EPF8820ATI144-2 - FLEX 8000 FPGA 672-LE PQFP Industrial | Intel
N.º da peça: EPF8820ATI144-2 ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $38.5 | $38,50 |
| 10 | $32.75 | $327,50 |
| 100 | $26.4 | $2.640,00 |
| 500 | $22.1 | $11.050,00 |
| 1.000 | $19.85 | $19.850,00 |
EPF8820ATI144-2 Visão geral
An FPGA (Field-Programmable Gate Array) is a semiconductor device built around an array of configurable logic blocks (CLBs), programmable interconnects, and I/O cells, allowing the designer to implement arbitrary digital logic after PCB fabrication. In the system hierarchy, the FLEX 8000 family sits under SRAM-based programmable logic -> programmable logic device -> logic IC -> integrated circuit. The EPF8820 targets glue-logic, bus-interface, and low-to-medium-density state-machine applications where a small ASIC would otherwise be required.
Key features include 1.7 ns pin-to-pin propagation delay through the FastTrack interconnect, 84 Logic Array Blocks (LABs), continuous FastTrack routing for predictable timing, and built-in JTAG (IEEE 1149.1) boundary-scan support. The 0.50 mm terminal-pitch PQFP-144 (S-PQFP-G144) package supports surface mounting and is compatible with standard SMT assembly lines. The device is configured at power-up from a serial PROM or microcontroller via the FLEX 8000 passive serial/parallel configuration scheme.
Architecturally, the EPF8820A uses an SRAM configuration cell, requiring an external boot device on every power cycle. Each LE contains a 4-input LUT, a programmable register, and a carry chain for arithmetic. The 84 LABs are arranged in rows and columns around the periphery, with 16 LEs per LAB and dedicated cascade chains for wide fan-in functions. The I/O ring supports 5V-tolerant inputs on a 5V VCCIO, plus programmable slew-rate and pull-up resistors.
Typical applications include industrial control glue logic, telecommunications backplane interface bridging, custom peripheral expansion for embedded microprocessors, and legacy 5V system upgrades that cannot move to 3.3V FPGAs. The 1.7 ns tPD also makes it useful for fast custom-state-machine replacement of discrete 74-series logic.
When designing, treat the EPF8820ATI144-2 as an SRAM FPGA: a configuration source (EPC1, EPC2, or a microcontroller) is mandatory because internal SRAM is volatile. Ensure VCC ramps monotonically per the FLEX 8000 handbook; an incomplete power-up can corrupt configuration and cause bus contention on the outputs. Place a 0.1 uF decoupling capacitor at every VCC/VCCIO pin and provide a low-impedance ground plane.
This page consolidates distributor pricing, real FLEX 8000 family drop-in alternatives, and practical design guidance beyond what is reproduced in the legacy Altera datasheet.
Alternativas drop-in para EPF8820ATI144-2 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com EPF8820ATI144-2 (mesmo formato e footprint) — diferindo em Package, Process Technology, Operating Temperature, Configuration Method, Usable Gates.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
EPF8820ATC144-2
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$19.85 / unidade
Ver ficha técnica →EPF8820ATI144-1
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$26 / unidade
Ver ficha técnica →EPF8820ATC144-3
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$9.25 / unidade
Ver ficha técnica →EPF8820ATC144-4
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$11.1 / unidade
Ver ficha técnica →EPF81188AQI208-3
✅ Drop-In✓ Em estoque
$45 / unidade
Ver ficha técnica →EPF8820ATI144-2 Classificações máximas e características elétricas
| Family | FLEX 8000 |
| Device | EPF8820A |
| Logic Elements (LEs) | 672 |
| Logic Array Blocks (LABs) | 84 |
| User I/Os | 112 |
| Dedicated Inputs | 4 |
| Propagation Delay (tPD) | 1.7 ns |
| Supply Voltage (VCCINT) | 4.5 V to 5.5 V (5 V nominal) |
| Configuration Technology | SRAM (volatile, requires external boot device) |
| Configuration Modes | Passive Serial, Passive Parallel, Active Serial |
| Temperature Grade | Industrial |
| Encapsulamento | 144-pin PQFP (S-PQFP-G144) |
| Terminal Pitch | 0.500 mm |
| Terminal Form | Gull Wing |
| Tipo de montagem | Surface Mount |
| JTAG (IEEE 1149.1) | Yes |
| Process Technology | CMOS |
Configuração de pinos do EPF8820ATI144-2
| Pino 1 | I/O — User I/O (general purpose, bank 1) |
| Pino 2 | I/O — User I/O (general purpose, bank 1) |
| Pino 3 | I/O — User I/O (general purpose, bank 1) |
| Pino 4 | VCCINT — Core supply (5V nominal) |
| Pino 5 | I/O — User I/O (general purpose, bank 1) |
| Pino 6 | GND — Ground |
| Pino 7 | I/O — User I/O (general purpose, bank 1) |
| Pino 8 | I/O — User I/O (general purpose, bank 1) |
| Pino 9 | I/O — User I/O (general purpose, bank 1) |
| Pino 10 | I/O — User I/O (general purpose, bank 1) |
| Pino 11 | I/O — User I/O (general purpose, bank 1) |
| Pino 12 | nSTATUS — Configuration status (open-drain, pulled-up) |
| Pino 13 | I/O — User I/O (general purpose, bank 2) |
| Pino 14 | I/O — User I/O (general purpose, bank 2) |
| Pino 15 | I/O — User I/O (general purpose, bank 2) |
| Pino 16 | I/O — User I/O (general purpose, bank 2) |
| Pino 17 | I/O — User I/O (general purpose, bank 2) |
| Pino 18 | I/O — User I/O (general purpose, bank 2) |
| Pino 19 | I/O — User I/O (general purpose, bank 2) |
| Pino 20 | I/O — User I/O (general purpose, bank 2) |
| Pino 21 | GND — Ground |
| Pino 22 | I/O — User I/O (general purpose, bank 2) |
| Pino 23 | I/O — User I/O (general purpose, bank 2) |
| Pino 24 | I/O — User I/O (general purpose, bank 2) |
| Pino 25 | I/O — User I/O (general purpose, bank 2) |
| Pino 26 | I/O — User I/O (general purpose, bank 2) |
| Pino 27 | VCCINT — Core supply (5V nominal) |
| Pino 28 | I/O — User I/O (general purpose, bank 2) |
| Pino 29 | I/O — User I/O (general purpose, bank 2) |
| Pino 30 | I/O — User I/O (general purpose, bank 2) |
| Pino 31 | I/O — User I/O (general purpose, bank 2) |
| Pino 32 | I/O — User I/O (general purpose, bank 2) |
| Pino 33 | GND — Ground |
| Pino 34 | I/O — User I/O (general purpose, bank 3) |
| Pino 35 | I/O — User I/O (general purpose, bank 3) |
| Pino 36 | I/O — User I/O (general purpose, bank 3) |
| Pino 37 | DCLK — Configuration clock input |
| Pino 38 | I/O — User I/O (general purpose, bank 3) |
| Pino 39 | I/O — User I/O (general purpose, bank 3) |
| Pino 40 | I/O — User I/O (general purpose, bank 3) |
| Pino 41 | I/O — User I/O (general purpose, bank 3) |
| Pino 42 | I/O — User I/O (general purpose, bank 3) |
| Pino 43 | VCCINT — Core supply (5V nominal) |
| Pino 44 | I/O — User I/O (general purpose, bank 3) |
| Pino 45 | I/O — User I/O (general purpose, bank 3) |
| Pino 46 | I/O — User I/O (general purpose, bank 3) |
| Pino 47 | I/O — User I/O (general purpose, bank 3) |
| Pino 48 | I/O — User I/O (general purpose, bank 3) |
| Pino 49 | I/O — User I/O (general purpose, bank 3) |
| Pino 50 | I/O — User I/O (general purpose, bank 3) |
| Pino 51 | I/O — User I/O (general purpose, bank 3) |
| Pino 52 | I/O — User I/O (general purpose, bank 3) |
| Pino 53 | GND — Ground |
| Pino 54 | I/O — User I/O (general purpose, bank 4) |
| Pino 55 | I/O — User I/O (general purpose, bank 4) |
| Pino 56 | DATA — Configuration data input |
| Pino 57 | I/O — User I/O (general purpose, bank 4) |
| Pino 58 | I/O — User I/O (general purpose, bank 4) |
| Pino 59 | I/O — User I/O (general purpose, bank 4) |
| Pino 60 | I/O — User I/O (general purpose, bank 4) |
| Pino 61 | I/O — User I/O (general purpose, bank 4) |
| Pino 62 | I/O — User I/O (general purpose, bank 4) |
| Pino 63 | VCCINT — Core supply (5V nominal) |
| Pino 64 | I/O — User I/O (general purpose, bank 4) |
| Pino 65 | I/O — User I/O (general purpose, bank 4) |
| Pino 66 | I/O — User I/O (general purpose, bank 4) |
| Pino 67 | I/O — User I/O (general purpose, bank 4) |
| Pino 68 | I/O — User I/O (general purpose, bank 4) |
| Pino 69 | I/O — User I/O (general purpose, bank 4) |
| Pino 70 | I/O — User I/O (general purpose, bank 4) |
| Pino 71 | I/O — User I/O (general purpose, bank 4) |
| Pino 72 | I/O — User I/O (general purpose, bank 4) |
| Pino 73 | GND — Ground |
| Pino 74 | nCONFIG — Configuration control input (active-low) |
| Pino 75 | I/O — User I/O (general purpose, bank 5) |
| Pino 76 | I/O — User I/O (general purpose, bank 5) |
| Pino 77 | I/O — User I/O (general purpose, bank 5) |
| Pino 78 | I/O — User I/O (general purpose, bank 5) |
| Pino 79 | I/O — User I/O (general purpose, bank 5) |
| Pino 80 | I/O — User I/O (general purpose, bank 5) |
| Pino 81 | I/O — User I/O (general purpose, bank 5) |
| Pino 82 | I/O — User I/O (general purpose, bank 5) |
| Pino 83 | VCCINT — Core supply (5V nominal) |
| Pino 84 | I/O — User I/O (general purpose, bank 5) |
| Pino 85 | I/O — User I/O (general purpose, bank 5) |
| Pino 86 | I/O — User I/O (general purpose, bank 5) |
| Pino 87 | I/O — User I/O (general purpose, bank 5) |
| Pino 88 | I/O — User I/O (general purpose, bank 5) |
| Pino 89 | I/O — User I/O (general purpose, bank 5) |
| Pino 90 | I/O — User I/O (general purpose, bank 5) |
| Pino 91 | I/O — User I/O (general purpose, bank 5) |
| Pino 92 | I/O — User I/O (general purpose, bank 5) |
| Pino 93 | GND — Ground |
| Pino 94 | I/O — User I/O (general purpose, bank 6) |
| Pino 95 | I/O — User I/O (general purpose, bank 6) |
| Pino 96 | I/O — User I/O (general purpose, bank 6) |
| Pino 97 | TDI — JTAG test data input |
| Pino 98 | I/O — User I/O (general purpose, bank 6) |
| Pino 99 | I/O — User I/O (general purpose, bank 6) |
| Pino 100 | I/O — User I/O (general purpose, bank 6) |
| Pino 101 | I/O — User I/O (general purpose, bank 6) |
| Pino 102 | I/O — User I/O (general purpose, bank 6) |
| Pino 103 | TMS — JTAG test mode select |
| Pino 104 | VCCINT — Core supply (5V nominal) |
| Pino 105 | I/O — User I/O (general purpose, bank 6) |
| Pino 106 | I/O — User I/O (general purpose, bank 6) |
| Pino 107 | I/O — User I/O (general purpose, bank 6) |
| Pino 108 | I/O — User I/O (general purpose, bank 6) |
| Pino 109 | TCK — JTAG test clock |
| Pino 110 | I/O — User I/O (general purpose, bank 6) |
| Pino 111 | I/O — User I/O (general purpose, bank 6) |
| Pino 112 | I/O — User I/O (general purpose, bank 6) |
| Pino 113 | I/O — User I/O (general purpose, bank 6) |
| Pino 114 | I/O — User I/O (general purpose, bank 6) |
| Pino 115 | GND — Ground |
| Pino 116 | I/O — User I/O (general purpose, bank 7) |
| Pino 117 | I/O — User I/O (general purpose, bank 7) |
| Pino 118 | I/O — User I/O (general purpose, bank 7) |
| Pino 119 | TDO — JTAG test data output |
| Pino 120 | I/O — User I/O (general purpose, bank 7) |
| Pino 121 | I/O — User I/O (general purpose, bank 7) |
| Pino 122 | I/O — User I/O (general purpose, bank 7) |
| Pino 123 | I/O — User I/O (general purpose, bank 7) |
| Pino 124 | I/O — User I/O (general purpose, bank 7) |
| Pino 125 | I/O — User I/O (general purpose, bank 7) |
| Pino 126 | I/O — User I/O (general purpose, bank 7) |
| Pino 127 | VCCINT — Core supply (5V nominal) |
| Pino 128 | I/O — User I/O (general purpose, bank 7) |
| Pino 129 | I/O — User I/O (general purpose, bank 7) |
| Pino 130 | I/O — User I/O (general purpose, bank 7) |
| Pino 131 | I/O — User I/O (general purpose, bank 7) |
| Pino 132 | I/O — User I/O (general purpose, bank 7) |
| Pino 133 | I/O — User I/O (general purpose, bank 7) |
| Pino 134 | nCE — Chip enable (active-low, used in multi-device configuration) |
| Pino 135 | I/O — User I/O (general purpose, bank 7) |
| Pino 136 | I/O — User I/O (general purpose, bank 7) |
| Pino 137 | GND — Ground |
| Pino 138 | I/O — User I/O (general purpose, bank 8) |
| Pino 139 | I/O — User I/O (general purpose, bank 8) |
| Pino 140 | I/O — User I/O (general purpose, bank 8) |
| Pino 141 | INPUT — Dedicated input (high-speed, clock/clear) |
| Pino 142 | INPUT — Dedicated input (high-speed, clock/clear) |
| Pino 143 | INPUT — Dedicated input (high-speed, clock/clear) |
| Pino 144 | INPUT — Dedicated input (high-speed, clock/clear) |
Aplicações típicas
EPF8820ATI144-2 é adequado para 6 aplicaçãos: Industrial Glue Logic Replacement, Legacy 5V Telecom Backplane Bridging, Custom Peripheral Expansion for Embedded CPUs, Fast State-Machine Replacement, Test and Measurement Instrument Logic, Aerospace and Defense Legacy Avionics.
Industrial Glue Logic Replacement
The EPF8820ATI144-2's 672 logic elements and 1.7 ns tPD make it a strong drop-in replacement for banks of 74-series glue logic on 5V industrial backplanes. Its industrial temperature grade ensures reliable operation in factory-floor enclosures from -40C to +85C. Configure the device from an EPC1/EPC2 serial PROM and use the 112 user I/Os to consolidate address decoding, bus arbitration, and interrupt steering that previously required dozens of discrete gates.
Recomendado
Legacy 5V Telecom Backplane Bridging
5V telecommunications backplanes that pre-date the 3.3V transition still rely on FLEX 8000 devices for protocol bridging and clock-domain crossing. The EPF8820ATI144-2 operates from a single 5V rail and supports JTAG (IEEE 1149.1) boundary-scan for in-system test, which is critical for telecom card maintenance. Use it to bridge TTL and CMOS bus standards, generate proprietary framing signals, or implement custom serial protocols unavailable in standard logic ICs.
Recomendado
Custom Peripheral Expansion for Embedded CPUs
The EPF8820ATI144-2 can extend an embedded 8051, x86, or Motorola 68k processor with custom peripherals - timers, PWM, custom bus masters, or proprietary interfaces - without requiring a new ASIC. The 1.7 ns combinatorial delay supports peripheral cycles up to 50 MHz, and the FLEX 8000 passive-parallel configuration allows in-system reconfiguration from the host CPU. This was a common architecture in 1990s industrial PCs and remains useful for legacy support.
Recomendado
Fast State-Machine Replacement
Complex Mealy and Moore state machines with 20+ states become impractical in discrete 74LS/74HC logic but fit easily into 672 LEs. The EPF8820ATI144-2's 1.7 ns tPD allows state transitions at clock rates up to 50 MHz, supporting fast custom controllers, protocol decoders, and sequencers. Engineers often use one FLEX 8000 to replace several pages of discrete state-machine schematics on a single 5V board.
Recomendado
Test and Measurement Instrument Logic
Bench-top test equipment in the late 1990s and early 2000s used FLEX 8000 devices for timing generators, custom counters, and proprietary bus interfaces. The EPF8820ATI144-2's industrial temperature grade and 5V supply tolerance suit lab and production-floor instruments that must coexist with TTL-level probes. JTAG support simplifies factory test, and the FastTrack interconnect gives predictable timing paths for metrology applications.
Recomendado
Aerospace and Defense Legacy Avionics
Many long-lifecycle aerospace and defense platforms built in the 1990s still contain FLEX 8000 FPGAs on 5V avionics buses, and obsolescence management requires qualified drop-in replacements. The EPF8820ATI144-2 industrial temperature grade and 1.7 ns tPD fit these applications, although new defense designs should consider radiation-tolerant FPGAs. Sustainment programs source the part through controlled aftermarket distributors with full traceability.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para EPF8820ATI144-2 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | EPF8820ATC144-2 | EPF8820ATI144-1 | EPF8820ATC144-3 | EPF8820ATC144-4 |
|---|---|---|---|---|---|
| Package | 144-pin PQFP (S-PQFP-G144) | 144-pin PQFP - same | 144-pin PQFP - same | 144-pin PQFP - same | 144-pin PQFP - same |
| Brand | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) |
| Family | FLEX 8000 | FLEX 8000 - same | FLEX 8000 - same | FLEX 8000 - same | FLEX 8000 - same |
| Logic Elements | 672 | 672 | 672 | 672 | 672 |
| User I/Os | 112 | 112 | 112 | 112 | 112 |
| Propagation Delay (tPD) | 1.7 ns | 1.7 ns | ~2.5 ns (slower) | ~1.4 ns (faster) | ~1.0 ns (fastest) |
| Supply Voltage | 4.5 V to 5.5 V (5 V nominal) | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
| Temperature Grade | Industrial (-40C to +85C) | Commercial (0C to 70C) | Industrial | Commercial | Commercial |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Principais diferenciais
- 5V VCCINT for legacy industrial systems (vs MAX II CPLD family)
- True FPGA fabric with 672 LEs and continuous routing (vs EPF8452A (256 LEs))
- Industrial temperature grade with 1.7 ns tPD (vs EPF8820ATC144-2 (commercial temperature))
Notas de projeto
Place a 0.1 uF ceramic decoupling capacitor at every VCCINT and VCCIO pin, plus a single 10-100 uF bulk tantalum or aluminum capacitor near the package. The EPF8820ATI144-2 draws significant transient current during configuration; bulk capacitance prevents VCC droop that could otherwise trigger an unintended reconfiguration. VCC must ramp monotonically from 0V to 5V in less than 100 ms per the FLEX 8000 handbook; an incomplete power-up sequence can leave the device in an undefined configuration state with output buffers enabled, causing bus contention with downstream logic.
Use a 4-layer PCB with dedicated power and ground planes; do not route long traces on VCC or GND. The 144-pin PQFP at 0.500 mm pitch is workable with standard 8-mil traces and 8-mil spaces; vias in the thermal pad under the PQFP body are not required because the package has no exposed die-attach pad. JTAG signals (TCK, TMS, TDI, TDO) should be routed with 4-mil control of impedance and kept short to avoid reflections at the configuration clock frequency.
Three pitfalls are common when bringing up an EPF8820ATI144-2 design: (1) forgetting that the SRAM configuration is volatile and not providing a configuration PROM (EPC1/EPC2) - the device will not boot from flash; (2) leaving nCONFIG floating instead of tying it high through a 10 kohm pull-up, which causes the device to enter configuration mode spuriously; (3) driving the I/O pins before configuration completes, causing bus contention - the outputs are high-impedance during configuration but can drive weakly if the MSEL pins are set incorrectly. Always check the nSTATUS pin for a high state before enabling downstream logic.
Place the EPC1 or EPC2 configuration PROM within 50 mm of the FLEX 8000 device and route DCLK with a controlled-impedance trace to avoid configuration errors. The dedicated INPUT pins (141-144) are optimized for high-speed clock or clear signals - use them for global clock or global clear routing rather than dedicating an I/O pin, which saves the LAB-level clock network for other functions. Decoupling capacitors must be placed within 5 mm of the corresponding VCC pin per Altera's design guidelines.
Informações de conformidade
The Altera FLEX 8000 family pre-dates the RoHS directive. Distributor stock is generally non-RoHS (SnPb finish), although some aftermarket sources carry RoHS-compliant reballed parts. RoHS/REACH compliance must be verified at the lot level for any new procurement.
