EPF8820ARI208-1 - FLEX 8000 FPGA, 672 LEs, 5V, 208-RQFP | Altera
Référence : EPF8820ARI208-1 ✗ Fin de vie| 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 |
EPF8820ARI208-1 Présentation
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.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
EPF8820ARC208-4
✅ Remplacement direct✓ En stock
$25.4 / unité
Voir la fiche technique →EPF8820ARC208-3
✅ Remplacement direct✓ En stock
$62 / unité
Voir la fiche technique →EPF8820ARC208-2
✅ Remplacement direct✓ En stock
$17.95 / unité
Voir la fiche technique →EPF8820ARC208-4N
✅ Remplacement direct✓ En stock
$32 / unité
Voir la fiche technique →EPF8636ARC208-4
✅ Remplacement direct✓ 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
| 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour EPF8820ARI208-1 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
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
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.