EPF8636ALI84-4 - FLEX 8000 FPGA 6K Gates 504 Cells | Intel / Altera
料号： EPF8636ALI84-4 ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 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 概述
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.
直接替换替代料： EPF8636ALI84-4 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： EPF8636ALI84-4 （相同外形与封装尺寸） ——差异在于 Configuration Method, Mounting Type, Package, Operating Temperature, Usable Gates.
快速对比工具——选择替代料号进行并排对比：
EPF8636ALC84-4
✅ 直接替换✓ 有现货
$24.3 / 个
查看数据手册 →EPF8636ALC84-3
✅ 直接替换✓ 有现货
$18.75 / 个
查看数据手册 →EPF8636ALC84-4N
✅ 直接替换✓ 有现货
$7.5 / 个
查看数据手册 →EPF8452ALI84-4
✅ 直接替换✓ 有现货
$9.75 / 个
查看数据手册 →EPF8282ALI84-4
✅ 直接替换✓ 有现货
$8.2 / 个
查看数据手册 →EPF8636ALI84-4 最大额定值与电气特性
| 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 |
| 电源电压 | 5 V |
| Process Technology | 0.42 µm CMOS SRAM |
| Package Type | 84-Pin PLCC (J-Lead) |
| 安装类型 | Surface Mount |
| 工作温度 | 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 |
EPF8636ALI84-4 引脚配置
| 引脚 1 | I/O — User I/O pin (dual-purpose: user I/O or DATA0 during configuration) |
| 引脚 2 | I/O — User I/O |
| 引脚 3 | I/O — User I/O |
| 引脚 4 | I/O — User I/O |
| 引脚 5 | I/O — User I/O |
| 引脚 6 | I/O — User I/O |
| 引脚 7 | I/O — User I/O |
| 引脚 8 | I/O — User I/O |
| 引脚 9 | I/O — User I/O |
| 引脚 10 | GND — Ground |
| 引脚 11 | I/O — User I/O |
| 引脚 12 | I/O — User I/O |
| 引脚 13 | I/O — User I/O |
| 引脚 14 | I/O — User I/O |
| 引脚 15 | I/O — User I/O |
| 引脚 16 | I/O — User I/O |
| 引脚 17 | I/O — User I/O |
| 引脚 18 | I/O — User I/O |
| 引脚 19 | I/O — User I/O |
| 引脚 20 | I/O — User I/O |
| 引脚 21 | VCC — 5 V core supply |
| 引脚 22 | I/O — User I/O |
| 引脚 23 | I/O — User I/O |
| 引脚 24 | I/O — User I/O |
| 引脚 25 | I/O — User I/O |
| 引脚 26 | I/O — User I/O |
| 引脚 27 | I/O — User I/O |
| 引脚 28 | I/O — User I/O |
| 引脚 29 | I/O — User I/O |
| 引脚 30 | I/O — User I/O |
| 引脚 31 | GND — Ground |
| 引脚 32 | I/O — User I/O |
| 引脚 33 | I/O — User I/O |
| 引脚 34 | I/O — User I/O |
| 引脚 35 | nCONFIG — Configuration control (active low) |
| 引脚 36 | I/O — User I/O |
| 引脚 37 | I/O — User I/O |
| 引脚 38 | I/O — User I/O |
| 引脚 39 | I/O — User I/O |
| 引脚 40 | I/O — User I/O |
| 引脚 41 | I/O — User I/O |
| 引脚 42 | VCC — 5 V core supply |
| 引脚 43 | I/O — User I/O |
| 引脚 44 | I/O — User I/O |
| 引脚 45 | I/O — User I/O |
| 引脚 46 | I/O — User I/O |
| 引脚 47 | I/O — User I/O |
| 引脚 48 | I/O — User I/O |
| 引脚 49 | I/O — User I/O |
| 引脚 50 | I/O — User I/O |
| 引脚 51 | I/O — User I/O |
| 引脚 52 | GND — Ground |
| 引脚 53 | I/O — User I/O |
| 引脚 54 | I/O — User I/O |
| 引脚 55 | TDI — JTAG Test Data In |
| 引脚 56 | I/O — User I/O |
| 引脚 57 | I/O — User I/O |
| 引脚 58 | I/O — User I/O |
| 引脚 59 | I/O — User I/O |
| 引脚 60 | I/O — User I/O |
| 引脚 61 | I/O — User I/O |
| 引脚 62 | I/O — User I/O |
| 引脚 63 | VCC — 5 V core supply |
| 引脚 64 | I/O — User I/O |
| 引脚 65 | I/O — User I/O |
| 引脚 66 | I/O — User I/O |
| 引脚 67 | I/O — User I/O |
| 引脚 68 | I/O — User I/O |
| 引脚 69 | I/O — User I/O |
| 引脚 70 | I/O — User I/O |
| 引脚 71 | I/O — User I/O |
| 引脚 72 | I/O — User I/O |
| 引脚 73 | GND — Ground |
| 引脚 74 | I/O — User I/O |
| 引脚 75 | TDO — JTAG Test Data Out |
| 引脚 76 | I/O — User I/O |
| 引脚 77 | I/O — User I/O |
| 引脚 78 | TMS — JTAG Test Mode Select |
| 引脚 79 | TCK — JTAG Test Clock |
| 引脚 80 | I/O — User I/O |
| 引脚 81 | nSTATUS — Configuration status (active low) |
| 引脚 82 | I/O — User I/O |
| 引脚 83 | CONF_DONE — Configuration done |
| 引脚 84 | I/O — User I/O |
典型应用
EPF8636ALI84-4 适用于 7 应用s: 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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： EPF8636ALI84-4 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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 |
关键差异点
- Industrial temperature grade in a J-lead PLCC package （对比 EPF8636ALC84-4)
- Full 504-cell density in the FLEX 8000 family at -4 speed grade （对比 EPF8452ALI84-4)
- Higher density than EPF8282ALI84-4 with same package （对比 EPF8282ALI84-4)
- Drop-in same-family compatibility preserves MAX+PLUS II design flow （对比 MAX 10 (10M02/10M04))
设计说明
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.
合规信息
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.
