EPF8820ARI208-4N - FLEX 8000 FPGA 8K Gates 672 Cells 5V RQFP-208 | Altera
MPN: EPF8820ARI208-4N ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.2 | $7.20 |
| 10 | $6.5 | $65.00 |
| 100 | $5.4 | $540.00 |
| 500 | $4.8 | $2,400.00 |
| 1,000 | $4.2 | $4,200.00 |
Drop-in alternatives for EPF8820ARI208-4N — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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EPF8820ARC208-4N
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View Datasheet →EPF8820ARI208-4H
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View Datasheet →EPF8820ARI208-4N Maximum Ratings & Electrical Characteristics
| Family | FLEX 8000 |
| Logic Elements / Cells | 672 |
| Typical Gates | 8K |
| Flip-Flops | 820 |
| Maximum Operating Frequency | 125 MHz |
| Process Technology | 0.42 µm CMOS |
| Supply Voltage (Nominal) | 5 V |
| Supply Voltage Range | 4.5 V to 5.5 V |
| I/O Voltage Standards | 3.3 V / 5 V configurable |
| Package | 208-pin RQFP (Power Quad Flat Pack) |
| Mounting Type | Surface Mount (Gull-wing) |
| User I/O Count | 152 |
| Embedded Array Blocks (EABs) | 12 (256×8 to 2048×1 RAM modes) |
| Operating Temperature Grade | Industrial |
| Programming Interface | JTAG / IEEE 1149.1 |
EPF8820ARI208-4N 208-pin rqfp (power quad flat pack) Pin Configuration Guide
Complete pinout information for EPF8820ARI208-4N (208-pin rqfp (power quad flat pack) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for EPF8820ARI208-4N.
Refer to the datasheet for full pin configuration.
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
EPF8820ARI208-4N is suitable for 6 applications: Legacy Industrial Glue Logic Replacement, Bus Interface Bridging (ISA/PCI/VME), Telecommunications Backplane Controllers, Military & Aerospace Retrofits, Test & Measurement Front-End Logic, Educational FPGA Development Platforms.
Legacy Industrial Glue Logic Replacement
The EPF8820ARI208-4N is a natural drop-in for legacy 5 V TTL glue-logic designs that need to be consolidated into a single programmable device. Its 8K gates / 672 logic elements are sufficient to absorb multiple 74LS/74F/74AS glue packages, freeing board area and reducing BOM. Industrial temperature grade (-40 to +85 C) supports factory-floor environments, and 5 V-tolerant I/Os interface directly with 5 V logic without level shifters. The JTAG/IEEE 1149.1 interface allows in-system reprogramming, ideal for late-stage design fixes. Designers should budget I/O count carefully because the 208-pin RQFP only exposes 152 user I/Os.
Recommended
Bus Interface Bridging (ISA/PCI/VME)
The EPF8820ARI208-4N is widely used as a bus-interface bridge in legacy 5 V systems, converting between ISA, PCI, VME, and proprietary backplane protocols. Its 820 flip-flops and 12 EABs (each configurable up to 2Kbit RAM) provide the register file and FIFO depth typical of bus-bridge state machines, while 125 MHz operation supports PCI 33 MHz timing closure. The 152 user I/Os are enough to bridge multi-byte data buses plus full address/control signal sets. Compared to a CPLD, the 672-LE capacity allows full datapath plus protocol-state-machine in one device.
Recommended
Telecommunications Backplane Controllers
The EPF8820ARI208-4N is suitable for telecom backplane controllers where 5 V tolerance and long-term availability are mandated. Its 8K gates provide the state-machine capacity for HDLC framing, TDM bus arbitration, and alarm monitoring, while the 12 EABs implement small lookup tables for routing tables and configuration registers. 125 MHz internal frequency supports TDM bit-clock multiplexing for E1/T1/J1 streams. Designers in telecom should note the FLEX 8000 family is NRND; long-life-cycle SPX/distributor support is essential for the 10-15 year deployment windows common in this segment.
Recommended
Military & Aerospace Retrofits
The EPF8820ARI208-4N is appropriate for military and aerospace retrofits and legacy-system sustainment programs. Its industrial temperature grade, mature 0.42 µm CMOS process, and long-life Altera/Intel PSG support make it suitable for systems designed in the late 1990s/early 2000s that are still in service. The 208-pin RQFP package is widely accepted in aerospace PCBs with established reliability data. Engineers should verify MIL-STD-883 or specific aerospace screening requirements with their distributor, and note that dedicated military-grade (M) speed/temperature variants may be available under different ordering codes.
Recommended
Test & Measurement Front-End Logic
The EPF8820ARI208-4N is well-suited to test-and-measurement front-end logic where custom timing patterns and channel multiplexing are needed. Its 672 logic elements, 820 flip-flops, and 12 EABs provide enough capacity to implement multi-channel pattern generators, multiplexers, and trigger sequencers. The 125 MHz Fmax supports fast pattern generation up to 125 Megasamples/sec in pipelined architectures. 5 V I/O compatibility allows direct connection to legacy instrumentation front-ends without level translators, while JTAG programming enables rapid pattern iteration during test development.
Recommended
Educational FPGA Development Platforms
The EPF8820ARI208-4N remains a popular choice for university FPGA courses and textbook examples (e.g., legacy Altera FLEX 8000 lab manuals). Its 8K gates are large enough for meaningful design projects (UARTs, FIFO controllers, simple CPUs) yet small enough that students can complete place-and-route in seconds using MAX+PLUS II. The 208-pin RQFP package allows through-hole-style breakout boards using PQFP-to-DIP adapters, simplifying laboratory wiring. 5 V tolerance protects against student wiring mistakes, while JTAG programming means no external programmer beyond a ByteBlaster cable is required.
Recommended
Recommended Products Summary
Engineering reference data for EPF8820ARI208-4N — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPF8820ARC208-4N | EPF8820ARC208-3N | EPF8820ARI208-3N | EPF8820ARI208-4 | EPF8820ARI208-4H |
|---|---|---|---|---|---|---|
| Brand | Altera (Intel PSG) | Altera (Intel PSG) | Altera (Intel PSG) | Altera (Intel PSG) | Altera (Intel PSG) | Altera (Intel PSG) |
| Package | 208-pin RQFP | 208-pin RQFP - same | 208-pin RQFP - same | 208-pin RQFP - same | 208-pin RQFP - same | 208-pin RQFP - same |
| Family | FLEX 8000 | FLEX 8000 | FLEX 8000 | FLEX 8000 | FLEX 8000 | FLEX 8000 |
| Logic Elements | 672 | 672 | 672 | 672 | 672 | 672 |
| Typical Gates | 8K | 8K | 8K | 8K | 8K | 8K |
| Flip-Flops | 820 | 820 | 820 | 820 | 820 | 820 |
| Speed Grade | -4 | -4 | -3 (faster) | -3 (faster) | -4 | -4 |
| Temperature Grade | Industrial (-40 to +85 C) | Commercial (0 to +70 C) | Commercial (0 to +70 C) | Industrial (-40 to +85 C) | Industrial (-40 to +85 C) | Industrial (-40 to +85 C) |
Key Differentiators
- Same package and pinout as EPF8820ARC208-4N (vs EPF8820ARC208-4N)
- Lower speed grade than EPF8820ARI208-3N (vs EPF8820ARI208-3N)
- 5 V I/O tolerance preserved across all 8820 variants (vs EPF8820ARI208-4H)
Design Notes
Estimated: at 5 V supply and typical 50 mA core current, the EPF8820ARI208-4N dissipates approximately 250 mW quiescent. Add 5-20 mW per toggling I/O at 25 MHz. Decouple each VCC pin with a 0.1 µF ceramic capacitor placed within 5 mm of the pin, and place a 10 µF tantalum bulk capacitor near the package. The 0.42 µm CMOS process is not as power-efficient as modern FPGAs, so thermal management is rarely an issue but supply decoupling is critical to meet 125 MHz timing closure.
The 208-pin RQFP has 0.5 mm lead pitch and gull-wing leads. Route all signals on inner PCB layers and use the outer layers primarily for power/ground. Provide at least 4 power planes: 5 V core, 5 V VCCIO, 3.3 V VCCIO (if used), and ground. JTAG signals (TCK, TMS, TDI, TDO) should be guarded with ground traces and pulled up/down per Altera's application note. Maintain 50 Ω characteristic impedance on clock traces and place clock generation components within 25 mm of the clock input pin.
Do not assume the EPF8820ARI208-4N can be programmed with Quartus Prime without re-checking the device support list; some Quartus versions dropped FLEX 8000 support and MAX+PLUS II is required. Do not mix 3.3 V and 5 V I/O banks arbitrarily; consult the FLEX 8000 datasheet for VCCIO pin assignments. Do not connect VCCIO pins to 5 V when configured for 3.3 V I/O. The configuration memory is volatile SRAM - the design must be loaded from a configuration EPROM (EPC2 or compatible) on every power-up.
Compliance Information
EPF8820ARI208-4N is a legacy NRND part from the 0.42 µm CMOS generation. The -H suffix variant (EPF8820ARI208-4H) typically denotes lead-free/RoHS-compatible lead finish, but compliance status of the standard -4N variant is not specified in the verified web data and should be confirmed with the distributor at order entry. AEC-Q100 is not applicable because this is an FPGA, not an automotive-grade IC.
