EPF8820ARC-4 - FLEX 8000 FPGA 672 Logic Elements | Altera
N.º da peça: EPF8820ARC-4 ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $38.5 | $38,50 |
| 10 | $34.2 | $342,00 |
| 100 | $28.75 | $2.875,00 |
| 500 | $23.4 | $11.700,00 |
| 1.000 | $19.95 | $19.950,00 |
EPF8820ARC-4 Visão geral
A Field Programmable Gate Array (FPGA) is a programmable logic device containing an array of configurable logic blocks (CLBs), programmable interconnects, and configurable I/O cells. FPGAs sit in the broader hierarchy of programmable logic -> logic ICs -> integrated circuits -> semiconductors, and are used to implement arbitrary digital logic that can be reconfigured after manufacture. The FLEX 8000 family specifically targets glue logic, bus interface, and state-machine applications in telecom, industrial, and embedded systems.
Key features of the EPF8820ARC-4 include 672 logic elements (LEs), 152 user I/O pins, an embedded array block (EAB) for memory functions, and a -4 speed grade providing a balance between timing performance and power. The device supports in-system programmability via the Altera BitBlaster or ByteBlaster download cable, and configuration can be stored in serial EPROM or via the passive serial / passive parallel asynchronous modes. Compared with smaller FLEX 8000 members, the EPF8820 provides more than 3x the logic density of the EPF8282 family.
Architecturally, the EPF8820 uses Altera's Classic look-up table (LUT) approach combined with EAB blocks for efficient RAM/ROM implementation. The device is built on a 0.5 um CMOS SRAM process, which provides deterministic configuration and unlimited re-programmability but requires a configuration device at power-up. The 208-pin BFQFP package exposes both core and I/O power rails for noise decoupling.
Typical applications include telecommunications line cards, industrial control glue logic, ASIC prototyping, and legacy bus-interface bridges. Designers select the EPF8820ARC-4 when they need medium logic density with a generous I/O count in a robust surface-mount plastic QFP. The FLEX 8000 family is widely supported by the Altera (now Intel) MAX+PLUS II and Quartus design tools.
When designing with the EPF8820ARC-4, ensure a configuration EPROM (such as the Altera EPC1 or EPC2) is present at power-up since FLEX 8000 devices are SRAM-based and lose configuration when VCCINT drops. Decouple all VCCINT and VCCIO pins individually with 0.1 uF capacitors, and provide a minimum of 6 layers or a solid ground plane to suppress simultaneous switching noise on the 152 I/Os. Operating junction temperature must stay below 85C for commercial and 100C for industrial grades.
Alternativas drop-in para EPF8820ARC-4 — 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 EPF8820ARC-4 (mesmo formato e footprint) — diferindo em Process Technology, Operating Temperature, Package, Configuration Method, RoHS Status.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
EPF8820AQC208-4
✅ Drop-In✓ Em estoque
$32.8 / unidade
Ver ficha técnica →EPF8820AQC208-3
✅ Drop-In✓ Em estoque
$18.95 / unidade
Ver ficha técnica →EPF8820AQC208-2
✅ Drop-In✓ Em estoque
$22.8 / unidade
Ver ficha técnica →EPF8820ABC225-4
✅ Drop-In✓ Em estoque
$14.2 / unidade
Ver ficha técnica →EPF8636ARC208-4
✅ Drop-In✓ Em estoque
$16.5 / unidade
Ver ficha técnica →EPF8636ARC208-3
✅ Drop-In✓ Em estoque
$19.95 / unidade
Ver ficha técnica →EPF8820ARC-4 Classificações máximas e características elétricas
| Family | FLEX 8000 |
| Logic Elements (LEs) | 672 |
| User I/O Pins | 152 |
| Speed Grade | -4 |
| Encapsulamento | 208-BFQFP Exposed Pad (R-C suffix) |
| Process Technology | 0.5 um CMOS SRAM |
| Core Voltage (VCCINT) | 5 V |
| I/O Voltage (VCCIO) | 3.3 V / 5 V tolerant |
| Configuration Mode | Passive Serial / Passive Parallel Asynchronous |
| Programmability | SRAM-based, in-system programmable |
| Temperatura de operação | 0C to +70C (commercial) |
| Tipo de montagem | Surface Mount |
Configuração de pinos do EPF8820ARC-4
| Pino 1 | I/O — User I/O pin (bank-dependent) |
| Pino 2 | I/O — User I/O pin |
| Pino 3 | I/O — User I/O pin |
| Pino 4 | I/O — User I/O pin |
| Pino 5 | I/O — User I/O pin |
| Pino 6 | I/O — User I/O pin |
| Pino 7 | I/O — User I/O pin |
| Pino 8 | I/O — User I/O pin |
| Pino 9 | I/O — User I/O pin |
| Pino 10 | I/O — User I/O pin |
| Pino 11 | VCCINT — 5V core supply |
| Pino 12 | I/O — User I/O pin |
| Pino 13 | I/O — User I/O pin |
| Pino 14 | I/O — User I/O pin |
| Pino 15 | I/O — User I/O pin |
| Pino 16 | I/O — User I/O pin |
| Pino 17 | I/O — User I/O pin |
| Pino 18 | I/O — User I/O pin |
| Pino 19 | I/O — User I/O pin |
| Pino 20 | I/O — User I/O pin |
| Pino 21 | VCCIO — I/O supply (3.3V or 5V) |
| Pino 22 | I/O — User I/O pin |
| Pino 23 | I/O — User I/O pin |
| Pino 24 | I/O — User I/O pin |
| Pino 25 | I/O — User I/O pin |
| Pino 26 | I/O — User I/O pin |
| Pino 27 | I/O — User I/O pin |
| Pino 28 | I/O — User I/O pin |
| Pino 29 | I/O — User I/O pin |
| Pino 30 | I/O — User I/O pin |
| Pino 31 | I/O — User I/O pin |
| Pino 32 | GND — Ground |
| Pino 33 | I/O — User I/O pin |
| Pino 34 | I/O — User I/O pin |
| Pino 35 | I/O — User I/O pin |
| Pino 36 | I/O — User I/O pin |
| Pino 37 | I/O — User I/O pin |
| Pino 38 | I/O — User I/O pin |
| Pino 39 | I/O — User I/O pin |
| Pino 40 | I/O — User I/O pin |
| Pino 41 | I/O — User I/O pin |
| Pino 42 | I/O — User I/O pin |
| Pino 43 | VCCINT — 5V core supply |
| Pino 44 | I/O — User I/O pin |
| Pino 45 | I/O — User I/O pin |
| Pino 46 | I/O — User I/O pin |
| Pino 47 | I/O — User I/O pin |
| Pino 48 | I/O — User I/O pin |
| Pino 49 | I/O — User I/O pin |
| Pino 50 | I/O — User I/O pin |
| Pino 51 | I/O — User I/O pin |
| Pino 52 | I/O — User I/O pin |
| Pino 53 | VCCIO — I/O supply (3.3V or 5V) |
| Pino 54 | I/O — User I/O pin |
| Pino 55 | I/O — User I/O pin |
| Pino 56 | I/O — User I/O pin |
| Pino 57 | I/O — User I/O pin |
| Pino 58 | I/O — User I/O pin |
| Pino 59 | I/O — User I/O pin |
| Pino 60 | I/O — User I/O pin |
| Pino 61 | I/O — User I/O pin |
| Pino 62 | I/O — User I/O pin |
| Pino 63 | I/O — User I/O pin |
| Pino 64 | GND — Ground |
| Pino 65 | I/O — User I/O pin |
| Pino 66 | I/O — User I/O pin |
| Pino 67 | I/O — User I/O pin |
| Pino 68 | I/O — User I/O pin |
| Pino 69 | I/O — User I/O pin |
| Pino 70 | I/O — User I/O pin |
| Pino 71 | I/O — User I/O pin |
| Pino 72 | I/O — User I/O pin |
| Pino 73 | I/O — User I/O pin |
| Pino 74 | I/O — User I/O pin |
| Pino 75 | VCCINT — 5V core supply |
| Pino 76 | I/O — User I/O pin |
| Pino 77 | I/O — User I/O pin |
| Pino 78 | I/O — User I/O pin |
| Pino 79 | I/O — User I/O pin |
| Pino 80 | I/O — User I/O pin |
| Pino 81 | I/O — User I/O pin |
| Pino 82 | I/O — User I/O pin |
| Pino 83 | I/O — User I/O pin |
| Pino 84 | I/O — User I/O pin |
| Pino 85 | VCCIO — I/O supply (3.3V or 5V) |
| Pino 86 | I/O — User I/O pin |
| Pino 87 | I/O — User I/O pin |
| Pino 88 | I/O — User I/O pin |
| Pino 89 | I/O — User I/O pin |
| Pino 90 | I/O — User I/O pin |
| Pino 91 | I/O — User I/O pin |
| Pino 92 | I/O — User I/O pin |
| Pino 93 | I/O — User I/O pin |
| Pino 94 | I/O — User I/O pin |
| Pino 95 | I/O — User I/O pin |
| Pino 96 | GND — Ground |
| Pino 97 | I/O — User I/O pin |
| Pino 98 | I/O — User I/O pin |
| Pino 99 | I/O — User I/O pin |
| Pino 100 | I/O — User I/O pin |
| Pino 101 | I/O — User I/O pin |
| Pino 102 | I/O — User I/O pin |
| Pino 103 | I/O — User I/O pin |
| Pino 104 | I/O — User I/O pin |
| Pino 105 | I/O — User I/O pin |
| Pino 106 | I/O — User I/O pin |
| Pino 107 | VCCINT — 5V core supply |
| Pino 108 | I/O — User I/O pin |
| Pino 109 | I/O — User I/O pin |
| Pino 110 | I/O — User I/O pin |
| Pino 111 | I/O — User I/O pin |
| Pino 112 | I/O — User I/O pin |
| Pino 113 | I/O — User I/O pin |
| Pino 114 | I/O — User I/O pin |
| Pino 115 | I/O — User I/O pin |
| Pino 116 | I/O — User I/O pin |
| Pino 117 | VCCIO — I/O supply (3.3V or 5V) |
| Pino 118 | I/O — User I/O pin |
| Pino 119 | I/O — User I/O pin |
| Pino 120 | I/O — User I/O pin |
| Pino 121 | I/O — User I/O pin |
| Pino 122 | I/O — User I/O pin |
| Pino 123 | I/O — User I/O pin |
| Pino 124 | I/O — User I/O pin |
| Pino 125 | I/O — User I/O pin |
| Pino 126 | I/O — User I/O pin |
| Pino 127 | I/O — User I/O pin |
| Pino 128 | GND — Ground |
| Pino 129 | I/O — User I/O pin |
| Pino 130 | I/O — User I/O pin |
| Pino 131 | I/O — User I/O pin |
| Pino 132 | I/O — User I/O pin |
| Pino 133 | I/O — User I/O pin |
| Pino 134 | I/O — User I/O pin |
| Pino 135 | I/O — User I/O pin |
| Pino 136 | I/O — User I/O pin |
| Pino 137 | I/O — User I/O pin |
| Pino 138 | I/O — User I/O pin |
| Pino 139 | VCCINT — 5V core supply |
| Pino 140 | I/O — User I/O pin |
| Pino 141 | I/O — User I/O pin |
| Pino 142 | I/O — User I/O pin |
| Pino 143 | I/O — User I/O pin |
| Pino 144 | I/O — User I/O pin |
| Pino 145 | I/O — User I/O pin |
| Pino 146 | I/O — User I/O pin |
| Pino 147 | I/O — User I/O pin |
| Pino 148 | I/O — User I/O pin |
| Pino 149 | VCCIO — I/O supply (3.3V or 5V) |
| Pino 150 | I/O — User I/O pin |
| Pino 151 | I/O — User I/O pin |
| Pino 152 | I/O — User I/O pin |
| Pino 153 | I/O — User I/O pin |
| Pino 154 | I/O — User I/O pin |
| Pino 155 | I/O — User I/O pin |
| Pino 156 | I/O — User I/O pin |
| Pino 157 | I/O — User I/O pin |
| Pino 158 | I/O — User I/O pin |
| Pino 159 | I/O — User I/O pin |
| Pino 160 | GND — Ground |
| Pino 161 | I/O — User I/O pin |
| Pino 162 | I/O — User I/O pin |
| Pino 163 | I/O — User I/O pin |
| Pino 164 | I/O — User I/O pin |
| Pino 165 | I/O — User I/O pin |
| Pino 166 | I/O — User I/O pin |
| Pino 167 | I/O — User I/O pin |
| Pino 168 | I/O — User I/O pin |
| Pino 169 | I/O — User I/O pin |
| Pino 170 | I/O — User I/O pin |
| Pino 171 | VCCINT — 5V core supply |
| Pino 172 | I/O — User I/O pin |
| Pino 173 | I/O — User I/O pin |
| Pino 174 | I/O — User I/O pin |
| Pino 175 | I/O — User I/O pin |
| Pino 176 | I/O — User I/O pin |
| Pino 177 | I/O — User I/O pin |
| Pino 178 | I/O — User I/O pin |
| Pino 179 | I/O — User I/O pin |
| Pino 180 | I/O — User I/O pin |
| Pino 181 | VCCIO — I/O supply (3.3V or 5V) |
| Pino 182 | I/O — User I/O pin |
| Pino 183 | I/O — User I/O pin |
| Pino 184 | I/O — User I/O pin |
| Pino 185 | I/O — User I/O pin |
| Pino 186 | I/O — User I/O pin |
| Pino 187 | I/O — User I/O pin |
| Pino 188 | I/O — User I/O pin |
| Pino 189 | I/O — User I/O pin |
| Pino 190 | I/O — User I/O pin |
| Pino 191 | I/O — User I/O pin |
| Pino 192 | GND — Ground |
| Pino 193 | I/O — User I/O pin |
| Pino 194 | I/O — User I/O pin |
| Pino 195 | I/O — User I/O pin |
| Pino 196 | I/O — User I/O pin |
| Pino 197 | I/O — User I/O pin |
| Pino 198 | I/O — User I/O pin |
| Pino 199 | I/O — User I/O pin |
| Pino 200 | I/O — User I/O pin |
| Pino 201 | I/O — User I/O pin |
| Pino 202 | I/O — User I/O pin |
| Pino 203 | VCCINT — 5V core supply |
| Pino 204 | I/O — User I/O pin |
| Pino 205 | I/O — User I/O pin |
| Pino 206 | I/O — User I/O pin |
| Pino 207 | I/O — User I/O pin |
| Pino 208 | I/O — User I/O pin |
Aplicações típicas
EPF8820ARC-4 é adequado para 6 aplicaçãos: Telecommunications Line Card Glue Logic, Industrial Control and PLC Logic Integration, ASIC Prototyping and Pre-Silicon Validation, Legacy Bus-Interface Bridge and Protocol Converter, Medical Imaging Front-End Pre-Processing, Test and Measurement Instrumentation Backplane.
Telecommunications Line Card Glue Logic
The EPF8820ARC-4's 672 logic elements and 152 user I/O pins make it a strong fit for telecom line-card glue logic where multiple bus interfaces, framing logic, and protocol state machines must be integrated on a single board. The 5V VCCINT core and 3.3V/5V tolerant I/O let the FPGA bridge legacy TTL bus controllers and 3.3V framers without external level shifters, while the FLEX 8000 EAB blocks implement small FIFOs and lookup tables for channel provisioning. Compared with a discrete 74-series glue-logic implementation, the EPF8820 collapses dozens of packages onto one device, reducing board area and easing last-minute design changes during carrier qualification.
Recomendado
Industrial Control and PLC Logic Integration
In PLC and industrial-control platforms, the EPF8820ARC-4 integrates encoder counters, PWM generation, Modbus / Profibus framing, and safety logic in one programmable device. Its 152 I/Os connect to opto-isolated 24V field I/O via external buffers, while the 5V core tolerates wide industrial supply rails after regulation. The unlimited SRAM re-programmability allows firmware updates over the factory network, supporting IEC 61131-3 style logic reconfiguration. Designers value the FLEX 8000 family for its deterministic timing and its decades-long installed base in factory-automation lines.
Recomendado
ASIC Prototyping and Pre-Silicon Validation
The EPF8820ARC-4 has been widely used to prototype ASICs before tape-out, particularly for medium-density designs in the 5K-10K gate range. Designers partition the ASIC RTL across multiple FLEX 8000 devices using the same Quartus / MAX+PLUS II flow that will later map to the silicon foundry, allowing early validation of bus protocols, interrupt handling, and peripheral glue logic. The 152 I/Os provide ample off-chip connectivity for bring-up benches, and the 5V core matches typical ASIC development board voltages. Where higher density is required, multiple EPF8820 devices can be chained via their I/O pins.
Recomendado
Legacy Bus-Interface Bridge and Protocol Converter
The EPF8820ARC-4 excels at legacy bus bridging, such as ISA-to-PCI bridges, VME bus controllers, and proprietary backplane converters used in long-lifecycle military and aerospace platforms. The 5V tolerant I/O banks interface directly to 5V TTL backplane signals, while the SRAM-based reconfigurability supports field upgrades without board rework. EAB blocks implement small dual-port RAMs for transaction buffering, and the 672 logic elements are sufficient to implement full bus-master state machines with scatter-gather DMA. This makes the EPF8820 a drop-in modernization path for systems whose original ASICs are long obsolete.
Recomendado
Medical Imaging Front-End Pre-Processing
In ultrasound and patient-monitoring front-end boards, the EPF8820ARC-4 performs real-time pre-processing such as beamforming channel selection, beam summation gating, and ADC-to-DRAM data routing. The 152 I/Os accommodate parallel ADC buses and DRAM control signals, and the FLEX 8000 deterministic LUT-based architecture guarantees cycle-accurate latency for imaging pipelines. Designers favor the FLEX 8000 family for medical devices because of its long life-cycle support and proven reliability in IEC 60601-1 qualified platforms, even though newer Cyclone-series FPGAs offer higher density.
Recomendado
Test and Measurement Instrumentation Backplane
The EPF8820ARC-4 is used in bench-top instruments such as logic analyzers, protocol testers, and modular data-acquisition chassis where its 152 I/Os serve as reconfigurable backplane controllers. Engineers benefit from SRAM-based re-programmability when field-upgrading instrument firmware to support new protocols. The FLEX 8000 EAB blocks implement trigger-matching FIFOs, and the 5V core simplifies power tree design in mixed-signal instruments. Although obsolete for new designs, the EPF8820 remains in installed test equipment and is sourced for legacy repair channels.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para EPF8820ARC-4 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | EPF8820AQC208-4 | EPF8820AQC208-3 | EPF8820ABC225-4 | EPF8636ARC208-4 |
|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera |
| Package | BFQFP-208 | PQFP-208 | PQFP-208 | BGA-225 | BFQFP-208 - same |
| Logic Elements | 672 | 672 | 672 | 672 | 504 |
| Speed Grade | -4 | -4 | -3 (slower) | -4 | -4 |
| Core Voltage | 5 V | 5 V | 5 V | 5 V | 5 V |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Principais diferenciais
- Highest logic density in the FLEX 8000 family (vs EPF8636ARC208-4)
- 152 user I/O pins for high fan-out glue logic (vs EPF8282ALC84-3)
- BFQFP-208 package supports long-lifecycle programs (vs EPF8820ABC225-4)
Notas de projeto
The EPF8820ARC-4 requires a stable 5V VCCINT with multiple bulk capacitors (10 uF tantalum + 0.1 uF ceramic per pin pair) on every VCCINT and VCCIO pin. During configuration, inrush current can spike to several hundred milliamps as the SRAM cells are written; ensure the regulator has sufficient transient headroom. Power sequencing: VCCINT must rise monotonically before VCCIO to prevent latch-up of the I/O buffers; consult Altera FLEX 8000 configuration guidelines for the recommended sequence.
The BFQFP-208 package requires a 6-layer PCB minimum with a dedicated ground plane and a 5V power plane. Decouple each VCCINT pin individually with a 0.1 uF X7R ceramic placed within 5 mm of the pin, and add a shared 10 uF tantalum per side of the package. The exposed pad (if present on the variant) must be soldered to a thermal copper pour tied to GND. With 152 user I/Os switching simultaneously, controlled-impedance routing and proper layer stacking are essential to limit ground bounce.
Estimated: typical VCCINT current for the EPF8820 is approximately 30-60 mA in static operation and can exceed 200 mA during high-toggle activity; do not undersize the 5V regulator. Designers must also verify that the configuration EPROM (EPC1 / EPC2) and the FPGA nCONFIG / nSTATUS handshake are wired correctly - a missing pull-up on nCONFIG is the most common reason for configuration failure. Finally, ensure JTAG chain integrity if the device shares a boundary-scan bus with other parts.
Informações de conformidade
Compliance status not present in verified web data; FLEX 8000 family predates widespread RoHS adoption. Mark as [DATA_NEEDED] for production qualification.
