EPF8636ALI84-4N - FLEX 8000 FPGA 6K Gates 84-PLCC | Intel / Altera
料号： EPF8636ALI84-4N ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $42.5 | $42.50 |
| 10 | $38.25 | $382.50 |
| 100 | $33.1 | $3,310.00 |
| 500 | $28.4 | $14,200.00 |
| 1,000 | $24.95 | $24,950.00 |
EPF8636ALI84-4N 概述
An FPGA (Field-Programmable Gate Array) is a semiconductor device built around an array of configurable logic blocks (CLBs) connected via programmable interconnect, allowing designers to implement arbitrary digital logic functions after PCB fabrication. The FLEX 8000 family sits in the hierarchy: FPGA → programmable logic device (PLD) → configurable logic → digital IC. Configuration is loaded at power-up from an external parallel EPROM, an Altera serial configuration device (EPC1, EPC1064, EPC1213, or EPC1441), or a system controller. SRAM configuration cells also enable in-circuit reconfigurability (ICR) for field upgrades and design iteration without re-soldering.
Key features of the EPF8636ALI84-4N include 504 logic elements (the building blocks of FLEX 8000, each containing a 4-input LUT and a flip-flop), 63 LABs, a 0.42 µm CMOS process for low static power, 125 MHz internal performance, 68 user I/Os, and 5V tolerant inputs. The PLCC-84 (J-lead) package supports surface mounting while retaining socket compatibility for prototype and production-line programming. Each LE drives registered or combinational logic, and the FastTrack interconnect fabric provides predictable timing across the device.
Architecturally, FLEX 8000 devices use a row-and-column interconnect with continuous FastTrack routing channels, providing uniform delay regardless of logic placement. This simplifies static timing closure compared to segmented architectures. Embedded Logic Array Blocks contain 8 LEs each, with local carry and cascade chains for arithmetic and wide-function implementation. The device supports in-system programming through the Altera ByteBlaster or BitBlaster interfaces.
Typical applications include telecommunications line cards, industrial control glue logic, legacy bus interfaces (ISA, VME), and 5V system upgrades from discrete 74-series TTL. The wide 5V tolerance also makes it suitable for automotive and military subsystems where modern 3.3V-only FPGAs are incompatible. Designers port legacy MAX+PLUS II designs to FLEX 8000 to consolidate multiple PAL/GAL devices into a single package.
When designing with the EPF8636ALI84-4N, ensure the 5V supply is well-decoupled with 0.1 µF ceramic capacitors placed adjacent to every VCC pin. The PLCC socket should be a low-profile machined-pin type rated for repeated programming cycles. Confirm configuration device compatibility (EPC1/EPC1064/EPC1213/EPC1441) and that the configuration mode (PS, AS, or JTAG) matches your board design.
This page consolidates distributor pricing, drop-in same-package alternatives, FLEX 8000 family context, and engineering design notes not present in the original datasheet alone.
直接替换替代料： EPF8636ALI84-4N ——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： EPF8636ALI84-4N （相同外形与封装尺寸） ——差异在于 Configuration Method, Mounting Type, Package, Process Technology, Usable Gates.
快速对比工具——选择替代料号进行并排对比：
EPF8636ALI84-4
✅ 直接替换✓ 有现货
$16.1 / 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 →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 →EPF8636ALI84-4N 最大额定值与电气特性
| Family | FLEX 8000 |
| Logic Elements (LEs) | 504 |
| Usable Gates | 6,000 (typical) |
| Logic Array Blocks (LABs) | 63 |
| User I/Os | 68 |
| Flip-Flops | 636 |
| Process Technology | 0.42 µm CMOS |
| 电源电压 | 5 V |
| Internal Performance | 125 MHz |
| 工作温度 | 0 °C to 70 °C (commercial, -4N grade) |
| 封装 | 84-pin PLCC (Plastic Leaded Chip Carrier, J-lead) |
| Terminal Form | J-Bend (PLCC) |
| 安装类型 | Surface Mount (PLCC socket compatible) |
| Configuration Memory | CMOS SRAM |
| Configuration Device Support | EPC1, EPC1064, EPC1213, EPC1441 |
| In-Circuit Reconfigurability | Yes (SRAM-based) |
| Logic Family | CMOS |
| ECCN | EAR99 |
EPF8636ALI84-4N 84-pin plcc (plastic leaded chip carrier, j-lead) 引脚配置指南
EPF8636ALI84-4N（84-pin plcc (plastic leaded chip carrier, j-lead) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： EPF8636ALI84-4N.
请参阅 数据手册 以查看完整引脚配置。
典型应用
EPF8636ALI84-4N 适用于 6 应用s: 5V Telecom Line Card Glue Logic, Industrial Control and Machine Interface Logic, Legacy ISA / VME Bus Interface Card, 5V Military / Avionics Subsystem Upgrade, Video Processing Front-End (Legacy Standard-Definition), Medical Imaging Interface Board.
5V Telecom Line Card Glue Logic
The EPF8636ALI84-4N's 5V tolerant I/O and 68 user pins make it ideal for telecom line-card glue logic, replacing multiple 74-series TTL devices with a single PLCC-84 socket. The 504 logic elements comfortably absorb address decoding, FIFO control, and bus arbitration functions typical of T1/E1 line cards. Its 125 MHz performance supports backplane speeds up to 50 MHz with margin. Designers port legacy MAX+PLUS II schematics to consolidate board real estate while retaining 5V compatibility with legacy line interface units (LIUs) and framer ICs that lack 3.3V tolerance.
推荐
Industrial Control and Machine Interface Logic
The EPF8636ALI84-4N delivers robust industrial-grade performance for PLCs, machine controllers, and HMI interface boards where its 5V I/O directly drives 5V optocouplers, relay drivers, and LED indicators. The 504 LEs and 68 I/Os handle multi-axis stepper coordination, encoder counters, and keypad scanning without external logic. The PLCC socket allows easy firmware updates and field replacement, and the obsolete-but-available stock supports long-life industrial programs. The FLEX 8000 in-circuit reconfigurability enables factory-floor design iteration without re-soldering, reducing retrofit cost.
推荐
Legacy ISA / VME Bus Interface Card
The EPF8636ALI84-4N's 68 I/Os and 5V tolerance are well-matched to legacy 16-bit ISA and VMEbus interface cards, where it bridges the host bus to custom peripherals, DSPs, or memory subsystems. The PLCC-84 footprint fits standard Eurocard form factors and ISA prototype cards. FLEX 8000 timing closure with the FastTrack interconnect gives predictable bus-cycle timing, and the 636 flip-flops accommodate address-latch, data-buffer, and interrupt-control registers. Designers can implement ISA bus mastering logic or VMEbus slave interfaces with a single chip, replacing 4-6 discrete TTL packages.
推荐
5V Military / Avionics Subsystem Upgrade
The EPF8636ALI84-4N extends the service life of 5V avionics and military subsystems by replacing discrete TTL and early PAL/GAL devices with a single reprogrammable FPGA. The 0.42 µm CMOS process and SRAM configuration support rapid field upgrades, and the industrial temperature variant (EPF8636ALC84-4N) handles -40 °C to +85 °C environments. The 84-pin PLCC package withstands vibration better than QFP leads when properly socketed, and the 5V I/O directly interfaces legacy MIL-STD-1553 transceivers and ARINC 429 bus drivers without level translation.
推荐
Video Processing Front-End (Legacy Standard-Definition)
The EPF8636ALI84-4N supports legacy standard-definition video front-end designs (NTSC/PAL decoders, genlock circuits, broadcast routers) where its 5V I/O interfaces directly to analog video ADCs and sync separators. The 504 LEs implement line-locked pixel clocks, color-space conversion matrices, and on-screen display generators. The 68 user I/Os provide parallel video buses (8/16-bit) and I2C/SPI control channels for tuner and decoder ICs. The PLCC-84 socket enables rapid design iteration when tuning chroma and luma processing paths.
推荐
Medical Imaging Interface Board
The EPF8636ALI84-4N serves medical imaging interface boards (ultrasound front-ends, patient monitor displays) where 5V tolerance and long-term availability through brokers are critical. The 504 LEs handle ultrasound beamformer control, ADC-to-host data packing, and LCD timing generation. The 68 user I/Os accommodate parallel ADC buses (10-12 bit) plus SPI/I2C control for analog front-end ICs. Designers use the SRAM-based in-circuit reconfigurability to update beamforming coefficients and timing parameters without disassembling the equipment, simplifying field calibration.
推荐
推荐产品汇总
工程参考数据： EPF8636ALI84-4N ——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 | EPF8636ALI84-4 | EPF8636ALC84-4N | EPF8636ALC84-4 | EPF8636ALC84-3 |
|---|---|---|---|---|---|
| Brand | 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 |
| Logic Elements | 504 | 504 | 504 | 504 | 504 |
| User I/Os | 68 | 68 | 68 | 68 | 68 |
| Speed Grade | -4 (commercial) | -4 | -4 (industrial) | -4 (industrial) | -3 (industrial) |
| Temperature Grade | Commercial (0C to 70C) | Commercial (0C to 70C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V |
| Configuration Memory | SRAM | SRAM | SRAM | SRAM | SRAM |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
关键差异点
- Native 5V I/O tolerance （对比 EPF8636ALI84-4)
- Commercial temperature grade (-4N) （对比 EPF8636ALC84-4N)
- FLEX 8000 architecture with FastTrack interconnect （对比 EPF8636ALC84-3)
设计说明
Decouple every VCC pin with a 0.1 µF ceramic capacitor placed within 5 mm of the package pin. The PLCC-84 has 4-6 VCC pins distributed around the package perimeter; each requires an independent decoupling cap. Add a single 10 µF tantalum or electrolytic bulk capacitor at the board's 5V supply entry point. The FLEX 8000 family has moderate inrush current during configuration - the bulk cap prevents supply sag. Estimated: at 125 MHz with all 68 I/Os toggling, ICC approaches 150 mA; with margin, size the 5V regulator for at least 250 mA per EPF8636 device.
Use a machined-pin PLCC-84 socket (e.g., 3M Textool or equivalent) rated for at least 100 insertion cycles when the design will be reprogrammed or prototyped. For production volumes, reflow-solder the PLCC directly to the PCB using standard J-lead profile. Provide 2 oz copper on inner power planes to handle the inrush during configuration. Keep configuration traces (nSTATUS, CONF_DONE, nCONFIG, DCLK) short and away from switching signals to avoid spurious reconfiguration during power-up transients.
Three common pitfalls when designing with the EPF8636ALI84-4N: (1) Forgetting that FLEX 8000 is SRAM-based - without a configuration device, the FPGA is unconfigured at every power-up and all I/Os are tri-stated; always include an EPC1/EPC1064/EPC1213/EPC1441 in the design. (2) Selecting the wrong configuration mode - verify MSEL pin strapping matches the chosen configuration source (PS, AS, or JTAG). (3) Assuming -4 speed grade parts can be substituted for -3 without timing re-analysis - the -4 grade is faster but timing closure on existing -3 designs must be reverified.
Route the JTAG chain (TCK, TMS, TDI, TDO) as a daisy-chain with 10 kΩ pull-ups on TCK and TMS to prevent spurious JTAG state transitions. Place JTAG header near the board edge for bed-of-nails test access. Separate analog and digital ground planes if the board mixes video or audio with the FPGA, joining at a single point near the 5V regulator. The 0.42 µm CMOS process of FLEX 8000 is sensitive to ESD - add TVS diodes on all user I/O pins that exit the board.
合规信息
Per GlobalSpec datasheet record, the EPF8636ALI84-4N is halogen-free compliant. RoHS, REACH, lead-free, and conflict-minerals status were not explicitly stated in the verified web data - [DATA_NEEDED] for those values. ECCN is EAR99.
