EPF8820ARC208-24 - FLEX 8000 FPGA, 8K Gates, 672 Cells, 208-RQFP | Altera
Артикул: EPF8820ARC208-24 ✗ Снят с производства| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $42.5 | $42,50 |
| 10 | $38.2 | $382,00 |
| 100 | $33.9 | $3.390,00 |
| 500 | $30.1 | $15.050,00 |
| 1.000 | $27.8 | $27.800,00 |
EPF8820ARC208-24 Обзор
A Field Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) that combines the high integration of a gate array with the field-programmability of a PLD. The FLEX 8000 architecture sits in the hierarchy as follows: logic cell -> Logic Array Block (LAB) -> row/column interconnect -> FLEX 8000 device -> programmable logic -> semiconductor IC. Compared to simple PLDs (SPLDs/CPLDs), FPGAs provide higher logic density, more registers, and richer interconnect, at the cost of higher unit price and the need for an external configuration memory.
Key features of the EPF8820ARC208-24 include in-circuit reconfigurability (ICR) via Altera EPC1, EPC1064, EPC1213, and EPC1441 serial configuration devices, MultiVolt I/O supporting 3.3 V and 5.0 V interface operation, a built-in Joint Test Action Group (JTAG) boundary-scan test interface, and a typical toggle frequency up to 125 MHz. The architecture is register-rich, making it well-suited to pipelined datapaths, state machines, and bus interfaces.
Typical applications include industrial control glue logic, telecommunications interface cards, glue logic for ASIC prototyping, and bus-bridging interfaces (for example, between a microprocessor and a peripheral bus). Designers migrating legacy FLEX 8000 designs to newer process nodes typically pair the EPF8820ARC208-24 with the MAX+PLUS II or Quartus design environment to retain bitstream compatibility.
When designing with this device, pay attention to the 5 V supply rail tolerance and the need for a dedicated configuration PROM or microcontroller at power-up. Because the FLEX 8000 family is in production decline, lifecycle planning and long-term stocking are recommended for new designs.
Аналоги без доработки для EPF8820ARC208-24 — 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 EPF8820ARC208-24 (тот же форм-фактор и посадочное место) — отличается по Process Technology, Configuration Method, Package, Speed Grade, Usable Gates.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
EPF8820ARC208-2
✅ Прямая замена✓ В наличии
$17.95 / шт.
Открыть даташит →EPF8820ARC208-4
✅ Прямая замена✓ В наличии
$25.4 / шт.
Открыть даташит →EPF8820AQC208-4
✅ Прямая замена✓ В наличии
$32.8 / шт.
Открыть даташит →EPF8820AQC208-3N
✅ Прямая замена✓ В наличии
$11.4 / шт.
Открыть даташит →EPF8820AQC208-2
✅ Прямая замена✓ В наличии
$22.8 / шт.
Открыть даташит →EPF8820AQC208-3
✅ Прямая замена✓ В наличии
$18.95 / шт.
Открыть даташит →EPF8820ARC208-24 Максимальные параметры и электрические характеристики
| Family | FLEX 8000 |
| Usable Gates | 8,000 |
| Logic Cells | 672 |
| Logic Array Blocks (LABs) | 48 |
| User I/O Pins | 152 |
| Maximum Toggle Frequency | 125 MHz |
| Process Technology | 0.42 µm CMOS SRAM |
| Supply Voltage (VCC) | 4.75 V to 5.25 V (5 V nominal) |
| I/O Standards | 3.3 V / 5.0 V MultiVolt I/O |
| Speed Grade | -24 |
| Configuration Method | Serial configuration device (EPC1/EPC1064/EPC1213/EPC1441), parallel EPROM, or JTAG |
| In-Circuit Reconfigurability | Yes (ICR) |
| Корпус | 208-pin RQFP (exposed pad) |
Руководство по цоколевке EPF8820ARC208-24 в корпусе 208-pin rqfp (exposed pad)
Цоколевка для EPF8820ARC208-24 (корпус 208-pin rqfp (exposed pad)). Эта цифровая ИС включает выводы GPIO, интерфейсы связи (UART, SPI, I2C) и выводы питания. Обратитесь к техническому описанию производителя для альтернативных функций выводов и вариантов конфигурации. Необходимо для проектирования встраиваемых систем и трассировки печатных плат.
Нет подробных данных о распиновке для EPF8820ARC208-24.
Обратитесь к даташиту для полной конфигурации выводов.
Типичное применение
EPF8820ARC208-24 подходит для 6 применениеs: Industrial Control Glue Logic, Telecommunications Interface Card, ASIC Prototyping and Emulation, Legacy Peripheral Bus Bridge, Flat-Panel Display Controller, Military and Aerospace Avionics Bus Interface.
Industrial Control Glue Logic
The EPF8820ARC208-24 is well-suited to industrial control glue logic: 8,000 usable gates and 672 logic cells can host multiple state machines, encoder counters, and PWM generators simultaneously, while 152 user I/O provide fan-out to optocouplers, relay drivers, and 24 V signal-conditioning front-ends. Its 5 V MultiVolt I/O directly interfaces to 5 V PLC backplanes without level shifters, and its 125 MHz toggle frequency comfortably handles 50/60 Hz mains-synchronized control loops plus encoder inputs up to several hundred kHz. The 208-pin RQFP package exposes dedicated JTAG pins for in-system reconfiguration during commissioning, and in-circuit reconfigurability allows field firmware updates without powering down the machine.
Рекомендуется
Telecommunications Interface Card
In telecom interface cards the EPF8820ARC208-24 acts as a protocol-bridging controller: 8K gates are sufficient to implement HDLC framing, E1/T1 time-slot assignment, and ATM SAR segmentation, while 152 I/O support parallel bus interfaces to framers and TDM backplanes. The 125 MHz internal toggle rate comfortably meets E1 (2.048 MHz), T1 (1.544 MHz) and STM-1/OC-3 (155 MHz) line-side rates when combined with external PHYs. JTAG-based configuration enables remote bitstream updates via the card-management microcontroller, and the exposed-pad 208-RQFP provides adequate thermal headroom for 5 V operation in sealed CO enclosures. Industrial-grade -24 speed grade timing is well matched to telecom card slot timing budgets.
Рекомендуется
ASIC Prototyping and Emulation
The EPF8820ARC208-24 is frequently used to prototype and emulate sub-blocks of larger ASIC designs: 8K usable gates map cleanly onto typical peripheral controllers, DMA engines, and bus arbiters, while JTAG-based in-circuit reconfigurability allows rapid design iterations by reloading the bitstream in seconds. The 208-pin RQFP exposes enough I/O to break out a 32-bit processor bus plus interrupt and DMA handshakes, which is the typical minimum for a representative ASIC block. Designers can chain multiple EPF8820ARC208-24 devices on a single JTAG chain to emulate larger systems, leveraging identical timing across the -24 speed grade family. Quartus MAX+PLUS II design flow is well documented and supported for legacy IP reuse.
Рекомендуется
Legacy Peripheral Bus Bridge
The EPF8820ARC208-24 is a natural fit for legacy bus-bridging functions between microprocessors, peripherals, and DSPs: 8K gates implement full master/target state machines for ISA, PC/104, or proprietary local buses, while 152 I/O provide ample address and data fan-out plus interrupt and DMA handshake signals. Its 5 V MultiVolt I/O directly drives 5 V peripheral chips without level translation, and the 125 MHz toggle rate supports ISA-style 8-25 MHz bus cycles plus standard asynchronous peripheral handshakes. JTAG in-system configuration allows the bridge personality (master vs target, address mapping) to be swapped in the field, which simplifies inventory for OEMs supporting multiple SKUs.
Рекомендуется
Flat-Panel Display Controller
Flat-panel display controllers benefit from the EPF8820ARC208-24's high I/O count and register-rich architecture: 152 user I/O can simultaneously drive RGB data buses, control signals, and backlight PWM, while the 672 logic cells implement timing generators, gamma-correction lookup tables, and LVDS/TTL conversion logic. The 125 MHz toggle rate is sufficient for XGA (65 MHz pixel clock) and SXGA (108 MHz) panels when the design uses internal pipelined registers, and the -24 speed grade timing accommodates most commercial-grade LCD timing budgets. The 208-pin RQFP exposed pad provides sufficient thermal dissipation for sealed display enclosures. JTAG configuration allows panel-timing personality changes across product variants without hardware rework.
Рекомендуется
Military and Aerospace Avionics Bus Interface
In avionics bus-interface applications the EPF8820ARC208-24 is used for MIL-STD-1553, ARINC 429, and discrete I/O conditioning: 8K gates implement protocol encoders/decoders and error-checking logic, while 152 I/O support parallel avionics databuses plus isolated discrete I/O channels. The -24 speed grade is well matched to ARINC 429's 100 kHz data rate and MIL-STD-1553's 1 MHz word rate, and the 208-pin RQFP package is available in extended-temperature grades suitable for avionics thermal profiles. JTAG-based reconfiguration supports BIT (Built-In Test) personality swaps, and the FLEX 8000 family's long heritage in military and aerospace programs provides the documentation and process pedigree required for DO-254 and MIL-HDBK-454 compliance reviews.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для EPF8820ARC208-24 — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | EPF8820ARC208-2 | EPF8820ARC208-4 | EPF8820AQC208-4 | EPF8820AQC208-3N |
|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera |
| Package | 208-pin RQFP (exposed pad) | 208-pin RQFP (exposed pad) - same | 208-pin RQFP (exposed pad) - same | 208-pin RQFP (exposed pad) - same | 208-pin RQFP (exposed pad) - same |
| Usable Gates | 8,000 | 8,000 | 8,000 | 8,000 | 8,000 |
| Logic Cells | 672 | 672 | 672 | 672 | 672 |
| User I/O | 152 | 152 | 152 | 152 | 152 |
| Speed Grade | -24 | -2 (faster) | -4 (slower) | -4 | -3 |
| Supply Voltage | 4.75-5.25 V | 4.75-5.25 V | 4.75-5.25 V | 4.75-5.25 V | 4.75-5.25 V |
| Process / Grade | 0.42 µm standard | 0.42 µm standard | 0.42 µm standard | 0.42 µm Q-grade (lower power) | 0.42 µm Q-grade (lower power) |
| Configuration PROM Compatibility | EPC1/EPC1064/EPC1213/EPC1441 | EPC1/EPC1064/EPC1213/EPC1441 | EPC1/EPC1064/EPC1213/EPC1441 | EPC1/EPC1064/EPC1213/EPC1441 | EPC1/EPC1064/EPC1213/EPC1441 |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Ключевые отличия
- Slowest available speed grade in the EPF8820A 208-RQFP family (против EPF8820ARC208-2)
- Lower-power Q-process alternatives available in same package (против EPF8820AQC208-4)
- Maximum available I/O count for the EPF8820 family (против EPF8820ARC160-2 (160-pin RQFP))
Заметки по проектированию
The EPF8820ARC208-24 requires a tightly regulated 5 V supply (4.75 V to 5.25 V). Decouple VCCINT (core) and VCCIO (I/O bank) pins with 0.1 µF ceramic capacitors placed within 5 mm of each supply pin, plus a single 47 µF tantalum bulk capacitor per supply plane. Add a ferrite bead between the analog 5 V rail and the FPGA supply to suppress switching noise from neighbouring digital ICs. During configuration, Icc rises sharply (typically 200-300 mA peak for the -24 speed grade), so the regulator must source at least 500 mA without sagging below 4.75 V. Estimated: based on FLEX 8000 family ICC figures and standard decoupling practice; consult the datasheet for verified ICC values.
Solder the exposed thermal pad of the 208-pin RQFP package to a copper pour on the top layer, stitching it with at least 8 thermal vias (0.3 mm drill, 1.0 mm pitch) to an inner ground plane. Without this thermal pad connection, junction temperature can exceed 100 °C at full toggle frequency and ambient > 50 °C. Route all configuration signals (nCONFIG, nSTATUS, CONF_DONE, DCLK, DATA0) as short traces (< 50 mm) and keep them away from switching power lines. Provide a 4.7 kΩ pull-up on nCONFIG to VCCIO and a 4.7 kΩ pull-up on nSTATUS to VCCIO if not driven by the configuration PROM.
Do not leave MSEL[2:0] floating: these pins select the configuration mode (EPC1 vs parallel EPROM vs JTAG) and a floating MSEL can latch into an unsupported mode and prevent configuration. Connect them to VCC or GND via 1 kΩ resistors. Do not tie CONF_DONE low before power-up: this prevents configuration and is a common debugging pitfall. Always sequence the configuration PROM VCC and the FPGA VCCINT within 100 ms to avoid PROM corruption. Estimated: timing values are conservative defaults; verify against the FLEX 8000 datasheet configuration timing diagrams.
Информация о соответствии
Compliance status not confirmed in the provided FLEX 8000 datasheet excerpts. Original Altera FLEX 8000 family parts predate RoHS and may use tin-lead (SnPb) finish. For RoHS-compliant assembly, choose EPF8820AQC208-3N or EPF8820AQC208-2N variants (suffix 'N' typically denotes lead-free).
