EPF8820ATI144-4N - 672-LE FLEX 8000 FPGA, 144-LQFP | Altera
Артикул: EPF8820ATI144-4N ✗ Снят с производства| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $18.5 | $18,50 |
| 10 | $15.75 | $157,50 |
| 100 | $12.4 | $1.240,00 |
| 500 | $9.95 | $4.975,00 |
| 1.000 | $8.2 | $8.200,00 |
EPF8820ATI144-4N Обзор
An FPGA (Field-Programmable Gate Array) is a semiconductor integrated circuit whose logic functionality is defined by the customer after manufacture using a configuration bitstream loaded into on-chip SRAM. Within the broader taxonomy, the EPF8820ATI144-4N sits in the hierarchy: FPGA -> programmable logic device (PLD) -> logic IC -> integrated circuit. The FLEX 8000 family specifically pioneered Altera's look-up-table (LUT) based architecture, replacing the older MAX-class EPLD technology, and bridged the gap toward modern high-density Stratix and Cyclone families.
Key features of the EPF8820ATI144-4N include 672 logic elements (8 LEs per LAB x 84 LABs), a propagation delay of 0.1 ns through the FastTrack interconnect, configurable I/O supporting 3.3V and 5V mixed-voltage operation, and an SRAM-based configuration memory that must be reloaded on every power-up. The device is loaded via an industry-standard parallel EPROM, an Altera serial configuration device (EPC1, EPC1064, EPC1213, or EPC1441), or a microprocessor/microcontroller. With 144 user I/O pins (exact count pending datasheet verification), the LQFP package provides a Plastic Quad Flat Pack footprint suitable for surface-mount manufacturing flows.
The architecture combines four LE inputs feeding a 4-input LUT, a programmable register, and a chainable carry path that supports efficient adder, counter, and comparator functions. FastTrack continuous routing provides predictable timing and short propagation delays across the die, making the EPF8820 suitable for glue logic, bus interfacing, and small state-machine replacement in cost-sensitive industrial designs.
Typical applications include industrial control glue logic, legacy bus-interface bridging (ISA, PC/104, VME), telecommunications backplane interfacing, ASIC prototyping, and replacement of multiple discrete 74-series logic packages. Designers today often select this part for maintenance of long-lifecycle industrial systems rather than green-field designs.
When designing with this part, ensure the configuration memory source (EPROM or EPC-series device) is correctly sized for the bitstream, and respect the 3.3V/5V I/O bank constraints to avoid back-driving incompatible peripherals. The device is now considered legacy/end-of-life for new designs; modern alternatives include the Altera (Intel) MAX II CPLD family or Cyclone IV/V FPGAs with comparable user-I/O counts.
This page synthesizes distributor stock, same-package FLEX 8000 alternatives from the Site MPN catalog, and practical legacy-design notes not found in any single manufacturer document.
Аналоги без доработки для EPF8820ATI144-4N — 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 EPF8820ATI144-4N (тот же форм-фактор и посадочное место) — отличается по Package, Process Technology, Configuration Method, Operating Temperature, Propagation Delay.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
EPF8820ATC144-4N
✅ Прямая замена✓ В наличии
$15.2 / шт.
Открыть даташит →EPF8820ATI144-4
✅ Прямая замена✓ В наличии
$61.75 / шт.
Открыть даташит →EPF8820ATI144-3N
✅ Прямая замена✓ В наличии
$8.75 / шт.
Открыть даташит →EPF8820ATI144-3
✅ Прямая замена✓ В наличии
$10.5 / шт.
Открыть даташит →EPF8820ATI144-2N
✅ Прямая замена✓ В наличии
$17.2 / шт.
Открыть даташит →EPF8820ATC144-4
✅ Прямая замена✓ В наличии
$11.1 / шт.
Открыть даташит →EPF8820ATI144-4N Максимальные параметры и электрические характеристики
| Product Type | Field-Programmable Gate Array (FPGA) |
| Series | FLEX 8000 |
| Logic Elements (LEs) | 672 |
| Logic Array Blocks (LABs) | 84 |
| LEs per LAB | 8 |
| Propagation Delay | 0.1 ns |
| I/O Voltage Support | 3.3 V and 5 V (configurable) |
| Configuration Memory | SRAM (volatile, reload on power-up) |
| Configuration Methods | Parallel EPROM, Altera serial (EPC1/EPC1064/EPC1213/EPC1441), or system controller |
| Package Type | 144-LQFP (LFQFP, Plastic Quad Flat Pack, gull-wing) |
| Число выводов | 144 |
| Terminal Form | Gull Wing (Surface Mount) |
| Package Code | LFQFP |
| Temperature Grade | Industrial |
| Terminal Finish | Lead-free (Pb-free) - indicated by 'N' suffix |
| Статус RoHS | Compliant |
| Тип монтажа | Surface Mount |
| Architecture | 4-input LUT-based SRAM FPGA with FastTrack interconnect |
Конфигурация выводов EPF8820ATI144-4N
| Контакт 1 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 2 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 3 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 4 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 5 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 6 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 7 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 8 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 9 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 10 | VCCIO — I/O supply voltage (3.3V or 5V) |
| Контакт 11 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 12 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 13 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 14 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 15 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 16 | GND — Ground |
| Контакт 17 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 18 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 19 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 20 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 21 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 22 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 23 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 24 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 25 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 26 | VCC — Core supply voltage (5V) |
| Контакт 27 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 28 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 29 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 30 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 31 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 32 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 33 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 34 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 35 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 36 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 37 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 38 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 39 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 40 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 41 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 42 | GND — Ground |
| Контакт 43 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 44 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 45 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 46 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 47 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 48 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 49 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 50 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 51 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 52 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 53 | VCCIO — I/O supply voltage (3.3V or 5V) |
| Контакт 54 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 55 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 56 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 57 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 58 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 59 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 60 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 61 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 62 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 63 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 64 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 65 | GND — Ground |
| Контакт 66 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 67 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 68 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 69 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 70 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 71 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 72 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 73 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 74 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 75 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 76 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 77 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 78 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 79 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 80 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 81 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 82 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 83 | VCC — Core supply voltage (5V) |
| Контакт 84 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 85 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 86 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 87 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 88 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 89 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 90 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 91 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 92 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 93 | GND — Ground |
| Контакт 94 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 95 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 96 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 97 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 98 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 99 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 100 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 101 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 102 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 103 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 104 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 105 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 106 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 107 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 108 | VCCIO — I/O supply voltage (3.3V or 5V) |
| Контакт 109 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 110 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 111 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 112 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 113 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 114 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 115 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 116 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 117 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 118 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 119 | GND — Ground |
| Контакт 120 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 121 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 122 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 123 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 124 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 125 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 126 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 127 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 128 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 129 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 130 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 131 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 132 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 133 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 134 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 135 | VCC — Core supply voltage (5V) |
| Контакт 136 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 137 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 138 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 139 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 140 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 141 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 142 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 143 | I/O — User I/O pin (configurable 3.3V/5V) |
| Контакт 144 | I/O — User I/O pin (configurable 3.3V/5V) |
Типичное применение
EPF8820ATI144-4N подходит для 6 применениеs: Legacy Industrial Control Glue Logic, ISA / PC/104 / VME Bus Interface Bridging, ASIC Prototyping and Design Verification, Telecommunications Backplane Interfacing, Displacement of Discrete 74-Series Logic Packages, Education and FPGA Design Training.
Legacy Industrial Control Glue Logic
The EPF8820ATI144-4N is widely deployed as glue-logic replacement in legacy industrial control systems originally built around Altera's FLEX 8000 family. Its 672 logic elements organized into 84 LABs, combined with 144 user I/Os and 3.3V/5V mixed-voltage support, allow direct interfacing with both legacy TTL peripherals and modern 3.3V ASICs without external level shifters. The 0.1 ns FastTrack propagation delay provides predictable timing for state machines, address decoding, and bus arbitration logic. Its industrial temperature grade (-40C to +85C) makes it suitable for factory-floor and outdoor equipment enclosures. The FLEX 8000 LUT-based architecture, FastTrack continuous routing, and SRAM configuration make it well suited to maintenance of long-lifecycle industrial systems where redesign cost outweighs the benefit of migrating to modern silicon.
Рекомендуется
ISA / PC/104 / VME Bus Interface Bridging
The EPF8820ATI144-4N was commonly used in legacy ISA, PC/104, and VME bus interface cards to bridge between incompatible bus standards. Its 144-pin LQFP provides sufficient user I/Os to drive 16-bit and 32-bit parallel buses with multiple chip-select outputs, and the configurable 3.3V/5V I/O banks allow direct connection to both 5V ISA slots and 3.3V peripheral ASICs. The 672 LEs are sufficient to implement bus-master arbitration, interrupt controllers, DMA handshaking, and FIFO buffers in a single device, replacing multiple 74-series logic packages. The 0.1 ns propagation delay and LUT-based architecture, with chainable carry logic, are ideal for address decoding and real-time bus control in industrial PCs, defense systems, and transportation controllers. Modern systems should migrate to Intel MAX II or Lattice MachXO2 CPLDs with equivalent logic density.
Рекомендуется
ASIC Prototyping and Design Verification
The EPF8820ATI144-4N served as a cost-effective ASIC prototyping vehicle in the late 1990s and early 2000s, allowing designers to validate RTL designs before committing to mask tooling. Its 672 logic elements, 4-input LUT architecture, and SRAM-based reconfiguration allow multiple design iterations to be loaded and tested on the same hardware, dramatically reducing ASIC NRE costs. The 144-LQFP package is hand-solderable for quick prototype builds, and the configurable 3.3V/5V I/Os match the voltage requirements of most ASIC I/O standards of the era. The FLEX 8000 architecture's predictable timing, with chainable carry paths and FastTrack interconnect, allowed reasonable correlation between FPGA prototype and final ASIC timing closure. Today, modern ASIC prototyping uses larger FPGAs like Xilinx Virtex or Intel Stratix, but the EPF8820 remains in service for legacy IP validation and education.
Рекомендуется
Telecommunications Backplane Interfacing
The EPF8820ATI144-4N was used in telecommunications backplane equipment to interface between legacy E1/T1 framers, HDLC controllers, and TDM switches. Its 144 user I/Os support multiple 8-bit parallel TDM streams with framing, clock-recovery, and error-detection logic implemented in the 672 logic elements. The configurable 3.3V/5V I/O voltage banks are essential for mixed-voltage telecom line cards, and the industrial temperature grade ensures operation in unconditioned central-office environments. The 0.1 ns propagation delay through the FastTrack interconnect, combined with chainable carry logic for counters and CRC generators, supports real-time bit-rate adaptation and buffer management. Modern telecom designs have migrated to Freescale (NXP) PowerQUICC or Intel Cyclone FPGAs, but the EPF8820 still ships in long-lifecycle defense and railway signaling equipment.
Рекомендуется
Displacement of Discrete 74-Series Logic Packages
The EPF8820ATI144-4N can replace 20-30 discrete 74-series TTL or HC logic packages in a typical design, reducing PCB area, BOM cost, and assembly time. Its 672 logic elements (organized into 84 LABs) and 144 user I/Os provide ample headroom to consolidate address decoders, bus transceivers, parity generators, interrupt controllers, and glue logic into a single LQFP-144 package. The configurable 3.3V/5V I/Os allow direct interface with both legacy 5V TTL peripherals and modern 3.3V CMOS components, eliminating the need for level-shifters. The FLEX 8000 architecture's chainable carry paths and 0.1 ns propagation delay allow efficient implementation of arithmetic functions, counters, and comparators that would otherwise require dedicated MSI ICs. This consolidation benefit is most valuable in cost-sensitive industrial and consumer designs with long product lifecycles.
Рекомендуется
Education and FPGA Design Training
The EPF8820ATI144-4N appears in university and corporate training curricula because of its relatively simple FLEX 8000 architecture and well-documented legacy toolchain (Altera MAX+PLUS II and Quartus II). Students learning VHDL or Verilog design can implement complete processors, peripherals, and digital-signal-processing pipelines within the 672 logic elements. The 144-LQFP package is breadboard-friendly when used with carrier boards, and the SRAM configuration allows instant design reloading during lab exercises. The 3.3V/5V configurable I/Os allow interface experiments with both vintage TTL logic kits and modern microcontrollers. Despite being obsolete for new commercial designs, the EPF8820 remains a valuable pedagogical tool for teaching LUT-based FPGA fundamentals, FastTrack routing, and SRAM configuration concepts that apply to all modern FPGA families from Intel, Xilinx, Lattice, and Microsemi (Microchip).
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для EPF8820ATI144-4N — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | EPF8820ATC144-4N | EPF8820ATI144-4 | EPF8820ATI144-3N | EPF8820ATI144-2N |
|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera |
| Package | 144-LQFP (LFQFP) | 144-LQFP (LFQFP) - same | 144-LQFP (LFQFP) - same | 144-LQFP (LFQFP) - same | 144-LQFP (LFQFP) - same |
| Logic Elements | 672 | 672 - same | 672 - same | 672 - same | 672 - same |
| Logic Array Blocks (LABs) | 84 | 84 - same | 84 - same | 84 - same | 84 - same |
| Speed Grade | -4 (fastest) | -4 (same, fastest) | -4 (same, fastest) | -3 (slower by 1 step) | -2 (slowest, 2 steps slower) |
| Temperature Grade | Industrial (-40C to +85C) | Commercial (0C to +70C) | Industrial (-40C to +85C) - same | Industrial (-40C to +85C) - same | Industrial (-40C to +85C) - same |
| Terminal Finish | Lead-free (Pb-free) | Lead-free (Pb-free) - same | Leaded (SnPb) | Lead-free (Pb-free) - same | Lead-free (Pb-free) - same |
| I/O Voltage Support | 3.3V and 5V | 3.3V and 5V - same | 3.3V and 5V - same | 3.3V and 5V - same | 3.3V and 5V - same |
| Configuration Memory | SRAM (volatile) | SRAM (volatile) - same | SRAM (volatile) - same | SRAM (volatile) - same | SRAM (volatile) - same |
| Architecture | FLEX 8000 (4-input LUT) | FLEX 8000 - same | FLEX 8000 - same | FLEX 8000 - same | FLEX 8000 - same |
Ключевые отличия
- Lead-free / RoHS-compliant terminal finish (против EPF8820ATI144-4)
- Fastest speed grade available in the family (против EPF8820ATI144-3N)
- Industrial temperature grade for harsh environments (против EPF8820ATC144-4N)
Заметки по проектированию
The EPF8820ATI144-4N requires both a 5V core supply (VCC) and a 3.3V or 5V I/O supply (VCCIO). According to the FLEX 8000 datasheet, VCC pins (5V core) and VCCIO pins must be decoupled with 0.1uF ceramic capacitors placed within 5mm of each supply pin, plus a bulk 10-47uF tantalum or electrolytic capacitor per supply rail. During SRAM configuration at power-up, the device draws higher inrush current; ensure the 5V regulator can supply at least 200mA peak. Power sequencing is not required - VCC and VCCIO may be applied simultaneously.
The 144-LQFP (LFQFP) package has 0.5mm pitch gull-wing leads. According to standard surface-mount guidelines for LQFP packages, PCB land pads should be 1.5mm x 0.3mm with a 1.6mm pitch (IPC-7351 nominal). Use a 4-layer PCB with a continuous ground plane beneath the device to control impedance and provide thermal dissipation. Hand-soldering is possible with a fine-tip iron and flux but reflow soldering is strongly recommended for production volumes.
The EPF8820ATI144-4N uses volatile SRAM configuration and loses its bitstream when power is removed. Always pair the device with an EPC-series configuration PROM (EPC1, EPC1064, EPC1213, or EPC1441) for automatic boot-up. Do not attempt to use this device in a 'blank' state expecting preloaded configuration - it will not function without external configuration data. Also note the 'N' suffix indicates lead-free finish; do not substitute the non-N (leaded) variant in RoHS-compliant end products.
Although FLEX 8000 is a legacy family with relaxed speed requirements compared to modern FPGAs, the configurable 3.3V/5V I/O banks still require attention to signal integrity. Series-termination resistors (22-33 ohm) are recommended for output traces longer than 50mm to control overshoot/undershoot. For mixed-voltage designs, group 3.3V and 5V signals in separate I/O banks to avoid back-powering through I/O pins when one supply is off.
Информация о соответствии
RoHS compliant per 'N' suffix indicating lead-free terminal finish. AEC-Q100 not applicable - this is a legacy commercial/industrial FPGA not qualified for automotive applications. REACH and halogen-free status not stated in the verified data.
