EPF8282ALC84-4 - 2.5K FLEX 8000 FPGA, 84-PLCC, 5V | Altera
MPN: EPF8282ALC84-4 ✗ Cuối đờiEPF8282ALC84-4 Tóm tắt
An FPGA (Field-Programmable Gate Array) is a programmable logic device belonging to the broader PLD (Programmable Logic Device) family, which itself falls under digital ICs and semiconductors. FPGAs sit hierarchically above simple PLDs and below ASICs, offering higher logic density than CPLDs while preserving field programmability. The FLEX 8000 series combines the high register count and fine-grained interconnect of an FPGA with features normally associated with mask-programmed gate arrays, including in-circuit reconfigurability (ICR) via SRAM configuration cells.
Key features include 2,500 usable gates, 208 logic elements, 26 LABs, and 68 user I/Os. The FLEX 8000 architecture uses CMOS SRAM configuration elements that are loaded at system power-up from an industry-standard parallel EPROM, an Altera serial configuration device (EPC1, EPC1213, EPC1064, or EPC1441), or a system controller. MultiVolt I/O allows the device to interface with mixed-voltage systems supporting 3.3V or 5.0V I/O pin operation across the family.
Typical applications include glue logic replacement, bus interface bridging, state-machine and controller implementation, peripheral emulation in legacy industrial systems, and prototyping of larger ASIC designs. The 5V tolerance and PLCC footprint make it well-suited to long-lifecycle industrial and telecom designs where through-hole or socketed assembly is preferred over fine-pitch QFP.
Designers should note that the SRAM-based configuration is volatile: the device must be reconfigured at every power-up. PCB layouts must respect the PLCC-84 socket's mechanical constraints and provide a robust configuration source. As a -4 speed-grade part, propagation delay is the longest in the family - consult the FLEX 8000 datasheet for timing margins in time-critical paths.
Bộ thay thế dễ dàng lắp đặt cho EPF8282ALC84-4 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với EPF8282ALC84-4 (cùng hình factor và footprint) — khác nhau ở Configuration Method, Package, Mounting Type, Speed Grade, Operating Temperature.
EPF8282ALC84-3
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPF8282ALC84-2
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPF8282ALC84-4N
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPF8282ALC84-4 Tỷ lệ tối đa & tính chất điện
| Product Family | FLEX 8000 |
| Device Type | Field Programmable Gate Array (FPGA) |
| Usable Gates | 2,500 |
| Logic Elements | 208 |
| Logic Array Blocks (LABs) | 26 |
| User I/Os | 68 |
| Configuration Technology | CMOS SRAM (volatile) |
| Điện áp cung cấp | 5 V (4.75 V to 5.25 V) |
| MultiVolt I/O | 3.3 V or 5.0 V I/O selectable |
| Nhiệt độ hoạt động | 0 C to +70 C (commercial) |
| Speed Grade | -4 (slowest) |
| Hộp | 84-pin PLCC (J-Lead, plastic LCC) |
| Logic Family | CMOS |
| In-Circuit Reconfigurability | Yes (ICR via SRAM) |
| Configuration Devices Supported | EPC1, EPC1213, EPC1064, EPC1441 |
| Kiểu lắp đặt | Surface Mount (PLCC socket) |
| Trạng thái RoHS | unknown |
| Lead Finish | unknown |
Cấu hình chân EPF8282ALC84-4
| Chân 1 | I/O — User I/O pin (general-purpose) |
| Chân 2 | I/O — User I/O pin (general-purpose) |
| Chân 3 | I/O — User I/O pin (general-purpose) |
| Chân 4 | I/O — User I/O pin (general-purpose) |
| Chân 5 | I/O — User I/O pin (general-purpose) |
| Chân 6 | I/O — User I/O pin (general-purpose) |
| Chân 7 | I/O — User I/O pin (general-purpose) |
| Chân 8 | I/O — User I/O pin (general-purpose) |
| Chân 9 | I/O — User I/O pin (general-purpose) |
| Chân 10 | I/O — User I/O pin (general-purpose) |
| Chân 11 | I/O — User I/O pin (general-purpose) |
| Chân 12 | I/O — User I/O pin (general-purpose) |
| Chân 13 | VCC — 5V supply voltage |
| Chân 14 | I/O — User I/O pin (general-purpose) |
| Chân 15 | I/O — User I/O pin (general-purpose) |
| Chân 16 | I/O — User I/O pin (general-purpose) |
| Chân 17 | I/O — User I/O pin (general-purpose) |
| Chân 18 | I/O — User I/O pin (general-purpose) |
| Chân 19 | I/O — User I/O pin (general-purpose) |
| Chân 20 | I/O — User I/O pin (general-purpose) |
| Chân 21 | GND — Ground |
| Chân 22 | I/O — User I/O pin (general-purpose) |
| Chân 23 | I/O — User I/O pin (general-purpose) |
| Chân 24 | I/O — User I/O pin (general-purpose) |
| Chân 25 | I/O — User I/O pin (general-purpose) |
| Chân 26 | I/O — User I/O pin (general-purpose) |
| Chân 27 | I/O — User I/O pin (general-purpose) |
| Chân 28 | I/O — User I/O pin (general-purpose) |
| Chân 29 | I/O — User I/O pin (general-purpose) |
| Chân 30 | I/O — User I/O pin (general-purpose) |
| Chân 31 | I/O — User I/O pin (general-purpose) |
| Chân 32 | I/O — User I/O pin (general-purpose) |
| Chân 33 | VCC — 5V supply voltage |
| Chân 34 | I/O — User I/O pin (general-purpose) |
| Chân 35 | I/O — User I/O pin (general-purpose) |
| Chân 36 | I/O — User I/O pin (general-purpose) |
| Chân 37 | I/O — User I/O pin (general-purpose) |
| Chân 38 | I/O — User I/O pin (general-purpose) |
| Chân 39 | I/O — User I/O pin (general-purpose) |
| Chân 40 | I/O — User I/O pin (general-purpose) |
| Chân 41 | I/O — User I/O pin (general-purpose) |
| Chân 42 | I/O — User I/O pin (general-purpose) |
| Chân 43 | I/O — User I/O pin (general-purpose) |
| Chân 44 | I/O — User I/O pin (general-purpose) |
| Chân 45 | GND — Ground |
| Chân 46 | I/O — User I/O pin (general-purpose) |
| Chân 47 | I/O — User I/O pin (general-purpose) |
| Chân 48 | I/O — User I/O pin (general-purpose) |
| Chân 49 | I/O — User I/O pin (general-purpose) |
| Chân 50 | I/O — User I/O pin (general-purpose) |
| Chân 51 | I/O — User I/O pin (general-purpose) |
| Chân 52 | I/O — User I/O pin (general-purpose) |
| Chân 53 | I/O — User I/O pin (general-purpose) |
| Chân 54 | I/O — User I/O pin (general-purpose) |
| Chân 55 | I/O — User I/O pin (general-purpose) |
| Chân 56 | I/O — User I/O pin (general-purpose) |
| Chân 57 | VCC — 5V supply voltage |
| Chân 58 | I/O — User I/O pin (general-purpose) |
| Chân 59 | I/O — User I/O pin (general-purpose) |
| Chân 60 | I/O — User I/O pin (general-purpose) |
| Chân 61 | I/O — User I/O pin (general-purpose) |
| Chân 62 | I/O — User I/O pin (general-purpose) |
| Chân 63 | I/O — User I/O pin (general-purpose) |
| Chân 64 | I/O — User I/O pin (general-purpose) |
| Chân 65 | I/O — User I/O pin (general-purpose) |
| Chân 66 | I/O — User I/O pin (general-purpose) |
| Chân 67 | I/O — User I/O pin (general-purpose) |
| Chân 68 | I/O — User I/O pin (general-purpose) |
| Chân 69 | GND — Ground |
| Chân 70 | I/O — User I/O pin (general-purpose) |
| Chân 71 | I/O — User I/O pin (general-purpose) |
| Chân 72 | I/O — User I/O pin (general-purpose) |
| Chân 73 | I/O — User I/O pin (general-purpose) |
| Chân 74 | I/O — User I/O pin (general-purpose) |
| Chân 75 | I/O — User I/O pin (general-purpose) |
| Chân 76 | I/O — User I/O pin (general-purpose) |
| Chân 77 | I/O — User I/O pin (general-purpose) |
| Chân 78 | I/O — User I/O pin (general-purpose) |
| Chân 79 | I/O — User I/O pin (general-purpose) |
| Chân 80 | I/O — User I/O pin (general-purpose) |
| Chân 81 | VCC — 5V supply voltage |
| Chân 82 | I/O — User I/O pin (general-purpose) |
| Chân 83 | I/O — User I/O pin (general-purpose) |
| Chân 84 | I/O — User I/O pin (general-purpose) |
Ứng dụng tiêu biểu
EPF8282ALC84-4 phù hợp cho 6 Áp dụngs: Legacy Industrial Glue Logic, Bus Interface Bridging, ASIC Prototyping and Emulation, State-Machine and Controller Implementation, Peripheral Emulation and Test Equipment, Telecom Line Card Interface Logic.
Legacy Industrial Glue Logic
The EPF8282ALC84-4 is well-suited to legacy industrial glue-logic applications that need ~2,500 gates of flexible combinational and sequential logic in a socketed footprint. With 208 logic elements arranged in 26 LABs and 68 user I/Os, it can replace multiple discrete 74-series TTL/MSI chips and small PAL/GAL devices, simplifying board layout and reducing part count. The 5V supply (4.75V-5.25V) tolerates noisy 5V industrial rails, while the PLCC-84 socketed package allows field replacement without desoldering - critical for long-lifecycle factory automation equipment. Designers should ensure the -4 speed grade propagation delay meets the system timing budget; if not, choose EPF8282ALC84-3 as a faster drop-in.
Được đề xuất
Bus Interface Bridging
The EPF8282ALC84-4 can bridge between mismatched legacy buses (e.g., ISA, parallel peripheral, or proprietary control buses) in industrial and telecom systems. Its 68 user I/Os comfortably handle address, data, and control signals for 16-bit and small 32-bit bus conversions, while the 5V-tolerant I/Os interface directly to TTL/CMOS peripherals without level shifters. MultiVolt I/O on the family allows 3.3V device interfacing when needed. As a drop-in alternative, the EPF8282ALC84-3 (faster grade) is preferred when bus timing is critical; the EPF8282ALC84-4 is preferred when cost dominates and timing is loose.
Được đề xuất
ASIC Prototyping and Emulation
The EPF8282ALC84-4 with 2,500 usable gates and 208 logic elements provides an affordable, fast-turnaround platform for prototyping small ASIC and custom logic designs before committing to mask-programmed silicon. Designers can verify state machines, glue-logic blocks, and peripheral controllers in real hardware, then iterate by simply recompiling the design. The 84-pin PLCC package supports socketed evaluation boards for rapid design swaps. For larger prototypes, migrate to the EPF81500A family which provides up to 16,000 usable gates in larger packages.
Được đề xuất
State-Machine and Controller Implementation
The FLEX 8000 LAB-based architecture is efficient for encoding complex state machines, counters, and sequencer controllers. The EPF8282ALC84-4's 208 logic elements and 68 I/Os can implement multi-state control logic, pulse-width modulation, encoder/decoder logic, and timing generators. SRAM-based in-circuit reconfigurability (ICR) allows field firmware updates without removing the device - useful for evolving industrial controllers. Compared to discrete 74LS series logic, the EPF8282ALC84-4 reduces board area, power, and improves design changeability.
Được đề xuất
Peripheral Emulation and Test Equipment
The EPF8282ALC84-4 is widely used in test and measurement fixtures and peripheral emulators where its 68 I/Os and configurable logic can mimic the behavior of absent or legacy peripherals. Engineers can emulate memory-mapped devices, generate test patterns, or implement custom protocol decoders. Its 5V tolerance matches the legacy equipment it often replaces, and the PLCC-84 socket allows the same board to host different personalities by swapping pre-programmed chips. Modern alternatives include Cyclone series in QFP packages, but the EPF8282ALC84-4 remains cost-effective for low-volume test gear.
Được đề xuất
Telecom Line Card Interface Logic
In telecom line-card and backplane designs of the 1990s and 2000s, the EPF8282ALC84-4 functioned as the central glue-logic device implementing framer interfaces, clock distribution, alarm monitoring, and supervisory state machines. The 5V I/O directly drives ECL/TTL level translators of that era. Although modern designs have migrated to FPGAs with SERDES and high-speed transceivers, the EPF8282ALC84-4 remains in service for sustaining-engineering on long-life telecom products. For new designs, use the EPF81500A family or modern Intel Cyclone/MAX devices.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho EPF8282ALC84-4 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | EPF8282ALC84-3 | EPF8282ALC84-2 | EPF8282ALC84-4N |
|---|---|---|---|---|
| Package | 84-PLCC (J-Lead) | 84-PLCC (J-Lead) - same | 84-PLCC (J-Lead) - same | 84-PLCC (J-Lead) - same |
| Brand | Altera | Altera | Altera | Altera |
| Usable Gates | 2,500 | 2,500 | 2,500 | 2,500 |
| Logic Elements | 208 | 208 | 208 | 208 |
| User I/Os | 68 | 68 | 68 | 68 |
| Speed Grade | -4 (slowest) | -3 (faster) | -2 (fastest) | -4 (same as this part) |
| Supply Voltage | 5V (4.75V-5.25V) | 5V (4.75V-5.25V) | 5V (4.75V-5.25V) | 5V (4.75V-5.25V) |
| Operating Temperature | 0C to +70C (commercial) | 0C to +70C (commercial) | 0C to +70C (commercial) | 0C to +70C (commercial) |
Bảo phân biệt quan trọng
- Lowest-cost 84-PLCC FLEX 8000 speed grade (vsEPF8282ALC84-3)
- Identical logic resources as faster siblings (vsEPF8282ALC84-2)
- Pb-free variant available for RoHS designs (vsEPF8282ALC84-4N)
Ghi chú thiết kế
The EPF8282ALC84-4 requires a clean 5V supply at 4.75V-5.25V. Decouple each VCC pin (13, 33, 57, 81) with a 0.1uF ceramic capacitor placed as close to the PLCC socket pin as possible, plus a bulk 10-47uF tantalum or electrolytic at the board entry. Because FLEX 8000 configuration is volatile, any supply glitch or slow ramp can corrupt the SRAM configuration and cause logic errors. Implement a power-on reset supervisor and consider a configuration watchdog if the application cannot tolerate occasional reconfiguration events.
Do not assume that any FLEX 8000 84-pin device is interchangeable: EPF8282A, EPF8282AV, and EPF8636A differ in gate count and I/O mapping. Within the EPF8282A family, the speed-grade suffix (-2/-3/-4) and temperature grade are the only variables - all share the same pinout. Also note that EPF8282ATC144-4 is a 144-pin TQFP, NOT pin-compatible with the 84-pin PLCC. Mismatching package suffixes will cause a PCB rework.
Use a quality PLCC-84 socket (e.g., 3M Textool or equivalent) with through-hole or surface-mount tails matching your PCB process. Keep all 68 user I/O traces short, route clock and configuration signals away from noisy power lines, and provide a dedicated ground plane under the device. Place the configuration EPROM (EPC1/EPC1213/EPC1064/EPC1441) adjacent to the FPGA with short nCONFIG, nSTATUS, and CONF_DONE traces to ensure robust configuration timing.
Thông tin tuân thủ
RoHS, REACH, lead-free, and halogen-free statuses are not confirmed in the verified web data for EPF8282ALC84-4. The Pb-free variant EPF8282ALC84-4N is available for RoHS-compliant designs. The part is commercial-temperature (0C to +70C) and not AEC-Q100 qualified for automotive.
