EPF8820AQC160-3 - 8K Gates FLEX 8000 FPGA, 120 I/O, 5V | Intel
Référence : EPF8820AQC160-3 ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $38.5 | $38,50 |
| 10 | $32.75 | $327,50 |
| 100 | $26.4 | $2 640,00 |
| 500 | $21.1 | $10 550,00 |
| 1 000 | $17.95 | $17 950,00 |
EPF8820AQC160-3 Présentation
A field programmable gate array (FPGA) is a semiconductor integrated circuit that can be configured by the customer after manufacturing to implement arbitrary digital logic. Architecturally an FPGA sits above simple PLDs (PALs, GALs) and below ASICs in the logic-density hierarchy: it offers far more gates than a CPLD while remaining reprogrammable, making it a hybrid between programmable logic and custom silicon. FPGAs like the FLEX 8000 family integrate programmable logic elements (LEs), embedded interconnect, and configurable I/O cells on a single die, and they are widely used for prototyping, low-volume production, and design re-spin avoidance.
Key features of the EPF8820AQC160-3 include 84 Logic Array Blocks (LABs), 1,500 registers, 282 to 1,500 flip-flops, and built-in PCI SIG-compliant bus interface support. Each LE contains a 4-input look-up table, a programmable flip-flop, and dedicated carry and cascade paths that accelerate arithmetic and wide fan-in functions. The device integrates JTAG boundary-scan test circuitry (IEEE 1149.1) for board-level test access.
From an architectural perspective, the FLEX 8000 family uses a continuous, row-and-column interconnect structure with FastTrack Interconnect channels that provide predictable timing across the device. The 5 V tolerant I/O pins drive 120 external signals, sufficient for 32-bit processor buses plus memory and peripheral interfaces. The -3 speed grade delivers internal toggle rates suitable for 50-66 MHz PCI bus designs.
Typical applications include PCI Local Bus interface bridges, peripheral controllers for embedded systems, industrial glue logic, prototyping for ASICs, and high-density state-machine replacement. The wide supply tolerance and CMOS process make it compatible with TTL-level peripherals.
When designing with the EPF8820AQC160-3, ensure your board-level decoupling follows Altera's reference design and that configuration is supplied via an Altera EPC configuration EPROM or JTAG. Avoid using this legacy part in new 3.3 V-only designs; the 5 V supply is a defining constraint.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes for the EPF8820AQC160-3 not found in the manufacturer datasheet alone.
Alternatives de remplacement direct pour EPF8820AQC160-3 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec EPF8820AQC160-3 (même facteur de forme et même empreinte) — différant par Package, Usable Gates, Operating Temperature, Process Technology, User I/Os.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
EPF8820AQC160-2
✅ Remplacement direct✓ En stock
$17.9 / unité
Voir la fiche technique →EPF8636AQC160-3
✅ Remplacement direct✓ En stock
$9.95 / unité
Voir la fiche technique →EPF8452AQC160-3
✅ Remplacement direct✓ En stock
$13.85 / unité
Voir la fiche technique →EPF8820AQC160-3 Valeurs maximales et caractéristiques électriques
| Family | FLEX 8000 |
| Usable Gates | 8,000 |
| Logic Elements / Cells | 672 |
| Logic Array Blocks (LABs) | 84 |
| User I/Os | 120 (per Mouser/DigiKey) |
| User I/Os (alt source) | 152 (per digchip BGA-225 variant listing) |
| Registers | 282 to 1,500 |
| Process Technology | 0.42 um CMOS |
| Tension d'alimentation | 5 V |
| Speed Grade | -3 |
| Maximum Frequency | 125 MHz |
| Boîtier | 160-BQFP (PQFP) |
| Température de fonctionnement | 0C to +70C (Commercial) |
| Configuration | In-Circuit Reconfigurable (ICR) via EPC devices or JTAG |
| Bus Compliance | PCI SIG PCI Local Bus |
| Type de montage | Surface Mount |
Configuration des broches de EPF8820AQC160-3
| Broche 1 | I/O — User I/O pin (bank-dependent) |
| Broche 2 | I/O — User I/O pin |
| Broche 3 | I/O — User I/O pin |
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| Broche 19 | I/O — User I/O pin |
| Broche 20 | I/O — User I/O pin |
| Broche 21 | VCC — 5 V supply |
| Broche 22 | I/O — User I/O pin |
| Broche 23 | I/O — User I/O pin |
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| Broche 40 | I/O — User I/O pin |
| Broche 41 | GND — Ground |
| Broche 42 | I/O — User I/O pin |
| Broche 43 | I/O — User I/O pin |
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| Broche 58 | I/O — User I/O pin |
| Broche 59 | I/O — User I/O pin |
| Broche 60 | I/O — User I/O pin |
| Broche 61 | VCC — 5 V supply |
| Broche 62 | I/O — User I/O pin |
| Broche 63 | I/O — User I/O pin |
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| Broche 78 | I/O — User I/O pin |
| Broche 79 | I/O — User I/O pin |
| Broche 80 | I/O — User I/O pin |
| Broche 81 | GND — Ground |
| Broche 82 | I/O — User I/O pin |
| Broche 83 | I/O — User I/O pin |
| Broche 84 | I/O — User I/O pin |
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| Broche 98 | I/O — User I/O pin |
| Broche 99 | I/O — User I/O pin |
| Broche 100 | I/O — User I/O pin |
| Broche 101 | VCC — 5 V supply |
| Broche 102 | I/O — User I/O pin |
| Broche 103 | I/O — User I/O pin |
| Broche 104 | I/O — User I/O pin |
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| Broche 118 | I/O — User I/O pin |
| Broche 119 | I/O — User I/O pin |
| Broche 120 | I/O — User I/O pin |
| Broche 121 | GND — Ground |
| Broche 122 | I/O — User I/O pin |
| Broche 123 | I/O — User I/O pin |
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| Broche 138 | I/O — User I/O pin |
| Broche 139 | I/O — User I/O pin |
| Broche 140 | I/O — User I/O pin |
| Broche 141 | VCC — 5 V supply |
| Broche 142 | I/O — User I/O pin |
| Broche 143 | I/O — User I/O pin |
| Broche 144 | I/O — User I/O pin |
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| Broche 154 | I/O — User I/O pin |
| Broche 155 | I/O — User I/O pin |
| Broche 156 | I/O — User I/O pin |
| Broche 157 | I/O — User I/O pin |
| Broche 158 | I/O — User I/O pin |
| Broche 159 | I/O — User I/O pin |
| Broche 160 | I/O — User I/O pin |
Applications typiques
EPF8820AQC160-3 convient pour 6 applications: PCI Local Bus Bridge / Peripheral Controller, Embedded Glue Logic / System Integration, ASIC Prototyping and Design Validation, Industrial Control and Automation Backplanes, Legacy Telecom and Datacom Adapter Cards, High-Density State-Machine Replacement.
PCI Local Bus Bridge / Peripheral Controller
The EPF8820AQC160-3's 8,000 usable gates, 672 logic cells, and full PCI SIG PCI Local Bus compliance make it well-suited for 32-bit/33 MHz PCI peripheral and bridge designs. The 120 user I/Os comfortably accommodate a 32-bit address/data bus plus control signals, parity, and interrupt lines. Place the FPGA between a host CPU and a downstream peripheral bus; the integrated PCI-compliant I/O drivers meet the AC timing required by PCI add-in cards. The -3 speed grade reliably handles 33 MHz PCI with margin; for 66 MHz PCI move to the -2 speed grade (EPF8820AQC160-2). The 5 V supply aligns with classic PCI slot power, eliminating level-shifters.
Recommandé
Embedded Glue Logic / System Integration
Replace dozens of 74-series TTL and CMOS glue-logic chips with a single EPF8820AQC160-3 to reduce board area, BOM count, and design complexity. With 672 logic cells and 1,500 registers, the device can absorb address decoding, bus arbitration, state machines, FIFO controllers, and interrupt controllers that would otherwise occupy a quarter-square-inch of board. The 5 V tolerant I/O is TTL-compatible, allowing direct connection to legacy peripherals without level translation. Designers can iterate the logic in days rather than weeks by re-spinning only the configuration bitstream, not the PCB. The 160-BQFP package is hand-solderable for prototypes.
Recommandé
ASIC Prototyping and Design Validation
Use the EPF8820AQC160-3 as a fast-turnaround prototype for an ASIC under development, validating register-transfer-level (RTL) logic in real silicon before committing to mask costs. The 125 MHz fmax and 282-1,500 flip-flops support medium-complexity datapath and control logic typical of industrial controller ASICs. Designers benefit from the in-circuit reconfigurability: a design bug discovered in system test can be patched by reloading a new bitstream via JTAG in minutes. Once the ASIC silicon returns, the FPGA can be repurposed for the next prototype or kept as a low-volume production fallback.
Recommandé
Industrial Control and Automation Backplanes
The 0C to +70C commercial operating range and 5 V supply tolerance suit the EPF8820AQC160-3 for industrial backplane controllers, VMEbus adapters, and PLC I/O expansion cards. With 120 I/Os the device can drive multi-drop RS-485 transceivers, parallel ADC/DAC interfaces, and opto-isolated digital I/O modules. The PCI compliance simplifies integration with industrial PCs and SBCs. Predictable FastTrack Interconnect timing allows designers to close timing at 25-33 MHz without manual place-and-route, shortening industrial design cycles.
Recommandé
Legacy Telecom and Datacom Adapter Cards
The EPF8820AQC160-3 was widely deployed in 1990s telecom and datacom adapter cards, including ISA/PCI bridge cards, SCSI controllers, and multi-port serial cards. Its 5 V operation matches the bus voltage of legacy PCs and workstations, and the PCI compliance simplifies driver development. For maintenance and repair of installed equipment, sourcing the EPF8820AQC160-3 via obsolete-parts distributors keeps legacy systems operational. The 160-BQFP is a familiar footprint for rework technicians familiar with vintage hardware.
Recommandé
High-Density State-Machine Replacement
Replace complex state machines previously implemented as dozens of PALs, GALs, or discrete MSI logic with a single EPF8820AQC160-3. The 672 logic cells and 1,500 registers can model large Mealy or Moore state machines with hundreds of states, including Huffman-coded state encoding for minimum transition counts. Designers describe the state machine in VHDL or Verilog and synthesize to the FLEX 8000 architecture using Altera MAX+PLUS II or Quartus tools. The 125 MHz fmax supports high-speed control loops in motor drives, instrument front-ends, and protocol converters.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour EPF8820AQC160-3 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | EPF8820AQC160-2 | EPF8636AQC160-3 | EPF8452AQC160-3 |
|---|---|---|---|---|
| Brand | Intel | Intel | Intel | Intel |
| Package | 160-BQFP | 160-BQFP (same) | 160-BQFP (same) | 160-BQFP (same) |
| Usable Gates | 8,000 | 8,000 | 6,000 | 4,000 |
| Logic Cells | 672 | 672 | 504 | 336 |
| Speed Grade | -3 | -2 (faster) | -3 | -3 |
| User I/Os | 120 | 120 | 120 | 120 |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V |
| Maximum Frequency | 125 MHz | 125 MHz (faster -2 grade) | 125 MHz | 125 MHz |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete |
Principaux différenciateurs
- True drop-in replacement available in same 160-BQFP footprint (vs EPF8820AQC160-2)
- Higher gate density than sibling FLEX 8000 family members (vs EPF8452AQC160-3)
- Full PCI SIG compliance at 33 MHz (vs EPF8636AQC160-3)
Notes de conception
The EPF8820AQC160-3 requires a stable 5 V supply (4.75 V to 5.25 V). Place 0.1 uF decoupling capacitors as close as possible to every VCC pin (4 pins total: 21, 61, 101, 141) and bulk-decouple the PCB with 10-100 uF tantalum capacitors. The FLEX 8000 family has high inrush current during configuration; ensure the 5 V regulator can supply at least 500 mA peak. Add a power-on reset supervisor (e.g., MAX706) to hold the FPGA in reset until VCC stabilizes. According to the FLEX 8000 datasheet, VCC must ramp monotonically; partial-voltage power-up can latch the device into an undefined state.
Route configuration signals (nCONFIG, nSTATUS, CONF_DONE, DCLK, DATA0) away from high-speed switching nets and keep them as short as possible. The JTAG signals (TCK, TMS, TDI, TDO) require 10 kohm pull-ups on TMS, TDI, and nCONFIG per IEEE 1149.1. Place the configuration EPROM (e.g., EPC1064) within 100 mm of the FPGA to avoid signal-integrity issues. The 160-BQFP package requires a 4-layer PCB with ground plane for EMI suppression; ground return paths under clock and address/data nets must be continuous.
Do not confuse the -3 speed grade with -4 or -2: each grade changes internal timing parameters and fmax by 12-15%. The EPF8820AQC160-3 (160-BQFP) is not pin-compatible with the EPF8820ABC225-4 (225-BGA) or EPF8820AGC192-2 (192-PQFP); migrating to those variants requires full PCB rework. Do not assume 3.3 V I/O compatibility: this is a 5 V part and will be damaged by 3.3 V signals applied without level translation. The 'C' in AQC160 indicates commercial temperature (0-70C); industrial designs require the 'I' suffix variant which is not available in 160-BQFP.
Informations de conformité
Legacy Altera FLEX 8000 family part predates RoHS requirements; most variants contain lead-based solder. Not AEC-Q100 qualified (commercial-grade only). Compliance values reflect legacy part status; verify with specific lot documentation if compliance certification is required.
