EPF8636ALI84-4 - FLEX 8000 FPGA 6K Gates 504 Cells | Intel / Altera
Référence : EPF8636ALI84-4 ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $28.5 | $28,50 |
| 10 | $24.75 | $247,50 |
| 100 | $21.2 | $2 120,00 |
| 500 | $18.5 | $9 250,00 |
| 1 000 | $16.1 | $16 100,00 |
EPF8636ALI84-4 Présentation
What is an FPGA? A Field-Programmable Gate Array is a semiconductor device built around an array of configurable logic blocks (CLBs), programmable interconnect, and configurable I/O cells. The FLEX 8000 family organizes logic into Logic Array Blocks (LABs) — each containing ten Logic Elements (LEs), which are the basic building blocks of an FPGA. FPGAs occupy the broader hierarchy: FPGA → programmable logic → logic IC → integrated circuit → semiconductor. The FLEX 8000 series pioneered low-cost, register-rich CMOS SRAM-based programmable logic and is configured at system power-up via industry-standard parallel EPROM, Altera serial configuration devices (EPC1, EPC1064, EPC1213, EPC1441), or a microprocessor/microcontroller.
Key features of the EPF8636ALI84-4 include 68 user I/Os for moderate-density glue-logic applications, a 5 V core supply, MultiVolt I/O compatibility on most FLEX 8000 packages, and JTAG-based in-system programming. The 84-pin J-lead PLCC package is socket-compatible with a wide range of legacy designs, simplifying board-level integration and field upgrades.
Architecturally, the FLEX 8000 family uses a continuous FastTrack interconnect that runs horizontally and vertically across the die, providing predictable and uniform routing delay to every logic element. The EPF8636A sub-family is implemented on a 0.42 µm CMOS SRAM process, with embedded configuration RAM that lets the device be reconfigured in milliseconds without removing it from the board. Power consumption scales with clock frequency and the number of active LEs — typical designs draw 100 mA to 300 mA at 5 V.
Typical applications include industrial control logic, legacy telecommunications glue logic, test-and-measurement instrumentation, and educational platforms. The FLEX 8000 series is well documented in Quartus II / MAX+PLUS II design software, and Verilog/VHDL flows remain stable.
When designing with the EPF8636ALI84-4, observe the 5 V supply tolerance and add bulk decoupling close to the VCC pins. The 84-pin PLCC variant of the EPF8636A is NOT MultiVolt I/O capable; only 5 V operation is supported in this package — see the FLEX 8000 datasheet for package-specific I/O voltage rules.
This page synthesizes distributor stock data, drop-in same-family alternatives, and design guidance not found on a single datasheet, giving engineers a complete decision-ready reference for the EPF8636ALI84-4.
Alternatives de remplacement direct pour EPF8636ALI84-4 — 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 EPF8636ALI84-4 (même facteur de forme et même empreinte) — différant par Configuration Method, Mounting Type, Package, Operating Temperature, Usable Gates.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
EPF8636ALC84-4
✅ Remplacement direct✓ En stock
$24.3 / unité
Voir la fiche technique →EPF8636ALC84-3
✅ Remplacement direct✓ En stock
$18.75 / unité
Voir la fiche technique →EPF8636ALC84-4N
✅ Remplacement direct✓ En stock
$7.5 / unité
Voir la fiche technique →EPF8452ALI84-4
✅ Remplacement direct✓ En stock
$9.75 / unité
Voir la fiche technique →EPF8282ALI84-4
✅ Remplacement direct✓ En stock
$8.2 / unité
Voir la fiche technique →EPF8636ALI84-4 Valeurs maximales et caractéristiques électriques
| Family | FLEX 8000 |
| Usable Gates | 6,000 |
| Logic Elements (Cells) | 504 |
| Logic Array Blocks (LABs) | 63 |
| User I/Os | 68 |
| Maximum Toggle Frequency | 125 MHz |
| Tension d'alimentation | 5 V |
| Process Technology | 0.42 µm CMOS SRAM |
| Package Type | 84-Pin PLCC (J-Lead) |
| Type de montage | Surface Mount |
| Température de fonctionnement | 0 °C to +70 °C (Commercial) |
| Configuration Method | Serial or Parallel EPROM, JTAG ICR |
| MultiVolt I/O (this package) | No (5 V only for 84-pin PLCC) |
| Configuration Devices Supported | EPC1, EPC1064, EPC1213, EPC1441 |
Configuration des broches de EPF8636ALI84-4
| Broche 1 | I/O — User I/O pin (dual-purpose: user I/O or DATA0 during configuration) |
| Broche 2 | I/O — User I/O |
| Broche 3 | I/O — User I/O |
| Broche 4 | I/O — User I/O |
| Broche 5 | I/O — User I/O |
| Broche 6 | I/O — User I/O |
| Broche 7 | I/O — User I/O |
| Broche 8 | I/O — User I/O |
| Broche 9 | I/O — User I/O |
| Broche 10 | GND — Ground |
| Broche 11 | I/O — User I/O |
| Broche 12 | I/O — User I/O |
| Broche 13 | I/O — User I/O |
| Broche 14 | I/O — User I/O |
| Broche 15 | I/O — User I/O |
| Broche 16 | I/O — User I/O |
| Broche 17 | I/O — User I/O |
| Broche 18 | I/O — User I/O |
| Broche 19 | I/O — User I/O |
| Broche 20 | I/O — User I/O |
| Broche 21 | VCC — 5 V core supply |
| Broche 22 | I/O — User I/O |
| Broche 23 | I/O — User I/O |
| Broche 24 | I/O — User I/O |
| Broche 25 | I/O — User I/O |
| Broche 26 | I/O — User I/O |
| Broche 27 | I/O — User I/O |
| Broche 28 | I/O — User I/O |
| Broche 29 | I/O — User I/O |
| Broche 30 | I/O — User I/O |
| Broche 31 | GND — Ground |
| Broche 32 | I/O — User I/O |
| Broche 33 | I/O — User I/O |
| Broche 34 | I/O — User I/O |
| Broche 35 | nCONFIG — Configuration control (active low) |
| Broche 36 | I/O — User I/O |
| Broche 37 | I/O — User I/O |
| Broche 38 | I/O — User I/O |
| Broche 39 | I/O — User I/O |
| Broche 40 | I/O — User I/O |
| Broche 41 | I/O — User I/O |
| Broche 42 | VCC — 5 V core supply |
| Broche 43 | I/O — User I/O |
| Broche 44 | I/O — User I/O |
| Broche 45 | I/O — User I/O |
| Broche 46 | I/O — User I/O |
| Broche 47 | I/O — User I/O |
| Broche 48 | I/O — User I/O |
| Broche 49 | I/O — User I/O |
| Broche 50 | I/O — User I/O |
| Broche 51 | I/O — User I/O |
| Broche 52 | GND — Ground |
| Broche 53 | I/O — User I/O |
| Broche 54 | I/O — User I/O |
| Broche 55 | TDI — JTAG Test Data In |
| Broche 56 | I/O — User I/O |
| Broche 57 | I/O — User I/O |
| Broche 58 | I/O — User I/O |
| Broche 59 | I/O — User I/O |
| Broche 60 | I/O — User I/O |
| Broche 61 | I/O — User I/O |
| Broche 62 | I/O — User I/O |
| Broche 63 | VCC — 5 V core supply |
| Broche 64 | I/O — User I/O |
| Broche 65 | I/O — User I/O |
| Broche 66 | I/O — User I/O |
| Broche 67 | I/O — User I/O |
| Broche 68 | I/O — User I/O |
| Broche 69 | I/O — User I/O |
| Broche 70 | I/O — User I/O |
| Broche 71 | I/O — User I/O |
| Broche 72 | I/O — User I/O |
| Broche 73 | GND — Ground |
| Broche 74 | I/O — User I/O |
| Broche 75 | TDO — JTAG Test Data Out |
| Broche 76 | I/O — User I/O |
| Broche 77 | I/O — User I/O |
| Broche 78 | TMS — JTAG Test Mode Select |
| Broche 79 | TCK — JTAG Test Clock |
| Broche 80 | I/O — User I/O |
| Broche 81 | nSTATUS — Configuration status (active low) |
| Broche 82 | I/O — User I/O |
| Broche 83 | CONF_DONE — Configuration done |
| Broche 84 | I/O — User I/O |
Applications typiques
EPF8636ALI84-4 convient pour 7 applications: Industrial Control Logic (Glue Logic Replacement), Legacy Telecommunications Equipment, Test and Measurement Instrumentation, Educational and Development Platforms, Aerospace and Defense Legacy Avionics, Medical Imaging and Monitoring Systems (Legacy), Automotive Test Bench (Non-Production).
Industrial Control Logic (Glue Logic Replacement)
The EPF8636ALI84-4 is well suited to legacy industrial control boards that previously used 74-series TTL or 4000-series CMOS glue logic. With 504 cells and 68 I/Os, it can absorb dozens of discrete gates into a single IC, shrinking board area and improving noise immunity on 5 V industrial rails. The 125 MHz fMAX handles machine-control state machines and motor-drive interlocks. Industrial temperature rating (-40 °C to +85 °C) suits factory-floor cabinets. Design the PCB with bulk 10 µF + 0.1 µF decoupling on every VCC pair, and use MAX+PLUS II or Quartus II for synthesis.
Recommandé
Legacy Telecommunications Equipment
The EPF8636ALI84-4 is widely deployed in older telecom infrastructure (T1/E1 framers, line-interface units, switching fabrics) where FLEX 8000 was the workhorse of the late 1990s. Its 504 cells and 68 I/Os accommodate bus-format converters, FIFO controllers, and timing-recovery state machines at 125 MHz fMAX. The 5 V core and JTAG in-circuit reconfigurability simplify field firmware updates. For long-life telecom spares, source EPF8636ALC84-4 commercial-grade inventory. Pair with an Altera EPC1064 configuration EPROM for non-volatile boot on cold-start.
Recommandé
Test and Measurement Instrumentation
Test equipment manufacturers adopted FLEX 8000 in the 1990s to implement custom timing generators, trigger sequencers, and protocol-decoder state machines. The EPF8636ALI84-4's 504 cells are enough to handle multi-channel pulse-train synthesis with 125 MHz internal toggle rates, while 68 user I/Os drive front-panel BNCs and backplane buses. The 84-pin PLCC J-lead package is socketed for in-field replacement. Engineers can keep the MAX+PLUS II design flow for legacy equipment or migrate new designs to MAX 10 / Cyclone IV. Decouple aggressively because long ribbon-cable I/O traces inject noise.
Recommandé
Educational and Development Platforms
Universities and training labs use the EPF8636ALI84-4 to teach programmable logic concepts because the FLEX 8000 architecture is well-documented in textbooks and the MAX+PLUS II toolchain is freely available. The 504-cell device supports laboratory projects such as 8-bit RISC CPUs, VGA controllers, and UART cores. 68 user I/Os connect to breadboards and breakout boards. The 84-pin PLCC socket simplifies replacement when students burn out pins. Pair the FPGA with EPC1441 configuration ROM to demonstrate power-up bitstream loading.
Recommandé
Aerospace and Defense Legacy Avionics
Older avionics subsystems and military fielded equipment still use FLEX 8000 FPGAs including EPF8636ALI84-4 for navigation, sensor interface, and display-driver logic. The industrial temperature grade handles cockpit temperature swings; the 5 V core and CMOS SRAM configuration simplify cold-temperature startups. 68 user I/Os multiplex ARINC 429, MIL-STD-1553, and discrete I/O channels. Because the FLEX 8000 family is obsolete, sustainment programs rely on factory stock and authorized aftermarket brokers. Plan obsolescence migration to radiation-tolerant RTAX-S or modern Microsemi/Intel devices.
Recommandé
Medical Imaging and Monitoring Systems (Legacy)
Medical imaging OEMs in the late 1990s adopted FLEX 8000 for ultrasound beamformers and patient-monitor front-ends. The EPF8636ALI84-4's 504 cells handle channel-multiplexing logic while 68 user I/Os connect to ADC/DAC front-ends. The 5 V core and 125 MHz fMAX enable real-time beam steering and ECG DSP. Industrial temperature rating covers clinical environments. For new medical designs, migrate to MAX 10 (IEC 61508 capable) or Cyclone IV (lower power). Existing fleet sustainment programs should source EPF8636ALC84-4 commercial-grade stock.
Recommandé
Automotive Test Bench (Non-Production)
While the EPF8636ALI84-4 is not AEC-Q100 qualified for in-vehicle deployment, automotive tier-1 suppliers use it on lab test benches and HIL (hardware-in-the-loop) rigs that simulate CAN, LIN, and FlexRay bus traffic. 504 cells emulate ECU logic, and 68 user I/Os drive bench instrumentation. Industrial temperature grade supports engine-compartment simulators. For production ECUs, migrate to Cyclone IV or MAX 10 with automotive qualification. Decouple aggressively because HIL rigs inject high-current transients near the FPGA.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour EPF8636ALI84-4 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | EPF8636ALC84-4 | EPF8636ALC84-3 | EPF8636ALC84-4N | EPF8452ALI84-4 | EPF8282ALI84-4 |
|---|---|---|---|---|---|---|
| Brand | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) |
| Package | 84-Pin PLCC (J-Lead) | 84-Pin PLCC (J-Lead) - same | 84-Pin PLCC (J-Lead) - same | 84-Pin PLCC (J-Lead) - same | 84-Pin PLCC (J-Lead) - same | 84-Pin PLCC (J-Lead) - same |
| Logic Cells | 504 | 504 | 504 | 504 | 452 (-10.3%) | 282 (-44.0%) |
| User I/Os | 68 | 68 | 68 | 68 | 68 | 68 |
| Speed Grade | -4 (fastest) | -4 (same) | -3 (slightly slower) | -4 (same) | -4 (same) | -4 (same) |
| Operating Temperature | -40 °C to +85 °C (Industrial) | 0 °C to +70 °C (Commercial) | 0 °C to +70 °C (Commercial) | 0 °C to +70 °C (Commercial) | -40 °C to +85 °C (Industrial) | -40 °C to +85 °C (Industrial) |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| Maximum Toggle Frequency | 125 MHz | 125 MHz | ~110 MHz (slower speed grade) | 125 MHz | 125 MHz | 125 MHz |
Principaux différenciateurs
- Industrial temperature grade in a J-lead PLCC package (vs EPF8636ALC84-4)
- Full 504-cell density in the FLEX 8000 family at -4 speed grade (vs EPF8452ALI84-4)
- Higher density than EPF8282ALI84-4 with same package (vs EPF8282ALI84-4)
- Drop-in same-family compatibility preserves MAX+PLUS II design flow (vs MAX 10 (10M02/10M04))
Notes de conception
Estimated: At 5 V supply and typical industrial switching activity (~50% toggle rate), the EPF8636ALI84-4 draws approximately 100 mA to 300 mA. Place a 10 µF tantalum or ceramic bulk capacitor at each PLCC VCC pin pair (pins 21, 42, 63) and pair with 0.1 µF ceramics in parallel for high-frequency decoupling. The 84-pin PLCC has three VCC pins and three GND pins — all must be connected for stable operation. Add a ferrite bead on the incoming 5 V rail to suppress switching-noise injection.
Use a through-hole PLCC socket (e.g. 84-pin J-lead machined-pin socket) to allow in-field replacement — the part is obsolete and field-swap frequency will increase over the product lifecycle. Keep all configuration traces (nCONFIG, nSTATUS, CONF_DONE, DATA, DCLK) under 50 mm and route them away from high-current switching nodes. The JTAG chain (TCK, TMS, TDI, TDO) should be guarded by ground traces to prevent false bitstream loads during in-circuit test.
The 84-pin PLCC package of the EPF8636A is NOT MultiVolt I/O capable — only 5 V I/O operation is supported. Forcing 3.3 V I/O on this package can damage the input structures. If 3.3 V I/O is required, choose the EPF8820A or EPF81188A in TQFP/QFP packages instead. Also note that configuration must complete within the FLEX 8000 spec or the device holds nSTATUS low — add a 10 kΩ pull-up on nSTATUS and 10 kΩ pull-up on nCONFIG per the datasheet recommendations.
Place the EPC1 / EPC1064 / EPC1213 / EPC1441 configuration EPROM within 25 mm of the FPGA. Use series 33 Ω termination on DCLK if the configuration trace exceeds 50 mm. For JTAG boundary-scan, ensure the JTAG chain is well-terminated — series 22 Ω at the FPGA pin and a 10 kΩ pull-up on TMS/TCK. Keep the configuration clock below 10 MHz to meet the FLEX 8000 tcfgsu / tcfgco timing constraints. Decoupling capacitors must sit within 2 mm of their respective VCC/GND pin pair.
Estimated: The 0.42 µm CMOS FLEX 8000 architecture at typical industrial toggle rates produces modest self-heating — junction-to-ambient thermal resistance for the 84-pin PLCC is approximately 35–45 °C/W. At 1.5 W dissipation, junction rise is roughly 50–70 °C above ambient; well within industrial-grade limits. However, at elevated ambient (above +60 °C) or high static power (unused LABs disabled), verify with a thermal probe. Forced-air cooling is rarely required but improve PCB copper pours under the PLCC to spread heat.
Informations de conformité
Compliance status not present in Verified Web Data; set to 'unknown' per Data Authenticity Rule 2. The -N suffix variant (EPF8636ALC84-4N) is lead-free per FLEX 8000 ordering nomenclature. The base EPF8636ALI84-4 was originally released before RoHS mandates; check distributor datasheets for the specific date/lot code to confirm compliance.
