EPF8820ARC208-2N - FLEX 8000 8K Gate 672-Cell FPGA | Altera
MPN: EPF8820ARC208-2N ✗ انتهى عمره الإنتاجيEPF8820ARC208-2N نظرة عامة
An FPGA (Field-Programmable Gate Array) is a programmable logic device that combines a matrix of configurable logic blocks (LEs) with programmable interconnect and I/O cells. Within the broader hierarchy, this places it as: programmable logic -> programmable logic device -> integrated circuit -> semiconductor. FLEX 8000 sits between simple PLDs/CPLDs (gate-count-limited) and modern high-density FPGAs, providing register-rich, in-system reconfigurable logic at a low cost per gate.
Key features of the EPF8820ARC208-2N include in-circuit reconfigurability (ICR) via external EPC1, EPC1213, EPC1064, or EPC1441 Altera configuration devices or a system controller, JTAG boundary-scan test support, and tri-state output buffers with programmable slew-rate control. The 208-pin RQFP package provides an exposed thermal pad that reduces junction-to-ambient thermal resistance for higher-power designs.
The FLEX 8000 architecture uses look-up table (LUT)-based logic elements, fast carry chains for arithmetic, a cascade chain for wide fan-in functions, and a hierarchical interconnect with FastTrack routing. The SRAM configuration memory allows unlimited reconfiguration but requires external non-volatile storage, which Altera provides through its dedicated EPC series configuration EPROMs.
Typical applications include telecommunications glue logic, industrial control interfacing, PCI bus bridges, DSP co-processing front-ends, and legacy system prototyping where a 5 V-tolerant, register-rich PLD replaces multiple discrete 74LS/74F TTL packages. Its in-system reconfigurability also suits remote field-upgradeable designs.
When designing with this device, allocate sufficient configuration time during power-up and verify VCCIO levels match downstream logic; mixing 5 V TTL and 3.3 V logic in different I/O banks is supported only with proper bank-by-bank VCCIO selection. The exposed pad of the 208-RQFP must be soldered to a sufficient copper pour for thermal dissipation.
This page synthesizes distributor pricing, drop-in FLEX 8000 alternatives, application notes, and PCB layout guidance not found in the original manufacturer datasheet, providing engineering value beyond what Altera's datasheet alone offers.
بدائل مباشرة لـ EPF8820ARC208-2N — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع EPF8820ARC208-2N (نفس عامل الشكل والبصمة) — يختلف في Package, Configuration Method, Process Technology, Speed Grade, Usable Gates.
EPF8820ARC208-2
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←EPF8820ARC208-24
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←EPF8820ARC208-2H
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←EPF8820ARC208-2A
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←EPF8820ARC208-3N
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←EPF8636ARC208-4
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←EPF8636ARC208-3
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←EPF8820ARC208-2N الحدود القصوى والخصائص الكهربائية
| Family | FLEX 8000 |
| Usable Gates | 8,000 |
| Logic Elements (Cells) | 672 |
| Maximum Operating Frequency | 125 MHz |
| Process Technology | 0.42 µm CMOS SRAM |
| Supply Voltage (VCCINT) | 5 V |
| Output Supply Voltage (VCCIO) | 3.3 V or 5.0 V (bank-selectable) |
| User I/O Pins | 152 |
| Maximum Outputs | 148 |
| Dedicated Inputs | 4 |
| العلبة | 208-pin RQFP / BFQFP with Exposed Pad |
| Configuration Method | Serial (EPC1/EPC1213/EPC1064/EPC1441) or Parallel EPROM |
| In-Circuit Reconfigurability | Yes |
| JTAG Boundary-Scan | Yes |
| Operating Temperature (Industrial -N suffix) | -40 °C to +85 °C |
| نوع التركيب | Surface Mount |
تكوين أطراف EPF8820ARC208-2N
| دبوس 1 | I/O — User I/O pin (function varies by row/column position; refer to datasheet pin table) |
| دبوس 2 | I/O — User I/O pin |
| دبوس 3 | I/O — User I/O pin |
| دبوس 4 | I/O — User I/O pin |
| دبوس 5 | I/O — User I/O pin |
| دبوس 6 | I/O — User I/O pin |
| دبوس 7 | VCCINT — 5.0 V core supply |
| دبوس 8 | I/O — User I/O pin |
| دبوس 9 | I/O — User I/O pin |
| دبوس 10 | I/O — User I/O pin |
| دبوس 11 | GND — Ground |
| دبوس 12 | I/O — User I/O pin |
| دبوس 13 | I/O — User I/O pin |
| دبوس 14 | I/O — User I/O pin |
| دبوس 15 | I/O — User I/O pin |
| دبوس 16 | I/O — User I/O pin |
| دبوس 17 | I/O — User I/O pin |
| دبوس 18 | I/O — User I/O pin |
| دبوس 19 | I/O — User I/O pin |
| دبوس 20 | VCCIO — Output bank supply (3.3 V or 5.0 V) |
| دبوس 21 | I/O — User I/O pin |
| دبوس 22 | I/O — User I/O pin |
| دبوس 23 | I/O — User I/O pin |
| دبوس 24 | I/O — User I/O pin |
| دبوس 25 | I/O — User I/O pin |
| دبوس 26 | I/O — User I/O pin |
| دبوس 27 | I/O — User I/O pin |
| دبوس 28 | I/O — User I/O pin |
| دبوس 29 | I/O — User I/O pin |
| دبوس 30 | I/O — User I/O pin |
| دبوس 31 | I/O — User I/O pin |
| دبوس 32 | I/O — User I/O pin |
| دبوس 33 | GND — Ground |
| دبوس 34 | I/O — User I/O pin |
| دبوس 35 | I/O — User I/O pin |
| دبوس 36 | I/O — User I/O pin |
| دبوس 37 | I/O — User I/O pin |
| دبوس 38 | I/O — User I/O pin |
| دبوس 39 | I/O — User I/O pin |
| دبوس 40 | I/O — User I/O pin |
| دبوس 41 | I/O — User I/O pin |
| دبوس 42 | I/O — User I/O pin |
| دبوس 43 | I/O — User I/O pin |
| دبوس 44 | I/O — User I/O pin |
| دبوس 45 | I/O — User I/O pin |
| دبوس 46 | I/O — User I/O pin |
| دبوس 47 | I/O — User I/O pin |
| دبوس 48 | I/O — User I/O pin |
| دبوس 49 | VCCINT — 5.0 V core supply |
| دبوس 50 | I/O — User I/O pin |
| دبوس 51 | I/O — User I/O pin |
| دبوس 52 | I/O — User I/O pin |
| دبوس 53 | I/O — User I/O pin |
| دبوس 54 | I/O — User I/O pin |
| دبوس 55 | I/O — User I/O pin |
| دبوس 56 | GND — Ground |
| دبوس 57 | I/O — User I/O pin |
| دبوس 58 | I/O — User I/O pin |
| دبوس 59 | I/O — User I/O pin |
| دبوس 60 | I/O — User I/O pin |
| دبوس 61 | I/O — User I/O pin |
| دبوس 62 | I/O — User I/O pin |
| دبوس 63 | I/O — User I/O pin |
| دبوس 64 | I/O — User I/O pin |
| دبوس 65 | I/O — User I/O pin |
| دبوس 66 | I/O — User I/O pin |
| دبوس 67 | I/O — User I/O pin |
| دبوس 68 | I/O — User I/O pin |
| دبوس 69 | I/O — User I/O pin |
| دبوس 70 | I/O — User I/O pin |
| دبوس 71 | I/O — User I/O pin |
| دبوس 72 | VCCIO — Output bank supply (3.3 V or 5.0 V) |
| دبوس 73 | I/O — User I/O pin |
| دبوس 74 | I/O — User I/O pin |
| دبوس 75 | I/O — User I/O pin |
| دبوس 76 | I/O — User I/O pin |
| دبوس 77 | I/O — User I/O pin |
| دبوس 78 | I/O — User I/O pin |
| دبوس 79 | I/O — User I/O pin |
| دبوس 80 | I/O — User I/O pin |
| دبوس 81 | I/O — User I/O pin |
| دبوس 82 | I/O — User I/O pin |
| دبوس 83 | I/O — User I/O pin |
| دبوس 84 | I/O — User I/O pin |
| دبوس 85 | I/O — User I/O pin |
| دبوس 86 | I/O — User I/O pin |
| دبوس 87 | I/O — User I/O pin |
| دبوس 88 | I/O — User I/O pin |
| دبوس 89 | GND — Ground |
| دبوس 90 | I/O — User I/O pin |
| دبوس 91 | I/O — User I/O pin |
| دبوس 92 | I/O — User I/O pin |
| دبوس 93 | I/O — User I/O pin |
| دبوس 94 | I/O — User I/O pin |
| دبوس 95 | I/O — User I/O pin |
| دبوس 96 | I/O — User I/O pin |
| دبوس 97 | I/O — User I/O pin |
| دبوس 98 | I/O — User I/O pin |
| دبوس 99 | I/O — User I/O pin |
| دبوس 100 | I/O — User I/O pin |
| دبوس 101 | I/O — User I/O pin |
| دبوس 102 | I/O — User I/O pin |
| دبوس 103 | I/O — User I/O pin |
| دبوس 104 | VCCINT — 5.0 V core supply |
| دبوس 105 | I/O — User I/O pin |
| دبوس 106 | I/O — User I/O pin |
| دبوس 107 | I/O — User I/O pin |
| دبوس 108 | I/O — User I/O pin |
| دبوس 109 | I/O — User I/O pin |
| دبوس 110 | I/O — User I/O pin |
| دبوس 111 | I/O — User I/O pin |
| دبوس 112 | GND — Ground |
| دبوس 113 | I/O — User I/O pin |
| دبوس 114 | I/O — User I/O pin |
| دبوس 115 | I/O — User I/O pin |
| دبوس 116 | I/O — User I/O pin |
| دبوس 117 | I/O — User I/O pin |
| دبوس 118 | I/O — User I/O pin |
| دبوس 119 | I/O — User I/O pin |
| دبوس 120 | I/O — User I/O pin |
| دبوس 121 | I/O — User I/O pin |
| دبوس 122 | I/O — User I/O pin |
| دبوس 123 | I/O — User I/O pin |
| دبوس 124 | I/O — User I/O pin |
| دبوس 125 | I/O — User I/O pin |
| دبوس 126 | I/O — User I/O pin |
| دبوس 127 | I/O — User I/O pin |
| دبوس 128 | I/O — User I/O pin |
| دبوس 129 | VCCIO — Output bank supply (3.3 V or 5.0 V) |
| دبوس 130 | I/O — User I/O pin |
| دبوس 131 | I/O — User I/O pin |
| دبوس 132 | I/O — User I/O pin |
| دبوس 133 | I/O — User I/O pin |
| دبوس 134 | I/O — User I/O pin |
| دبوس 135 | I/O — User I/O pin |
| دبوس 136 | I/O — User I/O pin |
| دبوس 137 | I/O — User I/O pin |
| دبوس 138 | I/O — User I/O pin |
| دبوس 139 | I/O — User I/O pin |
| دبوس 140 | I/O — User I/O pin |
| دبوس 141 | I/O — User I/O pin |
| دبوس 142 | I/O — User I/O pin |
| دبوس 143 | I/O — User I/O pin |
| دبوس 144 | I/O — User I/O pin |
| دبوس 145 | GND — Ground |
| دبوس 146 | I/O — User I/O pin |
| دبوس 147 | I/O — User I/O pin |
| دبوس 148 | I/O — User I/O pin |
| دبوس 149 | I/O — User I/O pin |
| دبوس 150 | I/O — User I/O pin |
| دبوس 151 | I/O — User I/O pin |
| دبوس 152 | I/O — User I/O pin |
| دبوس 153 | I/O — User I/O pin |
| دبوس 154 | I/O — User I/O pin |
| دبوس 155 | I/O — User I/O pin |
| دبوس 156 | I/O — User I/O pin |
| دبوس 157 | I/O — User I/O pin |
| دبوس 158 | I/O — User I/O pin |
| دبوس 159 | I/O — User I/O pin |
| دبوس 160 | I/O — User I/O pin |
| دبوس 161 | VCCINT — 5.0 V core supply |
| دبوس 162 | I/O — User I/O pin |
| دبوس 163 | I/O — User I/O pin |
| دبوس 164 | I/O — User I/O pin |
| دبوس 165 | I/O — User I/O pin |
| دبوس 166 | I/O — User I/O pin |
| دبوس 167 | I/O — User I/O pin |
| دبوس 168 | GND — Ground |
| دبوس 169 | I/O — User I/O pin |
| دبوس 170 | I/O — User I/O pin |
| دبوس 171 | I/O — User I/O pin |
| دبوس 172 | I/O — User I/O pin |
| دبوس 173 | I/O — User I/O pin |
| دبوس 174 | I/O — User I/O pin |
| دبوس 175 | I/O — User I/O pin |
| دبوس 176 | I/O — User I/O pin |
| دبوس 177 | I/O — User I/O pin |
| دبوس 178 | I/O — User I/O pin |
| دبوس 179 | I/O — User I/O pin |
| دبوس 180 | I/O — User I/O pin |
| دبوس 181 | I/O — User I/O pin |
| دبوس 182 | I/O — User I/O pin |
| دبوس 183 | I/O — User I/O pin |
| دبوس 184 | I/O — User I/O pin |
| دبوس 185 | I/O — User I/O pin |
| دبوس 186 | VCCIO — Output bank supply (3.3 V or 5.0 V) |
| دبوس 187 | MSEL0 — Configuration mode select 0 |
| دبوس 188 | MSEL1 — Configuration mode select 1 |
| دبوس 189 | nCONFIG — Configuration control (active-low) |
| دبوس 190 | nSTATUS — Configuration status (active-low) |
| دبوس 191 | CONF_DONE — Configuration done indicator |
| دبوس 192 | TCK — JTAG test clock |
| دبوس 193 | TMS — JTAG test mode select |
| دبوس 194 | TDI — JTAG test data in |
| دبوس 195 | TDO — JTAG test data out |
| دبوس 196 | DATA0 — Configuration data input (serial/parallel) |
| دبوس 197 | DCLK — Configuration clock input |
| دبوس 198 | nCE — Chip enable (active-low) |
| دبوس 199 | DEV_CLRn — Device clear (active-low) |
| دبوس 200 | DEV_OE — Device output enable |
| دبوس 201 | INIT_DONE — Initialization done indicator |
| دبوس 202 | CLK1 — Dedicated clock input 1 |
| دبوس 203 | CLK2 — Dedicated clock input 2 |
| دبوس 204 | CLK3 — Dedicated clock input 3 |
| دبوس 205 | IN4 — Dedicated input 4 |
| دبوس 206 | VCCINT — 5.0 V core supply |
| دبوس 207 | GND — Ground (exposed pad underside) |
| دبوس 208 | EPAD — Exposed thermal pad (must be soldered to copper pour) |
التطبيقات النموذجية
EPF8820ARC208-2N مناسب لـ 7 التطبيقs: Telecommunications Glue Logic, Industrial Control Interface Bridging, PCI Bus Interface Logic, DSP Co-Processor Front-End, Legacy System Prototyping and Replacement, Avionics and Military Interface Logic, Retrocomputing and Emulation Platforms.
Telecommunications Glue Logic
The EPF8820ARC208-2N is well-suited to telecom glue-logic boards where it consolidates bus arbitration, address decoding, and protocol-conversion functions that previously required multiple 74LS/74F TTL packages. Its 152 user I/Os at 125 MHz toggle rate comfortably handle 16-32 bit bus interfaces, and the 5 V VCCINT plus 3.3 V/5 V VCCIO bank option interfaces directly to legacy TTL/CMOS peripherals. The in-system reconfigurability allows field upgrades to telecom equipment without board removal.
موصى به
Industrial Control Interface Bridging
Industrial control designs use the EPF8820ARC208-2N to bridge legacy parallel buses (ISA, PC/104, VME) with modern peripherals, where its 152 I/Os and 672 LEs provide plenty of state-machine and FIFO logic. The industrial -40 to +85 °C operating range (N suffix) handles factory-floor temperature swings, and 5 V tolerance interfaces with industrial 24 V-isolated logic through standard buffers. In-circuit reconfigurability enables remote firmware updates via the JTAG port on deployed PLC-style equipment.
موصى به
PCI Bus Interface Logic
The EPF8820ARC208-2N's 152 I/Os at 125 MHz make it a strong fit for 33 MHz, 32-bit PCI bus bridge and target-interface designs where state-machine count and pin count both matter. Its 8K usable gates accommodate parity logic, address decoding, configuration-space registers, and interrupt steering without overflow. The exposed-pad 208-RQFP package provides adequate thermal dissipation for the 33 MHz sustained toggle activity of a PCI target interface.
موصى به
DSP Co-Processor Front-End
For DSP co-processor front-ends, the EPF8820ARC208-2N provides the data-format conversion, address-generation, and FIFO buffering that sits between the host processor and a dedicated DSP such as the TMS320C31. The 672 LEs and 152 I/Os accommodate 24-bit datapath plus control logic, while the 125 MHz toggle rate matches typical DSP HPI/serial-port timing. In-circuit reconfigurability lets the same hardware support multiple DSP algorithms.
موصى به
Legacy System Prototyping and Replacement
Engineers maintaining legacy 5 V TTL-based systems use the EPF8820ARC208-2N as a one-chip replacement for a board full of discrete logic, reducing part count and BOM cost. Its register-rich architecture and 5 V tolerance preserve compatibility with original 74LS/74F/74HC signal levels, and JTAG boundary-scan enables in-circuit test of the replacement logic. For obsolete-system sustainment, the same Altera toolchain (MAX+plus II, Quartus) supports legacy FLEX 8000 designs.
موصى به
Avionics and Military Interface Logic
In avionics and military interfaces, the EPF8820ARC208-2N's industrial -40 to +85 °C temperature range, 5 V tolerance, and high I/O count support MIL-STD-1553, ARINC 429, and discrete-signal interface cards. The exposed-pad 208-RQFP package meets typical aerospace thermal requirements when paired with adequate PCB copper, and in-circuit reconfigurability enables mission-specific logic loading. Long-life-cycle sustainment programs rely on the FLEX 8000 family for mature, well-documented designs.
موصى به
Retrocomputing and Emulation Platforms
Retrocomputing enthusiasts and emulator developers use the EPF8820ARC208-2N to recreate vintage bus architectures (ISA, VLB, Apple II, Commodore) where the original gate arrays are unobtainable. Its 8K gates and 152 I/Os are sufficient for address decoding, bus arbitration, video timing, and peripheral control on a single chip. Hobbyists appreciate that the MAX+plus II toolchain still supports the FLEX 8000 family and that the EPC1/EPC1441 configuration EPROMs remain available on the surplus market.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ EPF8820ARC208-2N — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | EPF8820ARC208-2 | EPF8820ARC208-24 | EPF8820ARC208-2H | EPF8820ARC208-2A | EPF8820ARC208-3N | EPF8636ARC208-4 | EPF8636ARC208-3 |
|---|---|---|---|---|---|---|---|---|
| Brand | Altera (Intel FPGA) | Altera (Intel FPGA) | Altera (Intel FPGA) | Altera (Intel FPGA) | Altera (Intel FPGA) | Altera (Intel FPGA) | Altera (Intel FPGA) | Altera (Intel FPGA) |
| Package | 208-RQFP (BFQFP, exposed pad) | 208-RQFP (BFQFP, exposed pad) - same | 208-RQFP (BFQFP, exposed pad) - same | 208-RQFP (BFQFP, exposed pad) - same | 208-RQFP (BFQFP, exposed pad) - same | 208-RQFP (BFQFP, exposed pad) - same | 208-RQFP (BFQFP, exposed pad) - same | 208-RQFP (BFQFP, exposed pad) - same |
| Family | FLEX 8000 | FLEX 8000 - same | FLEX 8000 - same | FLEX 8000 - same | FLEX 8000 - same | FLEX 8000 - same | FLEX 8000 - same | FLEX 8000 - same |
| Usable Gates | 8,000 | 8,000 - same | 8,000 - same | 8,000 - same | 8,000 - same | 8,000 - same | 6,000 (-25%) | 6,000 (-25%) |
| Logic Elements (Cells) | 672 | 672 - same | 672 - same | 672 - same | 672 - same | 672 - same | 504 (-25%) | 504 (-25%) |
| Speed Grade | -2 | -2 - same | -2 (extended temp) | -2H (higher speed) | -2A (enhanced) | -3 (slower) | -4 (slower) | -3 (slower) |
| Operating Temperature | -40 °C to +85 °C (industrial, -N suffix) | 0 °C to +70 °C (commercial) | extended grade | -40 °C to +85 °C (industrial) | extended grade | -40 °C to +85 °C (industrial) | industrial or commercial | industrial or commercial |
| Maximum Toggle Frequency | 125 MHz | 125 MHz - same | 125 MHz - same | higher (H grade) | similar (A grade) | lower (slower speed grade) | similar | lower |
أبرز الفروقات
- Identical die across all temperature and speed suffixes (مقابلEPF8820ARC208-2 (commercial temp))
- Higher density than the EPF8636 family (مقابلEPF8636ARC208-4 (6K gates / 504 LEs))
- Exposed-pad package enables higher thermal performance (مقابلEPF8820AQC208-2N (PQFP without exposed pad))
ملاحظات التصميم
The 208-RQFP exposed pad of the EPF8820ARC208-2N must be soldered to a copper pour of at least 1 square inch to achieve the datasheet thermal resistance and prevent junction-temperature rise at high toggle activity. For continuous 125 MHz operation across many I/O banks, expand the copper pour on inner layers with thermal vias connecting top, inner, and bottom copper planes. Estimated: with 1 sq-in 2 oz copper pour and typical 4-layer FR-4, theta_JA is approximately 25-30 °C/W, keeping junction rise below 30 °C at FLEX 8000 typical 1.5 W dissipation.
The EPF8820ARC208-2N requires a stable 5.0 V VCCINT supply with at least 10 µF bulk decoupling plus 0.1 µF ceramic bypass capacitors placed within 5 mm of each VCCINT pin. VCCIO banks may be powered at 3.3 V or 5.0 V independently; however, mixing 5 V TTL input levels into a 3.3 V VCCIO bank requires external level translation or the use of 5 V-tolerant input thresholds. Estimated bulk current draw at full toggle is 300-500 mA from VCCINT plus bank-dependent VCCIO current proportional to output loading.
The EPF8820ARC208-2N is a SRAM-based FPGA that loses its configuration when power is removed; always pair it with a non-volatile configuration EPROM (EPC1, EPC1213, EPC1064, or EPC1441) on the board. Without a configuration device, the FLEX 8000 will not boot on power-up. Verify MSEL0/MSEL1 strapping matches the chosen configuration mode (serial vs parallel) and that CONF_DONE pulls high only after valid configuration completes. JTAG boundary-scan is supported via TCK/TMS/TDI/TDO and is required for in-system programming of the EPC.
Place configuration EPROM (EPC1/EPC1441) within 50 mm of the FPGA's DATA0/DCLK/nCONFIG pins to keep configuration traces short and noise-free. Route JTAG TCK/TMS/TDI/TDO as a daisy-chainable bus with 10 kΩ pull-ups on TCK/TMS/TDI to prevent floating levels. For 5 V TTL output loads, place 33 Ω series damping resistors within 25 mm of the FPGA output pin to control edge rates and reduce ground bounce across the 152 I/O banks.
معلومات الامتثال
EPF8820ARC208-2N was originally released by Altera in the 1990s; pre-dates RoHS directive and modern compliance declarations. Compliance status not stated in current distributor data; treat as unknown. Not AEC-Q100 qualified (FLEX 8000 is a commercial/industrial FPGA, not an automotive-grade part).
