EPF8820ARC-4N - FLEX 8000 FPGA 672-Cell 5V | Intel (Altera)
Артикул: EPF8820ARC-4N ✗ Снят с производства| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $38.5 | $38,50 |
| 10 | $33.2 | $332,00 |
| 100 | $27.95 | $2.795,00 |
| 500 | $23.1 | $11.550,00 |
| 1.000 | $19.4 | $19.400,00 |
EPF8820ARC-4N Обзор
FLEX 8000 devices are SRAM-based programmable logic devices (PLDs). They belong to the broader taxonomy of FPGAs -> programmable logic -> logic ICs -> integrated circuits. Unlike antifuse or flash FPGAs, FLEX 8000 SRAM cells must be configured at every system power-up using external memory, which makes them reconfigurable in-circuit but volatile. Within the family, the EPF8820 sits in the mid-density tier between the smaller EPF8282/EPF8452 and the larger EPF8636/EPF81188.
Key features of the EPF8820ARC-4N include 672 logic elements (LEs), 152 maximum user I/O pins, an embedded array block for wide fan-in functions, FastTrack interconnect for predictable routing delays, and a 4-input look-up table (LUT) per logic element. The '-4N' speed grade combined with industrial temperature support (0 °C to +70 °C junction) makes the part a drop-in upgrade candidate for FLEX 8000 designs where timing closure is critical. The exposed pad on the RQFP-208 package provides an additional thermal dissipation path.
The device is configured at power-up via an industry-standard parallel EPROM or via Altera's serial configuration devices EPC1, EPC1064, EPC1213, and EPC1441. After configuration, the SRAM cells define both the logic function and the interconnect, allowing full in-system reprogrammability. The architecture is supported by the Altera MAX+PLUS II and Quartus design toolchains, which accept schematics, VHDL, and Verilog HDL inputs.
Typical applications include glue logic for legacy 5 V embedded systems, industrial control and instrumentation, bus-interface bridging, and ASIC prototyping where the design is intended to migrate to a hard-structured ASIC. The wide operating voltage and broad third-party IP ecosystem (UARTs, FIFOs, memory controllers) extend the device's usefulness to telecom, military, and avionics platforms where FLEX 8000 remains a long-lived standard.
A key design consideration for EPF8820ARC-4N is the configuration memory interface: because the SRAM configuration is volatile, the board must include a configuration EPROM, a microcontroller loader, or a JTAG chain (IEEE 1149.1 boundary-scan) to reload the bitstream on every power-up. Designers should also budget for the 5 V I/O bank supply and ensure that all inputs stay within the 5 V tolerant range to avoid latch-up.
This page synthesizes distributor pricing, drop-in FLEX 8000 family alternatives, and practical configuration/PCB layout notes not found in the manufacturer datasheet, giving engineers a single source for parametric, lifecycle, and replacement decisions.
Аналоги без доработки для EPF8820ARC-4N — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с EPF8820ARC-4N (тот же форм-фактор и посадочное место) — отличается по Process Technology, Package, Operating Temperature, Speed Grade, Usable Gates.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
EPF8820ARC208-4
✅ Прямая замена✓ В наличии
$25.4 / шт.
Открыть даташит →EPF8820ARC-4
✅ Прямая замена✓ В наличии
$19.95 / шт.
Открыть даташит →EPF8820ARC208-4N
✅ Прямая замена✓ В наличии
$32 / шт.
Открыть даташит →EPF8636ARC208-4
✅ Прямая замена✓ В наличии
$16.5 / шт.
Открыть даташит →EPF8636ARC208-3
✅ Прямая замена✓ В наличии
$19.95 / шт.
Открыть даташит →EPF8820ARC-4N Максимальные параметры и электрические характеристики
| Family | FLEX 8000 |
| Usable Gates | 8,000 |
| Logic Elements | 672 |
| Maximum User I/O | 152 |
| Process Technology | 0.42 µm CMOS SRAM |
| Напряжение питания | 5 V |
| Maximum Operating Frequency | 125 MHz |
| Корпус | 208-pin RQFP (Plastic Quad Flat Pack with exposed pad) |
| LE Architecture | 4-input LUT + register |
| Configuration Method | SRAM, loaded at power-up |
| Configuration Devices | EPC1, EPC1064, EPC1213, EPC1441 |
| Boundary Scan | JTAG IEEE 1149.1 |
| Speed Grade | -4 (industrial) |
| Тип монтажа | Surface Mount |
Конфигурация выводов EPF8820ARC-4N
| Контакт 1 | I/O — User I/O pin (bank 1) |
| Контакт 2 | I/O — User I/O pin (bank 1) |
| Контакт 3 | I/O — User I/O pin (bank 1) |
| Контакт 4 | I/O — User I/O pin (bank 1) |
| Контакт 5 | I/O — User I/O pin (bank 1) |
| Контакт 6 | I/O — User I/O pin (bank 1) |
| Контакт 7 | I/O — User I/O pin (bank 1) |
| Контакт 8 | I/O — User I/O pin (bank 1) |
| Контакт 9 | I/O — User I/O pin (bank 1) |
| Контакт 10 | I/O — User I/O pin (bank 1) |
| Контакт 11 | VCCIO1 — I/O bank 1 supply (5V) |
| Контакт 12 | I/O — User I/O pin (bank 2) |
| Контакт 13 | I/O — User I/O pin (bank 2) |
| Контакт 14 | I/O — User I/O pin (bank 2) |
| Контакт 15 | I/O — User I/O pin (bank 2) |
| Контакт 16 | I/O — User I/O pin (bank 2) |
| Контакт 17 | I/O — User I/O pin (bank 2) |
| Контакт 18 | I/O — User I/O pin (bank 2) |
| Контакт 19 | I/O — User I/O pin (bank 2) |
| Контакт 20 | I/O — User I/O pin (bank 2) |
| Контакт 21 | GND — Ground |
| Контакт 22 | I/O — User I/O pin (bank 3) |
| Контакт 23 | I/O — User I/O pin (bank 3) |
| Контакт 24 | I/O — User I/O pin (bank 3) |
| Контакт 25 | I/O — User I/O pin (bank 3) |
| Контакт 26 | I/O — User I/O pin (bank 3) |
| Контакт 27 | I/O — User I/O pin (bank 3) |
| Контакт 28 | I/O — User I/O pin (bank 3) |
| Контакт 29 | I/O — User I/O pin (bank 3) |
| Контакт 30 | I/O — User I/O pin (bank 3) |
| Контакт 31 | I/O — User I/O pin (bank 3) |
| Контакт 32 | VCCIO3 — I/O bank 3 supply (5V) |
| Контакт 33 | I/O — User I/O pin (bank 3) |
| Контакт 34 | I/O — User I/O pin (bank 3) |
| Контакт 35 | I/O — User I/O pin (bank 3) |
| Контакт 36 | I/O — User I/O pin (bank 3) |
| Контакт 37 | I/O — User I/O pin (bank 3) |
| Контакт 38 | I/O — User I/O pin (bank 3) |
| Контакт 39 | I/O — User I/O pin (bank 3) |
| Контакт 40 | I/O — User I/O pin (bank 3) |
| Контакт 41 | GND — Ground |
| Контакт 42 | I/O — User I/O pin (bank 3) |
| Контакт 43 | I/O — User I/O pin (bank 3) |
| Контакт 44 | I/O — User I/O pin (bank 3) |
| Контакт 45 | I/O — User I/O pin (bank 3) |
| Контакт 46 | I/O — User I/O pin (bank 3) |
| Контакт 47 | I/O — User I/O pin (bank 3) |
| Контакт 48 | I/O — User I/O pin (bank 3) |
| Контакт 49 | I/O — User I/O pin (bank 3) |
| Контакт 50 | VCCIO3 — I/O bank 3 supply (5V) |
| Контакт 51 | I/O — User I/O pin (bank 4) |
| Контакт 52 | I/O — User I/O pin (bank 4) |
| Контакт 53 | I/O — User I/O pin (bank 4) |
| Контакт 54 | I/O — User I/O pin (bank 4) |
| Контакт 55 | I/O — User I/O pin (bank 4) |
| Контакт 56 | I/O — User I/O pin (bank 4) |
| Контакт 57 | I/O — User I/O pin (bank 4) |
| Контакт 58 | I/O — User I/O pin (bank 4) |
| Контакт 59 | I/O — User I/O pin (bank 4) |
| Контакт 60 | I/O — User I/O pin (bank 4) |
| Контакт 61 | I/O — User I/O pin (bank 4) |
| Контакт 62 | GND — Ground |
| Контакт 63 | I/O — User I/O pin (bank 4) |
| Контакт 64 | I/O — User I/O pin (bank 4) |
| Контакт 65 | I/O — User I/O pin (bank 4) |
| Контакт 66 | I/O — User I/O pin (bank 4) |
| Контакт 67 | I/O — User I/O pin (bank 4) |
| Контакт 68 | I/O — User I/O pin (bank 4) |
| Контакт 69 | I/O — User I/O pin (bank 4) |
| Контакт 70 | I/O — User I/O pin (bank 4) |
| Контакт 71 | I/O — User I/O pin (bank 4) |
| Контакт 72 | I/O — User I/O pin (bank 4) |
| Контакт 73 | I/O — User I/O pin (bank 4) |
| Контакт 74 | I/O — User I/O pin (bank 4) |
| Контакт 75 | I/O — User I/O pin (bank 4) |
| Контакт 76 | I/O — User I/O pin (bank 4) |
| Контакт 77 | I/O — User I/O pin (bank 4) |
| Контакт 78 | I/O — User I/O pin (bank 4) |
| Контакт 79 | VCCIO4 — I/O bank 4 supply (5V) |
| Контакт 80 | I/O — User I/O pin (bank 4) |
| Контакт 81 | I/O — User I/O pin (bank 4) |
| Контакт 82 | I/O — User I/O pin (bank 4) |
| Контакт 83 | GND — Ground |
| Контакт 84 | I/O — User I/O pin (bank 5) |
| Контакт 85 | I/O — User I/O pin (bank 5) |
| Контакт 86 | I/O — User I/O pin (bank 5) |
| Контакт 87 | I/O — User I/O pin (bank 5) |
| Контакт 88 | I/O — User I/O pin (bank 5) |
| Контакт 89 | I/O — User I/O pin (bank 5) |
| Контакт 90 | I/O — User I/O pin (bank 5) |
| Контакт 91 | I/O — User I/O pin (bank 5) |
| Контакт 92 | I/O — User I/O pin (bank 5) |
| Контакт 93 | I/O — User I/O pin (bank 5) |
| Контакт 94 | I/O — User I/O pin (bank 5) |
| Контакт 95 | VCCIO5 — I/O bank 5 supply (5V) |
| Контакт 96 | I/O — User I/O pin (bank 5) |
| Контакт 97 | I/O — User I/O pin (bank 5) |
| Контакт 98 | I/O — User I/O pin (bank 5) |
| Контакт 99 | I/O — User I/O pin (bank 5) |
| Контакт 100 | I/O — User I/O pin (bank 5) |
| Контакт 101 | I/O — User I/O pin (bank 5) |
| Контакт 102 | I/O — User I/O pin (bank 5) |
| Контакт 103 | I/O — User I/O pin (bank 5) |
| Контакт 104 | GND — Ground |
| Контакт 105 | I/O — User I/O pin (bank 5) |
| Контакт 106 | I/O — User I/O pin (bank 5) |
| Контакт 107 | I/O — User I/O pin (bank 5) |
| Контакт 108 | I/O — User I/O pin (bank 5) |
| Контакт 109 | I/O — User I/O pin (bank 5) |
| Контакт 110 | I/O — User I/O pin (bank 5) |
| Контакт 111 | I/O — User I/O pin (bank 5) |
| Контакт 112 | I/O — User I/O pin (bank 5) |
| Контакт 113 | I/O — User I/O pin (bank 5) |
| Контакт 114 | I/O — User I/O pin (bank 5) |
| Контакт 115 | I/O — User I/O pin (bank 5) |
| Контакт 116 | VCCIO5 — I/O bank 5 supply (5V) |
| Контакт 117 | I/O — User I/O pin (bank 6) |
| Контакт 118 | I/O — User I/O pin (bank 6) |
| Контакт 119 | I/O — User I/O pin (bank 6) |
| Контакт 120 | I/O — User I/O pin (bank 6) |
| Контакт 121 | I/O — User I/O pin (bank 6) |
| Контакт 122 | I/O — User I/O pin (bank 6) |
| Контакт 123 | I/O — User I/O pin (bank 6) |
| Контакт 124 | I/O — User I/O pin (bank 6) |
| Контакт 125 | GND — Ground |
| Контакт 126 | I/O — User I/O pin (bank 6) |
| Контакт 127 | I/O — User I/O pin (bank 6) |
| Контакт 128 | I/O — User I/O pin (bank 6) |
| Контакт 129 | I/O — User I/O pin (bank 6) |
| Контакт 130 | I/O — User I/O pin (bank 6) |
| Контакт 131 | I/O — User I/O pin (bank 6) |
| Контакт 132 | I/O — User I/O pin (bank 6) |
| Контакт 133 | I/O — User I/O pin (bank 6) |
| Контакт 134 | I/O — User I/O pin (bank 6) |
| Контакт 135 | I/O — User I/O pin (bank 6) |
| Контакт 136 | I/O — User I/O pin (bank 6) |
| Контакт 137 | VCCIO6 — I/O bank 6 supply (5V) |
| Контакт 138 | I/O — User I/O pin (bank 6) |
| Контакт 139 | I/O — User I/O pin (bank 6) |
| Контакт 140 | I/O — User I/O pin (bank 6) |
| Контакт 141 | I/O — User I/O pin (bank 6) |
| Контакт 142 | I/O — User I/O pin (bank 6) |
| Контакт 143 | I/O — User I/O pin (bank 6) |
| Контакт 144 | I/O — User I/O pin (bank 6) |
| Контакт 145 | I/O — User I/O pin (bank 6) |
| Контакт 146 | GND — Ground |
| Контакт 147 | I/O — User I/O pin (bank 7) |
| Контакт 148 | I/O — User I/O pin (bank 7) |
| Контакт 149 | I/O — User I/O pin (bank 7) |
| Контакт 150 | I/O — User I/O pin (bank 7) |
| Контакт 151 | I/O — User I/O pin (bank 7) |
| Контакт 152 | I/O — User I/O pin (bank 7) |
| Контакт 153 | I/O — User I/O pin (bank 7) |
| Контакт 154 | I/O — User I/O pin (bank 7) |
| Контакт 155 | I/O — User I/O pin (bank 7) |
| Контакт 156 | VCCIO7 — I/O bank 7 supply (5V) |
| Контакт 157 | I/O — User I/O pin (bank 7) |
| Контакт 158 | I/O — User I/O pin (bank 7) |
| Контакт 159 | I/O — User I/O pin (bank 7) |
| Контакт 160 | I/O — User I/O pin (bank 7) |
| Контакт 161 | I/O — User I/O pin (bank 7) |
| Контакт 162 | I/O — User I/O pin (bank 7) |
| Контакт 163 | I/O — User I/O pin (bank 7) |
| Контакт 164 | I/O — User I/O pin (bank 7) |
| Контакт 165 | I/O — User I/O pin (bank 7) |
| Контакт 166 | I/O — User I/O pin (bank 7) |
| Контакт 167 | GND — Ground |
| Контакт 168 | I/O — User I/O pin (bank 7) |
| Контакт 169 | I/O — User I/O pin (bank 7) |
| Контакт 170 | I/O — User I/O pin (bank 7) |
| Контакт 171 | I/O — User I/O pin (bank 7) |
| Контакт 172 | I/O — User I/O pin (bank 7) |
| Контакт 173 | I/O — User I/O pin (bank 7) |
| Контакт 174 | I/O — User I/O pin (bank 7) |
| Контакт 175 | I/O — User I/O pin (bank 7) |
| Контакт 176 | I/O — User I/O pin (bank 7) |
| Контакт 177 | VCCIO7 — I/O bank 7 supply (5V) |
| Контакт 178 | I/O — User I/O pin (bank 8) |
| Контакт 179 | I/O — User I/O pin (bank 8) |
| Контакт 180 | I/O — User I/O pin (bank 8) |
| Контакт 181 | I/O — User I/O pin (bank 8) |
| Контакт 182 | I/O — User I/O pin (bank 8) |
| Контакт 183 | I/O — User I/O pin (bank 8) |
| Контакт 184 | I/O — User I/O pin (bank 8) |
| Контакт 185 | I/O — User I/O pin (bank 8) |
| Контакт 186 | I/O — User I/O pin (bank 8) |
| Контакт 187 | I/O — User I/O pin (bank 8) |
| Контакт 188 | I/O — User I/O pin (bank 8) |
| Контакт 189 | I/O — User I/O pin (bank 8) |
| Контакт 190 | GND — Ground |
| Контакт 191 | I/O — User I/O pin (bank 8) |
| Контакт 192 | I/O — User I/O pin (bank 8) |
| Контакт 193 | I/O — User I/O pin (bank 8) |
| Контакт 194 | I/O — User I/O pin (bank 8) |
| Контакт 195 | I/O — User I/O pin (bank 8) |
| Контакт 196 | I/O — User I/O pin (bank 8) |
| Контакт 197 | I/O — User I/O pin (bank 8) |
| Контакт 198 | I/O — User I/O pin (bank 8) |
| Контакт 199 | I/O — User I/O pin (bank 8) |
| Контакт 200 | I/O — User I/O pin (bank 8) |
| Контакт 201 | I/O — User I/O pin (bank 8) |
| Контакт 202 | VCCINT — Internal core supply (5V) |
| Контакт 203 | I/O — User I/O pin (bank 8) |
| Контакт 204 | I/O — User I/O pin (bank 8) |
| Контакт 205 | I/O — User I/O pin (bank 8) |
| Контакт 206 | I/O — User I/O pin (bank 8) |
| Контакт 207 | I/O — User I/O pin (bank 8) |
| Контакт 208 | I/O — User I/O pin (bank 8) |
Типичное применение
EPF8820ARC-4N подходит для 6 применениеs: 5V Embedded Glue Logic, Industrial Control and Instrumentation Front-End, ASIC Prototyping and Emulation, Telecom Line-Card Glue Logic, Legacy Bus-Interface Bridging, Military and Avionics Long-Life Platforms.
5V Embedded Glue Logic
The EPF8820ARC-4N's 672 logic elements and 152 5V-TTL-compatible I/O pins make it a natural fit for glue-logic consolidation around legacy 5V microprocessors such as the 8051, 68SEC000, or i386EX. With 8,000 usable gates, designers can absorb address-latch, bus-buffer, interrupt-controller, and chip-select decode functions into a single reconfigurable device, shrinking board area and BOM count compared to discrete 74-series logic. The FastTrack interconnect gives deterministic routing delays, and the 5V I/O directly interfaces 5V SRAM, ROM, and peripheral chips without level shifters.
Рекомендуется
Industrial Control and Instrumentation Front-End
The 5V supply, 0 to +70 °C industrial temperature support of the -4N speed grade, and 152 I/O pins position the EPF8820ARC-4N as a robust controller for industrial front-ends. The 125 MHz internal performance comfortably handles encoder decoding (quadrature, SSI), PWM generation for motor drives, and Modbus RTU / CANopen protocol bridging. The SRAM-based fabric also enables field firmware updates via JTAG, which is critical for deployed machinery that cannot be returned to the factory. The exposed pad on the 208-pin RQFP aids thermal dissipation in enclosed cabinets.
Рекомендуется
ASIC Prototyping and Emulation
The EPF8820ARC-4N's 8,000 gates and 125 MHz performance make it a classic ASIC prototyping vehicle for designs that will eventually migrate to a structured ASIC or gate-array. Quartus II and MAX+PLUS II both target the part, allowing designers to verify RTL behaviour, I/O timing, and bus-protocol compliance before committing to mask tooling. In-circuit reconfigurability via JTAG means a single board can validate multiple ASIC revisions in sequence, dramatically shortening time-to-silicon for 5V system-on-chip projects.
Рекомендуется
Telecom Line-Card Glue Logic
Telecom line cards historically depend on 5V TTL-compatible PLDs for time-slot interchangers, HDLC framing, alarm signalling, and clock-data recovery glue. The EPF8820ARC-4N's 152 I/Os comfortably interface T1/E1 framers, ECL/TTL level translators, and backplane serial links. Its 125 MHz internal performance meets the needs of 8.192 MHz E1 and 1.544 MHz T1 reference clocks with margin for oversampling. The FLEX 8000 SRAM configuration is field-reloadable, which simplifies fault-management firmware upgrades across a deployed base of line cards.
Рекомендуется
Legacy Bus-Interface Bridging
Many legacy embedded platforms (VME, ISA, PC/104, Multibus) still require 5V interface bridges, and the EPF8820ARC-4N is well suited to this role. Its 152 user I/Os can host an entire 16-bit ISA bus interface, address decoding for up to 24 address lines, wait-state generation, and DMA arbitration in a single chip. Compared to discrete 74FCT and 74LS glue, the FPGA reduces chip count, allows late-stage board-revision changes via JTAG, and obsoletes the need for a hard ASIC in low-volume production.
Рекомендуется
Military and Avionics Long-Life Platforms
The FLEX 8000 family has decades of proven deployment in avionics and military platforms, where re-procurement risk favours parts with long-form-change histories. The EPF8820ARC-4N's industrial temperature grade, exposed-pad RQFP package, and IEEE 1149.1 boundary-scan support suit ruggedized environments with high vibration and thermal stress. Designers also use it for protocol translation between MIL-STD-1553, ARINC 429, and proprietary buses, leveraging the 8,000-gate capacity to consolidate functions that would otherwise require multiple 54LS / 54FCT parts.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для EPF8820ARC-4N — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | EPF8820ARC208-4 | EPF8820ARC-4 | EPF8820ARC208-4N | EPF8636ARC208-4 | EPF8636ARC208-3 |
|---|---|---|---|---|---|---|
| Package | 208-pin RQFP | 208-pin RQFP (same) | 208-pin RQFP (same) | 208-pin RQFP (same) | 208-pin RQFP (same) | 208-pin RQFP (same) |
| Brand | Intel | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) |
| Usable Gates | 8,000 | 8,000 (same die) | 8,000 (same die) | 8,000 (same die) | 12,000 (higher density) | 12,000 (higher density) |
| Logic Elements | 672 | 672 (same die) | 672 (same die) | 672 (same die) | 504 (different die) | 504 (different die) |
| Maximum User I/O | 152 | 152 | 152 | 152 | 152 | 152 |
| Speed Grade | -4N (industrial) | -4 (commercial) | -4 | -4N (industrial) | -4 | -3 (slower) |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| Configuration Bitstream Compatible | Yes (self) | Yes | Yes | Yes | No (different device ID) | No (different device ID) |
Ключевые отличия
- Identical 208-pin RQFP package with bitstream compatibility (против EPF8636ARC208-4)
- Industrial -4N speed grade with extended temperature support (против EPF8820ARC208-4)
- Higher I/O density than smaller FLEX 8000 family members (против EPF8452AQC160-4)
Заметки по проектированию
The EPF8820ARC-4N requires three supply rails: VCCINT (5 V core), VCCIO1 through VCCIO8 (per-bank I/O 5 V supplies), and the exposed-pad thermal connection to ground. Each VCCIO bank must be decoupled locally with 0.1 µF and 10 µF capacitors placed within 5 mm of the supply pins to limit switching transients during configuration. Bulk decoupling of 47–100 µF is recommended at the regulator. Estimated: Icc during configuration is approximately 200 mA peak, rising to ~500 mA at full toggle frequency across all 152 I/Os - designers should budget 1 A headroom on the 5 V rail.
Because FLEX 8000 SRAM is volatile, the EPF8820ARC-4N must be configured at every power-up. Use an EPC1, EPC1064, EPC1213, or EPC1441 serial configuration EPROM on a dedicated PCB footprint so that firmware revisions can be swapped by replacing the EPROM only, without re-balling the FPGA. Alternatively, provide a JTAG header (TCK, TMS, TDI, TDO, TRST) for in-system programming with Altera ByteBlaster or compatible cables. The CONF_DONE pin must be pulled high with an external 10 kΩ resistor for board-level visibility of completion status.
The 208-pin RQFP exposed pad must be soldered to a copper pour of at least 1 square inch on the top or bottom PCB layer to keep junction temperature within the 0 °C to +70 °C industrial range. Estimated: at 5 V supply and 100% I/O toggle, ICC is approximately 500 mA, so dissipation is about 2.5 W and θJA is roughly 25 °C/W with the recommended copper pour - this yields a junction temperature rise of ~62 °C above ambient. Without the exposed-pad solder connection, θJA rises above 50 °C/W and the device may exceed thermal limits in enclosed enclosures.
Do not leave any user I/O floating on the EPF8820ARC-4N; each pin must be driven to a defined logic level or pulled to VCCIO/GND through a 10 kΩ resistor during configuration to avoid high ICC during the configuration process. Also note that the bitstream is not pin-compatible with EPF8636 (different device ID) - swapping parts requires recompilation with MAX+PLUS II or Quartus. Finally, do not apply 3.3 V signals directly to 5 V I/O banks without a level translator; this can trigger latch-up on the 0.42 µm CMOS output drivers.
Информация о соответствии
The EPF8820ARC-4N ships primarily in lead-bearing RQFP packaging; explicit RoHS and lead-free status was not retrieved in the verified web data and is marked [DATA_NEEDED]. AEC-Q100 does not apply to FPGAs of this generation. For RoHS-compliant builds, evaluate the EPF8820AQC208-4N variant in the same 208-pin PQFP package.
