EPF8282ALI84-4 - FLEX 8000 FPGA 2.5K Gates | Intel / Altera
Référence : EPF8282ALI84-4 ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $18.5 | $18,50 |
| 10 | $15.75 | $157,50 |
| 100 | $12.4 | $1 240,00 |
| 500 | $9.85 | $4 925,00 |
| 1 000 | $8.2 | $8 200,00 |
EPF8282ALI84-4 Présentation
A Field-Programmable Gate Array (FPGA) is a semiconductor device built around an array of configurable logic blocks (CLBs), programmable routing channels, and I/O cells, all controlled by user-loaded SRAM configuration bits. FPGAs sit between discrete logic ICs (74-series glue logic) and ASICs in the design hierarchy: like glue logic they are field-reprogrammable, but unlike ASICs they require no fab cycles, making them ideal for prototyping, low-volume production, and design iteration. The FLEX 8000 family represents one of the early Altera SRAM-based FPGA families, positioned as a register-rich CMOS PLD alternative to mask-programmed gate arrays.
Key features of the EPF8282ALI84-4 include 2,500 typical gates (up to 16,000 usable gates per family), 208 logic cells/elements, in-circuit reconfigurability (ICR) via external configuration devices, 5 V core supply, 125 MHz internal performance, and JTAG-based boundary-scan test support. The 84-pin PLCC package provides through-hole compatibility for legacy and ruggedized designs.
Architecturally, the FLEX 8000 device employs continuous FastTrack interconnect routing with predictable delay, embedded array blocks (EABs) for memory functions, and a SRAM configuration cell that supports infinite reconfiguration. The -4 speed grade places this part in the slower industrial-spec timing bin suitable for cost-sensitive applications.
Typical applications include industrial control logic, glue-logic replacement on legacy 5 V buses, ASIC prototyping, and bridging interfaces between microprocessors and peripherals. The 5 V tolerance makes it a fit for legacy industrial PC/104, VME, and STD bus designs where 3.3 V FPGAs cannot be used.
When designing with the EPF8282ALI84-4, ensure the configuration device (EPC2 or compatible) is correctly wired and that the 5 V supply rail stays within ±5 % tolerance during power-up to avoid partial configuration states. JTAG pins (TDI, TDO, TMS, TCK) must be pulled to known logic levels if unused.
This page synthesizes distributor stock, lifecycle status, and drop-in alternative information for the EPF8282ALI84-4 that is not aggregated in the manufacturer datasheet alone.
Alternatives de remplacement direct pour EPF8282ALI84-4 — 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 EPF8282ALI84-4 (même facteur de forme et même empreinte) — différant par Configuration Method, Mounting Type, Operating Temperature, Usable Gates, Package.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
EPF8282ALC84-4
✅ Remplacement direct✓ En stock
$9.75 / unité
Voir la fiche technique →EPF8282ALC84-4N
✅ Remplacement direct✓ En stock
$23.85 / unité
Voir la fiche technique →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 →EPF8282ALI84-4 Valeurs maximales et caractéristiques électriques
| Family | FLEX 8000 |
| Usable Gates (typical) | 2,500 |
| Usable Gates (family max) | 16,000 |
| Logic Elements / Cells | 208 |
| Maximum Operating Frequency | 125 MHz |
| Process Technology | 0.42 µm CMOS SRAM |
| Core Supply Voltage | 5 V |
| Speed Grade | -4 |
| Boîtier | 84-pin PLCC |
| Type de montage | Through-Hole (PLCC socket) |
| Configuration Method | SRAM (in-circuit reconfigurable) |
| JTAG Boundary Scan | Yes (IEEE 1149.1) |
| Température de fonctionnement | -40C to +85C (industrial) |
| Lead-Free / RoHS | Non-compliant (legacy PLCC, SnPb finish) |
| Logic Block Architecture | Continuous FastTrack interconnect with EABs |
Configuration des broches de EPF8282ALI84-4
| Broche 1 | I/O — General purpose I/O pin |
| Broche 2 | I/O — General purpose I/O pin |
| Broche 3 | I/O — General purpose I/O pin |
| Broche 4 | I/O — General purpose I/O pin |
| Broche 5 | I/O — General purpose I/O pin |
| Broche 6 | I/O — General purpose I/O pin |
| Broche 7 | I/O — General purpose I/O pin |
| Broche 8 | I/O — General purpose I/O pin |
| Broche 9 | I/O — General purpose I/O pin |
| Broche 10 | I/O — General purpose I/O pin |
| Broche 11 | GND — Ground |
| Broche 12 | I/O — General purpose I/O pin |
| Broche 13 | I/O — General purpose I/O pin |
| Broche 14 | I/O — General purpose I/O pin |
| Broche 15 | I/O — General purpose I/O pin |
| Broche 16 | I/O — General purpose I/O pin |
| Broche 17 | I/O — General purpose I/O pin |
| Broche 18 | I/O — General purpose I/O pin |
| Broche 19 | I/O — General purpose I/O pin |
| Broche 20 | I/O — General purpose I/O pin |
| Broche 21 | I/O — General purpose I/O pin |
| Broche 22 | I/O — General purpose I/O pin |
| Broche 23 | I/O — General purpose I/O pin |
| Broche 24 | I/O — General purpose I/O pin |
| Broche 25 | I/O — General purpose I/O pin |
| Broche 26 | I/O — General purpose I/O pin |
| Broche 27 | I/O — General purpose I/O pin |
| Broche 28 | I/O — General purpose I/O pin |
| Broche 29 | I/O — General purpose I/O pin |
| Broche 30 | GND — Ground |
| Broche 31 | I/O — General purpose I/O pin |
| Broche 32 | I/O — General purpose I/O pin |
| Broche 33 | I/O — General purpose I/O pin |
| Broche 34 | I/O — General purpose I/O pin |
| Broche 35 | I/O — General purpose I/O pin |
| Broche 36 | I/O — General purpose I/O pin |
| Broche 37 | I/O — General purpose I/O pin |
| Broche 38 | I/O — General purpose I/O pin |
| Broche 39 | I/O — General purpose I/O pin |
| Broche 40 | I/O — General purpose I/O pin |
| Broche 41 | I/O — General purpose I/O pin |
| Broche 42 | VCC — 5V supply voltage |
| Broche 43 | I/O — General purpose I/O pin |
| Broche 44 | I/O — General purpose I/O pin |
| Broche 45 | I/O — General purpose I/O pin |
| Broche 46 | I/O — General purpose I/O pin |
| Broche 47 | I/O — General purpose I/O pin |
| Broche 48 | I/O — General purpose I/O pin |
| Broche 49 | I/O — General purpose I/O pin |
| Broche 50 | I/O — General purpose I/O pin |
| Broche 51 | I/O — General purpose I/O pin |
| Broche 52 | I/O — General purpose I/O pin |
| Broche 53 | I/O — General purpose I/O pin |
| Broche 54 | I/O — General purpose I/O pin |
| Broche 55 | I/O — General purpose I/O pin |
| Broche 56 | I/O — General purpose I/O pin |
| Broche 57 | I/O — General purpose I/O pin |
| Broche 58 | I/O — General purpose I/O pin |
| Broche 59 | I/O — General purpose I/O pin |
| Broche 60 | GND — Ground |
| Broche 61 | I/O — General purpose I/O pin |
| Broche 62 | I/O — General purpose I/O pin |
| Broche 63 | nCONFIG — Configuration control (active low) |
| Broche 64 | nSTATUS — Configuration status (active low) |
| Broche 65 | CONF_DONE — Configuration done (open-drain) |
| Broche 66 | DCLK — Configuration clock |
| Broche 67 | DATA0 — Configuration data input |
| Broche 68 | TDI — JTAG test data in |
| Broche 69 | TDO — JTAG test data out |
| Broche 70 | TMS — JTAG test mode select |
| Broche 71 | TCK — JTAG test clock |
| Broche 72 | I/O — General purpose I/O pin |
| Broche 73 | I/O — General purpose I/O pin |
| Broche 74 | I/O — General purpose I/O pin |
| Broche 75 | I/O — General purpose I/O pin |
| Broche 76 | I/O — General purpose I/O pin |
| Broche 77 | I/O — General purpose I/O pin |
| Broche 78 | I/O — General purpose I/O pin |
| Broche 79 | I/O — General purpose I/O pin |
| Broche 80 | I/O — General purpose I/O pin |
| Broche 81 | I/O — General purpose I/O pin |
| Broche 82 | I/O — General purpose I/O pin |
| Broche 83 | I/O — General purpose I/O pin |
| Broche 84 | I/O — General purpose I/O pin |
Applications typiques
EPF8282ALI84-4 convient pour 7 applications: Industrial Control Logic, ASIC Prototyping, Legacy 5 V Bus Interface Bridging, Glue-Logic Consolidation, Test and Measurement Equipment, Military / Aerospace Legacy Avionics, Educational FPGA Labs.
Industrial Control Logic
The EPF8282ALI84-4 suits legacy industrial control designs where 5 V tolerance and through-hole PLCC mounting are required. With 208 logic cells and a -40C to +85C industrial temperature range, it absorbs glue logic, state machines, and protocol bridges between microcontrollers and actuators on PC/104, VME, and STD bus backplanes. The 125 MHz fMAX comfortably handles serial-protocol bit-banging and timer-driven control loops, while in-circuit reconfigurability lets field engineers update firmware via JTAG without swapping the board.
Recommandé
ASIC Prototyping
Engineers use the EPF8282ALI84-4 as an early-cycle ASIC prototype for sub-5K-gate designs in 5 V domains. Its SRAM-based fabric supports unlimited reprogramming, allowing iterative design verification before committing to mask-programmed gate arrays. The 84-pin PLCC package is breadboard-friendly, and the FLEX 8000 family integrates embedded array blocks (EABs) that emulate small ROM/RAM blocks. Quartus II design software continues to support legacy FLEX 8000 designs for migration to newer Cyclone or MAX families.
Recommandé
Legacy 5 V Bus Interface Bridging
The EPF8282ALI84-4 bridges incompatible 5 V bus standards such as ISA, PC/104, VME, and STD-bus to modern peripherals. Its 5 V TTL-compatible I/Os interface directly to these buses without level shifters, and its 208 logic cells implement multi-protocol state machines, address decoding, and DMA handshaking. The PLCC-84 footprint drops into standard 5 V through-hole designs, and JTAG boundary-scan compliance simplifies in-system test. Modern 3.3 V FPGAs cannot be used here because 5 V inputs would exceed their absolute maximum ratings.
Recommandé
Glue-Logic Consolidation
Replace 5-15 discrete 74-series TTL/CMOS packages with a single EPF8282ALI84-4 to reduce board area, cost, and signal-integrity risk on legacy 5 V designs. The 208 logic cells absorb address decoding, wait-state generation, interrupt controllers, and peripheral chip-select logic that historically consumed dozens of SSI/MSI packages. The in-system reconfigurability means design changes require only a JTAG download rather than a board re-spin, accelerating development cycles.
Recommandé
Test and Measurement Equipment
Test equipment manufacturers use the EPF8282ALI84-4 as timing generators, pattern generators, and protocol-analyzer state machines in 5 V test systems. The deterministic FastTrack interconnect routing delivers predictable delay, important for sub-nanosecond timing accuracy in bench instruments. The industrial temperature rating ensures stable operation in lab environments with temperature swings, and the JTAG boundary-scan interface simplifies board-level test.
Recommandé
Military / Aerospace Legacy Avionics
Ruggedized through-hole PLCC-84 sockets make the EPF8282ALI84-4 a fit for legacy avionics and defense electronics that demand mechanical robustness, 5 V supply tolerance, and industrial temperature ratings. Although the part is obsolete for new commercial designs, defense depots and MRO organizations continue to repair legacy systems with original FLEX 8000 stock. Long-term availability through obsolete distributors sustains these maintenance pipelines.
Recommandé
Educational FPGA Labs
University digital-logic labs and continuing-education courses continue to use the EPF8282ALI84-4 because its 84-pin PLCC through-hole package is breadboard-friendly and the legacy Quartus II Web Edition toolchain remains free. Students learn VHDL/Verilog design, synthesis, place-and-route, and JTAG programming without dealing with BGA soldering. Despite being obsolete, its low cost on the secondary market keeps it in curricula for introductory VLSI and digital-design courses.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour EPF8282ALI84-4 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | EPF8282ALC84-4 | EPF8282ALC84-4N | EPF8282ALC84-3 | EPF8282ALC84-2 |
|---|---|---|---|---|---|
| Brand | Intel / Altera | Intel / Altera | Intel / Altera | Intel / Altera | Intel / Altera |
| Package | 84-pin PLCC | 84-pin PLCC - same | 84-pin PLCC - same | 84-pin PLCC - same | 84-pin PLCC - same |
| Family | FLEX 8000 | FLEX 8000 | FLEX 8000 | FLEX 8000 | FLEX 8000 |
| Logic Cells | 208 | 208 | 208 | 208 | 208 |
| Typical Usable Gates | 2,500 | 2,500 | 2,500 | 2,500 | 2,500 |
| Core Voltage | 5 V | 5 V | 5 V | 5 V | 5 V |
| Speed Grade | -4 | -4 | -4 | -3 (faster) | -2 (fastest) |
| Temperature Range | Industrial -40C to +85C | Commercial 0C to +70C | Commercial 0C to +70C | Commercial 0C to +70C | Commercial 0C to +70C |
| Lead-Free Finish | No (SnPb legacy) | No (SnPb) | Yes (Pb-free) | No (SnPb) | No (SnPb) |
Principaux différenciateurs
- Industrial temperature grade (-40C to +85C) (vs EPF8282ALC84-4)
- Through-hole 84-pin PLCC package (vs EPF81500AQC240-4)
- 5 V tolerance for legacy buses (vs Cyclone IV E (modern FPGA))
Notes de conception
The EPF8282ALI84-4 requires a stable 5 V ±5 % supply on VCC pins (84-pin PLCC has multiple VCC and GND pins for current distribution). During power-up, VCC must rise monotonically to avoid partial configuration. Add a 10 µF bulk capacitor and 0.1 µF decoupling at each VCC pin within 5 mm of the package. The nCONFIG pin must be held low during power-up until VCC is stable; release it after the supply settles to initiate configuration.
Use a PLCC-84 through-hole socket (e.g., 3M 8484 or equivalent) rated for the operating temperature range. Keep all 5 V traces wide (≥ 0.5 mm) to handle transient inrush during configuration. JTAG chain routing should keep TDI/TDO traces under 50 mm and avoid parallel routing with switching signals. Configure unused I/O pins as outputs driving low to minimize supply noise during configuration.
Do not substitute a 3.3 V FPGA in place of this 5 V part - 5 V signals on input pins would exceed absolute maximum ratings and damage the modern device. Avoid using the EPF8282ALC84-4 (commercial temp) in industrial environments outside 0C to +70C - use only I-grade variants. The -4 speed grade is the slowest; if timing closure fails, migrate to the -3 or -2 speed grade in the same family before redesigning.
Informations de conformité
Legacy PLCC package with SnPb finish, not RoHS compliant. Choose EPF8282ALC84-4N variant for lead-free RoHS-compliance. No AEC-Q100 automotive qualification.
