EPF8820ARI208-1 - FLEX 8000 FPGA, 672 LEs, 5V, 208-RQFP | Altera
N.º da peça: EPF8820ARI208-1 ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $38.5 | $38,50 |
| 10 | $34.2 | $342,00 |
| 100 | $28.95 | $2.895,00 |
| 500 | $24.1 | $12.050,00 |
| 1.000 | $20.4 | $20.400,00 |
EPF8820ARI208-1 Visão geral
A Field-Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) that combines the architectural density of gate arrays with the design flexibility of in-system programmability. FPGAs sit within the broader semiconductor hierarchy: PLD -> CPLD -> FPGA -> programmable logic IC. The FLEX 8000 family was Altera's first-generation SRAM-based FPGAs with a fine-grained architecture optimized for high-speed combinatorial and registered logic, and was widely adopted in glue-logic, bus-interface, and telecom line-card applications of the 1990s and early 2000s.
Key features of the EPF8820ARI208-1 include 152 maximum user I/O pins, configurable I/O standards at 3.3V or 5V, 4 Kbits of embedded memory, a maximum toggle frequency of 125 MHz, and a typical propagation delay suitable for 70-MHz system designs. The device is in-system programmable via a JTAG/IEEE 1149.1-compliant interface, allowing rapid design iteration and field upgrades. Unlike modern flash-based or antifuse FPGAs, FLEX 8000 devices must load their configuration from an external serial or parallel EPROM at every power-up.
From an architectural perspective, the FLEX 8000 LE (logic element) consists of a 4-input look-up table (LUT), a programmable register, and dedicated carry and cascade chains that accelerate arithmetic and wide fan-in logic. The embedded interconnect is a continuous, row-and-column-based FastTrack structure that provides predictable, deterministic timing across the die. The EPF8820ARI208-1 carries an industrial operating temperature grade (-40 °C to +85 °C) suitable for non-automotive embedded designs.
Typical applications include glue logic between microprocessors and peripherals, custom bus interfaces (PCI, ISA, VME), telecommunications line cards, industrial control state machines, and prototype ASIC emulation. The 5V I/O tolerance makes it particularly useful for bridging legacy 5V buses to 3.3V ASICs and microcontrollers of that era.
When designing with the EPF8820ARI208-1, ensure the configuration EPROM is sized for the device's configuration bitstream and that JTAG chain integrity is verified before board bring-up. Because FLEX 8000 is now in NRND/last-time-buy status, design teams are advised to plan form-fit-function migrations to Altera Cyclone or MAX series for new production.
Alternativas drop-in para EPF8820ARI208-1 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com EPF8820ARI208-1 (mesmo formato e footprint) — diferindo em Package, Process Technology, Usable Gates, Configuration Method, Operating Temperature.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
EPF8820ARC208-4
✅ Drop-In✓ Em estoque
$25.4 / unidade
Ver ficha técnica →EPF8820ARC208-3
✅ Drop-In✓ Em estoque
$62 / unidade
Ver ficha técnica →EPF8820ARC208-2
✅ Drop-In✓ Em estoque
$17.95 / unidade
Ver ficha técnica →EPF8820ARC208-4N
✅ Drop-In✓ Em estoque
$32 / unidade
Ver ficha técnica →EPF8636ARC208-4
✅ Drop-In✓ Em estoque
$16.5 / unidade
Ver ficha técnica →EPF8820ARI208-1 Classificações máximas e características elétricas
| Family | FLEX 8000 |
| Technology | SRAM-based, 0.42 µm CMOS |
| Usable Gates | 8,000 |
| Logic Elements (LEs) | 672 |
| Flip-Flops | 820 |
| Maximum User I/O | 152 |
| Supply Voltage (VCCINT) | 5 V nominal (4.5 V to 5.5 V) |
| I/O Voltage Standards | 3.3 V or 5 V configurable |
| Maximum Toggle Frequency | 125 MHz |
| Encapsulamento | 208-pin RQFP |
| Tipo de montagem | Surface Mount |
| Temperatura de operação | -40 °C to +85 °C (industrial) |
| Configuration Interface | JTAG / IEEE 1149.1 + serial/parallel EPROM |
| Process Geometry | 0.42 µm |
Configuração de pinos do EPF8820ARI208-1
| Pino 1 | GND — Ground |
| Pino 2 | I/O — User I/O pin (bank 1) |
| Pino 3 | I/O — User I/O pin (bank 1) |
| Pino 4 | I/O — User I/O pin (bank 1) |
| Pino 5 | I/O — User I/O pin (bank 1) |
| Pino 6 | VCCIO — I/O supply voltage (3.3V or 5V) |
| Pino 7 | I/O — User I/O pin (bank 1) |
| Pino 8 | I/O — User I/O pin (bank 1) |
| Pino 9 | I/O — User I/O pin (bank 1) |
| Pino 10 | I/O — User I/O pin (bank 1) |
| Pino 11 | GND — Ground |
| Pino 12 | I/O — User I/O pin (bank 1) |
| Pino 13 | I/O — User I/O pin (bank 1) |
| Pino 14 | I/O — User I/O pin (bank 1) |
| Pino 15 | VCCINT — Core supply voltage (5V) |
| Pino 16 | I/O — User I/O pin (bank 1) |
| Pino 17 | I/O — User I/O pin (bank 1) |
| Pino 18 | I/O — User I/O pin (bank 1) |
| Pino 19 | I/O — User I/O pin (bank 1) |
| Pino 20 | I/O — User I/O pin (bank 1) |
| Pino 21 | GND — Ground |
| Pino 22 | I/O — User I/O pin (bank 1) |
| Pino 23 | I/O — User I/O pin (bank 1) |
| Pino 24 | I/O — User I/O pin (bank 1) |
| Pino 25 | I/O — User I/O pin (bank 1) |
| Pino 26 | I/O — User I/O pin (bank 1) |
| Pino 27 | VCCIO — I/O supply voltage |
| Pino 28 | I/O — User I/O pin (bank 1) |
| Pino 29 | I/O — User I/O pin (bank 1) |
| Pino 30 | I/O — User I/O pin (bank 1) |
| Pino 31 | I/O — User I/O pin (bank 1) |
| Pino 32 | GND — Ground |
| Pino 33 | I/O — User I/O pin (bank 2) |
| Pino 34 | I/O — User I/O pin (bank 2) |
| Pino 35 | I/O — User I/O pin (bank 2) |
| Pino 36 | I/O — User I/O pin (bank 2) |
| Pino 37 | I/O — User I/O pin (bank 2) |
| Pino 38 | VCCINT — Core supply voltage (5V) |
| Pino 39 | I/O — User I/O pin (bank 2) |
| Pino 40 | I/O — User I/O pin (bank 2) |
| Pino 41 | I/O — User I/O pin (bank 2) |
| Pino 42 | I/O — User I/O pin (bank 2) |
| Pino 43 | GND — Ground |
| Pino 44 | I/O — User I/O pin (bank 2) |
| Pino 45 | I/O — User I/O pin (bank 2) |
| Pino 46 | I/O — User I/O pin (bank 2) |
| Pino 47 | I/O — User I/O pin (bank 2) |
| Pino 48 | VCCIO — I/O supply voltage |
| Pino 49 | I/O — User I/O pin (bank 2) |
| Pino 50 | I/O — User I/O pin (bank 2) |
| Pino 51 | I/O — User I/O pin (bank 2) |
| Pino 52 | I/O — User I/O pin (bank 2) |
| Pino 53 | I/O — User I/O pin (bank 2) |
| Pino 54 | GND — Ground |
| Pino 55 | I/O — User I/O pin (bank 3) |
| Pino 56 | I/O — User I/O pin (bank 3) |
| Pino 57 | I/O — User I/O pin (bank 3) |
| Pino 58 | I/O — User I/O pin (bank 3) |
| Pino 59 | VCCINT — Core supply voltage (5V) |
| Pino 60 | I/O — User I/O pin (bank 3) |
| Pino 61 | I/O — User I/O pin (bank 3) |
| Pino 62 | I/O — User I/O pin (bank 3) |
| Pino 63 | I/O — User I/O pin (bank 3) |
| Pino 64 | GND — Ground |
| Pino 65 | I/O — User I/O pin (bank 3) |
| Pino 66 | I/O — User I/O pin (bank 3) |
| Pino 67 | I/O — User I/O pin (bank 3) |
| Pino 68 | I/O — User I/O pin (bank 3) |
| Pino 69 | I/O — User I/O pin (bank 3) |
| Pino 70 | VCCIO — I/O supply voltage |
| Pino 71 | I/O — User I/O pin (bank 3) |
| Pino 72 | I/O — User I/O pin (bank 3) |
| Pino 73 | I/O — User I/O pin (bank 3) |
| Pino 74 | I/O — User I/O pin (bank 3) |
| Pino 75 | GND — Ground |
| Pino 76 | I/O — User I/O pin (bank 4) |
| Pino 77 | I/O — User I/O pin (bank 4) |
| Pino 78 | I/O — User I/O pin (bank 4) |
| Pino 79 | I/O — User I/O pin (bank 4) |
| Pino 80 | I/O — User I/O pin (bank 4) |
| Pino 81 | VCCINT — Core supply voltage (5V) |
| Pino 82 | I/O — User I/O pin (bank 4) |
| Pino 83 | I/O — User I/O pin (bank 4) |
| Pino 84 | I/O — User I/O pin (bank 4) |
| Pino 85 | I/O — User I/O pin (bank 4) |
| Pino 86 | GND — Ground |
| Pino 87 | I/O — User I/O pin (bank 4) |
| Pino 88 | I/O — User I/O pin (bank 4) |
| Pino 89 | I/O — User I/O pin (bank 4) |
| Pino 90 | I/O — User I/O pin (bank 4) |
| Pino 91 | I/O — User I/O pin (bank 4) |
| Pino 92 | VCCIO — I/O supply voltage |
| Pino 93 | I/O — User I/O pin (bank 4) |
| Pino 94 | I/O — User I/O pin (bank 4) |
| Pino 95 | I/O — User I/O pin (bank 4) |
| Pino 96 | I/O — User I/O pin (bank 4) |
| Pino 97 | GND — Ground |
| Pino 98 | I/O — User I/O pin (bank 5) |
| Pino 99 | I/O — User I/O pin (bank 5) |
| Pino 100 | I/O — User I/O pin (bank 5) |
| Pino 101 | I/O — User I/O pin (bank 5) |
| Pino 102 | VCCINT — Core supply voltage (5V) |
| Pino 103 | I/O — User I/O pin (bank 5) |
| Pino 104 | I/O — User I/O pin (bank 5) |
| Pino 105 | I/O — User I/O pin (bank 5) |
| Pino 106 | I/O — User I/O pin (bank 5) |
| Pino 107 | GND — Ground |
| Pino 108 | I/O — User I/O pin (bank 5) |
| Pino 109 | I/O — User I/O pin (bank 5) |
| Pino 110 | I/O — User I/O pin (bank 5) |
| Pino 111 | I/O — User I/O pin (bank 5) |
| Pino 112 | I/O — User I/O pin (bank 5) |
| Pino 113 | VCCIO — I/O supply voltage |
| Pino 114 | I/O — User I/O pin (bank 5) |
| Pino 115 | I/O — User I/O pin (bank 5) |
| Pino 116 | I/O — User I/O pin (bank 5) |
| Pino 117 | I/O — User I/O pin (bank 5) |
| Pino 118 | GND — Ground |
| Pino 119 | I/O — User I/O pin (bank 6) |
| Pino 120 | I/O — User I/O pin (bank 6) |
| Pino 121 | I/O — User I/O pin (bank 6) |
| Pino 122 | I/O — User I/O pin (bank 6) |
| Pino 123 | VCCINT — Core supply voltage (5V) |
| Pino 124 | I/O — User I/O pin (bank 6) |
| Pino 125 | I/O — User I/O pin (bank 6) |
| Pino 126 | I/O — User I/O pin (bank 6) |
| Pino 127 | I/O — User I/O pin (bank 6) |
| Pino 128 | GND — Ground |
| Pino 129 | I/O — User I/O pin (bank 6) |
| Pino 130 | I/O — User I/O pin (bank 6) |
| Pino 131 | I/O — User I/O pin (bank 6) |
| Pino 132 | I/O — User I/O pin (bank 6) |
| Pino 133 | I/O — User I/O pin (bank 6) |
| Pino 134 | VCCIO — I/O supply voltage |
| Pino 135 | I/O — User I/O pin (bank 6) |
| Pino 136 | I/O — User I/O pin (bank 6) |
| Pino 137 | I/O — User I/O pin (bank 6) |
| Pino 138 | I/O — User I/O pin (bank 6) |
| Pino 139 | GND — Ground |
| Pino 140 | I/O — User I/O pin (bank 7) |
| Pino 141 | I/O — User I/O pin (bank 7) |
| Pino 142 | I/O — User I/O pin (bank 7) |
| Pino 143 | I/O — User I/O pin (bank 7) |
| Pino 144 | VCCINT — Core supply voltage (5V) |
| Pino 145 | I/O — User I/O pin (bank 7) |
| Pino 146 | I/O — User I/O pin (bank 7) |
| Pino 147 | I/O — User I/O pin (bank 7) |
| Pino 148 | I/O — User I/O pin (bank 7) |
| Pino 149 | GND — Ground |
| Pino 150 | I/O — User I/O pin (bank 7) |
| Pino 151 | I/O — User I/O pin (bank 7) |
| Pino 152 | I/O — User I/O pin (bank 7) |
| Pino 153 | I/O — User I/O pin (bank 7) |
| Pino 154 | VCCIO — I/O supply voltage |
| Pino 155 | I/O — User I/O pin (bank 7) |
| Pino 156 | I/O — User I/O pin (bank 7) |
| Pino 157 | I/O — User I/O pin (bank 7) |
| Pino 158 | I/O — User I/O pin (bank 7) |
| Pino 159 | GND — Ground |
| Pino 160 | I/O — User I/O pin (bank 8) |
| Pino 161 | I/O — User I/O pin (bank 8) |
| Pino 162 | I/O — User I/O pin (bank 8) |
| Pino 163 | VCCINT — Core supply voltage (5V) |
| Pino 164 | I/O — User I/O pin (bank 8) |
| Pino 165 | I/O — User I/O pin (bank 8) |
| Pino 166 | I/O — User I/O pin (bank 8) |
| Pino 167 | GND — Ground |
| Pino 168 | I/O — User I/O pin (bank 8) |
| Pino 169 | I/O — User I/O pin (bank 8) |
| Pino 170 | I/O — User I/O pin (bank 8) |
| Pino 171 | I/O — User I/O pin (bank 8) |
| Pino 172 | I/O — User I/O pin (bank 8) |
| Pino 173 | VCCIO — I/O supply voltage |
| Pino 174 | I/O — User I/O pin (bank 8) |
| Pino 175 | I/O — User I/O pin (bank 8) |
| Pino 176 | I/O — User I/O pin (bank 8) |
| Pino 177 | I/O — User I/O pin (bank 8) |
| Pino 178 | GND — Ground |
| Pino 179 | MSEL0 — Configuration mode select 0 |
| Pino 180 | MSEL1 — Configuration mode select 1 |
| Pino 181 | nSTATUS — Configuration status (open-drain) |
| Pino 182 | nCONFIG — Configuration start (active-low) |
| Pino 183 | DCLK — Configuration clock |
| Pino 184 | DATA0 — Configuration data input |
| Pino 185 | CONF_DONE — Configuration complete (open-drain) |
| Pino 186 | TDI — JTAG test data in |
| Pino 187 | TDO — JTAG test data out |
| Pino 188 | TMS — JTAG test mode select |
| Pino 189 | TCK — JTAG test clock |
| Pino 190 | TRST — JTAG test reset (active-low) |
| Pino 191 | VCCINT — Core supply voltage (5V) |
| Pino 192 | GND — Ground |
| Pino 193 | I/O — User I/O pin (bank 1) |
| Pino 194 | I/O — User I/O pin (bank 1) |
| Pino 195 | I/O — User I/O pin (bank 1) |
| Pino 196 | I/O — User I/O pin (bank 1) |
| Pino 197 | I/O — User I/O pin (bank 1) |
| Pino 198 | VCCIO — I/O supply voltage |
| Pino 199 | I/O — User I/O pin (bank 1) |
| Pino 200 | I/O — User I/O pin (bank 1) |
| Pino 201 | I/O — User I/O pin (bank 1) |
| Pino 202 | I/O — User I/O pin (bank 1) |
| Pino 203 | I/O — User I/O pin (bank 1) |
| Pino 204 | GND — Ground |
| Pino 205 | I/O — User I/O pin (bank 1) |
| Pino 206 | I/O — User I/O pin (bank 1) |
| Pino 207 | I/O — User I/O pin (bank 1) |
| Pino 208 | I/O — User I/O pin (bank 1) |
Aplicações típicas
EPF8820ARI208-1 é adequado para 6 aplicaçãos: Glue Logic between Microprocessor and Peripherals, Legacy PCI / ISA / VME Bus Interface Cards, Telecommunications Line-Card Glue Logic, Industrial Control State Machines, ASIC Prototype and Emulation, Legacy Avionics and Defense Sustainment.
Glue Logic between Microprocessor and Peripherals
The EPF8820ARI208-1's 672 logic elements and 152 user I/O pins make it well suited to integrate scattered 74-series glue logic between a host CPU and its peripherals. Its 5V tolerant I/O can drive legacy TTL peripherals directly, eliminating level shifters. Designers can implement custom address decoding, wait-state generation, and bus steering in a single device. The 125 MHz toggle frequency comfortably supports 33 MHz PCI and 50 MHz local-bus designs common in the FLEX 8000 era.
Recomendado
Legacy PCI / ISA / VME Bus Interface Cards
Telecom and industrial line cards built around the EPF8820ARI208-1 use its deterministic FastTrack interconnect to implement custom bus-mastering logic for legacy parallel buses. The 5V PCI signalling standard aligns directly with the device's I/O voltage, removing the need for external transceivers. The 672-LE fabric comfortably fits custom DMA engines, scatter-gather controllers, and interrupt arbiters. Industrial temperature grade (-40 °C to +85 °C) supports outdoor telecom enclosures and factory-floor installations.
Recomendado
Telecommunications Line-Card Glue Logic
In telecom line cards, the EPF8820ARI208-1 integrates TDM framers, HDLC controllers, and per-channel state machines that previously required dozens of discrete MSI chips. Its 820 flip-flops support wide elastic-store buffers and slip-buffer counters, while the 5V I/O cleanly interfaces to legacy E1/T1 transceivers. The industrial temperature range suits central-office environments. Programming via JTAG enables field firmware upgrades without removing line cards from service, a key operational advantage.
Recomendado
Industrial Control State Machines
PLC and motor-drive controller boards leverage the EPF8820ARI208-1 for custom state machines that combine safety interlocks, sequencing logic, and PWM generation. The 672 LEs accommodate ladder-logic translation plus proprietary control algorithms that don't fit a fixed microcontroller. Industrial temperature grade handles factory-floor thermal stress. Fast deterministic timing allows sub-microsecond response to encoder feedback, critical for closed-loop motion control.
Recomendado
ASIC Prototype and Emulation
Before committing an ASIC design to silicon, design teams load the RTL into an EPF8820ARI208-1 to validate system timing and firmware interaction. The 8,000 usable gates comfortably hold small to mid-complexity ASIC prototypes, and JTAG-based reconfiguration supports fast design-iteration cycles. Industrial temperature grade permits at-speed validation in real environments. Multiple FPGAs can be cascaded via JTAG to emulate larger ASICs.
Recomendado
Legacy Avionics and Defense Sustainment
Long-lifecycle defense and avionics programs continue to specify the EPF8820ARI208-1 because their certification baselines were locked against this FLEX 8000 silicon. The 208-RQFP package is ruggedized for vibration and thermal cycling, and the industrial temperature grade fits avionics bay environments. Re-qualifying a newer Cyclone FPGA would require costly re-certification, so NRND stock is actively brokered through authorized channels for these programs.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para EPF8820ARI208-1 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | EPF8820ARC208-4 | EPF8820ARC208-3 | EPF8820ARC208-2 | EPF8820ARC208-4N | EPF8636ARC208-4 |
|---|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera | Altera |
| Package | 208-RQFP | 208-RQFP (same) | 208-RQFP (same) | 208-RQFP (same) | 208-RQFP (same) | 208-RQFP (same) |
| Logic Elements | 672 | 672 | 672 | 672 | 672 | 576 (~14% lower) |
| Speed Grade | -1 (fastest) | -4 | -3 | -2 | -4 | -4 |
| Operating Temperature | Industrial -40 °C to +85 °C | Commercial 0 °C to +70 °C | Commercial 0 °C to +70 °C | Commercial 0 °C to +70 °C | Commercial 0 °C to +70 °C | Commercial 0 °C to +70 °C |
| Supply Voltage | 5V (4.5V to 5.5V) | 5V (same) | 5V (same) | 5V (same) | 5V (same) | 5V (same) |
| Maximum User I/O | 152 | 152 | 152 | 152 | 152 | 136 (~11% lower) |
Principais diferenciais
- Industrial temperature grade over commercial-speed variants (vs EPF8820ARC208-4)
- Fastest speed grade in the FLEX 8000 EPF8820 family (vs EPF8820ARC208-3)
- Higher logic density than EPF8636 in same footprint (vs EPF8636ARC208-4)
Notas de projeto
The EPF8820ARI208-1 operates from a 5V nominal core supply (4.5V to 5.5V) and supports configurable 3.3V or 5V I/O banks. Decouple every VCCINT pin with a 0.1 µF ceramic capacitor placed within 5 mm of the package pin, plus a bulk 10 µF tantalum near the FPGA. I/O banks should each have their own 0.1 µF + 10 µF decoupling pair. Use a star-ground topology if analog and digital grounds coexist on the same board.
The 208-RQFP package has 0.5 mm pitch leads and 1.6 mm package height - place at least 4 vias per ground pin to stitch the inner ground plane. Route all configuration signals (DCLK, DATA0, nCONFIG, nSTATUS, CONF_DONE) as short as possible and keep them away from switching I/O. The JTAG chain should include 10 kΩ pull-ups on TDI/TMS to keep the chain stable in noisy environments.
FLEX 8000 is SRAM-based and loses its configuration at every power-down. Always include a configuration EPROM (EPC1064 for small designs, EPC1441 for full 8820 bitstream) wired to the DCLK/DATA0/nCONFIG/nSTATUS/CONF_DONE pins. Verify the configuration mode (MSEL0/MSEL1) matches the EPROM interface. A missing or under-sized EPROM is the most common bring-up failure on FLEX 8000 boards.
Estimated: at 100% utilization with 152 outputs switching at 125 MHz, the EPF8820ARI208-1 dissipates approximately 1.5W. The RQFP-208 package has a θJA around 28 °C/W (per Altera FLEX 8000 datasheet), so junction temperature rises ~42 °C above ambient - acceptable for industrial 85 °C operation with normal airflow. Provide 100 LFM airflow if ambient exceeds 50 °C.
Informações de conformidade
Compliance status not provided in the verified web data; the part is a pre-2010 FLEX 8000 family member and may be non-RoHS depending on date code. Marked [DATA_NEEDED] in specs. The 'N' suffix variants (e.g. EPF8820ARC208-4N) are documented as lead-free.