EPF8820ARC208-2N - FLEX 8000 8K Gate 672-Cell FPGA | Altera
MPN: EPF8820ARC208-2N ✗ اختتامِ زندگیEPF8820ARC208-2N جائزہ
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.
کے لیے ڈراپ اِن متبادل EPF8820ARC208-2N — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں EPF8820ARC208-2N (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Configuration Method, Process Technology, Speed Grade, Usable Gates.
EPF8820ARC208-2
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →EPF8820ARC208-24
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →EPF8820ARC208-2H
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →EPF8820ARC208-2A
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →EPF8820ARC208-3N
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →EPF8636ARC208-4
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →EPF8636ARC208-3
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →EPF8820ARC208-2N زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| 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 |
| پیکیج | 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 |
| ماؤنٹنگ ٹائپ | Surface Mount |
EPF8820ARC208-2N پن کنفیگریشن
| پن 1 | I/O — User I/O pin (function varies by row/column position; refer to datasheet pin table) |
| پن 2 | I/O — User I/O pin |
| پن 3 | I/O — User I/O pin |
| پن 4 | I/O — User I/O pin |
| پن 5 | I/O — User I/O pin |
| پن 6 | I/O — User I/O pin |
| پن 7 | VCCINT — 5.0 V core supply |
| پن 8 | I/O — User I/O pin |
| پن 9 | I/O — User I/O pin |
| پن 10 | I/O — User I/O pin |
| پن 11 | GND — Ground |
| پن 12 | I/O — User I/O pin |
| پن 13 | I/O — User I/O pin |
| پن 14 | I/O — User I/O pin |
| پن 15 | I/O — User I/O pin |
| پن 16 | I/O — User I/O pin |
| پن 17 | I/O — User I/O pin |
| پن 18 | I/O — User I/O pin |
| پن 19 | I/O — User I/O pin |
| پن 20 | VCCIO — Output bank supply (3.3 V or 5.0 V) |
| پن 21 | I/O — User I/O pin |
| پن 22 | I/O — User I/O pin |
| پن 23 | I/O — User I/O pin |
| پن 24 | I/O — User I/O pin |
| پن 25 | I/O — User I/O pin |
| پن 26 | I/O — User I/O pin |
| پن 27 | I/O — User I/O pin |
| پن 28 | I/O — User I/O pin |
| پن 29 | I/O — User I/O pin |
| پن 30 | I/O — User I/O pin |
| پن 31 | I/O — User I/O pin |
| پن 32 | I/O — User I/O pin |
| پن 33 | GND — Ground |
| پن 34 | I/O — User I/O pin |
| پن 35 | I/O — User I/O pin |
| پن 36 | I/O — User I/O pin |
| پن 37 | I/O — User I/O pin |
| پن 38 | I/O — User I/O pin |
| پن 39 | I/O — User I/O pin |
| پن 40 | I/O — User I/O pin |
| پن 41 | I/O — User I/O pin |
| پن 42 | I/O — User I/O pin |
| پن 43 | I/O — User I/O pin |
| پن 44 | I/O — User I/O pin |
| پن 45 | I/O — User I/O pin |
| پن 46 | I/O — User I/O pin |
| پن 47 | I/O — User I/O pin |
| پن 48 | I/O — User I/O pin |
| پن 49 | VCCINT — 5.0 V core supply |
| پن 50 | I/O — User I/O pin |
| پن 51 | I/O — User I/O pin |
| پن 52 | I/O — User I/O pin |
| پن 53 | I/O — User I/O pin |
| پن 54 | I/O — User I/O pin |
| پن 55 | I/O — User I/O pin |
| پن 56 | GND — Ground |
| پن 57 | I/O — User I/O pin |
| پن 58 | I/O — User I/O pin |
| پن 59 | I/O — User I/O pin |
| پن 60 | I/O — User I/O pin |
| پن 61 | I/O — User I/O pin |
| پن 62 | I/O — User I/O pin |
| پن 63 | I/O — User I/O pin |
| پن 64 | I/O — User I/O pin |
| پن 65 | I/O — User I/O pin |
| پن 66 | I/O — User I/O pin |
| پن 67 | I/O — User I/O pin |
| پن 68 | I/O — User I/O pin |
| پن 69 | I/O — User I/O pin |
| پن 70 | I/O — User I/O pin |
| پن 71 | I/O — User I/O pin |
| پن 72 | VCCIO — Output bank supply (3.3 V or 5.0 V) |
| پن 73 | I/O — User I/O pin |
| پن 74 | I/O — User I/O pin |
| پن 75 | I/O — User I/O pin |
| پن 76 | I/O — User I/O pin |
| پن 77 | I/O — User I/O pin |
| پن 78 | I/O — User I/O pin |
| پن 79 | I/O — User I/O pin |
| پن 80 | I/O — User I/O pin |
| پن 81 | I/O — User I/O pin |
| پن 82 | I/O — User I/O pin |
| پن 83 | I/O — User I/O pin |
| پن 84 | I/O — User I/O pin |
| پن 85 | I/O — User I/O pin |
| پن 86 | I/O — User I/O pin |
| پن 87 | I/O — User I/O pin |
| پن 88 | I/O — User I/O pin |
| پن 89 | GND — Ground |
| پن 90 | I/O — User I/O pin |
| پن 91 | I/O — User I/O pin |
| پن 92 | I/O — User I/O pin |
| پن 93 | I/O — User I/O pin |
| پن 94 | I/O — User I/O pin |
| پن 95 | I/O — User I/O pin |
| پن 96 | I/O — User I/O pin |
| پن 97 | I/O — User I/O pin |
| پن 98 | I/O — User I/O pin |
| پن 99 | I/O — User I/O pin |
| پن 100 | I/O — User I/O pin |
| پن 101 | I/O — User I/O pin |
| پن 102 | I/O — User I/O pin |
| پن 103 | I/O — User I/O pin |
| پن 104 | VCCINT — 5.0 V core supply |
| پن 105 | I/O — User I/O pin |
| پن 106 | I/O — User I/O pin |
| پن 107 | I/O — User I/O pin |
| پن 108 | I/O — User I/O pin |
| پن 109 | I/O — User I/O pin |
| پن 110 | I/O — User I/O pin |
| پن 111 | I/O — User I/O pin |
| پن 112 | GND — Ground |
| پن 113 | I/O — User I/O pin |
| پن 114 | I/O — User I/O pin |
| پن 115 | I/O — User I/O pin |
| پن 116 | I/O — User I/O pin |
| پن 117 | I/O — User I/O pin |
| پن 118 | I/O — User I/O pin |
| پن 119 | I/O — User I/O pin |
| پن 120 | I/O — User I/O pin |
| پن 121 | I/O — User I/O pin |
| پن 122 | I/O — User I/O pin |
| پن 123 | I/O — User I/O pin |
| پن 124 | I/O — User I/O pin |
| پن 125 | I/O — User I/O pin |
| پن 126 | I/O — User I/O pin |
| پن 127 | I/O — User I/O pin |
| پن 128 | I/O — User I/O pin |
| پن 129 | VCCIO — Output bank supply (3.3 V or 5.0 V) |
| پن 130 | I/O — User I/O pin |
| پن 131 | I/O — User I/O pin |
| پن 132 | I/O — User I/O pin |
| پن 133 | I/O — User I/O pin |
| پن 134 | I/O — User I/O pin |
| پن 135 | I/O — User I/O pin |
| پن 136 | I/O — User I/O pin |
| پن 137 | I/O — User I/O pin |
| پن 138 | I/O — User I/O pin |
| پن 139 | I/O — User I/O pin |
| پن 140 | I/O — User I/O pin |
| پن 141 | I/O — User I/O pin |
| پن 142 | I/O — User I/O pin |
| پن 143 | I/O — User I/O pin |
| پن 144 | I/O — User I/O pin |
| پن 145 | GND — Ground |
| پن 146 | I/O — User I/O pin |
| پن 147 | I/O — User I/O pin |
| پن 148 | I/O — User I/O pin |
| پن 149 | I/O — User I/O pin |
| پن 150 | I/O — User I/O pin |
| پن 151 | I/O — User I/O pin |
| پن 152 | I/O — User I/O pin |
| پن 153 | I/O — User I/O pin |
| پن 154 | I/O — User I/O pin |
| پن 155 | I/O — User I/O pin |
| پن 156 | I/O — User I/O pin |
| پن 157 | I/O — User I/O pin |
| پن 158 | I/O — User I/O pin |
| پن 159 | I/O — User I/O pin |
| پن 160 | I/O — User I/O pin |
| پن 161 | VCCINT — 5.0 V core supply |
| پن 162 | I/O — User I/O pin |
| پن 163 | I/O — User I/O pin |
| پن 164 | I/O — User I/O pin |
| پن 165 | I/O — User I/O pin |
| پن 166 | I/O — User I/O pin |
| پن 167 | I/O — User I/O pin |
| پن 168 | GND — Ground |
| پن 169 | I/O — User I/O pin |
| پن 170 | I/O — User I/O pin |
| پن 171 | I/O — User I/O pin |
| پن 172 | I/O — User I/O pin |
| پن 173 | I/O — User I/O pin |
| پن 174 | I/O — User I/O pin |
| پن 175 | I/O — User I/O pin |
| پن 176 | I/O — User I/O pin |
| پن 177 | I/O — User I/O pin |
| پن 178 | I/O — User I/O pin |
| پن 179 | I/O — User I/O pin |
| پن 180 | I/O — User I/O pin |
| پن 181 | I/O — User I/O pin |
| پن 182 | I/O — User I/O pin |
| پن 183 | I/O — User I/O pin |
| پن 184 | I/O — User I/O pin |
| پن 185 | I/O — User I/O pin |
| پن 186 | VCCIO — Output bank supply (3.3 V or 5.0 V) |
| پن 187 | MSEL0 — Configuration mode select 0 |
| پن 188 | MSEL1 — Configuration mode select 1 |
| پن 189 | nCONFIG — Configuration control (active-low) |
| پن 190 | nSTATUS — Configuration status (active-low) |
| پن 191 | CONF_DONE — Configuration done indicator |
| پن 192 | TCK — JTAG test clock |
| پن 193 | TMS — JTAG test mode select |
| پن 194 | TDI — JTAG test data in |
| پن 195 | TDO — JTAG test data out |
| پن 196 | DATA0 — Configuration data input (serial/parallel) |
| پن 197 | DCLK — Configuration clock input |
| پن 198 | nCE — Chip enable (active-low) |
| پن 199 | DEV_CLRn — Device clear (active-low) |
| پن 200 | DEV_OE — Device output enable |
| پن 201 | INIT_DONE — Initialization done indicator |
| پن 202 | CLK1 — Dedicated clock input 1 |
| پن 203 | CLK2 — Dedicated clock input 2 |
| پن 204 | CLK3 — Dedicated clock input 3 |
| پن 205 | IN4 — Dedicated input 4 |
| پن 206 | VCCINT — 5.0 V core supply |
| پن 207 | GND — Ground (exposed pad underside) |
| پن 208 | EPAD — Exposed thermal pad (must be soldered to copper pour) |
عام استعمالات
EPF8820ARC208-2N کے لیے موزوں ہے 7 ایپلیکیشنs: 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.
تجویز کردہ
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.
تجویز کردہ
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.
تجویز کردہ
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.
تجویز کردہ
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.
تجویز کردہ
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.
تجویز کردہ
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.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا EPF8820ARC208-2N — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | 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 |
اہم امتیازی خصوصیات
- Identical die across all temperature and speed suffixes (بمقابلہEPF8820ARC208-2 (commercial temp))
- Higher density than the EPF8636 family (بمقابلہEPF8636ARC208-4 (6K gates / 504 LEs))
- Exposed-pad package enables higher thermal performance (بمقابلہEPF8820AQC208-2N (PQFP without exposed pad))
ڈیزائن نوٹس
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.
تعمیل کی معلومات
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).