EPF8820ATC144-4 - FLEX 8000 FPGA, 672 Cells, 144-TQFP | Intel
MPN： EPF8820ATC144-4 ✗ 停產EPF8820ATC144-4 概覽
A Field Programmable Gate Array (FPGA) is a programmable logic device (PLD) subclass that uses an array of configurable logic blocks (CLBs / LABs), programmable interconnect, and configurable I/O cells to implement arbitrary digital logic. Within the broader taxonomy, the FLEX 8000 belongs to: FPGA → programmable logic device (PLD) → digital integrated circuit → semiconductor. FPGAs are reconfigurable in-system and are used wherever custom ASIC-like logic density and parallelism are required without the NRE cost of a mask-programmed device.
Key features of the EPF8820ATC144-4 include 8K equivalent gates, 672 logic cells, 84 LABs, 112 user I/O, embedded SRAM configuration memory, MultiVolt I/O support, and on-chip JTAG-based boundary-scan test (IEEE 1149.1) for production programming. Configuration is loaded at power-up via serial or parallel PROM using Intel configuration devices such as EPC1, EPC1064, EPC1213, and EPC1441.
The FLEX 8000 architecture separates logic, interconnect, and I/O into distinct structures with continuous FastTrack interconnect rows and columns, providing predictable timing across the device. The LUT-based logic element supports wide-input combinational and registered functions, while the SRAM-based configuration enables unlimited in-system re-programmability. A global clear and clock network distributes reset and clock signals across all LABs.
Typical applications include industrial control glue logic, telecommunications interface bridging, test and measurement instrumentation, and legacy system prototyping. It also appears in legacy 5 V industrial bus systems where modern low-voltage FPGAs are incompatible, and in educational hardware platforms requiring a low-density, 5 V tolerant programmable device.
When designing with the EPF8820ATC144-4, plan for external configuration memory (an EPC1, EPC1064, or EPC1441 serial PROM) and respect the 5 V VCCINT supply requirement. Note that this part is from a discontinued legacy family; production availability is limited to remaining distributor stock, and new designs should evaluate Intel's modern MAX II, MAX V, or Cyclone families as alternatives.
直接替換替代品，適用於 EPF8820ATC144-4 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： EPF8820ATC144-4 （相同外形與佔位） — 差異在於 Package, Configuration Method, Operating Temperature, Process Technology, Usable Gates.
EPF8820ATC144-3N
✅ 直接替換聯絡詢價
查看資料表 →EPF8820ATC144-2N
✅ 直接替換聯絡詢價
查看資料表 →EPF8820ATC144-1
✅ 直接替換聯絡詢價
查看資料表 →EPF8636ATC144-4
✅ 直接替換📋 參考替代品（不在目錄中）
EPF8452ATC100-4N
✅ 直接替換聯絡詢價
查看資料表 →EPF8820ATC144-4 最大額定值與電氣特性
| Family | FLEX 8000 |
| Logic Elements / Cells | 672 |
| Logic Array Blocks (LABs) | 84 |
| Equivalent Gates | 8000 |
| Number of I/Os | 112 |
| Number of Gates | 8000 |
| Operating Frequency | 125 MHz |
| Process Technology | 0.42 µm CMOS SRAM |
| Core Supply Voltage (VCCINT) | 5 V |
| I/O Voltage (VCCIO) | 3.3 V or 5.0 V (MultiVolt) |
| 封裝 | 144-pin TQFP (LFQFP, gull-wing) |
| Speed Grade | -4 |
| Configuration Method | SRAM, serial/parallel PROM (EPC1/EPC1064/EPC1213/EPC1441) |
| 工作溫度 | Commercial (0°C to +70°C) |
| 安裝類型 | Surface Mount |
EPF8820ATC144-4 144-pin tqfp (lfqfp, gull-wing) 腳位配置指南
EPF8820ATC144-4（144-pin tqfp (lfqfp, gull-wing) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： EPF8820ATC144-4.
請參閱 資料表 以查看完整腳位配置。
典型應用
EPF8820ATC144-4 適用於 6 應用s: Legacy Industrial Control Glue Logic, Telecommunications Interface Bridging, Test and Measurement Instrumentation, Educational and Prototyping Platforms, Legacy Avionics and Defense Subsystems, Automotive Body Electronics (Legacy Systems).
Legacy Industrial Control Glue Logic
The EPF8820ATC144-4 fits legacy industrial control glue logic because its 672 logic elements provide sufficient capacity for state-machine and bus-bridging functions commonly required in PLC backplanes and motor-control I/O modules. Its 5 V VCCINT and 5 V tolerant I/O allow direct connection to legacy 5 V sensor and actuator buses (e.g., TTL, HCT logic) without level translation, and the 144-pin TQFP footprint integrates cleanly with surface-mount control boards. MultiVolt I/O also enables 3.3 V communication with newer microcontrollers. Engineers should consider the obsolete lifecycle status and source from distributor stock only.
推薦
Telecommunications Interface Bridging
The EPF8820ATC144-4 is suited for telecommunications interface bridging because its 84 LABs deliver enough logic density to implement multi-protocol bridges (e.g., UART-to-HDLC, TDM-to-parallel) in legacy telecom shelves. The 112 user I/O pins allow direct attachment of parallel bus interfaces, and the 5 V core supply matches older telecom backplanes. Configuration via EPC1 or EPC1441 serial PROM enables field-upgradable firmware in central-office equipment, and the IEEE 1149.1 JTAG interface simplifies board-level boundary-scan testing during manufacturing.
推薦
Test and Measurement Instrumentation
The EPF8820ATC144-4 fits test and measurement instrumentation because its SRAM-based re-programmability allows on-the-fly logic updates during instrument calibration and test-pattern generation. The 672 logic elements support parallel pattern generators and counter/timer functions commonly used in benchtop instruments, while the 112 user I/O pins accommodate multi-channel data acquisition. The 5 V VCCINT simplifies power tree design in legacy instruments, and the JTAG boundary-scan port enables in-system programming and fault diagnosis during production test.
推薦
Educational and Prototyping Platforms
The EPF8820ATC144-4 is well-suited for educational and prototyping platforms because its FLEX 8000 architecture is well-documented in academic textbooks and Altera legacy training materials, making it ideal for FPGA fundamentals coursework. The 672 logic elements provide enough capacity to implement representative designs such as UARTs, FIFOs, and small CPUs, and the 5 V supply allows direct connection to breadboard-friendly 5 V peripherals. The MAX+PLUS II and Quartus legacy design tools support the FLEX 8000 family, enabling student projects without licensing cost for non-commercial use.
推薦
Legacy Avionics and Defense Subsystems
The EPF8820ATC144-4 fits legacy avionics and defense subsystems because the FLEX 8000 family is on long-term military and aerospace approved-vendor lists (AVL) where redesign qualification is prohibitively expensive. Its 5 V tolerance, 144-pin TQFP packaging, and proven in-service reliability over decades make it suitable for sustainment programs where form-fit-function replacement is mandatory. Re-programmability via SRAM supports mission-specific configuration loads, while the ruggedized TQFP-144 package withstands standard MIL-STD-810 vibration and thermal cycling profiles when properly mounted.
推薦
Automotive Body Electronics (Legacy Systems)
The EPF8820ATC144-4 fits legacy automotive body electronics because its 5 V I/O capability interfaces directly with 12 V automotive buses through conventional level shifters, and its 672 logic elements support typical body-control functions (lighting controllers, wiper logic, seat controllers). The 144-pin TQFP package is automotive-assembly compatible with standard SMT lines. Engineers should note that this part is not AEC-Q100 qualified; new designs targeting automotive applications should consider modern MAX V or Cyclone devices with proper AEC-Q100 compliance.
推薦
推薦產品摘要
工程參考資料，適用於 EPF8820ATC144-4 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | EPF8820ATC144-3N | EPF8820ATC144-2N | EPF8820ATC144-1 | EPF8636ATC144-4 | EPF8452ATC100-4N |
|---|---|---|---|---|---|---|
| Brand | Intel (formerly Altera) | Intel | Intel | Intel | Intel | Intel |
| Package | 144-pin TQFP | 144-pin TQFP - same | 144-pin TQFP - same | 144-pin TQFP - same | 144-pin TQFP - same | 100-pin TQFP (different) |
| Logic Elements | 672 | 672 | 672 | 672 | 576 | 452 |
| LABs | 84 | 84 | 84 | 84 | 72 | 56 |
| User I/O | 112 | 112 | 112 | 112 | 112 | 68 |
| Speed Grade | -4 | -3 | -2 | -1 | -4 | -4 |
| Core Voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| Process Technology | 0.42 µm CMOS SRAM | 0.42 µm CMOS SRAM | 0.42 µm CMOS SRAM | 0.42 µm CMOS SRAM | 0.42 µm CMOS SRAM | 0.42 µm CMOS SRAM |
主要差異化特點
- Fastest speed grade (-4) in the EPF8820ATC144 family (對比EPF8820ATC144-3N)
- Highest logic density within the FLEX 8000 family (對比EPF8636ATC144-4)
- 5 V core supply compatibility with legacy 5 V systems (對比EPF8452ATC100-4N)
設計說明
The EPF8820ATC144-4 requires a stable 5 V VCCINT supply with adequate decoupling: place a 100 µF bulk capacitor near the device plus 0.1 µF ceramic capacitors on every VCC pin pair. VCCIO can be independently set to 3.3 V or 5.0 V to support MultiVolt I/O interfacing; both rails must be present at power-up before configuration begins. The SRAM configuration cells are volatile, so all configuration data must be reloaded after each power cycle.
Do not attempt to use the EPF8820ATC144-4 with the latest Quartus Prime Pro Edition; the FLEX 8000 family is only supported by MAX+PLUS II (legacy) and Quartus II versions up to 13.0. Modern design flows cannot target this part. Additionally, be aware that the JTAG instruction register length and BSDL file must match the specific 84 LAB / 672 LE density, not generic FLEX 8000 templates.
The 144-pin TQFP package has 0.5 mm lead pitch requiring careful PCB layout: keep signal traces within the pad, use solder mask defined (SMD) pads for improved joint reliability, and ensure a uniform thermal copper pour beneath the package to dissipate the 5 V core power dissipation. Lead-free reflow profiles are available, but verify specific solder composition since some FLEX 8000 lots used SnPb finish. The package body is 20 mm × 20 mm with a 1.6 mm maximum height.
Estimated: At 125 MHz worst-case toggle activity across all 672 logic elements, internal power dissipation may reach 1.5 W-2.0 W; ensure the PCB thermal design provides adequate heat spreading. The 144-pin TQFP has no exposed thermal pad, so all cooling must be via the gull-wing leads and PCB copper. Input values used: 5 V VCCINT × estimated ICC (~400 mA worst-case) = ~2.0 W. Verify with actual ICC measurement in your specific design.
合規資訊
FLEX 8000 family predates broad RoHS adoption; specific lot compliance varies. Not AEC-Q100 qualified. Lifecycle status obsolete per FLEX 8000 family EOL announcements.
