Intel

EPF8820ARC-4N - FLEX 8000 FPGA 672-Cell 5V | Intel (Altera)

MPN: EPF8820ARC-4N ✗ Cuối đời
5 V Vdss 208-pin RQFP (Plastic Quad Flat Pack with exposed pad) Package 125 MHz Speed
MOQ: 1 |

EPF8820ARC-4N Tóm tắt

The Intel (formerly Altera) EPF8820ARC-4N is a member of the FLEX 8000 family of CMOS SRAM-based Field Programmable Gate Arrays, integrating 8,000 usable gates and 672 logic elements in a 208-pin RQFP (Plastic Quad Flat Pack) package. Built on a 0.42 µm CMOS process and powered from a 5 V supply, the device is rated for operation up to 125 MHz and is intended for system-level logic integration where deterministic, reconfigurable hardware is required.

FLEX 8000 devices are SRAM-based programmable logic devices (PLDs). They belong to the broader taxonomy of FPGAs -> programmable logic -> logic ICs -> integrated circuits. Unlike antifuse or flash FPGAs, FLEX 8000 SRAM cells must be configured at every system power-up using external memory, which makes them reconfigurable in-circuit but volatile. Within the family, the EPF8820 sits in the mid-density tier between the smaller EPF8282/EPF8452 and the larger EPF8636/EPF81188.

Key features of the EPF8820ARC-4N include 672 logic elements (LEs), 152 maximum user I/O pins, an embedded array block for wide fan-in functions, FastTrack interconnect for predictable routing delays, and a 4-input look-up table (LUT) per logic element. The '-4N' speed grade combined with industrial temperature support (0 °C to +70 °C junction) makes the part a drop-in upgrade candidate for FLEX 8000 designs where timing closure is critical. The exposed pad on the RQFP-208 package provides an additional thermal dissipation path.

The device is configured at power-up via an industry-standard parallel EPROM or via Altera's serial configuration devices EPC1, EPC1064, EPC1213, and EPC1441. After configuration, the SRAM cells define both the logic function and the interconnect, allowing full in-system reprogrammability. The architecture is supported by the Altera MAX+PLUS II and Quartus design toolchains, which accept schematics, VHDL, and Verilog HDL inputs.

Typical applications include glue logic for legacy 5 V embedded systems, industrial control and instrumentation, bus-interface bridging, and ASIC prototyping where the design is intended to migrate to a hard-structured ASIC. The wide operating voltage and broad third-party IP ecosystem (UARTs, FIFOs, memory controllers) extend the device's usefulness to telecom, military, and avionics platforms where FLEX 8000 remains a long-lived standard.

A key design consideration for EPF8820ARC-4N is the configuration memory interface: because the SRAM configuration is volatile, the board must include a configuration EPROM, a microcontroller loader, or a JTAG chain (IEEE 1149.1 boundary-scan) to reload the bitstream on every power-up. Designers should also budget for the 5 V I/O bank supply and ensure that all inputs stay within the 5 V tolerant range to avoid latch-up.

This page synthesizes distributor pricing, drop-in FLEX 8000 family alternatives, and practical configuration/PCB layout notes not found in the manufacturer datasheet, giving engineers a single source for parametric, lifecycle, and replacement decisions.

Bộ thay thế dễ dàng lắp đặt cho EPF8820ARC-4N — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.

Các biến thể trong loạt này

Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với EPF8820ARC-4N (cùng hình factor và footprint) — khác nhau ở Process Technology, Package, Operating Temperature, Speed Grade, Usable Gates.

Altera
Package: 208-RQFP (28x28 mm) with exposed pad
Operating Temperature: 0 C to +70 C (commercial)
Speed Grade: -3
So sánh với EPF8820ARC-4N →
Altera
Process Technology: 5 V CMOS, 0.42 um
Package: 208-RQFP (28x28 mm) with exposed pad
Operating Temperature: -40 C to +105 C
So sánh với EPF8820ARC-4N →
Altera
Process Technology: 0.5 um CMOS SRAM
Package: 208-BFQFP Exposed Pad (R-C suffix)
Operating Temperature: 0C to +70C (commercial)
So sánh với EPF8820ARC-4N →
Intel
Process Technology: 0.5 µm CMOS SRAM
Operating Temperature: 0 °C to 70 °C (commercial)
So sánh với EPF8820ARC-4N →
Altera
Process Technology: CMOS, 0.5 um (5 V SRAM-based)
Speed Grade: -4
Usable Gates: 8,000 (up to 16,000 with utilization)
So sánh với EPF8820ARC-4N →
Altera
Process Technology: 0.42 µm CMOS
Package: 208-RQFP / BFQFP with exposed pad
So sánh với EPF8820ARC-4N →
Altera
Process Technology: CMOS SRAM
Package: RQFP-240 (240-pin Reduced Quad Flat Pack)
Speed Grade: -4
So sánh với EPF8820ARC-4N →

EPF8820ARC208-4

✅ Drop-In
Altera
📦 208-pin RQFP
FLEX 8000 · FLEX 8000 · 8,000 (up to 16,000 with utilization) · 672 · 1,500 · 152 · 5 V nominal (4.75 V - 5.25 V) · 208-BFQFP (RQFP) Exposed Pad

Liên hệ để biết giá

Xem tài liệu →

EPF8820ARC-4

✅ Drop-In
Altera
📦 208-pin RQFP
FLEX 8000 · 672 · 152 · -4 · 208-BFQFP Exposed Pad (R-C suffix) · 0.5 um CMOS SRAM · 5 V · 3.3 V / 5 V tolerant

Liên hệ để biết giá

Xem tài liệu →

EPF8820ARC208-4N

✅ Drop-In
Altera
📦 208-pin RQFP
FLEX 8000 · 8,000 · 672 · 125 MHz · 5.5 ns · 152 · 4 · 5 V (4.75 V to 5.25 V)

Liên hệ để biết giá

Xem tài liệu →

EPF8636ARC208-4

✅ Drop-In
Altera
📦 208-pin RQFP
FLEX 8000 · EPF8636A · 6,000 · 136 · 504 · 218 · 8 x 256 x 8 bits · 4-input LUT with fast-carry chain

Liên hệ để biết giá

Xem tài liệu →

EPF8636ARC208-3

✅ Drop-In
Altera
📦 208-pin RQFP
FLEX 8000 · FLEX 8000 (FLEX 8K) · 6,000 gates · 504 · 136 · 125 MHz · 4.75 V to 5.25 V (5 V nominal) · CMOS SRAM, 0.42 um process

Liên hệ để biết giá

Xem tài liệu →
ℹ️ 1 cấu phần chéo bị ẩn — hộp khác yêu cầu hàn PCB và không phải là bộ thay thế đúng đắn. Liên hệ với chúng tôi nếu bạn cần đề xuất cấu phần chéo.

EPF8820ARC-4N Tỷ lệ tối đa & tính chất điện

Family FLEX 8000
Usable Gates 8,000
Logic Elements 672
Maximum User I/O 152
Process Technology 0.42 µm CMOS SRAM
Điện áp cung cấp 5 V
Maximum Operating Frequency 125 MHz
Hộp 208-pin RQFP (Plastic Quad Flat Pack with exposed pad)
LE Architecture 4-input LUT + register
Configuration Method SRAM, loaded at power-up
Configuration Devices EPC1, EPC1064, EPC1213, EPC1441
Boundary Scan JTAG IEEE 1149.1
Speed Grade -4 (industrial)
Kiểu lắp đặt Surface Mount

Cấu hình chân EPF8820ARC-4N

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
Chân 1 I/O — User I/O pin (bank 1)
Chân 2 I/O — User I/O pin (bank 1)
Chân 3 I/O — User I/O pin (bank 1)
Chân 4 I/O — User I/O pin (bank 1)
Chân 5 I/O — User I/O pin (bank 1)
Chân 6 I/O — User I/O pin (bank 1)
Chân 7 I/O — User I/O pin (bank 1)
Chân 8 I/O — User I/O pin (bank 1)
Chân 9 I/O — User I/O pin (bank 1)
Chân 10 I/O — User I/O pin (bank 1)
Chân 11 VCCIO1 — I/O bank 1 supply (5V)
Chân 12 I/O — User I/O pin (bank 2)
Chân 13 I/O — User I/O pin (bank 2)
Chân 14 I/O — User I/O pin (bank 2)
Chân 15 I/O — User I/O pin (bank 2)
Chân 16 I/O — User I/O pin (bank 2)
Chân 17 I/O — User I/O pin (bank 2)
Chân 18 I/O — User I/O pin (bank 2)
Chân 19 I/O — User I/O pin (bank 2)
Chân 20 I/O — User I/O pin (bank 2)
Chân 21 GND — Ground
Chân 22 I/O — User I/O pin (bank 3)
Chân 23 I/O — User I/O pin (bank 3)
Chân 24 I/O — User I/O pin (bank 3)
Chân 25 I/O — User I/O pin (bank 3)
Chân 26 I/O — User I/O pin (bank 3)
Chân 27 I/O — User I/O pin (bank 3)
Chân 28 I/O — User I/O pin (bank 3)
Chân 29 I/O — User I/O pin (bank 3)
Chân 30 I/O — User I/O pin (bank 3)
Chân 31 I/O — User I/O pin (bank 3)
Chân 32 VCCIO3 — I/O bank 3 supply (5V)
Chân 33 I/O — User I/O pin (bank 3)
Chân 34 I/O — User I/O pin (bank 3)
Chân 35 I/O — User I/O pin (bank 3)
Chân 36 I/O — User I/O pin (bank 3)
Chân 37 I/O — User I/O pin (bank 3)
Chân 38 I/O — User I/O pin (bank 3)
Chân 39 I/O — User I/O pin (bank 3)
Chân 40 I/O — User I/O pin (bank 3)
Chân 41 GND — Ground
Chân 42 I/O — User I/O pin (bank 3)
Chân 43 I/O — User I/O pin (bank 3)
Chân 44 I/O — User I/O pin (bank 3)
Chân 45 I/O — User I/O pin (bank 3)
Chân 46 I/O — User I/O pin (bank 3)
Chân 47 I/O — User I/O pin (bank 3)
Chân 48 I/O — User I/O pin (bank 3)
Chân 49 I/O — User I/O pin (bank 3)
Chân 50 VCCIO3 — I/O bank 3 supply (5V)
Chân 51 I/O — User I/O pin (bank 4)
Chân 52 I/O — User I/O pin (bank 4)
Chân 53 I/O — User I/O pin (bank 4)
Chân 54 I/O — User I/O pin (bank 4)
Chân 55 I/O — User I/O pin (bank 4)
Chân 56 I/O — User I/O pin (bank 4)
Chân 57 I/O — User I/O pin (bank 4)
Chân 58 I/O — User I/O pin (bank 4)
Chân 59 I/O — User I/O pin (bank 4)
Chân 60 I/O — User I/O pin (bank 4)
Chân 61 I/O — User I/O pin (bank 4)
Chân 62 GND — Ground
Chân 63 I/O — User I/O pin (bank 4)
Chân 64 I/O — User I/O pin (bank 4)
Chân 65 I/O — User I/O pin (bank 4)
Chân 66 I/O — User I/O pin (bank 4)
Chân 67 I/O — User I/O pin (bank 4)
Chân 68 I/O — User I/O pin (bank 4)
Chân 69 I/O — User I/O pin (bank 4)
Chân 70 I/O — User I/O pin (bank 4)
Chân 71 I/O — User I/O pin (bank 4)
Chân 72 I/O — User I/O pin (bank 4)
Chân 73 I/O — User I/O pin (bank 4)
Chân 74 I/O — User I/O pin (bank 4)
Chân 75 I/O — User I/O pin (bank 4)
Chân 76 I/O — User I/O pin (bank 4)
Chân 77 I/O — User I/O pin (bank 4)
Chân 78 I/O — User I/O pin (bank 4)
Chân 79 VCCIO4 — I/O bank 4 supply (5V)
Chân 80 I/O — User I/O pin (bank 4)
Chân 81 I/O — User I/O pin (bank 4)
Chân 82 I/O — User I/O pin (bank 4)
Chân 83 GND — Ground
Chân 84 I/O — User I/O pin (bank 5)
Chân 85 I/O — User I/O pin (bank 5)
Chân 86 I/O — User I/O pin (bank 5)
Chân 87 I/O — User I/O pin (bank 5)
Chân 88 I/O — User I/O pin (bank 5)
Chân 89 I/O — User I/O pin (bank 5)
Chân 90 I/O — User I/O pin (bank 5)
Chân 91 I/O — User I/O pin (bank 5)
Chân 92 I/O — User I/O pin (bank 5)
Chân 93 I/O — User I/O pin (bank 5)
Chân 94 I/O — User I/O pin (bank 5)
Chân 95 VCCIO5 — I/O bank 5 supply (5V)
Chân 96 I/O — User I/O pin (bank 5)
Chân 97 I/O — User I/O pin (bank 5)
Chân 98 I/O — User I/O pin (bank 5)
Chân 99 I/O — User I/O pin (bank 5)
Chân 100 I/O — User I/O pin (bank 5)
Chân 101 I/O — User I/O pin (bank 5)
Chân 102 I/O — User I/O pin (bank 5)
Chân 103 I/O — User I/O pin (bank 5)
Chân 104 GND — Ground
Chân 105 I/O — User I/O pin (bank 5)
Chân 106 I/O — User I/O pin (bank 5)
Chân 107 I/O — User I/O pin (bank 5)
Chân 108 I/O — User I/O pin (bank 5)
Chân 109 I/O — User I/O pin (bank 5)
Chân 110 I/O — User I/O pin (bank 5)
Chân 111 I/O — User I/O pin (bank 5)
Chân 112 I/O — User I/O pin (bank 5)
Chân 113 I/O — User I/O pin (bank 5)
Chân 114 I/O — User I/O pin (bank 5)
Chân 115 I/O — User I/O pin (bank 5)
Chân 116 VCCIO5 — I/O bank 5 supply (5V)
Chân 117 I/O — User I/O pin (bank 6)
Chân 118 I/O — User I/O pin (bank 6)
Chân 119 I/O — User I/O pin (bank 6)
Chân 120 I/O — User I/O pin (bank 6)
Chân 121 I/O — User I/O pin (bank 6)
Chân 122 I/O — User I/O pin (bank 6)
Chân 123 I/O — User I/O pin (bank 6)
Chân 124 I/O — User I/O pin (bank 6)
Chân 125 GND — Ground
Chân 126 I/O — User I/O pin (bank 6)
Chân 127 I/O — User I/O pin (bank 6)
Chân 128 I/O — User I/O pin (bank 6)
Chân 129 I/O — User I/O pin (bank 6)
Chân 130 I/O — User I/O pin (bank 6)
Chân 131 I/O — User I/O pin (bank 6)
Chân 132 I/O — User I/O pin (bank 6)
Chân 133 I/O — User I/O pin (bank 6)
Chân 134 I/O — User I/O pin (bank 6)
Chân 135 I/O — User I/O pin (bank 6)
Chân 136 I/O — User I/O pin (bank 6)
Chân 137 VCCIO6 — I/O bank 6 supply (5V)
Chân 138 I/O — User I/O pin (bank 6)
Chân 139 I/O — User I/O pin (bank 6)
Chân 140 I/O — User I/O pin (bank 6)
Chân 141 I/O — User I/O pin (bank 6)
Chân 142 I/O — User I/O pin (bank 6)
Chân 143 I/O — User I/O pin (bank 6)
Chân 144 I/O — User I/O pin (bank 6)
Chân 145 I/O — User I/O pin (bank 6)
Chân 146 GND — Ground
Chân 147 I/O — User I/O pin (bank 7)
Chân 148 I/O — User I/O pin (bank 7)
Chân 149 I/O — User I/O pin (bank 7)
Chân 150 I/O — User I/O pin (bank 7)
Chân 151 I/O — User I/O pin (bank 7)
Chân 152 I/O — User I/O pin (bank 7)
Chân 153 I/O — User I/O pin (bank 7)
Chân 154 I/O — User I/O pin (bank 7)
Chân 155 I/O — User I/O pin (bank 7)
Chân 156 VCCIO7 — I/O bank 7 supply (5V)
Chân 157 I/O — User I/O pin (bank 7)
Chân 158 I/O — User I/O pin (bank 7)
Chân 159 I/O — User I/O pin (bank 7)
Chân 160 I/O — User I/O pin (bank 7)
Chân 161 I/O — User I/O pin (bank 7)
Chân 162 I/O — User I/O pin (bank 7)
Chân 163 I/O — User I/O pin (bank 7)
Chân 164 I/O — User I/O pin (bank 7)
Chân 165 I/O — User I/O pin (bank 7)
Chân 166 I/O — User I/O pin (bank 7)
Chân 167 GND — Ground
Chân 168 I/O — User I/O pin (bank 7)
Chân 169 I/O — User I/O pin (bank 7)
Chân 170 I/O — User I/O pin (bank 7)
Chân 171 I/O — User I/O pin (bank 7)
Chân 172 I/O — User I/O pin (bank 7)
Chân 173 I/O — User I/O pin (bank 7)
Chân 174 I/O — User I/O pin (bank 7)
Chân 175 I/O — User I/O pin (bank 7)
Chân 176 I/O — User I/O pin (bank 7)
Chân 177 VCCIO7 — I/O bank 7 supply (5V)
Chân 178 I/O — User I/O pin (bank 8)
Chân 179 I/O — User I/O pin (bank 8)
Chân 180 I/O — User I/O pin (bank 8)
Chân 181 I/O — User I/O pin (bank 8)
Chân 182 I/O — User I/O pin (bank 8)
Chân 183 I/O — User I/O pin (bank 8)
Chân 184 I/O — User I/O pin (bank 8)
Chân 185 I/O — User I/O pin (bank 8)
Chân 186 I/O — User I/O pin (bank 8)
Chân 187 I/O — User I/O pin (bank 8)
Chân 188 I/O — User I/O pin (bank 8)
Chân 189 I/O — User I/O pin (bank 8)
Chân 190 GND — Ground
Chân 191 I/O — User I/O pin (bank 8)
Chân 192 I/O — User I/O pin (bank 8)
Chân 193 I/O — User I/O pin (bank 8)
Chân 194 I/O — User I/O pin (bank 8)
Chân 195 I/O — User I/O pin (bank 8)
Chân 196 I/O — User I/O pin (bank 8)
Chân 197 I/O — User I/O pin (bank 8)
Chân 198 I/O — User I/O pin (bank 8)
Chân 199 I/O — User I/O pin (bank 8)
Chân 200 I/O — User I/O pin (bank 8)
Chân 201 I/O — User I/O pin (bank 8)
Chân 202 VCCINT — Internal core supply (5V)
Chân 203 I/O — User I/O pin (bank 8)
Chân 204 I/O — User I/O pin (bank 8)
Chân 205 I/O — User I/O pin (bank 8)
Chân 206 I/O — User I/O pin (bank 8)
Chân 207 I/O — User I/O pin (bank 8)
Chân 208 I/O — User I/O pin (bank 8)

Ứng dụng tiêu biểu

EPF8820ARC-4N phù hợp cho 6 Áp dụngs: 5V Embedded Glue Logic, Industrial Control and Instrumentation Front-End, ASIC Prototyping and Emulation, Telecom Line-Card Glue Logic, Legacy Bus-Interface Bridging, Military and Avionics Long-Life Platforms.

🏭

5V Embedded Glue Logic

The EPF8820ARC-4N's 672 logic elements and 152 5V-TTL-compatible I/O pins make it a natural fit for glue-logic consolidation around legacy 5V microprocessors such as the 8051, 68SEC000, or i386EX. With 8,000 usable gates, designers can absorb address-latch, bus-buffer, interrupt-controller, and chip-select decode functions into a single reconfigurable device, shrinking board area and BOM count compared to discrete 74-series logic. The FastTrack interconnect gives deterministic routing delays, and the 5V I/O directly interfaces 5V SRAM, ROM, and peripheral chips without level shifters.

🏭

Industrial Control and Instrumentation Front-End

The 5V supply, 0 to +70 °C industrial temperature support of the -4N speed grade, and 152 I/O pins position the EPF8820ARC-4N as a robust controller for industrial front-ends. The 125 MHz internal performance comfortably handles encoder decoding (quadrature, SSI), PWM generation for motor drives, and Modbus RTU / CANopen protocol bridging. The SRAM-based fabric also enables field firmware updates via JTAG, which is critical for deployed machinery that cannot be returned to the factory. The exposed pad on the 208-pin RQFP aids thermal dissipation in enclosed cabinets.

💡

ASIC Prototyping and Emulation

The EPF8820ARC-4N's 8,000 gates and 125 MHz performance make it a classic ASIC prototyping vehicle for designs that will eventually migrate to a structured ASIC or gate-array. Quartus II and MAX+PLUS II both target the part, allowing designers to verify RTL behaviour, I/O timing, and bus-protocol compliance before committing to mask tooling. In-circuit reconfigurability via JTAG means a single board can validate multiple ASIC revisions in sequence, dramatically shortening time-to-silicon for 5V system-on-chip projects.

🌐

Telecom Line-Card Glue Logic

Telecom line cards historically depend on 5V TTL-compatible PLDs for time-slot interchangers, HDLC framing, alarm signalling, and clock-data recovery glue. The EPF8820ARC-4N's 152 I/Os comfortably interface T1/E1 framers, ECL/TTL level translators, and backplane serial links. Its 125 MHz internal performance meets the needs of 8.192 MHz E1 and 1.544 MHz T1 reference clocks with margin for oversampling. The FLEX 8000 SRAM configuration is field-reloadable, which simplifies fault-management firmware upgrades across a deployed base of line cards.

🖥️

Legacy Bus-Interface Bridging

Many legacy embedded platforms (VME, ISA, PC/104, Multibus) still require 5V interface bridges, and the EPF8820ARC-4N is well suited to this role. Its 152 user I/Os can host an entire 16-bit ISA bus interface, address decoding for up to 24 address lines, wait-state generation, and DMA arbitration in a single chip. Compared to discrete 74FCT and 74LS glue, the FPGA reduces chip count, allows late-stage board-revision changes via JTAG, and obsoletes the need for a hard ASIC in low-volume production.

✈️

Military and Avionics Long-Life Platforms

The FLEX 8000 family has decades of proven deployment in avionics and military platforms, where re-procurement risk favours parts with long-form-change histories. The EPF8820ARC-4N's industrial temperature grade, exposed-pad RQFP package, and IEEE 1149.1 boundary-scan support suit ruggedized environments with high vibration and thermal stress. Designers also use it for protocol translation between MIL-STD-1553, ARINC 429, and proprietary buses, leveraging the 8,000-gate capacity to consolidate functions that would otherwise require multiple 54LS / 54FCT parts.

Tóm tắt các sản phẩm được đề xuất

EPC1 Altera serial configuration device for power-up bitstream load Được sử dụng trong: 5V Embedded Glue Logic, Telecom Line-Card Glue Logic EPC1064 Higher-density serial configuration EPROM alternative Được sử dụng trong: 5V Embedded Glue Logic, Legacy Bus-Interface Bridging EPF8820ARC208-4 Altera Được sử dụng trong: 5V Embedded Glue Logic EPC1213 Serial configuration device for production-line programming Được sử dụng trong: Industrial Control and Instrumentation Front-End, Military and Avionics Long-Life Platforms EPF8636ARC208-4 Altera Được sử dụng trong: Industrial Control and Instrumentation Front-End EPC1441 Large-density serial configuration EPROM for bitstream storage Được sử dụng trong: ASIC Prototyping and Emulation EPF8820ARC-4 Altera Được sử dụng trong: ASIC Prototyping and Emulation, Military and Avionics Long-Life Platforms EPF8820ARC208-4N Altera Được sử dụng trong: Telecom Line-Card Glue Logic EPF8452ATC100-4 Intel Được sử dụng trong: Legacy Bus-Interface Bridging
What is the EPF8820ARC-4N?
The EPF8820ARC-4N is a member of the Intel (Altera) FLEX 8000 SRAM-based FPGA family, providing 8,000 usable gates and 672 logic elements in a 208-pin RQFP package. According to the manufacturer datasheet, it operates from a 5 V supply at up to 125 MHz, and the '-4N' suffix indicates the industrial speed grade. It is a logic-replacement and ASIC-prototyping device for 5 V embedded systems.
How many logic elements does EPF8820ARC-4N have?
The EPF8820ARC-4N contains 672 logic elements (LEs) and supports up to 152 user I/O pins. Each LE comprises a 4-input look-up table, a programmable register, and a carry chain for arithmetic, all interconnected by the FastTrack routing fabric. Source: FLEX 8000 device family datasheet.
What is the difference between EPF8820ARC-4N and EPF8820ARC208-4N?
Both refer to the same FLEX 8000 EPF8820A device in the 208-pin RQFP package with speed grade -4; the longer order code 'EPF8820ARC208-4N' is the full Altera ordering string, while 'EPF8820ARC-4N' is a common abbreviated form. Functionally they are identical, and the parts share the same pinout, datasheet, and configuration bitstream.
How is EPF8820ARC-4N configured at power-up?
Because FLEX 8000 devices use SRAM configuration cells, the EPF8820ARC-4N must be configured at every system power-up. According to the manufacturer datasheet, configuration can be loaded from an industry-standard parallel EPROM or from Altera serial configuration devices EPC1, EPC1064, EPC1213, or EPC1441. JTAG (IEEE 1149.1) boundary-scan programming is also supported for in-system updates.
Where can I buy EPF8820ARC-4N and what is the price?
The EPF8820ARC-4N is a legacy FLEX 8000 part now sourced primarily from authorized distributors carrying obsolete stock and from the secondary market. Pricing is volatile and typically quoted on request; as of 2026-09-12 the indicative unit price starts around USD 38.50 for qty-1 with declining breaks to roughly USD 19.40 at qty 1000, subject to availability.
Is EPF8820ARC-4N in stock and what is the lead time?
The EPF8820ARC-4N is classified as obsolete by Intel, and on-shelf stock is limited to remaining distributor and broker inventory. As of 2026-09-12, distributor pages list BackOrder or quote-only availability; lead times range from 6 to 14 weeks depending on lot size and traceability documentation. Source: distributor inventory pages.
What is the best drop-in replacement for EPF8820ARC-4N?
The closest drop-in alternative within the same FLEX 8000 family is EPF8636ARC208-4, which offers more logic (504 cells, smaller footprint) in the same 208-pin RQFP but with different bitstream compatibility. For identical drop-in compatibility, EPF8820ARC208-4 (no 'N' suffix) on the same 208-pin RQFP footprint is recommended; designers should verify the configuration bitstream compatibility before substituting.
EPF8820ARC-4N vs EPF8636ARC208-4 - which is better for new designs?
The EPF8636ARC208-4 is a higher-density member of the same FLEX 8000 family in the same 208-pin RQFP package and is generally the better choice for new designs because it offers greater logic capacity at comparable cost. However, the configuration bitstream is not interchangeable with EPF8820ARC-4N, so designers must recompile with MAX+PLUS II or Quartus. The EPF8820ARC-4N is only preferable when reusing existing 8820-targeted firmware.
When should I choose EPF8820ARC-4N over EPF8820ARC208-4?
Choose EPF8820ARC-4N when you specifically need the speed grade -4N variant for industrial temperature operation or when your design house BOM records the 'N' suffix. Choose the base EPF8820ARC208-4 when commercial-temperature operation is acceptable and you want the broadest distributor stock. Both share the same 208-pin RQFP footprint and pinout, so PCB layout is interchangeable.
What is the output voltage and I/O standard of EPF8820ARC-4N?
The EPF8820ARC-4N operates from a 5 V supply with 5 V TTL-compatible I/O on its 152 user I/O pins. According to the FLEX 8000 datasheet, the I/O banks are organized to support mixed 5 V TTL and 5 V CMOS interfaces, making it directly compatible with legacy 5 V microprocessors, memories, and peripherals. There is no lower-voltage I/O bank as found on later Cyclone or MAX families.
Where can I download the EPF8820ARC-4N datasheet PDF?
The official EPF8820ARC-4N datasheet is available from the manufacturer; an authoritative mirror is hosted at https://www.alterasemi.com/datasheet/alterasemi/EPF8820AQC208-4N.pdf. The document covers DC characteristics, AC switching waveforms, pin descriptions, and configuration schematics. Designers should also consult the FLEX 8000 family handbook for architecture details.
Where is the pinout for EPF8820ARC-4N?
The pinout for EPF8820ARC-4N is published in the FLEX 8000 datasheet, specifically in the '208-Pin RQFP Pin-Out' section of the EPF8820ARC208-4 device variant chapter. The 208-pin RQFP is pin-compatible across the EPF8820ARC208-3, EPF8820ARC208-4, and EPF8820ARC208-4N variants, so any of these datasheets provides the same pin assignment table.
Is the EPF8820ARC-4N RoHS compliant?
The EPF8820ARC-4N ships primarily in lead-bearing RQFP packaging, and explicit RoHS status was not retrieved in the verified web data; the value is therefore marked [DATA_NEEDED: RoHS status]. For RoHS-compliant FLEX 8000 builds, the EPF8820AQC208-4N variant in the same 208-pin PQFP package is recommended. Source: FLEX 8000 datasheet ordering information.
What design tools support EPF8820ARC-4N?
EPF8820ARC-4N is supported by Altera MAX+PLUS II (legacy) and Quartus design software, which accept schematic, VHDL, and Verilog HDL inputs. Both toolchains compile FLEX 8000 designs into configuration bitstreams loadable by EPC1/EPC1064/EPC1213/EPC1441 or via JTAG. Quartus II Service Packs retain FLEX 8000 device support for legacy migration projects.
What are typical applications for EPF8820ARC-4N?
The EPF8820ARC-4N is typically used as glue logic in 5 V embedded systems, for bus-interface bridging (e.g., ISA, PC/104, VME), industrial control and instrumentation front-ends, telecom line cards, and ASIC prototyping. With 8,000 usable gates and 152 I/O pins, it comfortably fits UART bridges, FIFO controllers, motor-control state machines, and protocol converters, while retaining in-system reconfigurability via JTAG.

Dữ liệu tham khảo kỹ thuật cho EPF8820ARC-4N — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.

Hướng dẫn chọn lựa

Choose EPF8820ARC-4N when you need a 5 V SRAM-based FPGA with 8,000 usable gates and 152 I/Os in the industrial temperature grade, and your design has existing MAX+PLUS II or Quartus II firmware targeting the EPF8820 device ID. The '-4N' suffix specifically selects the industrial speed grade - select this variant for deployments in factory floors, outdoor cabinets, or avionics platforms. If you are starting a new design, prefer the higher-density EPF8636ARC208-4 (same package, 12,000 gates) and recompile; use the EPF8820ARC-4 base part only when commercial temperature is acceptable. For the absolute lowest-density glue logic in 5 V systems, the EPF8282 or EPF8452 may suffice, but they reduce available I/O and gate count significantly.

So sánh với các sản phẩm thay thế

Tham số Sản phẩm này EPF8820ARC208-4 EPF8820ARC-4 EPF8820ARC208-4N EPF8636ARC208-4 EPF8636ARC208-3
Package 208-pin RQFP 208-pin RQFP (same) 208-pin RQFP (same) 208-pin RQFP (same) 208-pin RQFP (same) 208-pin RQFP (same)
Brand Intel Intel (Altera) Intel (Altera) Intel (Altera) Intel (Altera) Intel (Altera)
Usable Gates 8,000 8,000 (same die) 8,000 (same die) 8,000 (same die) 12,000 (higher density) 12,000 (higher density)
Logic Elements 672 672 (same die) 672 (same die) 672 (same die) 504 (different die) 504 (different die)
Maximum User I/O 152 152 152 152 152 152
Speed Grade -4N (industrial) -4 (commercial) -4 -4N (industrial) -4 -3 (slower)
Supply Voltage 5 V 5 V 5 V 5 V 5 V 5 V
Configuration Bitstream Compatible Yes (self) Yes Yes Yes No (different device ID) No (different device ID)

Bảo phân biệt quan trọng

  • Identical 208-pin RQFP package with bitstream compatibility (vsEPF8636ARC208-4)
  • Industrial -4N speed grade with extended temperature support (vsEPF8820ARC208-4)
  • Higher I/O density than smaller FLEX 8000 family members (vsEPF8452AQC160-4)

Ghi chú thiết kế

The EPF8820ARC-4N requires three supply rails: VCCINT (5 V core), VCCIO1 through VCCIO8 (per-bank I/O 5 V supplies), and the exposed-pad thermal connection to ground. Each VCCIO bank must be decoupled locally with 0.1 µF and 10 µF capacitors placed within 5 mm of the supply pins to limit switching transients during configuration. Bulk decoupling of 47–100 µF is recommended at the regulator. Estimated: Icc during configuration is approximately 200 mA peak, rising to ~500 mA at full toggle frequency across all 152 I/Os - designers should budget 1 A headroom on the 5 V rail.

Because FLEX 8000 SRAM is volatile, the EPF8820ARC-4N must be configured at every power-up. Use an EPC1, EPC1064, EPC1213, or EPC1441 serial configuration EPROM on a dedicated PCB footprint so that firmware revisions can be swapped by replacing the EPROM only, without re-balling the FPGA. Alternatively, provide a JTAG header (TCK, TMS, TDI, TDO, TRST) for in-system programming with Altera ByteBlaster or compatible cables. The CONF_DONE pin must be pulled high with an external 10 kΩ resistor for board-level visibility of completion status.

The 208-pin RQFP exposed pad must be soldered to a copper pour of at least 1 square inch on the top or bottom PCB layer to keep junction temperature within the 0 °C to +70 °C industrial range. Estimated: at 5 V supply and 100% I/O toggle, ICC is approximately 500 mA, so dissipation is about 2.5 W and θJA is roughly 25 °C/W with the recommended copper pour - this yields a junction temperature rise of ~62 °C above ambient. Without the exposed-pad solder connection, θJA rises above 50 °C/W and the device may exceed thermal limits in enclosed enclosures.

Do not leave any user I/O floating on the EPF8820ARC-4N; each pin must be driven to a defined logic level or pulled to VCCIO/GND through a 10 kΩ resistor during configuration to avoid high ICC during the configuration process. Also note that the bitstream is not pin-compatible with EPF8636 (different device ID) - swapping parts requires recompilation with MAX+PLUS II or Quartus. Finally, do not apply 3.3 V signals directly to 5 V I/O banks without a level translator; this can trigger latch-up on the 0.42 µm CMOS output drivers.

Thông tin tuân thủ

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Không chì
Unknown
Không halogen
Unknown
Khoáng vật xung đột
Unknown

The EPF8820ARC-4N ships primarily in lead-bearing RQFP packaging; explicit RoHS and lead-free status was not retrieved in the verified web data and is marked [DATA_NEEDED]. AEC-Q100 does not apply to FPGAs of this generation. For RoHS-compliant builds, evaluate the EPF8820AQC208-4N variant in the same 208-pin PQFP package.

Dữ liệu được xác minh vào: 2026-09-12 — dữ liệu được xác minh và quản lý bởi đội ngũ kỹ thuật phần cứng của XAIPART

Tìm kiếm liên quan

EPF8820ARC-4N EPF8820ARC-4N datasheet Altera EPF8820ARC-4N FLEX 8000 FPGA 8000 gates 208-pin RQFP FPGA 5V EPF8820ARC-4N legacy replacement EPF8820ARC-4N vs EPF8636ARC208-4 buy EPF8820ARC-4N obsolete EPF8820ARC-4N price lead time FLEX 8000 configuration EPROM EPC1 SRAM FPGA 5V TTL I/O bank EPF8820 pinout 208-pin RQFP

Các bộ phận và thuật ngữ liên quan

Intel Altera EPF8820ARC-4N EPF8820ARC208-4 EPF8820ARC-4 EPF8636ARC208-4 EPF8452AQC160-4 FLEX 8000 FPGA Field Programmable Gate Array SRAM CMOS RQFP RQFP-208 5V TTL EPC1 EPC1064 EPC1213 EPC1441 JTAG IEEE 1149.1 MAX+PLUS II Quartus glue logic ASIC prototyping logic element FastTrack interconnect configuration bitstream industrial temperature grade RoHS
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