83 | I/O — User I/O pin (general-purpose) |
| Broche 84 | I/O — User I/O pin (general-purpose) |
Applications typiques
EPF8282ALC84-4 convient pour 6 applications: Legacy Industrial Glue Logic, Bus Interface Bridging, ASIC Prototyping and Emulation, State-Machine and Controller Implementation, Peripheral Emulation and Test Equipment, Telecom Line Card Interface Logic.
Legacy Industrial Glue Logic
The EPF8282ALC84-4 is well-suited to legacy industrial glue-logic applications that need ~2,500 gates of flexible combinational and sequential logic in a socketed footprint. With 208 logic elements arranged in 26 LABs and 68 user I/Os, it can replace multiple discrete 74-series TTL/MSI chips and small PAL/GAL devices, simplifying board layout and reducing part count. The 5V supply (4.75V-5.25V) tolerates noisy 5V industrial rails, while the PLCC-84 socketed package allows field replacement without desoldering - critical for long-lifecycle factory automation equipment. Designers should ensure the -4 speed grade propagation delay meets the system timing budget; if not, choose EPF8282ALC84-3 as a faster drop-in.
Recommandé
Bus Interface Bridging
The EPF8282ALC84-4 can bridge between mismatched legacy buses (e.g., ISA, parallel peripheral, or proprietary control buses) in industrial and telecom systems. Its 68 user I/Os comfortably handle address, data, and control signals for 16-bit and small 32-bit bus conversions, while the 5V-tolerant I/Os interface directly to TTL/CMOS peripherals without level shifters. MultiVolt I/O on the family allows 3.3V device interfacing when needed. As a drop-in alternative, the EPF8282ALC84-3 (faster grade) is preferred when bus timing is critical; the EPF8282ALC84-4 is preferred when cost dominates and timing is loose.
Recommandé
ASIC Prototyping and Emulation
The EPF8282ALC84-4 with 2,500 usable gates and 208 logic elements provides an affordable, fast-turnaround platform for prototyping small ASIC and custom logic designs before committing to mask-programmed silicon. Designers can verify state machines, glue-logic blocks, and peripheral controllers in real hardware, then iterate by simply recompiling the design. The 84-pin PLCC package supports socketed evaluation boards for rapid design swaps. For larger prototypes, migrate to the EPF81500A family which provides up to 16,000 usable gates in larger packages.
Recommandé
State-Machine and Controller Implementation
The FLEX 8000 LAB-based architecture is efficient for encoding complex state machines, counters, and sequencer controllers. The EPF8282ALC84-4's 208 logic elements and 68 I/Os can implement multi-state control logic, pulse-width modulation, encoder/decoder logic, and timing generators. SRAM-based in-circuit reconfigurability (ICR) allows field firmware updates without removing the device - useful for evolving industrial controllers. Compared to discrete 74LS series logic, the EPF8282ALC84-4 reduces board area, power, and improves design changeability.
Recommandé
Peripheral Emulation and Test Equipment
The EPF8282ALC84-4 is widely used in test and measurement fixtures and peripheral emulators where its 68 I/Os and configurable logic can mimic the behavior of absent or legacy peripherals. Engineers can emulate memory-mapped devices, generate test patterns, or implement custom protocol decoders. Its 5V tolerance matches the legacy equipment it often replaces, and the PLCC-84 socket allows the same board to host different personalities by swapping pre-programmed chips. Modern alternatives include Cyclone series in QFP packages, but the EPF8282ALC84-4 remains cost-effective for low-volume test gear.
Recommandé
Telecom Line Card Interface Logic
In telecom line-card and backplane designs of the 1990s and 2000s, the EPF8282ALC84-4 functioned as the central glue-logic device implementing framer interfaces, clock distribution, alarm monitoring, and supervisory state machines. The 5V I/O directly drives ECL/TTL level translators of that era. Although modern designs have migrated to FPGAs with SERDES and high-speed transceivers, the EPF8282ALC84-4 remains in service for sustaining-engineering on long-life telecom products. For new designs, use the EPF81500A family or modern Intel Cyclone/MAX devices.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour EPF8282ALC84-4 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | EPF8282ALC84-3 | EPF8282ALC84-2 | EPF8282ALC84-4N |
|---|---|---|---|---|
| Package | 84-PLCC (J-Lead) | 84-PLCC (J-Lead) - same | 84-PLCC (J-Lead) - same | 84-PLCC (J-Lead) - same |
| Brand | Altera | Altera | Altera | Altera |
| Usable Gates | 2,500 | 2,500 | 2,500 | 2,500 |
| Logic Elements | 208 | 208 | 208 | 208 |
| User I/Os | 68 | 68 | 68 | 68 |
| Speed Grade | -4 (slowest) | -3 (faster) | -2 (fastest) | -4 (same as this part) |
| Supply Voltage | 5V (4.75V-5.25V) | 5V (4.75V-5.25V) | 5V (4.75V-5.25V) | 5V (4.75V-5.25V) |
| Operating Temperature | 0C to +70C (commercial) | 0C to +70C (commercial) | 0C to +70C (commercial) | 0C to +70C (commercial) |
Principaux différenciateurs
- Lowest-cost 84-PLCC FLEX 8000 speed grade (vs EPF8282ALC84-3)
- Identical logic resources as faster siblings (vs EPF8282ALC84-2)
- Pb-free variant available for RoHS designs (vs EPF8282ALC84-4N)
Notes de conception
The EPF8282ALC84-4 requires a clean 5V supply at 4.75V-5.25V. Decouple each VCC pin (13, 33, 57, 81) with a 0.1uF ceramic capacitor placed as close to the PLCC socket pin as possible, plus a bulk 10-47uF tantalum or electrolytic at the board entry. Because FLEX 8000 configuration is volatile, any supply glitch or slow ramp can corrupt the SRAM configuration and cause logic errors. Implement a power-on reset supervisor and consider a configuration watchdog if the application cannot tolerate occasional reconfiguration events.
Do not assume that any FLEX 8000 84-pin device is interchangeable: EPF8282A, EPF8282AV, and EPF8636A differ in gate count and I/O mapping. Within the EPF8282A family, the speed-grade suffix (-2/-3/-4) and temperature grade are the only variables - all share the same pinout. Also note that EPF8282ATC144-4 is a 144-pin TQFP, NOT pin-compatible with the 84-pin PLCC. Mismatching package suffixes will cause a PCB rework.
Use a quality PLCC-84 socket (e.g., 3M Textool or equivalent) with through-hole or surface-mount tails matching your PCB process. Keep all 68 user I/O traces short, route clock and configuration signals away from noisy power lines, and provide a dedicated ground plane under the device. Place the configuration EPROM (EPC1/EPC1213/EPC1064/EPC1441) adjacent to the FPGA with short nCONFIG, nSTATUS, and CONF_DONE traces to ensure robust configuration timing.
Informations de conformité
RoHS, REACH, lead-free, and halogen-free statuses are not confirmed in the verified web data for EPF8282ALC84-4. The Pb-free variant EPF8282ALC84-4N is available for RoHS-compliant designs. The part is commercial-temperature (0C to +70C) and not AEC-Q100 qualified for automotive.
