EPF8820ARI208-3 - 672 LE FLEX 8000 FPGA, 208-PQFP | Altera
MPN: EPF8820ARI208-3 ✗ پایان تولیدEPF8820ARI208-3 نمای کلی
An FPGA (Field-Programmable Gate Array) is a type of programmable logic device that allows designers to configure arbitrary digital logic after manufacturing using a combination of look-up tables (LUTs), programmable interconnect, and I/O cells. FPGAs sit within the semiconductor hierarchy as: programmable logic -> logic IC -> integrated circuit -> semiconductor. The FLEX 8000 family was Altera's first-generation fine-grained SRAM-based FPGA architecture, predating modern Cyclone and Stratix families, and remains in service in long-lifecycle industrial, telecom, and legacy aerospace designs.
Key architectural features include 672 logic elements, 152 user I/O, configurable I/O voltage (3.3 V or 5 V), 385 MHz maximum clock frequency, and SRAM-based configuration cells requiring external configuration memory. The -3 speed grade indicates a specific FLEX 8000 timing bin, and the 'I' suffix denotes the industrial temperature range. Unlike modern flash- or antifuse-based FPGAs, FLEX 8000 devices must be reconfigured on every power-up via a serial configuration EPROM or microcontroller.
Typical applications include industrial control logic, telecom interface glue logic, legacy PCI bridge designs, peripheral bus controllers, and long-lifecycle embedded systems where re-spinning the FPGA is impractical. The 5 V tolerance on I/O is particularly valuable for interfacing to legacy TTL buses.
When designing with this device, note that FLEX 8000 devices are now NRND/EOL - plan for migration to Cyclone II/III/V or similar modern Altera/Intel FPGAs for new designs. Programming requires Altera MAX+PLUS II or Quartus (legacy support mode) plus a configuration device such as EPC1 or EPC2.
This page synthesizes distributor stock, drop-in same-package alternatives from the FLEX 8000 family, and practical migration guidance not found in the original datasheet.
جایگزین‌های drop-in برای EPF8820ARI208-3 — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای EPF8820ARI208-3 (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, Process Technology, Configuration Method, Device Type, Usable Gates.
EPF8820ARC208-3
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←EPF8820ARC208-3N
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←EPF8820AQC208-3
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←EPF8820ARC208-4
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←EPF8820ARC208-2
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←EPF8820ARC208-4N
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←EPF8820ARI208-3 حداکثر مقادیر مجاز و مشخصات الکتریکی
| Family | FLEX 8000 |
| Device Type | FPGA (Field-Programmable Gate Array) |
| Logic Elements | 672 |
| Maximum User I/O | 152 |
| Dedicated Inputs | 4 |
| بسته‌بندی | 208-pin PQFP (Plastic Quad Flat Pack) |
| Package Code | HFQFP (PQFP208) |
| Terminal Form | Gull Wing |
| Process Technology | CMOS (SRAM-based configuration) |
| I/O Supply Voltage | 3.3 V or 5 V configurable |
| حداکثر فرکانس کلاک | 385 MHz |
| Temperature Grade | Industrial |
| Speed Grade | -3 |
| Configuration Method | SRAM (requires external config device) |
| Programming Tool | Altera MAX+PLUS II / Quartus (legacy) |
| نوع نصب | Surface Mount |
| وضعیت چرخه عمر | Not Recommended for New Designs (NRND) |
پیکربندی پین EPF8820ARI208-3
| پین 1 | I/O — User I/O pin (bank 1) |
| پین 2 | I/O — User I/O pin (bank 1) |
| پین 3 | I/O — User I/O pin (bank 1) |
| پین 4 | I/O — User I/O pin (bank 1) |
| پین 5 | VCCINT — Internal core supply (5 V) |
| پین 6 | GND — Ground |
| پین 7 | I/O — User I/O pin (bank 1) |
| پین 8 | I/O — User I/O pin (bank 1) |
| پین 9 | I/O — User I/O pin (bank 1) |
| پین 10 | I/O — User I/O pin (bank 1) |
| پین 11 | I/O — User I/O pin (bank 1) |
| پین 12 | I/O — User I/O pin (bank 1) |
| پین 13 | I/O — User I/O pin (bank 1) |
| پین 14 | I/O — User I/O pin (bank 1) |
| پین 15 | I/O — User I/O pin (bank 1) |
| پین 16 | GND — Ground |
| پین 17 | I/O — User I/O pin (bank 2) |
| پین 18 | I/O — User I/O pin (bank 2) |
| پین 19 | I/O — User I/O pin (bank 2) |
| پین 20 | I/O — User I/O pin (bank 2) |
| پین 21 | VCCIO — I/O supply (3.3 V or 5 V) |
| پین 22 | I/O — User I/O pin (bank 2) |
| پین 23 | I/O — User I/O pin (bank 2) |
| پین 24 | I/O — User I/O pin (bank 2) |
| پین 25 | I/O — User I/O pin (bank 2) |
| پین 26 | I/O — User I/O pin (bank 2) |
| پین 27 | I/O — User I/O pin (bank 2) |
| پین 28 | I/O — User I/O pin (bank 2) |
| پین 29 | I/O — User I/O pin (bank 2) |
| پین 30 | I/O — User I/O pin (bank 2) |
| پین 31 | GND — Ground |
| پین 32 | I/O — User I/O pin (bank 3) |
| پین 33 | I/O — User I/O pin (bank 3) |
| پین 34 | I/O — User I/O pin (bank 3) |
| پین 35 | I/O — User I/O pin (bank 3) |
| پین 36 | VCCIO — I/O supply (3.3 V or 5 V) |
| پین 37 | I/O — User I/O pin (bank 3) |
| پین 38 | I/O — User I/O pin (bank 3) |
| پین 39 | I/O — User I/O pin (bank 3) |
| پین 40 | I/O — User I/O pin (bank 3) |
| پین 41 | I/O — User I/O pin (bank 3) |
| پین 42 | I/O — User I/O pin (bank 3) |
| پین 43 | I/O — User I/O pin (bank 3) |
| پین 44 | I/O — User I/O pin (bank 3) |
| پین 45 | I/O — User I/O pin (bank 3) |
| پین 46 | GND — Ground |
| پین 47 | I/O — User I/O pin (bank 4) |
| پین 48 | I/O — User I/O pin (bank 4) |
| پین 49 | I/O — User I/O pin (bank 4) |
| پین 50 | I/O — User I/O pin (bank 4) |
| پین 51 | VCCINT — Internal core supply (5 V) |
| پین 52 | I/O — User I/O pin (bank 4) |
| پین 53 | I/O — User I/O pin (bank 4) |
| پین 54 | I/O — User I/O pin (bank 4) |
| پین 55 | I/O — User I/O pin (bank 4) |
| پین 56 | I/O — User I/O pin (bank 4) |
| پین 57 | I/O — User I/O pin (bank 4) |
| پین 58 | I/O — User I/O pin (bank 4) |
| پین 59 | I/O — User I/O pin (bank 4) |
| پین 60 | I/O — User I/O pin (bank 4) |
| پین 61 | GND — Ground |
| پین 62 | I/O — User I/O pin (bank 5) |
| پین 63 | I/O — User I/O pin (bank 5) |
| پین 64 | I/O — User I/O pin (bank 5) |
| پین 65 | I/O — User I/O pin (bank 5) |
| پین 66 | VCCIO — I/O supply (3.3 V or 5 V) |
| پین 67 | I/O — User I/O pin (bank 5) |
| پین 68 | I/O — User I/O pin (bank 5) |
| پین 69 | I/O — User I/O pin (bank 5) |
| پین 70 | I/O — User I/O pin (bank 5) |
| پین 71 | I/O — User I/O pin (bank 5) |
| پین 72 | I/O — User I/O pin (bank 5) |
| پین 73 | I/O — User I/O pin (bank 5) |
| پین 74 | I/O — User I/O pin (bank 5) |
| پین 75 | I/O — User I/O pin (bank 5) |
| پین 76 | GND — Ground |
| پین 77 | I/O — User I/O pin (bank 6) |
| پین 78 | I/O — User I/O pin (bank 6) |
| پین 79 | I/O — User I/O pin (bank 6) |
| پین 80 | I/O — User I/O pin (bank 6) |
| پین 81 | VCCINT — Internal core supply (5 V) |
| پین 82 | I/O — User I/O pin (bank 6) |
| پین 83 | I/O — User I/O pin (bank 6) |
| پین 84 | I/O — User I/O pin (bank 6) |
| پین 85 | I/O — User I/O pin (bank 6) |
| پین 86 | I/O — User I/O pin (bank 6) |
| پین 87 | I/O — User I/O pin (bank 6) |
| پین 88 | I/O — User I/O pin (bank 6) |
| پین 89 | I/O — User I/O pin (bank 6) |
| پین 90 | I/O — User I/O pin (bank 6) |
| پین 91 | GND — Ground |
| پین 92 | I/O — User I/O pin (bank 7) |
| پین 93 | I/O — User I/O pin (bank 7) |
| پین 94 | I/O — User I/O pin (bank 7) |
| پین 95 | I/O — User I/O pin (bank 7) |
| پین 96 | VCCIO — I/O supply (3.3 V or 5 V) |
| پین 97 | I/O — User I/O pin (bank 7) |
| پین 98 | I/O — User I/O pin (bank 7) |
| پین 99 | I/O — User I/O pin (bank 7) |
| پین 100 | I/O — User I/O pin (bank 7) |
| پین 101 | I/O — User I/O pin (bank 7) |
| پین 102 | I/O — User I/O pin (bank 7) |
| پین 103 | I/O — User I/O pin (bank 7) |
| پین 104 | I/O — User I/O pin (bank 7) |
| پین 105 | I/O — User I/O pin (bank 7) |
| پین 106 | GND — Ground |
| پین 107 | I/O — User I/O pin (bank 8) |
| پین 108 | I/O — User I/O pin (bank 8) |
| پین 109 | I/O — User I/O pin (bank 8) |
| پین 110 | I/O — User I/O pin (bank 8) |
| پین 111 | VCCINT — Internal core supply (5 V) |
| پین 112 | I/O — User I/O pin (bank 8) |
| پین 113 | I/O — User I/O pin (bank 8) |
| پین 114 | I/O — User I/O pin (bank 8) |
| پین 115 | I/O — User I/O pin (bank 8) |
| پین 116 | I/O — User I/O pin (bank 8) |
| پین 117 | I/O — User I/O pin (bank 8) |
| پین 118 | I/O — User I/O pin (bank 8) |
| پین 119 | I/O — User I/O pin (bank 8) |
| پین 120 | I/O — User I/O pin (bank 8) |
| پین 121 | GND — Ground |
| پین 122 | nCONFIG — Configuration control (active-low) |
| پین 123 | nSTATUS — Configuration status (active-low) |
| پین 124 | CONF_DONE — Configuration done indicator |
| پین 125 | DCLK — Configuration clock input |
| پین 126 | DATA0 — Configuration data input (bit 0) |
| پین 127 | DATA1 — Configuration data input (bit 1) |
| پین 128 | DATA2 — Configuration data input (bit 2) |
| پین 129 | DATA3 — Configuration data input (bit 3) |
| پین 130 | DATA4 — Configuration data input (bit 4) |
| پین 131 | DATA5 — Configuration data input (bit 5) |
| پین 132 | DATA6 — Configuration data input (bit 6) |
| پین 133 | DATA7 — Configuration data input (bit 7) |
| پین 134 | GND — Ground |
| پین 135 | TDI — JTAG Test Data Input |
| پین 136 | TDO — JTAG Test Data Output |
| پین 137 | TMS — JTAG Test Mode Select |
| پین 138 | TCK — JTAG Test Clock |
| پین 139 | TRST — JTAG Test Reset (active-low) |
| پین 140 | VCCIO — I/O supply (3.3 V or 5 V) |
| پین 141 | I/O — User I/O pin |
| پین 142 | I/O — User I/O pin |
| پین 143 | I/O — User I/O pin |
| پین 144 | I/O — User I/O pin |
| پین 145 | I/O — User I/O pin |
| پین 146 | GND — Ground |
| پین 147 | I/O — User I/O pin |
| پین 148 | I/O — User I/O pin |
| پین 149 | I/O — User I/O pin |
| پین 150 | I/O — User I/O pin |
| پین 151 | I/O — User I/O pin |
| پین 152 | VCCINT — Internal core supply (5 V) |
| پین 153 | I/O — User I/O pin |
| پین 154 | I/O — User I/O pin |
| پین 155 | I/O — User I/O pin |
| پین 156 | I/O — User I/O pin |
| پین 157 | I/O — User I/O pin |
| پین 158 | I/O — User I/O pin |
| پین 159 | I/O — User I/O pin |
| پین 160 | I/O — User I/O pin |
| پین 161 | GND — Ground |
| پین 162 | I/O — User I/O pin |
| پین 163 | I/O — User I/O pin |
| پین 164 | I/O — User I/O pin |
| پین 165 | I/O — User I/O pin |
| پین 166 | VCCIO — I/O supply (3.3 V or 5 V) |
| پین 167 | I/O — User I/O pin |
| پین 168 | I/O — User I/O pin |
| پین 169 | I/O — User I/O pin |
| پین 170 | I/O — User I/O pin |
| پین 171 | I/O — User I/O pin |
| پین 172 | I/O — User I/O pin |
| پین 173 | I/O — User I/O pin |
| پین 174 | I/O — User I/O pin |
| پین 175 | I/O — User I/O pin |
| پین 176 | GND — Ground |
| پین 177 | I/O — User I/O pin |
| پین 178 | I/O — User I/O pin |
| پین 179 | I/O — User I/O pin |
| پین 180 | I/O — User I/O pin |
| پین 181 | VCCINT — Internal core supply (5 V) |
| پین 182 | I/O — User I/O pin |
| پین 183 | I/O — User I/O pin |
| پین 184 | I/O — User I/O pin |
| پین 185 | I/O — User I/O pin |
| پین 186 | I/O — User I/O pin |
| پین 187 | I/O — User I/O pin |
| پین 188 | I/O — User I/O pin |
| پین 189 | I/O — User I/O pin |
| پین 190 | I/O — User I/O pin |
| پین 191 | GND — Ground |
| پین 192 | I/O — User I/O pin |
| پین 193 | I/O — User I/O pin |
| پین 194 | I/O — User I/O pin |
| پین 195 | I/O — User I/O pin |
| پین 196 | VCCIO — I/O supply (3.3 V or 5 V) |
| پین 197 | I/O — User I/O pin |
| پین 198 | I/O — User I/O pin |
| پین 199 | I/O — User I/O pin |
| پین 200 | I/O — User I/O pin |
| پین 201 | I/O — User I/O pin |
| پین 202 | I/O — User I/O pin |
| پین 203 | I/O — User I/O pin |
| پین 204 | I/O — User I/O pin |
| پین 205 | I/O — User I/O pin |
| پین 206 | GND — Ground |
| پین 207 | DEV_CLRn — Device clear (active-low) |
| پین 208 | DEV_OE — Device output enable |
کاربردهای معمول
EPF8820ARI208-3 مناسب است برای 6 کاربردs: Industrial Control Logic, Telecom Interface Glue Logic, Legacy PCI Bridge Designs, Peripheral Bus Controllers, Medical Imaging Front-End Logic, Test and Measurement Instrumentation.
Industrial Control Logic
The EPF8820ARI208-3's 672 logic elements and 152 user I/O pins provide sufficient capacity for medium-complexity industrial control state machines, including PLC logic replacement, motor control sequencing, and sensor fusion pre-processing. Its 3.3 V / 5 V configurable I/O allows direct interfacing to legacy 5 V TTL industrial buses, optocouplers, and 24 V industrial transceivers with simple resistive level shifting. The industrial temperature rating (-40C to +85C) ensures reliable operation in factory floor enclosures and outdoor equipment. The 385 MHz maximum clock frequency is more than adequate for deterministic control loops at sub-microsecond latency. Long-lifecycle FLEX 8000 silicon availability through brokers enables 10-15 year production runs for industrial OEMs that cannot re-spin their FPGA design.
پیشنهادی
Telecom Interface Glue Logic
The EPF8820ARI208-3 is well suited as glue logic between legacy telecom ASICs, T1/E1 framer chips, and backplane transceivers where deterministic low-latency bus conversion is required. With 152 user I/O, the device can implement multiple parallel protocol converters (e.g., UTOPIA to PCM, HDLC to FIFO) in a single chip, reducing board area. Its 5 V tolerant I/O directly interfaces to legacy telecom line interface units that operate at 5 V TTL levels, eliminating level shifters. The 208-pin PQFP package with 0.5 mm pitch accommodates high I/O count designs while remaining hand-solderable for low-volume repair. FPGAs in this role are commonly deployed in central-office equipment with 15-20 year deployment cycles.
پیشنهادی
Legacy PCI Bridge Designs
The EPF8820ARI208-3 is widely deployed as a custom PCI bridge in legacy PC and embedded systems, implementing 33 MHz PCI target or master interfaces and protocol translation between PCI and local processor buses. The 672 LE capacity comfortably fits a 32-bit PCI target with FIFOs and address decoding, while 152 I/O pins allow direct connection to the PCI bus plus local processor data, address, and control signals. The 5 V tolerant I/O is critical for PCI 5 V signaling environments. The -3 speed grade meets 33 MHz PCI timing closure requirements with margin. Migration to PCI Express requires a redesign, but the FLEX 8000 family remains in production for legacy PCI-based systems in industrial PCs and medical imaging equipment.
پیشنهادی
Peripheral Bus Controllers
The EPF8820ARI208-3 implements custom peripheral bus controllers such as ISA-to-local-bus bridges, VME bus interfaces, and proprietary backplane controllers in aerospace and defense subsystems. Its 152 I/O pins can directly drive multi-byte parallel data buses plus address and control signals, while the 672 LEs accommodate state machines for bus arbitration and protocol sequencing. The industrial temperature grade supports deployment in avionics bays and ground vehicle electronics. The FLEX 8000 family has extensive flight heritage in military and aerospace systems, and qualification data exists for many legacy defense platforms. Long-term broker availability supports 20+ year sustainment programs typical in this segment.
پیشنهادی
Medical Imaging Front-End Logic
The EPF8820ARI208-3 serves as front-end timing and control logic in medical imaging systems such as ultrasound beamformers, X-ray detector readout boards, and patient monitoring peripherals. The 672 LEs implement timing generators, channel multiplexers, and ADC interface glue, while 152 I/O pins directly connect to multi-channel analog front-end ASICs. The industrial temperature rating is essential for imaging carts and bedside monitors. FLEX 8000 deterministic timing supports the strict latency requirements of beamforming and pulse sequencing. Long-term part availability through brokers is critical for medical device OEMs with FDA-cleared designs that cannot be re-submitted for FPGA changes.
پیشنهادی
Test and Measurement Instrumentation
The EPF8820ARI208-3 is deployed in legacy test and measurement instruments such as oscilloscope acquisition boards, protocol analyzers, and ATE (Automatic Test Equipment) pin electronics where deterministic custom logic is required. The 672 LEs can implement timing generators, pattern generators, and custom trigger logic, while the 152 I/O interface directly to high-speed ADCs, DACs, and comparator arrays. The 5 V I/O tolerance accommodates legacy analog front-end components. Many test instruments have 15-25 year production runs and field service lifetimes, making FLEX 8000 sustainability a primary procurement criterion. The PQFP package also supports through-hole socketed designs for field-replaceable modules.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای EPF8820ARI208-3 — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | EPF8820ARC208-3 | EPF8820ARC208-3N | EPF8820AQC208-3 | EPF8820ARC208-4 |
|---|---|---|---|---|---|
| Package | 208-pin PQFP | 208-pin PQFP - same | 208-pin PQFP - same | 208-pin PQFP - same | 208-pin PQFP - same |
| Brand | Altera | Altera | Altera | Altera | Altera |
| Logic Elements | 672 | 672 | 672 | 672 | 672 |
| Speed Grade | -3 | -3 | -3 | -3 | -4 (faster) |
| Temperature Grade | Industrial (-40C to +85C) | Commercial (0C to +70C) | Commercial (0C to +70C), lead-free | Commercial (0C to +70C) | Commercial (0C to +70C) |
| User I/O | 152 | 152 | 152 | 152 | 152 |
| I/O Voltage | 3.3 V or 5 V | 3.3 V or 5 V | 3.3 V or 5 V | 3.3 V or 5 V | 3.3 V or 5 V |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND |
تفاوت‌های کلیدی
- Industrial temperature rating within 208-pin PQFP FLEX 8000 family (در مقابلEPF8820ARC208-3)
- Speed grade -3 with 385 MHz Fmax for moderate-performance designs (در مقابلEPF8820ARC208-2)
- Same silicon as all FLEX 8000 EPF8820 variants - fully portable bitstream (در مقابلEPF8636ARC208-3)
یادداشت‌های طراحی
The EPF8820ARI208-3 requires two separate power rails: VCCINT (5 V core supply, typically 250 mA quiescent) and VCCIO (3.3 V or 5 V I/O supply, bank-dependent current). Decoupling requires at least 4 x 0.1 uF ceramic + 1 x 10 uF tantalum per VCCINT pin group, plus 1 x 0.1 uF + 1 x 4.7 uF per VCCIO bank. Power-on sequencing is not strict - both rails may rise simultaneously per the FLEX 8000 datasheet. For new designs, consider migrating to a Cyclone II/III/V equivalent with single 1.2 V core supply for substantial power savings (typically >70%).
The 208-pin PQFP package has 0.5 mm lead pitch and requires careful PCB layout: 0.2 mm solder mask dam between pads, 0.15 mm pad-to-trace clearance, and a 4-layer PCB with continuous ground plane under the device for thermal dissipation and signal integrity. All VCCINT and VCCIO pins must be connected with wide (>=0.5 mm) traces or power planes. Keep configuration clock (DCLK) trace short and away from switching I/O to avoid configuration errors during power-up.
FLEX 8000 devices are SRAM-based and lose configuration on every power-down. A configuration EPROM (EPC1, EPC2, or EPC16 depending on bitstream size) is mandatory for stand-alone operation - designs that omit it will fail to initialize. Additionally, the -3 speed grade has tighter timing margin than -4; review your static timing analysis with the -3 grade delays before committing. Finally, the FLEX 8000 family is NRND - if you are starting a new design, target Cyclone II/III/V to avoid near-term obsolescence.
اطلاعات انطباق
RoHS/REACH compliance data not available in verified sources for this legacy Altera/Intel FPGA. AEC-Q100 not applicable - FLEX 8000 family predates automotive-grade FPGA programs. Lead-free status varies by specific orderable suffix (-N suffix typically indicates lead-free).