EPF8282ALI84-4 - FLEX 8000 FPGA 2.5K Gates | Intel / Altera
MPN: EPF8282ALI84-4 ✗ Akhir HidupEPF8282ALI84-4 Ringkasan
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.
Alternatif penggantian untuk EPF8282ALI84-4 — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian EPF8282ALI84-4 (sama faktor bentuk dan footprint) — berbeda di dalam Configuration Method, Mounting Type, Operating Temperature, Usable Gates, Package.
EPF8282ALC84-4
✅ Drop-InKontak untuk harga
Lihat Datasheet →EPF8282ALC84-4N
✅ Drop-InKontak untuk harga
Lihat Datasheet →EPF8282ALC84-3
✅ Drop-InKontak untuk harga
Lihat Datasheet →EPF8282ALC84-2
✅ Drop-InKontak untuk harga
Lihat Datasheet →EPF8282ALI84-4 Rating Maksimal & Karakteristik Listrik
| 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 |
| Paket | 84-pin PLCC |
| Tipe Mounting | Through-Hole (PLCC socket) |
| Configuration Method | SRAM (in-circuit reconfigurable) |
| JTAG Boundary Scan | Yes (IEEE 1149.1) |
| Suhu Kerja | -40C to +85C (industrial) |
| Lead-Free / RoHS | Non-compliant (legacy PLCC, SnPb finish) |
| Logic Block Architecture | Continuous FastTrack interconnect with EABs |
Konfigurasi Pin EPF8282ALI84-4
| Pin produk 1 | I/O — General purpose I/O pin |
| Pin produk 2 | I/O — General purpose I/O pin |
| Pin produk 3 | I/O — General purpose I/O pin |
| Pin produk 4 | I/O — General purpose I/O pin |
| Pin produk 5 | I/O — General purpose I/O pin |
| Pin produk 6 | I/O — General purpose I/O pin |
| Pin produk 7 | I/O — General purpose I/O pin |
| Pin produk 8 | I/O — General purpose I/O pin |
| Pin produk 9 | I/O — General purpose I/O pin |
| Pin produk 10 | I/O — General purpose I/O pin |
| Pin produk 11 | GND — Ground |
| Pin produk 12 | I/O — General purpose I/O pin |
| Pin produk 13 | I/O — General purpose I/O pin |
| Pin produk 14 | I/O — General purpose I/O pin |
| Pin produk 15 | I/O — General purpose I/O pin |
| Pin produk 16 | I/O — General purpose I/O pin |
| Pin produk 17 | I/O — General purpose I/O pin |
| Pin produk 18 | I/O — General purpose I/O pin |
| Pin produk 19 | I/O — General purpose I/O pin |
| Pin produk 20 | I/O — General purpose I/O pin |
| Pin produk 21 | I/O — General purpose I/O pin |
| Pin produk 22 | I/O — General purpose I/O pin |
| Pin produk 23 | I/O — General purpose I/O pin |
| Pin produk 24 | I/O — General purpose I/O pin |
| Pin produk 25 | I/O — General purpose I/O pin |
| Pin produk 26 | I/O — General purpose I/O pin |
| Pin produk 27 | I/O — General purpose I/O pin |
| Pin produk 28 | I/O — General purpose I/O pin |
| Pin produk 29 | I/O — General purpose I/O pin |
| Pin produk 30 | GND — Ground |
| Pin produk 31 | I/O — General purpose I/O pin |
| Pin produk 32 | I/O — General purpose I/O pin |
| Pin produk 33 | I/O — General purpose I/O pin |
| Pin produk 34 | I/O — General purpose I/O pin |
| Pin produk 35 | I/O — General purpose I/O pin |
| Pin produk 36 | I/O — General purpose I/O pin |
| Pin produk 37 | I/O — General purpose I/O pin |
| Pin produk 38 | I/O — General purpose I/O pin |
| Pin produk 39 | I/O — General purpose I/O pin |
| Pin produk 40 | I/O — General purpose I/O pin |
| Pin produk 41 | I/O — General purpose I/O pin |
| Pin produk 42 | VCC — 5V supply voltage |
| Pin produk 43 | I/O — General purpose I/O pin |
| Pin produk 44 | I/O — General purpose I/O pin |
| Pin produk 45 | I/O — General purpose I/O pin |
| Pin produk 46 | I/O — General purpose I/O pin |
| Pin produk 47 | I/O — General purpose I/O pin |
| Pin produk 48 | I/O — General purpose I/O pin |
| Pin produk 49 | I/O — General purpose I/O pin |
| Pin produk 50 | I/O — General purpose I/O pin |
| Pin produk 51 | I/O — General purpose I/O pin |
| Pin produk 52 | I/O — General purpose I/O pin |
| Pin produk 53 | I/O — General purpose I/O pin |
| Pin produk 54 | I/O — General purpose I/O pin |
| Pin produk 55 | I/O — General purpose I/O pin |
| Pin produk 56 | I/O — General purpose I/O pin |
| Pin produk 57 | I/O — General purpose I/O pin |
| Pin produk 58 | I/O — General purpose I/O pin |
| Pin produk 59 | I/O — General purpose I/O pin |
| Pin produk 60 | GND — Ground |
| Pin produk 61 | I/O — General purpose I/O pin |
| Pin produk 62 | I/O — General purpose I/O pin |
| Pin produk 63 | nCONFIG — Configuration control (active low) |
| Pin produk 64 | nSTATUS — Configuration status (active low) |
| Pin produk 65 | CONF_DONE — Configuration done (open-drain) |
| Pin produk 66 | DCLK — Configuration clock |
| Pin produk 67 | DATA0 — Configuration data input |
| Pin produk 68 | TDI — JTAG test data in |
| Pin produk 69 | TDO — JTAG test data out |
| Pin produk 70 | TMS — JTAG test mode select |
| Pin produk 71 | TCK — JTAG test clock |
| Pin produk 72 | I/O — General purpose I/O pin |
| Pin produk 73 | I/O — General purpose I/O pin |
| Pin produk 74 | I/O — General purpose I/O pin |
| Pin produk 75 | I/O — General purpose I/O pin |
| Pin produk 76 | I/O — General purpose I/O pin |
| Pin produk 77 | I/O — General purpose I/O pin |
| Pin produk 78 | I/O — General purpose I/O pin |
| Pin produk 79 | I/O — General purpose I/O pin |
| Pin produk 80 | I/O — General purpose I/O pin |
| Pin produk 81 | I/O — General purpose I/O pin |
| Pin produk 82 | I/O — General purpose I/O pin |
| Pin produk 83 | I/O — General purpose I/O pin |
| Pin produk 84 | I/O — General purpose I/O pin |
Aplikasi Umum
EPF8282ALI84-4 cocok untuk 7 aplikasis: 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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk EPF8282ALI84-4 — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | 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) |
Diferensiator Kunci
- Industrial temperature grade (-40C to +85C) (vsEPF8282ALC84-4)
- Through-hole 84-pin PLCC package (vsEPF81500AQC240-4)
- 5 V tolerance for legacy buses (vsCyclone IV E (modern FPGA))
Catatan Desain
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.
Informasi Konformitas
Legacy PLCC package with SnPb finish, not RoHS compliant. Choose EPF8282ALC84-4N variant for lead-free RoHS-compliance. No AEC-Q100 automotive qualification.
