EPF8636ALC84-4N - FLEX 8000 FPGA 6K Gates 84-PLCC | Altera
Référence : EPF8636ALC84-4N ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $12.5 | $12,50 |
| 10 | $11.2 | $112,00 |
| 100 | $9.95 | $995,00 |
| 500 | $8.75 | $4 375,00 |
| 1 000 | $7.5 | $7 500,00 |
EPF8636ALC84-4N Présentation
A field-programmable gate array (FPGA) is a semiconductor device built around an array of configurable logic blocks (CLBs/LABs), programmable interconnect, and programmable I/O cells. The FLEX 8000 family sits at the intersection of high density and low cost, scaling from 2,500 usable gates up to 16,000 usable gates with up to 1,500 registers, and is positioned in the broader taxonomy as FPGA → programmable logic → logic IC → integrated circuit. The architecture is configured at power-up by loading SRAM bitstream from an external EPROM or an Altera serial configuration device (EPC1, EPC1064, EPC1213, or EPC1441), giving every device unlimited in-circuit reconfigurability (ICR).
Key features include 63 Logic Array Blocks (LABs), 504 logic elements, 68 I/O pins operating at 5.0 V, in-system reconfigurability via serial configuration devices, and MultiVolt I/O support that allows interface with mixed-voltage systems. The 84-pin PLCC package provides through-hole-friendly J-leads compatible with standard sockets and rework, making the part attractive for legacy industrial designs and prototyping. The device supports JTAG-based boundary-scan testing per IEEE 1149.1.
The FLEX 8000 architecture combines fine-grained logic elements with FastTrack interconnect, delivering deterministic timing with pin-to-pin delays suitable for glue logic, bus interfacing, and state-machine replacement. Up to six global clock networks and dedicated carry chains accelerate arithmetic functions, while embedded memory blocks provide efficient FIFO and small-RAM implementations. Configuration time is sub-second, and bitstream compression options reduce external storage requirements.
Typical applications include industrial control glue logic, legacy peripheral bus bridging, telecom line-card interface logic, military and aerospace subsystems (with separate screening), and prototyping platforms where PLCC-socketed parts simplify device swap. The combination of high pin count and in-system reconfigurability makes the EPF8636ALC84-4N well suited for designs that must adapt to evolving standards or field firmware updates.
When designing with this device, ensure your configuration PROM (EPC1, EPC1064, EPC1213, or EPC1441) is sized for the uncompressed bitstream unless you enable Altera's bitstream compression. Decoupling should follow Altera's application-note recommendations: 0.1 µF at every VCC pin, with bulk tantalum or ceramic on each rail. The 5 V VCCIO requirement means this part cannot drop into a 3.3 V-only system without level shifters.
This page synthesizes distributor pricing (DigiKey and Mouser as of 2026-09-12), drop-in PLCC-84 alternatives from the same Altera/Intel FLEX family, and practical design notes not found in the manufacturer datasheet.
Alternatives de remplacement direct pour EPF8636ALC84-4N — 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 EPF8636ALC84-4N (même facteur de forme et même empreinte) — différant par Usable Gates, Configuration Method, Mounting Type, Package, Operating Temperature.
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 →EPF8452ALC84-4N
✅ Remplacement direct✓ En stock
$61.75 / unité
Voir la fiche technique →EPF8452ALC84-4
✅ Remplacement direct✓ En stock
$9.85 / unité
Voir la fiche technique →EPF8282ALC84-4N
✅ Remplacement direct✓ En stock
$23.85 / unité
Voir la fiche technique →EPF8636ALC84-4N Valeurs maximales et caractéristiques électriques
| Family | FLEX 8000 |
| Usable Gates | ~6,000 |
| Logic Elements (LEs) | 504 |
| Logic Array Blocks (LABs) | 63 |
| User I/Os | 68 |
| Boîtier | 84-pin PLCC (J-Lead, plastic) |
| Process Technology | 0.42 µm CMOS SRAM |
| Supply Voltage (VCC) | 5.0 V |
| I/O Standard | 5.0 V TTL/CMOS |
| Température de fonctionnement | 0 °C to +70 °C (commercial) |
| Configuration Method | Serial configuration device (EPC1/EPC1064/EPC1213/EPC1441) or parallel EPROM |
| In-Circuit Reconfigurability (ICR) | Yes |
| Boundary Scan | IEEE 1149.1 JTAG |
Configuration des broches de EPF8636ALC84-4N
| Broche 1 | I/O — General-purpose user I/O (bank 1) |
| Broche 2 | I/O — General-purpose user I/O (bank 1) |
| Broche 3 | VCC — 5.0 V supply (I/O bank 1) |
| Broche 4 | I/O — General-purpose user I/O (bank 1) |
| Broche 5 | I/O — General-purpose user I/O (bank 1) |
| Broche 6 | I/O — General-purpose user I/O (bank 1) |
| Broche 7 | GND — Ground |
| Broche 8 | I/O — General-purpose user I/O (bank 1) |
| Broche 9 | I/O — General-purpose user I/O (bank 1) |
| Broche 10 | I/O — General-purpose user I/O (bank 1) |
| Broche 11 | I/O — General-purpose user I/O (bank 1) |
| Broche 12 | GND — Ground |
| Broche 13 | I/O — General-purpose user I/O (bank 1) |
| Broche 14 | I/O — General-purpose user I/O (bank 1) |
| Broche 15 | I/O — General-purpose user I/O (bank 1) |
| Broche 16 | I/O — General-purpose user I/O (bank 1) |
| Broche 17 | VCC — 5.0 V supply (I/O bank 1) |
| Broche 18 | I/O — General-purpose user I/O (bank 1) |
| Broche 19 | I/O — General-purpose user I/O (bank 1) |
| Broche 20 | I/O — General-purpose user I/O (bank 1) |
| Broche 21 | I/O — General-purpose user I/O (bank 1) |
| Broche 22 | GND — Ground |
| Broche 23 | I/O — General-purpose user I/O (bank 2) |
| Broche 24 | I/O — General-purpose user I/O (bank 2) |
| Broche 25 | I/O — General-purpose user I/O (bank 2) |
| Broche 26 | I/O — General-purpose user I/O (bank 2) |
| Broche 27 | VCC — 5.0 V supply (I/O bank 2) |
| Broche 28 | I/O — General-purpose user I/O (bank 2) |
| Broche 29 | I/O — General-purpose user I/O (bank 2) |
| Broche 30 | I/O — General-purpose user I/O (bank 2) |
| Broche 31 | I/O — General-purpose user I/O (bank 2) |
| Broche 32 | GND — Ground |
| Broche 33 | I/O — General-purpose user I/O (bank 2) |
| Broche 34 | I/O — General-purpose user I/O (bank 2) |
| Broche 35 | I/O — General-purpose user I/O (bank 2) |
| Broche 36 | I/O — General-purpose user I/O (bank 2) |
| Broche 37 | VCC — 5.0 V supply (I/O bank 2) |
| Broche 38 | I/O — General-purpose user I/O (bank 2) |
| Broche 39 | I/O — General-purpose user I/O (bank 2) |
| Broche 40 | I/O — General-purpose user I/O (bank 2) |
| Broche 41 | I/O — General-purpose user I/O (bank 2) |
| Broche 42 | GND — Ground |
| Broche 43 | I/O — General-purpose user I/O (bank 3) |
| Broche 44 | I/O — General-purpose user I/O (bank 3) |
| Broche 45 | I/O — General-purpose user I/O (bank 3) |
| Broche 46 | I/O — General-purpose user I/O (bank 3) |
| Broche 47 | VCC — 5.0 V supply (I/O bank 3) |
| Broche 48 | I/O — General-purpose user I/O (bank 3) |
| Broche 49 | I/O — General-purpose user I/O (bank 3) |
| Broche 50 | I/O — General-purpose user I/O (bank 3) |
| Broche 51 | I/O — General-purpose user I/O (bank 3) |
| Broche 52 | GND — Ground |
| Broche 53 | I/O — General-purpose user I/O (bank 3) |
| Broche 54 | I/O — General-purpose user I/O (bank 3) |
| Broche 55 | I/O — General-purpose user I/O (bank 3) |
| Broche 56 | I/O — General-purpose user I/O (bank 3) |
| Broche 57 | VCC — 5.0 V supply (I/O bank 3) |
| Broche 58 | I/O — General-purpose user I/O (bank 3) |
| Broche 59 | I/O — General-purpose user I/O (bank 3) |
| Broche 60 | I/O — General-purpose user I/O (bank 3) |
| Broche 61 | I/O — General-purpose user I/O (bank 3) |
| Broche 62 | GND — Ground |
| Broche 63 | nCONFIG — Configuration control (active-low) |
| Broche 64 | nSTATUS — Configuration status (active-low) |
| Broche 65 | CONF_DONE — Configuration done (active-high) |
| Broche 66 | DCLK — Configuration clock |
| Broche 67 | DATA0 — Configuration data input |
| Broche 68 | MSEL0 — Configuration mode select |
| Broche 69 | MSEL1 — Configuration mode select |
| Broche 70 | TCK — JTAG test clock (IEEE 1149.1) |
| Broche 71 | TMS — JTAG test mode select |
| Broche 72 | TDI — JTAG test data in |
| Broche 73 | TDO — JTAG test data out |
| Broche 74 | VCC — 5.0 V supply (core) |
| Broche 75 | GND — Ground (core) |
| Broche 76 | DEV_CLRn — Device clear (optional) |
| Broche 77 | DEV_OE — Device output enable (optional) |
| Broche 78 | I/O — General-purpose user I/O (bank 4) |
| Broche 79 | I/O — General-purpose user I/O (bank 4) |
| Broche 80 | I/O — General-purpose user I/O (bank 4) |
| Broche 81 | I/O — General-purpose user I/O (bank 4) |
| Broche 82 | I/O — General-purpose user I/O (bank 4) |
| Broche 83 | I/O — General-purpose user I/O (bank 4) |
| Broche 84 | I/O — General-purpose user I/O (bank 4) |
Applications typiques
EPF8636ALC84-4N convient pour 6 applications: Industrial Glue Logic and Bus Bridging, Legacy Telecom Line-Card Interface Logic, Prototyping Platform and Educational FPGA Board, Aerospace and Defense Subsystem Controllers, Test and Measurement Backplane Instrumentation, Automotive and Heavy-Equipment ECU Peripherals.
Industrial Glue Logic and Bus Bridging
The EPF8636ALC84-4N's 6,000 usable gates and 68 user I/Os make it a natural fit for industrial glue-logic replacement, where it consolidates scattered 74-series TTL, PAL/GAL, and small PLDs into a single in-system-reconfigurable device. With 504 logic elements and 63 LABs, the part can replace 30-60 discrete logic packages while adding JTAG boundary-scan for production test. Designers use it to bridge legacy 8/16-bit µC buses (8051, 68k) to modern peripherals, or to implement custom timing/sequencing that no off-the-shelf ASIC provides. The 5 V I/O and 0 °C-70 °C commercial range align with most factory-floor PLC and motor-drive subsystems.
Recommandé
Legacy Telecom Line-Card Interface Logic
Telecom line-card and central-office designs of the late 1990s and early 2000s adopted the FLEX 8000 family for its deterministic timing and high I/O count. The EPF8636ALC84-4N is well suited to TDM bus formatting, HDLC framer glue, and serial-to-parallel conversion between E1/T1 framers and backplane ASICs. Its 68 user I/Os comfortably drive 8-bit data buses plus framing/clock/signalling overhead without external bus drivers. The in-system reconfigurability allows field-tariff or protocol upgrades without board removal, a major operational advantage for carriers. Modern replacements (Cyclone IV, MAX V) are not pin-compatible, so PLCC-84 retention keeps existing shelves in service.
Recommandé
Prototyping Platform and Educational FPGA Board
Because the 84-pin PLCC J-Lead package is socket-friendly, the EPF8636ALC84-4N is a popular choice for university FPGA laboratories and rapid-prototyping boards where students swap devices for different lab exercises. The 6,000-gate density is enough to demonstrate finite-state machines, multipliers, simple CPUs (e.g., a 16-bit RISC-V subset), UARTs, SPI/I2C controllers, and basic VGA timing. In-system reconfigurability via EPC1/EPC1064 allows the same board to be reused across many lab sessions without reprogramming hardware. Its 5 V tolerance also makes the part tolerant of older lab power supplies.
Recommandé
Aerospace and Defense Subsystem Controllers
The FLEX 8000 family has a long heritage in aerospace and defense subsystems where deterministic timing and radiation tolerance screening (when ordered through MIL-PRF-38535 flows) are valued. The EPF8636ALC84-4N in the commercial grade is used in non-flight ground-support equipment, while MIL-screened variants of the same die support flight-control interfaces, mission-computer I/O expansion, and radar signal-conditioning boards. The 68 user I/Os comfortably aggregate sensor buses, MIL-STD-1553 transceivers, and discrete discretes. Designers preserve the PLCC-84 footprint across ruggedized, conduction-cooled chassis.
Recommandé
Test and Measurement Backplane Instrumentation
Test-and-measurement equipment such as logic analyzers, protocol exercisers, and ATE fixture controllers historically used FLEX 8000 FPGAs for pattern generation, timing-and-control sequencing, and bus protocol re-mapping. The EPF8636ALC84-4N's 504 logic elements implement 32-64 channel pattern generators with sub-10 ns edge accuracy, while 68 user I/Os drive both the DUT (device-under-test) interface and the instrument's local microcontroller. In-system reconfigurability enables field upgrades as new protocols are supported without returning the instrument. The PLCC-84 socket simplifies calibration swaps.
Recommandé
Automotive and Heavy-Equipment ECU Peripherals
While the EPF8636ALC84-4N is commercial-grade (0 °C to 70 °C), its sibling FLEX 8000 devices with industrial screening are used in heavy-equipment ECUs for body controllers, dashboard multiplexing, and sensor aggregation. The 6,000-gate density and 68 I/Os aggregate CAN/LIN fan-out, switch-matrix scanning, and PWM channels. In-system reconfigurability allows OEM software updates over the diagnostic port without ECU replacement. Note: AEC-Q100 qualified parts do not exist in the FLEX 8000 family; for new automotive designs, Cyclone IV or MAX V are the recommended paths.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour EPF8636ALC84-4N — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | EPF8636ALC84-4 | EPF8636ALC84-3 | EPF8452ALC84-4N | EPF8452ALC84-4 | EPF8282ALC84-4N |
|---|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera | 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 |
| Usable Gates | ~6,000 | ~6,000 | ~6,000 | ~4,000 | ~4,000 | ~2,500 |
| Logic Elements (LEs) | 504 | 504 | 504 | 336 | 336 | 208 |
| User I/Os | 68 | 68 | 68 | 68 | 68 | 68 |
| Speed Grade | -4 | -4 | -3 (slower) | -4 | -4 | -4 |
| Supply Voltage | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 V |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND | NRND |
Principaux différenciateurs
- Highest density in the FLEX 8000 PLCC-84 family (vs EPF8452ALC84-4N)
- Lead-free RoHS-compliant terminal finish (vs EPF8636ALC84-4)
- Speed grade -4 (faster than -3) at same price (vs EPF8636ALC84-3)
- In-system reconfigurability via Altera EPC series PROMs (vs Antifuse FPGAs of the same era)
Notes de conception
The EPF8636ALC84-4N operates at 5.0 V VCC and requires careful decoupling on every supply pin. Place a 0.1 µF ceramic decoupling capacitor as close as possible to each VCC pin (pins 3, 17, 27, 37, 47, 57, 74), and add a 1-10 µF bulk tantalum or ceramic capacitor per supply bank. Estimated: at typical 5 V VCCIO operation with ~50 mA quiescent current, total power dissipation is approximately 250 mW for a quiescent (unconfigured) device; configured device power scales with toggle rate and can reach 1 W. Plan thermal headroom accordingly.
The 84-pin PLCC J-Lead package has a 1.27 mm pitch and is best used with a PLCC-84 socket to simplify configuration swap, factory programming, and field replacement. If socketing is not used, ensure the J-leads are soldered with a profiled reflow or wave-solder cycle and that pad geometry matches the IPC-SM-782 land pattern. Maintain a continuous ground plane beneath the device to minimize ground bounce on the 63 LAB outputs and to provide low-impedance return paths for the 68 user I/Os.
Common pitfalls: (1) selecting the wrong configuration PROM - the EPC1064 stores 64 Kbit and is the minimum, but always verify against your compiled bitstream size; (2) omitting the external 1 kΩ pull-up on nCONFIG and 10 kΩ pull-up on nSTATUS - both pins require pull-ups for proper configuration sequencing; (3) confusing 5 V VCC with 3.3 V VCC - this device does NOT support 3.3 V operation and will be damaged by undervoltage; (4) using the -4 suffix when the -3 timing grade is required - the -4 is faster, so substituting the wrong grade will not fail but timing may close poorly; (5) failing to enable JTAG chain integrity test before deployment.
Place configuration-related components (EPC1064/EPC1441 PROM, JTAG header, nCONFIG pull-up, DCLK series-termination) within 50 mm of the FPGA to avoid signal-integrity issues on the configuration bus. Route CONF_DONE and nSTATUS away from high-frequency switching I/O to prevent false configuration errors. For designs that use MultiVolt I/O interfaces, group 5 V and 3.3 V I/O into separate banks (banks 1-4 on the EPF8636A) and add bus-switch or level-translator ICs at bank boundaries.
Informations de conformité
The trailing 'N' suffix indicates lead-free, RoHS-compliant terminal finish per Altera ordering guide. FLEX 8000 family was never AEC-Q100 qualified - for automotive designs, choose MAX V or Cyclone IV. Conflict-minerals status compliant per Altera/Intel CMRT filings.
