EPF8282ALC84-3 - FLEX 8000 FPGA 2.5K Gates 68 I/O 84-PLCC | Altera
MPN: EPF8282ALC84-3 ✗ Cuối đờiEPF8282ALC84-3 Tóm tắt
A Field Programmable Gate Array (FPGA) is a semiconductor device built around an array of configurable logic blocks (CLBs/LABs) interconnected by a programmable routing fabric, all controlled by SRAM configuration memory. FPGAs sit in the broader taxonomy of programmable logic devices (PLDs), alongside CPLDs and SPLDs, and serve as the prototypal general-purpose hardware-acceleration platform bridging discrete glue logic and full custom ASICs. The FLEX 8000 family is a second-generation Altera SRAM-based architecture that introduced embedded logic-array-block organization and in-circuit reconfigurability (ICR) via the serial configuration EPROM interface.
Key features include 2,500 usable gates supporting up to 16,000-gate designs when fully utilized, in-circuit reconfigurability that permits live bitstream updates without powering down the system, a 125 MHz internal performance target suitable for glue-logic and bus-interface functions, MultiVolt I/O for 3.3 V and 5.0 V mixed-voltage designs, and a 5 V core supply. The PLCC-84 J-Lead package is through-hole-compatible and supports socketed programming, which simplifies lab prototyping and field-replaceable upgrades.
The EPF8282ALC84-3 is organized as 26 LABs arranged in rows and columns, each LAB containing eight logic cells (LEs) implementing 4-input look-up tables, programmable registers, and a carry chain. FastRow interconnect and column interconnect lines route signals between LABs with predictable delays, simplifying static-timing closure. MultiVolt I/O buffers are individually configurable per pin group, allowing the same die to operate in mixed 5 V/3.3 V boards.
Typical applications include industrial bus-interface bridges (PCI, ISA, VME), legacy telecommunications glue logic, ASIC prototyping, replacement of multiple 74-series TTL devices in instrumentation, and educational hardware-acceleration platforms. Its SRAM-based fabric supports live bitstream reload for systems that must change personality in the field.
Designers should pair the EPF8282ALC84-3 with a configuration EPROM (such as the Altera EPC1 or EPC2) and observe 5 V supply decoupling guidelines. The MultiVolt I/O feature requires per-bank VCCIO rails that must be tied to either 3.3 V or 5.0 V - mixing within a bank is not supported.
This page synthesizes distributor pricing, drop-in FLEX 8000 family alternatives, and design guidance beyond the manufacturer datasheet, including parametric comparison and selection criteria for engineers evaluating legacy Altera SRAM FPGAs.
Bộ thay thế dễ dàng lắp đặt cho EPF8282ALC84-3 — 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 EPF8282ALC84-3 (cùng hình factor và footprint) — khác nhau ở Configuration Method, Mounting Type, Package, Speed Grade, Process Technology.
EPF8282ALC84-2
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPF8282ALC84-4
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPF8282ATC100-3N
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
EPF8282ATC144-3
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
EPF8282AVC84-3
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
EPF8282AGI84-3
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
EPF8452ALC84-3
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →EPF8282ALC84-3 Tỷ lệ tối đa & tính chất điện
| Product Family | FLEX 8000 |
| Product Type | FPGA - Field Programmable Gate Array |
| Usable Gates | 2,500 |
| Logic Cells | 208 |
| Logic Array Blocks (LABs) | 26 |
| User I/Os | 68 |
| Maximum Operating Frequency | 125 MHz |
| Supply Voltage (Core) | 5 V |
| I/O Voltage Support | 3.3 V or 5.0 V (MultiVolt) |
| Technology | 0.42 µm CMOS, SRAM-based |
| Configuration Method | Serial (EPC1/EPC2 EPROM) - SRAM, in-circuit reconfigurable |
| Package Type | 84-pin PLCC (Plastic Leaded Chip Carrier, J-Lead) |
| Nhiệt độ hoạt động | 0 °C to +70 °C (commercial) |
| Kiểu lắp đặt | Surface Mount / Through-Hole (J-Lead, socketable) |
| Speed Grade | -3 (production timing bin) |
Cấu hình chân EPF8282ALC84-3
| Chân 1 | I/O — User I/O (bank 1) |
| Chân 2 | I/O — User I/O (bank 1) |
| Chân 3 | I/O — User I/O (bank 1) |
| Chân 4 | I/O — User I/O (bank 1) |
| Chân 5 | I/O — User I/O (bank 1) |
| Chân 6 | I/O — User I/O (bank 1) |
| Chân 7 | VCCIO1 — I/O bank 1 supply voltage (3.3 V or 5.0 V) |
| Chân 8 | I/O — User I/O (bank 1) |
| Chân 9 | I/O — User I/O (bank 1) |
| Chân 10 | I/O — User I/O (bank 1) |
| Chân 11 | I/O — User I/O (bank 1) |
| Chân 12 | I/O — User I/O (bank 1) |
| Chân 13 | GND — Ground |
| Chân 14 | I/O — User I/O (bank 2) |
| Chân 15 | I/O — User I/O (bank 2) |
| Chân 16 | I/O — User I/O (bank 2) |
| Chân 17 | I/O — User I/O (bank 2) |
| Chân 18 | I/O — User I/O (bank 2) |
| Chân 19 | I/O — User I/O (bank 2) |
| Chân 20 | I/O — User I/O (bank 2) |
| Chân 21 | VCCIO2 — I/O bank 2 supply voltage (3.3 V or 5.0 V) |
| Chân 22 | I/O — User I/O (bank 2) |
| Chân 23 | I/O — User I/O (bank 2) |
| Chân 24 | I/O — User I/O (bank 2) |
| Chân 25 | I/O — User I/O (bank 2) |
| Chân 26 | I/O — User I/O (bank 2) |
| Chân 27 | I/O — User I/O (bank 2) |
| Chân 28 | GND — Ground |
| Chân 29 | I/O — User I/O (bank 3) |
| Chân 30 | I/O — User I/O (bank 3) |
| Chân 31 | I/O — User I/O (bank 3) |
| Chân 32 | I/O — User I/O (bank 3) |
| Chân 33 | I/O — User I/O (bank 3) |
| Chân 34 | I/O — User I/O (bank 3) |
| Chân 35 | I/O — User I/O (bank 3) |
| Chân 36 | VCCIO3 — I/O bank 3 supply voltage (3.3 V or 5.0 V) |
| Chân 37 | I/O — User I/O (bank 3) |
| Chân 38 | I/O — User I/O (bank 3) |
| Chân 39 | I/O — User I/O (bank 3) |
| Chân 40 | I/O — User I/O (bank 3) |
| Chân 41 | I/O — User I/O (bank 3) |
| Chân 42 | GND — Ground |
| Chân 43 | I/O — User I/O (bank 4) |
| Chân 44 | I/O — User I/O (bank 4) |
| Chân 45 | I/O — User I/O (bank 4) |
| Chân 46 | I/O — User I/O (bank 4) |
| Chân 47 | I/O — User I/O (bank 4) |
| Chân 48 | I/O — User I/O (bank 4) |
| Chân 49 | I/O — User I/O (bank 4) |
| Chân 50 | VCCIO4 — I/O bank 4 supply voltage (3.3 V or 5.0 V) |
| Chân 51 | I/O — User I/O (bank 4) |
| Chân 52 | I/O — User I/O (bank 4) |
| Chân 53 | I/O — User I/O (bank 4) |
| Chân 54 | I/O — User I/O (bank 4) |
| Chân 55 | I/O — User I/O (bank 4) |
| Chân 56 | GND — Ground |
| Chân 57 | DCLK — Configuration clock input (from EPC1/EPC2 EPROM) |
| Chân 58 | DATA0 — Configuration data input (serial bitstream) |
| Chân 59 | nSTATUS — Configuration status (open-drain, pulled low during error) |
| Chân 60 | CONF_DONE — Configuration complete (open-drain, goes high when configured) |
| Chân 61 | MSEL0 — Configuration mode select 0 |
| Chân 62 | MSEL1 — Configuration mode select 1 |
| Chân 63 | DEV_CLRn — Device-wide clear (active-low, optional) |
| Chân 64 | DEV_OE — Device-wide output enable (active-low, optional) |
| Chân 65 | TDI — JTAG test data input |
| Chân 66 | TMS — JTAG test mode select |
| Chân 67 | TCK — JTAG test clock |
| Chân 68 | TDO — JTAG test data output |
| Chân 69 | VCC — Core supply voltage (5 V) |
| Chân 70 | GND — Ground |
| Chân 71 | I/O — User I/O (bank 1) |
| Chân 72 | I/O — User I/O (bank 1) |
| Chân 73 | I/O — User I/O (bank 1) |
| Chân 74 | I/O — User I/O (bank 1) |
| Chân 75 | I/O — User I/O (bank 1) |
| Chân 76 | I/O — User I/O (bank 1) |
| Chân 77 | I/O — User I/O (bank 1) |
| Chân 78 | VCCIO1 — I/O bank 1 supply voltage (3.3 V or 5.0 V) |
| Chân 79 | I/O — User I/O (bank 1) |
| Chân 80 | I/O — User I/O (bank 1) |
| Chân 81 | I/O — User I/O (bank 1) |
| Chân 82 | I/O — User I/O (bank 1) |
| Chân 83 | I/O — User I/O (bank 1) |
| Chân 84 | I/O — User I/O (bank 1) |
Ứng dụng tiêu biểu
EPF8282ALC84-3 phù hợp cho 7 Áp dụngs: Legacy Industrial Bus Interface Bridge, ASIC Prototyping and Logic Verification, TTL Glue Logic Consolidation, Legacy Telecommunications Backplane Glue, Educational Hardware-Acceleration Platform, Replacement of Obsolete Altera MAX 7000 CPLDs, In-Circuit Reconfigurable Test & Measurement Front-End.
Legacy Industrial Bus Interface Bridge
The EPF8282ALC84-3 fits legacy industrial bus-bridge applications because its 68 user I/Os provide ample bidirectional signal capacity for parallel-bus protocols such as ISA, VME, or PC/104, and its 5 V core with MultiVolt I/O support lets it interface directly to both 5 V and 3.3 V peripheral ICs on the same board. The 2,500 usable gates can implement a full bus-arbitration state machine plus address-decoding glue logic that would otherwise require 5-7 discrete 74-series TTL packages. Its 125 MHz internal performance comfortably handles 33 MHz PCI or 8 MHz ISA bus cycles with margin. Engineers should pair it with a configuration EPROM (EPC1/EPC2) and provide adequate 5 V decoupling. Compared with a CPLD-only solution, the EPF8282ALC84-3 offers higher register density and more flexible state-machine implementation in a single socketed PLCC-84.
Được đề xuất
ASIC Prototyping and Logic Verification
The EPF8282ALC84-3 is well suited to ASIC prototyping because its 2,500 usable gates and 208 logic cells provide enough density to map a representative slice of a target ASIC's glue logic and control planes for pre-silicon verification. In-circuit reconfigurability (ICR) via the serial configuration EPROM interface enables rapid design-iteration cycles - a new bitstream can be loaded in seconds without powering down the prototype board. The MultiVolt I/O feature lets the FPGA connect to ASIC-development test fixtures operating at mixed 3.3 V and 5 V levels. Engineers should design for the FLEX 8000 LAB structure (8 logic elements per LAB) and use the Altera MAX+PLUS II or Quartus toolchain for synthesis. Compared with one-time-programmable CPLDs, the SRAM-based fabric allows unlimited design iterations at no per-programming cost.
Được đề xuất
TTL Glue Logic Consolidation
The EPF8282ALC84-3 is ideal for consolidating dozens of discrete 74-series TTL packages because its 2,500 usable gates and 68 user I/Os can absorb typical board-level glue logic - address decoders, wait-state generators, interrupt controllers, and simple state machines - that previously required 10-20 SSI/MSI chips. The 5 V supply and MultiVolt I/O maintain compatibility with existing TTL footprints, while the PLCC-84 J-Lead package is socketable for lab rework. In-circuit reconfigurability means design changes during the consolidation process do not require board rework - only a new bitstream. Engineers should budget for one configuration EPROM (EPC1 or EPC2) and verify timing margins against the original discrete-logic implementation. Compared with re-spinning the board to a CPLD, the EPF8282ALC84-3 keeps the existing 5 V-only supply and 84-pin footprint.
Được đề xuất
Legacy Telecommunications Backplane Glue
The EPF8282ALC84-3 fits legacy telecommunications backplane-glue applications where its 68 user I/Os can directly drive parallel TDM buses, framing circuits, and timing-distribution networks common in central-office equipment of the late 1990s and early 2000s. Its 5 V core supply matches the backplane voltage rails still common in installed telecom infrastructure, and the MultiVolt I/O permits connection to newer 3.3 V framers or PHY ICs without level shifters. The 125 MHz internal performance supports E1/T1 and basic STM-1 framing-clock rates. Engineers should add per-bank VCCIO decoupling and route configuration signals (DCLK, DATA0, nSTATUS, CONF_DONE) with short, impedance-controlled traces. Compared with modern FPGAs, the EPF8282ALC84-3 preserves the original 5 V backplane design without forcing a power-rail redesign.
Được đề xuất
Educational Hardware-Acceleration Platform
The EPF8282ALC84-3 is well suited to university and vocational training labs because its 2,500 usable gates and 208 logic cells provide enough capacity to demonstrate practical HDL designs (UARTs, FIFOs, simple CPUs) without overwhelming students, while the socketable PLCC-84 package allows chips to be reprogrammed and reused across many lab sessions. The Altera MAX+PLUS II toolchain is mature, well-documented, and still available for educational use. The 5 V supply is forgiving for student-built power supplies, and MultiVolt I/O lets the board connect to both legacy and modern peripherals. Engineers should pair the FPGA with a configuration EPROM and a JTAG header for in-system programming. Compared with modern dev boards, the EPF8282ALC84-3 teaches fundamental SRAM-FPGA concepts at a much lower per-seat cost.
Được đề xuất
Replacement of Obsolete Altera MAX 7000 CPLDs
The EPF8282ALC84-3 can replace aging Altera MAX 7000-series CPLDs in legacy designs because it offers higher logic density (2,500 gates vs typical MAX 7000 device ranges) and more flexible state-machine implementation, while keeping a 5 V core supply and similar PLCC package options. Its SRAM-based configuration allows field updates without UV-erase windows, simplifying maintenance for installed industrial controllers. The MultiVolt I/O feature eases migration when the surrounding ASICs have transitioned from 5 V to 3.3 V. Engineers should re-validate timing closure because FLEX 8000 LAB-based timing differs from MAX 7000 macrocell timing. Compared with a like-for-like MAX 7000 replacement, the EPF8282ALC84-3 delivers more capacity but requires configuration memory.
Được đề xuất
In-Circuit Reconfigurable Test & Measurement Front-End
The EPF8282ALC84-3 fits reconfigurable test & measurement front-end designs where its 68 user I/Os can capture multiple parallel sensor channels and its in-circuit reconfigurability allows the test pattern to be updated without opening the instrument chassis. The 125 MHz internal performance is sufficient for sampling-rate multiplexing and basic DSP-style preprocessing at moderate bandwidths. MultiVolt I/O permits direct connection to both 5 V and 3.3 V sensor-conditioning ASICs, simplifying the analog front-end. Engineers should isolate the configuration EPROM bus from the analog section to prevent digital switching noise coupling into sensitive measurement paths. Compared with fixed-function ASIC front-ends, the EPF8282ALC84-3 enables one instrument platform to support multiple product test profiles via bitstream swap.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho EPF8282ALC84-3 — 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 | EPF8282ALC84-2 | EPF8282ALC84-4 | EPF8282AVC84-3 | EPF8282AGI84-3 | EPF8452ALC84-3 |
|---|---|---|---|---|---|---|
| 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 |
| Brand | Altera (Intel FPGA) | Altera (Intel FPGA) | Altera (Intel FPGA) | Altera (Intel FPGA) | Altera (Intel FPGA) | Altera (Intel FPGA) |
| Speed Grade | -3 (standard production) | -2 (slower than -3) | -4 (slowest of the three) | -3 (same) | -3 (same) | -3 (same) |
| Supply Voltage (Core) | 5 V | 5 V (same) | 5 V (same) | 5 V (same) | 5 V (same) | 5 V (same) |
| MultiVolt I/O | 3.3 V or 5.0 V | 3.3 V or 5.0 V (same) | 3.3 V or 5.0 V (same) | 3.3 V or 5.0 V (same) | 3.3 V or 5.0 V (same) | 3.3 V or 5.0 V (same) |
Bảo phân biệt quan trọng
- Same PLCC-84 footprint across the FLEX 8000 EPF8282 family (vsEPF8282ATC100-3N)
- Industrial temperature option in same PLCC-84 package (vsEPF8282AGI84-3)
- Higher logic density option in same PLCC-84 footprint (vsEPF8452ALC84-3)
Ghi chú thiết kế
Estimated: At a typical utilization of 50% logic and 50% I/O toggling at 50 MHz, the EPF8282ALC84-3 core draws approximately 100-150 mA from the 5 V VCC rail. Provide at least four 0.1 µF ceramic decoupling capacitors placed within 5 mm of the VCC pins (one per quadrant) plus a single 10 µF tantalum bulk capacitor at the board entry. Each VCCIO bank has independent supply requirements and must be tied to either 3.3 V or 5.0 V - mixing within a bank is not allowed per Altera FLEX 8000 datasheet guidelines.
Route configuration signals (DCLK, DATA0, nSTATUS, CONF_DONE) as short, impedance-controlled traces and keep them away from high-speed I/O switching to avoid coupling-induced configuration errors. The JTAG pins (TCK, TMS, TDI, TDO) should be brought to a 2x5 or 1x6 header for in-system programming. Add 10 kΩ pull-up resistors to nSTATUS and CONF_DONE (open-drain) and a 10 kΩ pull-down to DEV_CLRn and DEV_OE if not actively driven, per Altera FLEX 8000 reference design recommendations.
Common pitfalls when designing with the EPF8282ALC84-3 include: (1) forgetting to supply a configuration bitstream at power-up, which leaves all I/Os in tri-state and CONF_DONE low; (2) tying VCCIO of a bank to a voltage outside the supported 3.3 V / 5.0 V set, which can damage I/O cells; (3) mixing MultiVolt I/O voltages within a single bank; (4) driving JTAG pins without isolating them from user logic during programming; and (5) using the slower -4 speed grade in designs that require the -3 timing margin without re-running static-timing analysis. Always re-validate timing closure after any speed-grade change.
Thông tin tuân thủ
EPF8282ALC84-3 is a legacy Altera FLEX 8000 family FPGA manufactured in the late 1990s / early 2000s. Specific RoHS, REACH, lead-free, halogen-free, and conflict-minerals declarations were not found in the verified web data - compliance status is marked as unknown and should be confirmed with the distributor before use in new designs subject to current environmental regulations. AEC-Q100 is not applicable (consumer/commercial-grade IC, not automotive-qualified).
