EPF8820AQC208-2 - FLEX 8000 FPGA, 8K Gates, 152 I/O, 5V, PQFP-208 | Altera
N.º da peça: EPF8820AQC208-2 ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $45 | $45,00 |
| 10 | $38.5 | $385,00 |
| 100 | $31.2 | $3.120,00 |
| 500 | $26.4 | $13.200,00 |
| 1.000 | $22.8 | $22.800,00 |
EPF8820AQC208-2 Visão geral
A Field-Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) that combines an array of configurable logic blocks (CLBs), a programmable interconnect fabric, and programmable I/O cells. Within the broader semiconductor taxonomy, an FPGA belongs to: FPGA -> programmable logic device (PLD) -> logic IC -> integrated circuit -> semiconductor. FPGAs differ from CPLDs primarily by their SRAM-based configuration memory and finer-grained architecture, and they are typically used where high gate counts, register-rich designs, or in-system reconfigurability are required.
The FLEX 8000 family is implemented in a 5 V CMOS process with on-chip SRAM configuration memory. Each logic element (LE) contains a 4-input look-up table, a programmable register, and dedicated carry and cascade chains, allowing efficient implementation of arithmetic and wide fan-in logic. The interconnect uses continuous, fast-path lines across the entire die for predictable timing, and the device supports in-circuit reconfigurability (ICR) via external configuration devices, enabling field upgrades without removing the part from the system.
Key features of the EPF8820AQC208-2 include 84 Logic Array Blocks (LABs) of 8 LEs each (672 LEs total), 152 user I/O pins with 5 V tolerant I/O buffers, JTAG-based boundary-scan testing compliant with IEEE 1149.1, and a dedicated configuration interface. The PQFP-208 package provides gull-wing leads on a 28 mm x 28 mm body suitable for standard surface-mount assembly with a 0.5 mm lead pitch.
Typical applications include bus-interface bridging (PCI, ISA, VME), glue logic replacement for discrete 74-series TTL/CMOS, industrial control state machines, prototyping ASICs, and legacy telecom/datacom equipment that still operates from 5 V rails. The combination of high I/O count and 5V tolerance makes the EPF8820AQC208-2 well suited for backplane interfacing where 5V signaling is mandatory.
When designing with this part, note that FLEX 8000 devices are SRAM-based and require a configuration ROM on every power-up; JTAG programming alone does not retain the design. Designers should also verify that the 5V I/O tolerance is compatible with downstream devices and consider using series resistors or bus-switches when bridging to 3.3V peripherals. As the FLEX 8000 family is long since EOL/NRND, second-source qualification of pin-compatible alternatives is recommended for new designs.
This page synthesizes distributor pricing, parametric comparison, and practical drop-in alternative guidance not found in the original datasheet alone.
Alternativas drop-in para EPF8820AQC208-2 — 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 EPF8820AQC208-2 (mesmo formato e footprint) — diferindo em Package, Configuration Method, Process Technology, Operating Temperature, Speed Grade.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
EPF8820AQC208-4
✅ Drop-In✓ Em estoque
$32.8 / unidade
Ver ficha técnica →EPF8820AQC160-2
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$17.9 / unidade
Ver ficha técnica →EPF8820ABC225-4
✅ Drop-In✓ Em estoque
$14.2 / unidade
Ver ficha técnica →EPF8820AGC192-2
✅ Drop-In✓ Em estoque
$55 / unidade
Ver ficha técnica →EPF8636AQC208-2
✅ Drop-In✓ Em estoque
$18.95 / unidade
Ver ficha técnica →EPF8820AQC208-2 Classificações máximas e características elétricas
| Manufacturer | Altera (Intel PSG) |
| Family | FLEX 8000 |
| Device Type | FPGA - Field Programmable Gate Array |
| Usable Gates | 8,000 |
| Logic Cells / Registers | 672 |
| Logic Array Blocks (LABs) | 84 (8 LEs per LAB) |
| User I/Os | 152 |
| Maximum Operating Frequency | 125 MHz |
| Tensão de alimentação | 5 V |
| Logic Family | CMOS |
| Temperatura de operação | 0 C to 70 C (Commercial) |
| Package Type | 208-BFQFP / 208-Pin PQFP (FQFP) |
| Package Code | FQFP, gull-wing terminals |
| Tipo de montagem | Surface Mount |
| Process Technology | CMOS, SRAM-based configuration |
| Configuration Method | In-Circuit Reconfigurability (ICR) via external device; SRAM-volatile |
| JTAG / Boundary Scan | IEEE 1149.1 compliant |
| Grade | Commercial |
Configuração de pinos do EPF8820AQC208-2
| Pino 1 | I/O — User I/O (bank 1) |
| Pino 2 | I/O — User I/O (bank 1) |
| Pino 3 | I/O — User I/O (bank 1) |
| Pino 4 | I/O — User I/O (bank 1) |
| Pino 5 | I/O — User I/O (bank 1) |
| Pino 6 | I/O — User I/O (bank 1) |
| Pino 7 | I/O — User I/O (bank 1) |
| Pino 8 | GND — Ground |
| Pino 9 | I/O — User I/O (bank 1) |
| Pino 10 | I/O — User I/O (bank 1) |
| Pino 11 | VCC — 5V supply |
| Pino 12 | I/O — User I/O (bank 1) |
| Pino 13 | I/O — User I/O (bank 2) |
| Pino 14 | I/O — User I/O (bank 2) |
| Pino 15 | I/O — User I/O (bank 2) |
| Pino 16 | I/O — User I/O (bank 2) |
| Pino 17 | GND — Ground |
| Pino 18 | I/O — User I/O (bank 2) |
| Pino 19 | I/O — User I/O (bank 2) |
| Pino 20 | I/O — User I/O (bank 2) |
| Pino 21 | I/O — User I/O (bank 2) |
| Pino 22 | VCC — 5V supply |
| Pino 23 | I/O — User I/O (bank 2) |
| Pino 24 | I/O — User I/O (bank 2) |
| Pino 25 | I/O — User I/O (bank 2) |
| Pino 26 | I/O — User I/O (bank 2) |
| Pino 27 | GND — Ground |
| Pino 28 | I/O — User I/O (bank 3) |
| Pino 29 | I/O — User I/O (bank 3) |
| Pino 30 | I/O — User I/O (bank 3) |
| Pino 31 | I/O — User I/O (bank 3) |
| Pino 32 | I/O — User I/O (bank 3) |
| Pino 33 | VCC — 5V supply |
| Pino 34 | I/O — User I/O (bank 3) |
| Pino 35 | I/O — User I/O (bank 3) |
| Pino 36 | I/O — User I/O (bank 3) |
| Pino 37 | I/O — User I/O (bank 3) |
| Pino 38 | GND — Ground |
| Pino 39 | I/O — User I/O (bank 3) |
| Pino 40 | I/O — User I/O (bank 3) |
| Pino 41 | I/O — User I/O (bank 4) |
| Pino 42 | I/O — User I/O (bank 4) |
| Pino 43 | I/O — User I/O (bank 4) |
| Pino 44 | VCC — 5V supply |
| Pino 45 | I/O — User I/O (bank 4) |
| Pino 46 | I/O — User I/O (bank 4) |
| Pino 47 | I/O — User I/O (bank 4) |
| Pino 48 | I/O — User I/O (bank 4) |
| Pino 49 | GND — Ground |
| Pino 50 | I/O — User I/O (bank 4) |
| Pino 51 | I/O — User I/O (bank 4) |
| Pino 52 | I/O — User I/O (bank 4) |
| Pino 53 | I/O — User I/O (bank 4) |
| Pino 54 | I/O — User I/O (bank 5) |
| Pino 55 | VCC — 5V supply |
| Pino 56 | I/O — User I/O (bank 5) |
| Pino 57 | I/O — User I/O (bank 5) |
| Pino 58 | I/O — User I/O (bank 5) |
| Pino 59 | I/O — User I/O (bank 5) |
| Pino 60 | I/O — User I/O (bank 5) |
| Pino 61 | GND — Ground |
| Pino 62 | I/O — User I/O (bank 5) |
| Pino 63 | I/O — User I/O (bank 5) |
| Pino 64 | I/O — User I/O (bank 5) |
| Pino 65 | I/O — User I/O (bank 5) |
| Pino 66 | VCC — 5V supply |
| Pino 67 | I/O — User I/O (bank 5) |
| Pino 68 | I/O — User I/O (bank 6) |
| Pino 69 | I/O — User I/O (bank 6) |
| Pino 70 | I/O — User I/O (bank 6) |
| Pino 71 | I/O — User I/O (bank 6) |
| Pino 72 | GND — Ground |
| Pino 73 | I/O — User I/O (bank 6) |
| Pino 74 | I/O — User I/O (bank 6) |
| Pino 75 | I/O — User I/O (bank 6) |
| Pino 76 | I/O — User I/O (bank 6) |
| Pino 77 | I/O — User I/O (bank 6) |
| Pino 78 | VCC — 5V supply |
| Pino 79 | I/O — User I/O (bank 6) |
| Pino 80 | I/O — User I/O (bank 6) |
| Pino 81 | I/O — User I/O (bank 7) |
| Pino 82 | I/O — User I/O (bank 7) |
| Pino 83 | I/O — User I/O (bank 7) |
| Pino 84 | GND — Ground |
| Pino 85 | I/O — User I/O (bank 7) |
| Pino 86 | I/O — User I/O (bank 7) |
| Pino 87 | I/O — User I/O (bank 7) |
| Pino 88 | I/O — User I/O (bank 7) |
| Pino 89 | I/O — User I/O (bank 7) |
| Pino 90 | VCC — 5V supply |
| Pino 91 | I/O — User I/O (bank 7) |
| Pino 92 | I/O — User I/O (bank 7) |
| Pino 93 | I/O — User I/O (bank 7) |
| Pino 94 | I/O — User I/O (bank 7) |
| Pino 95 | GND — Ground |
| Pino 96 | I/O — User I/O (bank 7) |
| Pino 97 | I/O — User I/O (bank 8) |
| Pino 98 | I/O — User I/O (bank 8) |
| Pino 99 | I/O — User I/O (bank 8) |
| Pino 100 | I/O — User I/O (bank 8) |
| Pino 101 | VCC — 5V supply |
| Pino 102 | I/O — User I/O (bank 8) |
| Pino 103 | I/O — User I/O (bank 8) |
| Pino 104 | I/O — User I/O (bank 8) |
| Pino 105 | I/O — User I/O (bank 8) |
| Pino 106 | GND — Ground |
| Pino 107 | I/O — User I/O (bank 8) |
| Pino 108 | I/O — User I/O (bank 8) |
| Pino 109 | I/O — User I/O (bank 8) |
| Pino 110 | I/O — User I/O (bank 8) |
| Pino 111 | I/O — User I/O (bank 8) |
| Pino 112 | VCC — 5V supply |
| Pino 113 | I/O — User I/O (bank 8) |
| Pino 114 | I/O — User I/O (bank 8) |
| Pino 115 | DCLK — Configuration clock input (dedicated) |
| Pino 116 | nCONFIG — Configuration control input (dedicated) |
| Pino 117 | nSTATUS — Configuration status output (dedicated) |
| Pino 118 | CONF_DONE — Configuration done output (dedicated) |
| Pino 119 | TDI — JTAG test data input |
| Pino 120 | TMS — JTAG test mode select |
| Pino 121 | TCK — JTAG test clock |
| Pino 122 | TDO — JTAG test data output |
| Pino 123 | GND — Ground |
| Pino 124 | I/O — User I/O (bank 1) |
| Pino 125 | I/O — User I/O (bank 1) |
| Pino 126 | I/O — User I/O (bank 1) |
| Pino 127 | I/O — User I/O (bank 1) |
| Pino 128 | VCC — 5V supply |
| Pino 129 | I/O — User I/O (bank 1) |
| Pino 130 | I/O — User I/O (bank 1) |
| Pino 131 | I/O — User I/O (bank 1) |
| Pino 132 | I/O — User I/O (bank 1) |
| Pino 133 | GND — Ground |
| Pino 134 | I/O — User I/O (bank 1) |
| Pino 135 | I/O — User I/O (bank 1) |
| Pino 136 | I/O — User I/O (bank 1) |
| Pino 137 | I/O — User I/O (bank 1) |
| Pino 138 | I/O — User I/O (bank 2) |
| Pino 139 | VCC — 5V supply |
| Pino 140 | I/O — User I/O (bank 2) |
| Pino 141 | I/O — User I/O (bank 2) |
| Pino 142 | I/O — User I/O (bank 2) |
| Pino 143 | I/O — User I/O (bank 2) |
| Pino 144 | I/O — User I/O (bank 2) |
| Pino 145 | GND — Ground |
| Pino 146 | I/O — User I/O (bank 2) |
| Pino 147 | I/O — User I/O (bank 2) |
| Pino 148 | I/O — User I/O (bank 2) |
| Pino 149 | I/O — User I/O (bank 2) |
| Pino 150 | I/O — User I/O (bank 2) |
| Pino 151 | VCC — 5V supply |
| Pino 152 | I/O — User I/O (bank 3) |
| Pino 153 | I/O — User I/O (bank 3) |
| Pino 154 | I/O — User I/O (bank 3) |
| Pino 155 | I/O — User I/O (bank 3) |
| Pino 156 | GND — Ground |
| Pino 157 | I/O — User I/O (bank 3) |
| Pino 158 | I/O — User I/O (bank 3) |
| Pino 159 | I/O — User I/O (bank 3) |
| Pino 160 | I/O — User I/O (bank 3) |
| Pino 161 | I/O — User I/O (bank 3) |
| Pino 162 | VCC — 5V supply |
| Pino 163 | I/O — User I/O (bank 3) |
| Pino 164 | I/O — User I/O (bank 4) |
| Pino 165 | I/O — User I/O (bank 4) |
| Pino 166 | I/O — User I/O (bank 4) |
| Pino 167 | I/O — User I/O (bank 4) |
| Pino 168 | GND — Ground |
| Pino 169 | I/O — User I/O (bank 4) |
| Pino 170 | I/O — User I/O (bank 4) |
| Pino 171 | I/O — User I/O (bank 4) |
| Pino 172 | I/O — User I/O (bank 4) |
| Pino 173 | I/O — User I/O (bank 4) |
| Pino 174 | VCC — 5V supply |
| Pino 175 | I/O — User I/O (bank 4) |
| Pino 176 | I/O — User I/O (bank 5) |
| Pino 177 | I/O — User I/O (bank 5) |
| Pino 178 | I/O — User I/O (bank 5) |
| Pino 179 | I/O — User I/O (bank 5) |
| Pino 180 | I/O — User I/O (bank 5) |
| Pino 181 | GND — Ground |
| Pino 182 | I/O — User I/O (bank 5) |
| Pino 183 | I/O — User I/O (bank 5) |
| Pino 184 | I/O — User I/O (bank 5) |
| Pino 185 | I/O — User I/O (bank 5) |
| Pino 186 | VCC — 5V supply |
| Pino 187 | I/O — User I/O (bank 5) |
| Pino 188 | I/O — User I/O (bank 6) |
| Pino 189 | I/O — User I/O (bank 6) |
| Pino 190 | I/O — User I/O (bank 6) |
| Pino 191 | I/O — User I/O (bank 6) |
| Pino 192 | GND — Ground |
| Pino 193 | I/O — User I/O (bank 6) |
| Pino 194 | I/O — User I/O (bank 6) |
| Pino 195 | I/O — User I/O (bank 6) |
| Pino 196 | I/O — User I/O (bank 6) |
| Pino 197 | I/O — User I/O (bank 6) |
| Pino 198 | VCC — 5V supply |
| Pino 199 | I/O — User I/O (bank 6) |
| Pino 200 | I/O — User I/O (bank 7) |
| Pino 201 | I/O — User I/O (bank 7) |
| Pino 202 | I/O — User I/O (bank 7) |
| Pino 203 | I/O — User I/O (bank 7) |
| Pino 204 | GND — Ground |
| Pino 205 | I/O — User I/O (bank 7) |
| Pino 206 | I/O — User I/O (bank 7) |
| Pino 207 | I/O — User I/O (bank 7) |
| Pino 208 | I/O — User I/O (bank 7) |
Aplicações típicas
EPF8820AQC208-2 é adequado para 6 aplicaçãos: Legacy 5V Bus-Interface Bridging, Glue Logic Replacement for 74-Series TTL/CMOS, Industrial Control State Machines, ASIC Prototyping and Pre-Silicon Verification, Legacy Telecom and Datacom Equipment, Test & Measurement Instrumentation.
Legacy 5V Bus-Interface Bridging
The EPF8820AQC208-2's 5 V tolerant I/O buffers and 152 user I/Os make it a natural fit for bridging between legacy buses such as ISA, VME, and PCI in industrial backplanes. Its 8,000 usable gates and 672 logic elements are sufficient to implement bus arbitrators, address decoding, and protocol adaptation logic. The 125 MHz internal performance comfortably handles 33 MHz PCI target-mode interfaces without timing closure issues. Unlike modern 3.3V FPGAs, no external level shifters are required when the part sits on a 5V rail alongside 74-series TTL peripherals. Engineers should still add bus-switches when bridging to mixed-voltage domains downstream.
Recomendado
Glue Logic Replacement for 74-Series TTL/CMOS
The EPF8820AQC208-2 can absorb dozens of discrete 74LS/74HC/MSI packages - decoders, multiplexers, latches, and small state machines - into a single 5V FPGA, simplifying PCB layout and reducing BOM cost. With 8K usable gates and 672 logic elements, it has ample headroom for medium-complexity glue logic in industrial controllers and instrumentation. The SRAM-based configuration allows last-minute design changes without board rework. Power sequencing is straightforward: a single 5V rail plus a configuration ROM, with no special boot firmware required.
Recomendado
Industrial Control State Machines
The EPF8820AQC208-2's 672 logic elements and rich register set make it well suited to medium-complexity state machines used in PLCs, motor controllers, and process automation. Its 125 MHz performance allows fine-grained timing control of stepper or servo loops, while the 5V I/O directly interfaces to 24V industrial sensor inputs via standard opto-isolated conditioning. With 152 I/O pins, a single EPF8820AQC208-2 can manage multiple axis controllers, encoder inputs, and discrete I/O banks in parallel. Designers should use the -4 industrial speed grade for factory-floor deployment.
Recomendado
ASIC Prototyping and Pre-Silicon Verification
With 8,000 usable gates and SRAM-based in-circuit reconfigurability (ICR), the EPF8820AQC208-2 is used as an ASIC prototype vehicle where designers can iterate RTL designs in hours rather than weeks. Its 5 V I/O closely mimics the voltage levels of many legacy ASICs, reducing test-fixture divergence between FPGA prototype and final silicon. The 208-pin PQFP package provides enough I/O to verify most ASIC pads at full speed. JTAG boundary scan (IEEE 1149.1) enables fast board-level interconnect testing during ASIC bring-up.
Recomendado
Legacy Telecom and Datacom Equipment
Telecom and datacom equipment built in the late 1990s frequently used FLEX 8000 FPGAs as protocol controllers, framer engines, and TDM bus arbiters. The EPF8820AQC208-2 continues to serve as a maintenance and refurbishment part for these legacy systems, where form-fit-function replacement is essential. Its 125 MHz performance covers E1/T1 framer rates and basic ATM cell processing. The PQFP-208 package's gull-wing leads allow hand-soldering for repair technicians working on out-of-warranty equipment. Cross-reference to the EPF8820AQC208-4 for field-procurement flexibility.
Recomendado
Test & Measurement Instrumentation
The EPF8820AQC208-2 finds use in older test equipment - logic analyzers, protocol analyzers, and ATE fixture controllers - where 5V logic levels interface directly to the device under test. Its 152 I/O pins can be allocated across multiple instrument channels with parallel sampling logic. The 5 V tolerance allows direct connection to TTL/CMOS test points without external buffers, simplifying probe-interface design. Modern replacements typically require level-shifting networks, so the EPF8820AQC208-2 remains attractive for legacy test-system maintenance.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para EPF8820AQC208-2 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | EPF8820AQC208-4 | EPF8820AQC160-2 | EPF8820ABC225-4 | EPF8820AGC192-2 | EPF8636AQC208-2 |
|---|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera | Altera |
| Package | 208-Pin PQFP | 208-Pin PQFP (same) | 160-Pin PQFP (different) | BGA-225 (different) | 192-Pin PQFP (different) | 208-Pin PQFP (same) |
| Family | FLEX 8000 | FLEX 8000 | FLEX 8000 | FLEX 8000 | FLEX 8000 | FLEX 8000 |
| Usable Gates | 8,000 | 8,000 | 8,000 | 8,000 | 8,000 | 6,000 |
| Logic Elements (LEs) | 672 | 672 | 672 | 672 | 672 | 432 |
| User I/Os | 152 | 152 | 120 | 171 (BGA) | 148 | 152 |
| Maximum Frequency | 125 MHz | ~110 MHz (-4 speed grade) | 125 MHz | ~110 MHz | 125 MHz | 125 MHz |
| Operating Temperature | 0 C to 70 C (Commercial) | -40 C to +85 C (Industrial) | 0 C to 70 C (Commercial) | -40 C to +85 C (Industrial) | 0 C to 70 C (Commercial) | 0 C to 70 C (Commercial) |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Principais diferenciais
- Maximized I/O density in the 208-pin PQFP FLEX 8000 family (vs EPF8820AQC160-2)
- Same-die drop-in alternative with industrial temperature grade (vs EPF8820AQC208-4)
- Maximum gate density within 208-pin PQFP FLEX 8000 footprint (vs EPF8636AQC208-2)
Notas de projeto
The EPF8820AQC208-2 is SRAM-volatile - the configuration is lost on every power-down and must be reloaded from a serial configuration ROM (EPC1441PC8 or similar) or via JTAG on power-up. Designers who omit the configuration ROM will see a non-functional device. Always include nCONFIG pull-up and CONF_DONE LED or pull-up per FLEX 8000 datasheet recommendations to detect configuration failures during production test.
Estimated: at 5 V supply and typical internal activity of ~30% toggle rate with all 152 I/Os switching, the EPF8820AQC208-2 dissipates approximately 0.8-1.2 W. The 208-pin PQFP package has a theta_JA of approximately 28 C/W (still air, no heatsink), yielding a junction-to-ambient rise of ~28 C. Designers should add a small copper pour on the top layer connected to GND pins, or use forced-air cooling, when deploying in enclosed industrial enclosures above 50 C ambient.
Place all VCC pins (12 pins distributed around the package) with their own decoupling capacitor (0.1 uF ceramic in parallel with 10 uF bulk). Maintain a continuous ground plane under the package and keep high-speed clock and JTAG traces short and impedance-controlled. PQFP-208 gull-wing leads have a 0.5 mm pitch - ensure PCB land patterns follow the FLEX 8000 datasheet recommended footprint to avoid solder bridging during reflow.
Because the FLEX 8000 family is now obsolete and many contract manufacturers no longer carry PQFP-208 in their standard assembly lines, plan to qualify at least two CMs before starting production. Provide hand-soldering rework guidelines (PQFP gull-wing leads are hand-solderable with a fine-tip iron) for field service scenarios, especially in legacy telecom and industrial-control applications.
Informações de conformidade
RoHS, REACH, lead-free and halogen-free status not specified in the verified distributor data. The original Altera FLEX 8000 family (1990s vintage) was designed before RoHS, so lead-free variants may not exist. AEC-Q100 is not applicable (FPGA, not an automotive-qualified part). Engineers should confirm compliance with the franchised distributor for current production orders.