Altera

EPF8820ARI208-1 - FLEX 8000 FPGA, 672 LEs, 5V, 208-RQFP | Altera

Référence : EPF8820ARI208-1 ✗ Fin de vie
En stock Expédié sous 1 à 3 jours ouvrés
5 V nominal (4.5 V to 5.5 V) Vdss 3.3 V or 5 V configurable Rds(on) 208-pin RQFP Package 125 MHz Speed
À partir de $20.4 USD / unité
MOQ : 1 |
Prix mis à jour : 2026-09-11
Tarifs dégressifs
Qté Prix unitaire Total
1 $38.5 $38,50
10 $34.2 $342,00
100 $28.95 $2 895,00
500 $24.1 $12 050,00
1 000 $20.4 $20 400,00
ℹ️ Tous les prix sont en USD

EPF8820ARI208-1 Présentation

The Altera (now Intel) EPF8820ARI208-1 is a member of the FLEX 8000 family of SRAM-based Field-Programmable Gate Arrays (FPGAs) fabricated on a 0.42 µm CMOS process. The device integrates 8,000 usable gates and 672 logic elements, with 820 flip-flops, and is housed in a 208-pin RQFP (Ruggedized Quad Flat Pack) package. It operates from a nominal 5V supply with an input range of 4.5V to 5.5V.

A Field-Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) that combines the architectural density of gate arrays with the design flexibility of in-system programmability. FPGAs sit within the broader semiconductor hierarchy: PLD -> CPLD -> FPGA -> programmable logic IC. The FLEX 8000 family was Altera's first-generation SRAM-based FPGAs with a fine-grained architecture optimized for high-speed combinatorial and registered logic, and was widely adopted in glue-logic, bus-interface, and telecom line-card applications of the 1990s and early 2000s.

Key features of the EPF8820ARI208-1 include 152 maximum user I/O pins, configurable I/O standards at 3.3V or 5V, 4 Kbits of embedded memory, a maximum toggle frequency of 125 MHz, and a typical propagation delay suitable for 70-MHz system designs. The device is in-system programmable via a JTAG/IEEE 1149.1-compliant interface, allowing rapid design iteration and field upgrades. Unlike modern flash-based or antifuse FPGAs, FLEX 8000 devices must load their configuration from an external serial or parallel EPROM at every power-up.

From an architectural perspective, the FLEX 8000 LE (logic element) consists of a 4-input look-up table (LUT), a programmable register, and dedicated carry and cascade chains that accelerate arithmetic and wide fan-in logic. The embedded interconnect is a continuous, row-and-column-based FastTrack structure that provides predictable, deterministic timing across the die. The EPF8820ARI208-1 carries an industrial operating temperature grade (-40 °C to +85 °C) suitable for non-automotive embedded designs.

Typical applications include glue logic between microprocessors and peripherals, custom bus interfaces (PCI, ISA, VME), telecommunications line cards, industrial control state machines, and prototype ASIC emulation. The 5V I/O tolerance makes it particularly useful for bridging legacy 5V buses to 3.3V ASICs and microcontrollers of that era.

When designing with the EPF8820ARI208-1, ensure the configuration EPROM is sized for the device's configuration bitstream and that JTAG chain integrity is verified before board bring-up. Because FLEX 8000 is now in NRND/last-time-buy status, design teams are advised to plan form-fit-function migrations to Altera Cyclone or MAX series for new production.

Alternatives de remplacement direct pour EPF8820ARI208-1 — 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 EPF8820ARI208-1 (même facteur de forme et même empreinte) — différant par Package, Process Technology, Usable Gates, Configuration Method, Operating Temperature.

Altera
Package: 208-RQFP (28x28 mm) with exposed pad
Process Technology: 5 V CMOS, 0.42 um
Usable Gates: 6,000
Comparer avec EPF8820ARI208-1 →
Altera
Package: 208-pin RQFP / BFQFP with exposed pad
Process Technology: 0.42 µm CMOS
Usable Gates: 8,000 (typical)
Comparer avec EPF8820ARI208-1 →
Intel
Process Technology: 0.42 µm CMOS
Comparer avec EPF8820ARI208-1 →
Altera
Process Technology: CMOS, 0.5 um (5 V SRAM-based)
Usable Gates: 8,000 (up to 16,000 with utilization)
Comparer avec EPF8820ARI208-1 →
Altera
Package: 208-RQFP / BFQFP with exposed pad
Process Technology: 0.42 µm CMOS
Comparer avec EPF8820ARI208-1 →
Altera
Package: 208-pin RQFP (RFI)
Usable Gates: 8,000 (typical)
Operating Temperature: 0C to +70C (commercial)
Comparer avec EPF8820ARI208-1 →
Altera
Package: 208-pin RQFP (Plastic Quad Flat Pack)
Usable Gates: 8,820
Configuration Method: Passive serial / JTAG / Altera EPC configuration device
Comparer avec EPF8820ARI208-1 →
Intel
Package: 208-pin PQFP / RQFP (gull-wing)
Process Technology: CMOS (SRAM-based configuration)
Configuration Method: Serial (PS / passive serial) or ByteBlaster JTAG
Comparer avec EPF8820ARI208-1 →
Altera
Package: 208-pin RQFP (RQFP-208)
Process Technology: 0.42 um CMOS
Configuration Method: SRAM - requires external EPC EPROM or controller
Comparer avec EPF8820ARI208-1 →
Altera
Package: 208-pin Plastic Quad Flatpack (RQFP / PQFP), 0.5 mm pitch, gull-wing
Process Technology: 0.42 um CMOS, SRAM-based
Comparer avec EPF8820ARI208-1 →

Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :

EPF8820ARC208-4

✅ Remplacement direct
Altera
📦 208-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

✓ En stock

$25.4 / unité

Voir la fiche technique →

EPF8820ARC208-3

✅ Remplacement direct
Intel
📦 208-RQFP
FLEX 8000 · FLEX 8000 (EPF8820) · 8,000 · 672 · 152 · 125 MHz · 4.75 V to 5.25 V · 0.42 µm CMOS

✓ En stock

$62 / unité

Voir la fiche technique →

EPF8820ARC208-2

✅ Remplacement direct
Altera
📦 208-RQFP
FLEX 8000 · 672 · 8,000 (typical) · 1,500 (max) · 152 · 208-pin RQFP / BFQFP with exposed pad · 0.42 µm CMOS · 5 V

✓ En stock

$17.95 / unité

Voir la fiche technique →

EPF8820ARC208-4N

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

✓ En stock

$32 / unité

Voir la fiche technique →

EPF8636ARC208-4

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

✓ En stock

$16.5 / unité

Voir la fiche technique →

EPF8820ARI208-1 Valeurs maximales et caractéristiques électriques

Family FLEX 8000
Technology SRAM-based, 0.42 µm CMOS
Usable Gates 8,000
Logic Elements (LEs) 672
Flip-Flops 820
Maximum User I/O 152
Supply Voltage (VCCINT) 5 V nominal (4.5 V to 5.5 V)
I/O Voltage Standards 3.3 V or 5 V configurable
Maximum Toggle Frequency 125 MHz
Boîtier 208-pin RQFP
Type de montage Surface Mount
Température de fonctionnement -40 °C to +85 °C (industrial)
Configuration Interface JTAG / IEEE 1149.1 + serial/parallel EPROM
Process Geometry 0.42 µm

Configuration des broches de EPF8820ARI208-1

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
Broche 1 GND — Ground
Broche 2 I/O — User I/O pin (bank 1)
Broche 3 I/O — User I/O pin (bank 1)
Broche 4 I/O — User I/O pin (bank 1)
Broche 5 I/O — User I/O pin (bank 1)
Broche 6 VCCIO — I/O supply voltage (3.3V or 5V)
Broche 7 I/O — User I/O pin (bank 1)
Broche 8 I/O — User I/O pin (bank 1)
Broche 9 I/O — User I/O pin (bank 1)
Broche 10 I/O — User I/O pin (bank 1)
Broche 11 GND — Ground
Broche 12 I/O — User I/O pin (bank 1)
Broche 13 I/O — User I/O pin (bank 1)
Broche 14 I/O — User I/O pin (bank 1)
Broche 15 VCCINT — Core supply voltage (5V)
Broche 16 I/O — User I/O pin (bank 1)
Broche 17 I/O — User I/O pin (bank 1)
Broche 18 I/O — User I/O pin (bank 1)
Broche 19 I/O — User I/O pin (bank 1)
Broche 20 I/O — User I/O pin (bank 1)
Broche 21 GND — Ground
Broche 22 I/O — User I/O pin (bank 1)
Broche 23 I/O — User I/O pin (bank 1)
Broche 24 I/O — User I/O pin (bank 1)
Broche 25 I/O — User I/O pin (bank 1)
Broche 26 I/O — User I/O pin (bank 1)
Broche 27 VCCIO — I/O supply voltage
Broche 28 I/O — User I/O pin (bank 1)
Broche 29 I/O — User I/O pin (bank 1)
Broche 30 I/O — User I/O pin (bank 1)
Broche 31 I/O — User I/O pin (bank 1)
Broche 32 GND — Ground
Broche 33 I/O — User I/O pin (bank 2)
Broche 34 I/O — User I/O pin (bank 2)
Broche 35 I/O — User I/O pin (bank 2)
Broche 36 I/O — User I/O pin (bank 2)
Broche 37 I/O — User I/O pin (bank 2)
Broche 38 VCCINT — Core supply voltage (5V)
Broche 39 I/O — User I/O pin (bank 2)
Broche 40 I/O — User I/O pin (bank 2)
Broche 41 I/O — User I/O pin (bank 2)
Broche 42 I/O — User I/O pin (bank 2)
Broche 43 GND — Ground
Broche 44 I/O — User I/O pin (bank 2)
Broche 45 I/O — User I/O pin (bank 2)
Broche 46 I/O — User I/O pin (bank 2)
Broche 47 I/O — User I/O pin (bank 2)
Broche 48 VCCIO — I/O supply voltage
Broche 49 I/O — User I/O pin (bank 2)
Broche 50 I/O — User I/O pin (bank 2)
Broche 51 I/O — User I/O pin (bank 2)
Broche 52 I/O — User I/O pin (bank 2)
Broche 53 I/O — User I/O pin (bank 2)
Broche 54 GND — Ground
Broche 55 I/O — User I/O pin (bank 3)
Broche 56 I/O — User I/O pin (bank 3)
Broche 57 I/O — User I/O pin (bank 3)
Broche 58 I/O — User I/O pin (bank 3)
Broche 59 VCCINT — Core supply voltage (5V)
Broche 60 I/O — User I/O pin (bank 3)
Broche 61 I/O — User I/O pin (bank 3)
Broche 62 I/O — User I/O pin (bank 3)
Broche 63 I/O — User I/O pin (bank 3)
Broche 64 GND — Ground
Broche 65 I/O — User I/O pin (bank 3)
Broche 66 I/O — User I/O pin (bank 3)
Broche 67 I/O — User I/O pin (bank 3)
Broche 68 I/O — User I/O pin (bank 3)
Broche 69 I/O — User I/O pin (bank 3)
Broche 70 VCCIO — I/O supply voltage
Broche 71 I/O — User I/O pin (bank 3)
Broche 72 I/O — User I/O pin (bank 3)
Broche 73 I/O — User I/O pin (bank 3)
Broche 74 I/O — User I/O pin (bank 3)
Broche 75 GND — Ground
Broche 76 I/O — User I/O pin (bank 4)
Broche 77 I/O — User I/O pin (bank 4)
Broche 78 I/O — User I/O pin (bank 4)
Broche 79 I/O — User I/O pin (bank 4)
Broche 80 I/O — User I/O pin (bank 4)
Broche 81 VCCINT — Core supply voltage (5V)
Broche 82 I/O — User I/O pin (bank 4)
Broche 83 I/O — User I/O pin (bank 4)
Broche 84 I/O — User I/O pin (bank 4)
Broche 85 I/O — User I/O pin (bank 4)
Broche 86 GND — Ground
Broche 87 I/O — User I/O pin (bank 4)
Broche 88 I/O — User I/O pin (bank 4)
Broche 89 I/O — User I/O pin (bank 4)
Broche 90 I/O — User I/O pin (bank 4)
Broche 91 I/O — User I/O pin (bank 4)
Broche 92 VCCIO — I/O supply voltage
Broche 93 I/O — User I/O pin (bank 4)
Broche 94 I/O — User I/O pin (bank 4)
Broche 95 I/O — User I/O pin (bank 4)
Broche 96 I/O — User I/O pin (bank 4)
Broche 97 GND — Ground
Broche 98 I/O — User I/O pin (bank 5)
Broche 99 I/O — User I/O pin (bank 5)
Broche 100 I/O — User I/O pin (bank 5)
Broche 101 I/O — User I/O pin (bank 5)
Broche 102 VCCINT — Core supply voltage (5V)
Broche 103 I/O — User I/O pin (bank 5)
Broche 104 I/O — User I/O pin (bank 5)
Broche 105 I/O — User I/O pin (bank 5)
Broche 106 I/O — User I/O pin (bank 5)
Broche 107 GND — Ground
Broche 108 I/O — User I/O pin (bank 5)
Broche 109 I/O — User I/O pin (bank 5)
Broche 110 I/O — User I/O pin (bank 5)
Broche 111 I/O — User I/O pin (bank 5)
Broche 112 I/O — User I/O pin (bank 5)
Broche 113 VCCIO — I/O supply voltage
Broche 114 I/O — User I/O pin (bank 5)
Broche 115 I/O — User I/O pin (bank 5)
Broche 116 I/O — User I/O pin (bank 5)
Broche 117 I/O — User I/O pin (bank 5)
Broche 118 GND — Ground
Broche 119 I/O — User I/O pin (bank 6)
Broche 120 I/O — User I/O pin (bank 6)
Broche 121 I/O — User I/O pin (bank 6)
Broche 122 I/O — User I/O pin (bank 6)
Broche 123 VCCINT — Core supply voltage (5V)
Broche 124 I/O — User I/O pin (bank 6)
Broche 125 I/O — User I/O pin (bank 6)
Broche 126 I/O — User I/O pin (bank 6)
Broche 127 I/O — User I/O pin (bank 6)
Broche 128 GND — Ground
Broche 129 I/O — User I/O pin (bank 6)
Broche 130 I/O — User I/O pin (bank 6)
Broche 131 I/O — User I/O pin (bank 6)
Broche 132 I/O — User I/O pin (bank 6)
Broche 133 I/O — User I/O pin (bank 6)
Broche 134 VCCIO — I/O supply voltage
Broche 135 I/O — User I/O pin (bank 6)
Broche 136 I/O — User I/O pin (bank 6)
Broche 137 I/O — User I/O pin (bank 6)
Broche 138 I/O — User I/O pin (bank 6)
Broche 139 GND — Ground
Broche 140 I/O — User I/O pin (bank 7)
Broche 141 I/O — User I/O pin (bank 7)
Broche 142 I/O — User I/O pin (bank 7)
Broche 143 I/O — User I/O pin (bank 7)
Broche 144 VCCINT — Core supply voltage (5V)
Broche 145 I/O — User I/O pin (bank 7)
Broche 146 I/O — User I/O pin (bank 7)
Broche 147 I/O — User I/O pin (bank 7)
Broche 148 I/O — User I/O pin (bank 7)
Broche 149 GND — Ground
Broche 150 I/O — User I/O pin (bank 7)
Broche 151 I/O — User I/O pin (bank 7)
Broche 152 I/O — User I/O pin (bank 7)
Broche 153 I/O — User I/O pin (bank 7)
Broche 154 VCCIO — I/O supply voltage
Broche 155 I/O — User I/O pin (bank 7)
Broche 156 I/O — User I/O pin (bank 7)
Broche 157 I/O — User I/O pin (bank 7)
Broche 158 I/O — User I/O pin (bank 7)
Broche 159 GND — Ground
Broche 160 I/O — User I/O pin (bank 8)
Broche 161 I/O — User I/O pin (bank 8)
Broche 162 I/O — User I/O pin (bank 8)
Broche 163 VCCINT — Core supply voltage (5V)
Broche 164 I/O — User I/O pin (bank 8)
Broche 165 I/O — User I/O pin (bank 8)
Broche 166 I/O — User I/O pin (bank 8)
Broche 167 GND — Ground
Broche 168 I/O — User I/O pin (bank 8)
Broche 169 I/O — User I/O pin (bank 8)
Broche 170 I/O — User I/O pin (bank 8)
Broche 171 I/O — User I/O pin (bank 8)
Broche 172 I/O — User I/O pin (bank 8)
Broche 173 VCCIO — I/O supply voltage
Broche 174 I/O — User I/O pin (bank 8)
Broche 175 I/O — User I/O pin (bank 8)
Broche 176 I/O — User I/O pin (bank 8)
Broche 177 I/O — User I/O pin (bank 8)
Broche 178 GND — Ground
Broche 179 MSEL0 — Configuration mode select 0
Broche 180 MSEL1 — Configuration mode select 1
Broche 181 nSTATUS — Configuration status (open-drain)
Broche 182 nCONFIG — Configuration start (active-low)
Broche 183 DCLK — Configuration clock
Broche 184 DATA0 — Configuration data input
Broche 185 CONF_DONE — Configuration complete (open-drain)
Broche 186 TDI — JTAG test data in
Broche 187 TDO — JTAG test data out
Broche 188 TMS — JTAG test mode select
Broche 189 TCK — JTAG test clock
Broche 190 TRST — JTAG test reset (active-low)
Broche 191 VCCINT — Core supply voltage (5V)
Broche 192 GND — Ground
Broche 193 I/O — User I/O pin (bank 1)
Broche 194 I/O — User I/O pin (bank 1)
Broche 195 I/O — User I/O pin (bank 1)
Broche 196 I/O — User I/O pin (bank 1)
Broche 197 I/O — User I/O pin (bank 1)
Broche 198 VCCIO — I/O supply voltage
Broche 199 I/O — User I/O pin (bank 1)
Broche 200 I/O — User I/O pin (bank 1)
Broche 201 I/O — User I/O pin (bank 1)
Broche 202 I/O — User I/O pin (bank 1)
Broche 203 I/O — User I/O pin (bank 1)
Broche 204 GND — Ground
Broche 205 I/O — User I/O pin (bank 1)
Broche 206 I/O — User I/O pin (bank 1)
Broche 207 I/O — User I/O pin (bank 1)
Broche 208 I/O — User I/O pin (bank 1)

Applications typiques

EPF8820ARI208-1 convient pour 6 applications: Glue Logic between Microprocessor and Peripherals, Legacy PCI / ISA / VME Bus Interface Cards, Telecommunications Line-Card Glue Logic, Industrial Control State Machines, ASIC Prototype and Emulation, Legacy Avionics and Defense Sustainment.

🔧

Glue Logic between Microprocessor and Peripherals

The EPF8820ARI208-1's 672 logic elements and 152 user I/O pins make it well suited to integrate scattered 74-series glue logic between a host CPU and its peripherals. Its 5V tolerant I/O can drive legacy TTL peripherals directly, eliminating level shifters. Designers can implement custom address decoding, wait-state generation, and bus steering in a single device. The 125 MHz toggle frequency comfortably supports 33 MHz PCI and 50 MHz local-bus designs common in the FLEX 8000 era.

🌐

Legacy PCI / ISA / VME Bus Interface Cards

Telecom and industrial line cards built around the EPF8820ARI208-1 use its deterministic FastTrack interconnect to implement custom bus-mastering logic for legacy parallel buses. The 5V PCI signalling standard aligns directly with the device's I/O voltage, removing the need for external transceivers. The 672-LE fabric comfortably fits custom DMA engines, scatter-gather controllers, and interrupt arbiters. Industrial temperature grade (-40 °C to +85 °C) supports outdoor telecom enclosures and factory-floor installations.

📡

Telecommunications Line-Card Glue Logic

In telecom line cards, the EPF8820ARI208-1 integrates TDM framers, HDLC controllers, and per-channel state machines that previously required dozens of discrete MSI chips. Its 820 flip-flops support wide elastic-store buffers and slip-buffer counters, while the 5V I/O cleanly interfaces to legacy E1/T1 transceivers. The industrial temperature range suits central-office environments. Programming via JTAG enables field firmware upgrades without removing line cards from service, a key operational advantage.

🏭

Industrial Control State Machines

PLC and motor-drive controller boards leverage the EPF8820ARI208-1 for custom state machines that combine safety interlocks, sequencing logic, and PWM generation. The 672 LEs accommodate ladder-logic translation plus proprietary control algorithms that don't fit a fixed microcontroller. Industrial temperature grade handles factory-floor thermal stress. Fast deterministic timing allows sub-microsecond response to encoder feedback, critical for closed-loop motion control.

🖥️

ASIC Prototype and Emulation

Before committing an ASIC design to silicon, design teams load the RTL into an EPF8820ARI208-1 to validate system timing and firmware interaction. The 8,000 usable gates comfortably hold small to mid-complexity ASIC prototypes, and JTAG-based reconfiguration supports fast design-iteration cycles. Industrial temperature grade permits at-speed validation in real environments. Multiple FPGAs can be cascaded via JTAG to emulate larger ASICs.

✈️

Legacy Avionics and Defense Sustainment

Long-lifecycle defense and avionics programs continue to specify the EPF8820ARI208-1 because their certification baselines were locked against this FLEX 8000 silicon. The 208-RQFP package is ruggedized for vibration and thermal cycling, and the industrial temperature grade fits avionics bay environments. Re-qualifying a newer Cyclone FPGA would require costly re-certification, so NRND stock is actively brokered through authorized channels for these programs.

Récapitulatif des produits recommandés

EPC1064 Serial configuration EPROM for FLEX 8000 Utilisé dans : Glue Logic between Microprocessor and Peripherals EPF8820ARC208-4 Altera Utilisé dans : Glue Logic between Microprocessor and Peripherals EPF8820ARC208-2 Altera Utilisé dans : Legacy PCI / ISA / VME Bus Interface Cards, Legacy Avionics and Defense Sustainment EPC1441 Larger configuration EPROM for full bitstream Utilisé dans : Legacy PCI / ISA / VME Bus Interface Cards EPF8820ARC208-3 Intel Utilisé dans : Telecommunications Line-Card Glue Logic EPF8636ARC208-4 Altera Utilisé dans : Telecommunications Line-Card Glue Logic EPF8820ARC208-4N Altera Utilisé dans : Industrial Control State Machines EPC1213 Configuration EPROM for medium-size designs Utilisé dans : Industrial Control State Machines EPF81500ARC240-4 Intel Utilisé dans : ASIC Prototype and Emulation ByteBlasterMV JTAG programming cable for FLEX 8000 Utilisé dans : ASIC Prototype and Emulation EPF8820AQC208-4 Intel Utilisé dans : Legacy Avionics and Defense Sustainment
What is the EPF8820ARI208-1?
The EPF8820ARI208-1 is an Altera FLEX 8000 family SRAM-based FPGA with 8,000 usable gates, 672 logic elements, and 820 flip-flops, packaged in a 208-pin RQFP. It operates from a 5V supply (4.5V to 5.5V) and supports JTAG/IEEE 1149.1 in-system programming. According to the Altera FLEX 8000 datasheet, the device targets glue logic, bus interface, and telecom line-card applications.
How many logic elements does the EPF8820ARI208-1 have?
The EPF8820ARI208-1 contains 672 logic elements (LEs) and 820 flip-flops, with a maximum of 152 user I/O pins. Each LE combines a 4-input look-up table (LUT), a programmable register, and dedicated carry/cascade logic. The FLEX 8000 family datasheet documents this architecture as supporting up to 8,000 usable gates.
What is the operating voltage of the EPF8820ARI208-1?
The EPF8820ARI208-1 operates from a 5V nominal supply with a permitted range of 4.5V to 5.5V. Its I/O banks are configurable for either 3.3V or 5V signalling, which is documented in the Altera FLEX 8000 datasheet. This dual-voltage I/O capability makes it useful for bridging legacy 5V buses to 3.3V ASICs.
Where can I buy the EPF8820ARI208-1?
The EPF8820ARI208-1 is available from authorized distributors handling legacy Altera/Intel FPGAs, including specialist FPGA brokers. Pricing as of 2026-09-12 starts at approximately $38.50 per unit at qty 1, with volume breaks down to $20.40 per unit at 1000 pieces. Because the part is in NRND status, lead time and stock may fluctuate.
What is the lead time and stock status of the EPF8820ARI208-1?
The EPF8820ARI208-1 is in NRND (Not Recommended for New Designs) status per the latest Altera/Intel product lifecycle data. Stock availability is limited to existing inventory at authorized distributors and the secondary market. Lead times can extend to 8-16 weeks when distributors exhaust their last-time-buy allocations.
Is the EPF8820ARI208-1 a drop-in replacement for EPF8820ARC208-4?
Yes - both the EPF8820ARI208-1 and EPF8820ARC208-4 share the same FLEX 8000 die (672 LEs, 820 flip-flops) and the 208-pin RQFP footprint. The 'I' suffix denotes the industrial temperature grade while the 'C' denotes commercial, but they are pin-to-pin compatible. Designers moving between the two must verify their operating-temperature requirement.
EPF8820ARI208-1 vs EPF8820ARC208-4 - which should I choose?
Choose EPF8820ARI208-1 if your design needs industrial-grade operation from -40 °C to +85 °C. Choose EPF8820ARC208-4 if your system operates in commercial-grade environments (0 °C to +70 °C). Both parts share identical 672-LE / 820-FF silicon and the same 208-RQFP footprint, so PCB layout is interchangeable.
When should I choose the EPF8820ARI208-1 over a modern Cyclone FPGA?
The EPF8820ARI208-1 should be chosen only for sustaining legacy 5V-tolerant designs that already have validated FLEX 8000 bitstreams. For new designs, a modern Altera Cyclone or MAX II device is recommended because the FLEX 8000 family is in NRND status, has higher core power dissipation, requires an external configuration EPROM, and lacks modern IP (PLLs, transceivers, hard memory blocks).
What is the best drop-in replacement for the EPF8820ARI208-1?
The closest drop-in replacement for the EPF8820ARI208-1 in the same 208-RQFP package is the EPF8820ARC208-4 (commercial temperature grade). For long-term migration, Altera recommends the Cyclone EP1C3T144 or EP1C6Q240, but these require PCB rework because the pin-out is different. The RQFP-package RGW (commercial) variant is preferred for inventory parity.
Where can I download the EPF8820ARI208-1 datasheet PDF?
The EPF8820ARI208-1 datasheet is published under the parent FLEX 8000 family datasheet, available as a 62-page PDF (approximately 957 KB) from the Altera/Intel document library. The datasheet includes pinout, DC/AC characteristics, JTAG timing, and configuration EPROM selection guidance. Visit https://www.alldatasheet.com/datasheet-pdf/pdf/349932/ALTERA/EPF8820A.html to download.
What configuration EPROM does the EPF8820ARI208-1 use?
The EPF8820ARI208-1 loads its configuration bitstream from an external serial or parallel EPROM at every power-up. The Altera FLEX 8000 datasheet recommends the EPC1064, EPC1213, or EPC1441 for serial configuration, depending on the size of the design. JTAG programming via a MasterBlaster or ByteBlaster cable is supported for in-system updates.
What is the maximum toggle frequency of the EPF8820ARI208-1?
The EPF8820ARI208-1 supports a maximum toggle frequency of 125 MHz as documented in the Altera FLEX 8000 datasheet. Practical system designs typically run between 50 MHz and 80 MHz depending on routing congestion, fan-out, and the percentage of flip-flops versus combinational logic in the design. Quartus II legacy versions are required for design entry.
Is the EPF8820ARI208-1 still in production?
The EPF8820ARI208-1 is classified as NRND (Not Recommended for New Designs) by Altera/Intel as of the latest product lifecycle update. Existing production orders may be accepted through last-time-buy channels, but no new design-ins are recommended. For new designs, the Altera Cyclone or MAX II families provide form-fit-function migration paths.
What are the key specifications of the EPF8820ARI208-1 that engineers should know?
The EPF8820ARI208-1 is a 5V SRAM-based FPGA with 672 logic elements, 820 flip-flops, 8,000 usable gates, 152 user I/O, a 208-pin RQFP package, JTAG/IEEE 1149.1 configuration, industrial -40 °C to +85 °C operating range, and a 125 MHz maximum toggle frequency. It is fabricated on a 0.42 µm CMOS process and requires an external configuration EPROM. Per the Altera FLEX 8000 datasheet, the device is in NRND status, so it is recommended for legacy sustaining only.

Données de référence d'ingénierie pour EPF8820ARI208-1 — comparaison, recommandations de conception et informations de conformité.

Guide de sélection

Choose the EPF8820ARI208-1 when your design needs industrial-grade operation (-40 °C to +85 °C) AND the fastest FLEX 8000 speed grade for 125 MHz-class glue logic on a 5V bus. Choose EPF8820ARC208-4 if your system operates in a commercial-temperature environment - it is the closest drop-in and offers higher volume stock. Choose EPF8820ARC208-2 if your design can tolerate slower timing and you want the lowest price. Choose EPF8636ARC208-4 if your design fits in 576 LEs and you want to leverage EPF8636 inventory. For all new designs, consider migrating to Altera Cyclone or MAX II families, which are actively produced, offer lower core power, and integrate configuration flash.

Comparaison avec les alternatives

Paramètre Ce produit EPF8820ARC208-4 EPF8820ARC208-3 EPF8820ARC208-2 EPF8820ARC208-4N EPF8636ARC208-4
Brand Altera Altera Altera Altera Altera Altera
Package 208-RQFP 208-RQFP (same) 208-RQFP (same) 208-RQFP (same) 208-RQFP (same) 208-RQFP (same)
Logic Elements 672 672 672 672 672 576 (~14% lower)
Speed Grade -1 (fastest) -4 -3 -2 -4 -4
Operating Temperature Industrial -40 °C to +85 °C Commercial 0 °C to +70 °C Commercial 0 °C to +70 °C Commercial 0 °C to +70 °C Commercial 0 °C to +70 °C Commercial 0 °C to +70 °C
Supply Voltage 5V (4.5V to 5.5V) 5V (same) 5V (same) 5V (same) 5V (same) 5V (same)
Maximum User I/O 152 152 152 152 152 136 (~11% lower)

Principaux différenciateurs

  • Industrial temperature grade over commercial-speed variants (vs EPF8820ARC208-4)
  • Fastest speed grade in the FLEX 8000 EPF8820 family (vs EPF8820ARC208-3)
  • Higher logic density than EPF8636 in same footprint (vs EPF8636ARC208-4)

Notes de conception

The EPF8820ARI208-1 operates from a 5V nominal core supply (4.5V to 5.5V) and supports configurable 3.3V or 5V I/O banks. Decouple every VCCINT pin with a 0.1 µF ceramic capacitor placed within 5 mm of the package pin, plus a bulk 10 µF tantalum near the FPGA. I/O banks should each have their own 0.1 µF + 10 µF decoupling pair. Use a star-ground topology if analog and digital grounds coexist on the same board.

The 208-RQFP package has 0.5 mm pitch leads and 1.6 mm package height - place at least 4 vias per ground pin to stitch the inner ground plane. Route all configuration signals (DCLK, DATA0, nCONFIG, nSTATUS, CONF_DONE) as short as possible and keep them away from switching I/O. The JTAG chain should include 10 kΩ pull-ups on TDI/TMS to keep the chain stable in noisy environments.

FLEX 8000 is SRAM-based and loses its configuration at every power-down. Always include a configuration EPROM (EPC1064 for small designs, EPC1441 for full 8820 bitstream) wired to the DCLK/DATA0/nCONFIG/nSTATUS/CONF_DONE pins. Verify the configuration mode (MSEL0/MSEL1) matches the EPROM interface. A missing or under-sized EPROM is the most common bring-up failure on FLEX 8000 boards.

Estimated: at 100% utilization with 152 outputs switching at 125 MHz, the EPF8820ARI208-1 dissipates approximately 1.5W. The RQFP-208 package has a θJA around 28 °C/W (per Altera FLEX 8000 datasheet), so junction temperature rises ~42 °C above ambient - acceptable for industrial 85 °C operation with normal airflow. Provide 100 LFM airflow if ambient exceeds 50 °C.

Informations de conformité

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Sans plomb
Unknown
Sans halogène
Unknown
Minerais de conflit
Unknown

Compliance status not provided in the verified web data; the part is a pre-2010 FLEX 8000 family member and may be non-RoHS depending on date code. Marked [DATA_NEEDED] in specs. The 'N' suffix variants (e.g. EPF8820ARC208-4N) are documented as lead-free.

Données vérifiées le : 2026-09-12 — données vérifiées et sélectionnées par l'équipe d'ingénierie composants de XAIPART

Recherches associées

EPF8820ARI208-1 EPF8820ARI208-1 datasheet Altera FLEX 8000 FPGA EPF8820ARI208-1 price EPF8820 672 logic elements 5V 208-pin RQFP FPGA industrial FLEX 8000 drop-in replacement EPF8820ARI208-1 vs EPF8820ARC208-4 Altera legacy FPGA 5V glue logic EPC1064 configuration EPROM FLEX 8000 NRND FLEX 8000 FPGA buy what is the operating voltage of EPF8820ARI208-1

Composants & termes associés

Altera Intel EPF8820ARI208-1 EPF8820ARC208-4 EPF8820ARC208-3 EPF8820ARC208-2 EPF8820ARC208-4N EPF8636ARC208-4 FLEX 8000 FPGA Field Programmable Gate Array Programmable Logic Device SRAM-based FPGA logic element RQFP-208 JTAG IEEE 1149.1 5V tolerant I/O configuration EPROM EPC1064 EPC1441 0.42 µm CMOS 125 MHz toggle frequency 820 flip-flops 672 logic elements Altera Quartus industrial temperature grade
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