EPF81188ARC240-5 - FLEX 8000 FPGA, 1008 LEs, PQFP-240 | Altera
MPN： EPF81188ARC240-5 ✗ 停產EPF81188ARC240-5 概覽
What is a FLEX 8000 FPGA? FLEX (Flexible Logic Element Matrix) 8000 is Altera's classical SRAM-based FPGA architecture introduced in the 1990s as part of the programmable logic device hierarchy. FPGAs (Field-Programmable Gate Arrays) belong to the broader category of programmable logic devices (PLDs), which sit between fixed-function ASICs and discrete logic in terms of flexibility and integration. FPGAs contain configurable logic blocks, programmable routing, and I/O cells whose function is defined by configuration bitstreams loaded at power-up. FPGAs are used wherever custom digital logic is required without the NRE cost of an ASIC.
Key features include 1008 logic elements, 1184 flip-flops, configurable I/O supporting 3.3 V or 5 V operation, and CMOS SRAM-based configuration. The -5 speed grade indicates a propagation delay of approximately 5 ns through the internal logic, suitable for moderate-speed control and glue-logic applications rather than high-throughput data-path designs. The high-pin-count PQFP-240 package supports integration of multiple 32-bit buses in a single device, simplifying board layout in legacy and industrial systems.
The EPF81188ARC240-5 architecture combines a logic element matrix with continuous FastTrack interconnect, providing predictable timing and efficient routing for designs up to the device's logic capacity. Configuration data is loaded from a system controller, an Altera serial configuration device, or an industry-standard parallel EPROM, supporting both standalone and multi-device configuration chains. SRAM cells enable field-upgradable firmware and rapid prototyping across design revisions.
Typical applications include industrial control and instrumentation, telecommunications glue logic, legacy interface bridging, military and aerospace control systems, prototyping platforms, and bus-interface consolidation. The 3.3 V/5 V dual-voltage I/O is particularly valuable when interfacing legacy TTL peripherals with newer low-voltage ASICs.
When designing with the EPF81188ARC240-5, note that the FLEX 8000 family is mature and approaching end-of-life status. Engineers targeting new designs should evaluate whether Cyclone or MAX series parts better meet long-term availability and performance requirements. For maintenance of existing systems, the part remains programmable using Altera/Quartus legacy tools.
This page synthesizes distributor pricing, drop-in alternatives, lifecycle data, and design guidance not consolidated in the original Altera datasheet, providing a single reference for engineers managing long-lifecycle industrial and military systems.
直接替換替代品，適用於 EPF81188ARC240-5 — 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： EPF81188ARC240-5 （相同外形與佔位） — 差異在於 Package, Speed Grade, Process Technology, Operating Temperature, Configuration Method.
EPF81188ARC240-4
✅ 直接替換聯絡詢價
查看資料表 →EPF81188ARC240-4AA
✅ 直接替換聯絡詢價
查看資料表 →EPF81188ARC240-3
✅ 直接替換聯絡詢價
查看資料表 →EPF81188ARC240-2
✅ 直接替換聯絡詢價
查看資料表 →EPF81188AQC240-4
✅ 直接替換聯絡詢價
查看資料表 →EPF81188AQC240-3
✅ 直接替換聯絡詢價
查看資料表 →EPF81188AQC240-2
✅ 直接替換聯絡詢價
查看資料表 →EPF81188ARC240-5 最大額定值與電氣特性
| Manufacturer | Altera (Intel) |
| Series | FLEX 8000 |
| Logic Elements | 1008 |
| Flip-Flops | 1184 |
| 封裝 | PQFP-240 (Plastic Quad Flatpack), 0.500 mm pitch |
| Configuration Technology | CMOS SRAM |
| Process Technology | CMOS |
| I/O Voltage | 3.3 V or 5 V configurable |
| Speed Grade | -5 (5 ns propagation delay) |
| 工作溫度 | 0C to +70C (Commercial) |
| 供應電壓 | 4.75 V to 5.25 V (per 3achips datasheet snippet) |
| Package Height | 4.2 mm (per 3achips datasheet snippet) |
| RoHS 狀態 | Non-RoHS Compliant (per 3achips datasheet snippet) |
| 安裝類型 | Surface Mount |
| Device Type | Loadable PLD / FPGA |
EPF81188ARC240-5 腳位配置
| 腳位 1 | I/O — User I/O pin (configurable) |
| 腳位 60 | I/O — User I/O pin (configurable) |
| 腳位 120 | I/O — User I/O pin (configurable) |
| 腳位 180 | I/O — User I/O pin (configurable) |
| 腳位 240 | I/O — User I/O pin (configurable) |
典型應用
EPF81188ARC240-5 適用於 6 應用s: Industrial Control and Glue Logic, Legacy Telecom Interface Bridging, Military and Aerospace Control Systems, Prototyping and Education Platforms, Bus Interface Consolidation, Test and Measurement Equipment.
Industrial Control and Glue Logic
The EPF81188ARC240-5 is well suited for industrial control applications requiring integration of multiple bus controllers, encoder interfaces, and peripheral glue logic. Its 1008 logic elements accommodate state machines for motor control, sensor aggregation, and discrete I/O handling without an external ASIC. The 3.3 V/5 V configurable I/O allows direct interfacing with legacy TTL peripherals and modern low-voltage controllers from a single device, simplifying PCB routing. The PQFP-240 package provides enough I/O pins to consolidate 32-bit data, address, and control buses that would otherwise require multiple discrete logic ICs, reducing BOM cost and board area in factory automation and process-control designs.
推薦
Legacy Telecom Interface Bridging
Telecommunications infrastructure often retains legacy equipment based on FLEX 8000 FPGAs. The EPF81188ARC240-5's PQFP-240 footprint and 5 V tolerant I/O make it a drop-in replacement for failed devices on legacy line cards, multiplexer boards, and base-station interface modules. Its SRAM-based configuration supports field firmware upgrades over the equipment's service life. The 1008 logic elements are sufficient for protocol bridges between E1/T1 framing, HDLC controllers, and backplane serial interfaces without external glue logic. Maintenance teams typically source these NRND parts through authorized brokers to keep installed systems operational beyond the original manufacturer's support window.
推薦
Military and Aerospace Control Systems
The EPF81188ARC240-5 has historically been qualified into military and aerospace control systems where long lifecycles and proven reliability outweigh the need for cutting-edge performance. Its CMOS SRAM architecture supports field reprogramming for mission updates, while the PQFP-240 package and commercial 0C to +70C temperature range suit benign-environment avionics and ground-vehicle electronics. The part is often paired with radiation-tolerant PROMs or EEPROMs for non-volatile configuration storage in deployed systems. Sustainment programs rely on the FLEX 8000 family for continued production of legacy platforms, with the -5 speed grade preferred for stable timing margins in deterministic control loops.
推薦
Prototyping and Education Platforms
The EPF81188ARC240-5 serves as a teaching platform in university digital design labs and as a prototyping device for engineers validating FLEX 8000 architecture concepts before committing to production. The MAX+PLUS II toolchain is freely available from Altera legacy archives, and the device's 1008 logic elements provide enough capacity for meaningful designs including CPUs, signal processors, and peripheral controllers. Educational kits using FLEX 8000 parts expose students to fundamental FPGA concepts like look-up tables, carry chains, and configurable interconnect. Hobbyists and restoration engineers also use these parts to maintain vintage computing hardware and development boards originally built around the FLEX 8000 family.
推薦
Bus Interface Consolidation
The high-pin-count PQFP-240 package of the EPF81188ARC240-5 is specifically designed for bus interface consolidation, where multiple parallel buses, address latches, and peripheral glue logic can be merged into a single programmable device. The 1008 logic elements handle 32-bit address decoding, wait-state generation, and bus arbitration logic for VME, ISA, and proprietary backplane interfaces. Industrial and embedded-system designers use this approach to replace dozens of 74-series TTL chips with one FPGA, reducing PCB area and improving reliability. The 3.3 V/5 V configurable I/O simplifies interfacing with mixed-voltage subsystems without external level shifters.
推薦
Test and Measurement Equipment
Test and measurement equipment from the late 1990s and early 2000s frequently used the EPF81188ARC240-5 for custom timing generators, pattern generators, and instrument front-end signal conditioning. The device's 5 ns propagation delay is well matched to instrumentation sample rates in the 50-100 MHz range. The configurable I/O simplifies interfacing with both ECL timing circuits and TTL trigger logic from a single device. Replacement of failed FLEX 8000 devices in oscilloscopes, logic analyzers, and protocol testers keeps vintage capital equipment operational. Engineers performing board-level repair rely on the same FLEX 8000 family variants with identical pinouts to ensure mechanical and electrical compatibility.
推薦
推薦產品摘要
工程參考資料，適用於 EPF81188ARC240-5 — 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 | EPF81188ARC240-4 | EPF81188ARC240-3 | EPF81188ARC240-2 | EPF81188AQC240-4 |
|---|---|---|---|---|---|
| Package | PQFP-240 | PQFP-240 - same | PQFP-240 - same | PQFP-240 - same | PQFP-240 - same |
| Brand | Altera | Altera | Altera | Altera | Altera |
| Logic Elements | 1008 | 1008 | 1008 | 1008 | 1008 |
| Speed Grade | -5 (5 ns) | -4 (4 ns) | -3 (3 ns) | -2 (2 ns) | -4 (4 ns) |
| Propagation Delay | 5 ns | 4 ns | 3 ns | 2 ns | 4 ns |
| Family | FLEX 8000 | FLEX 8000 | FLEX 8000 | FLEX 8000 | FLEX 8000 |
| Configuration Technology | CMOS SRAM | CMOS SRAM | CMOS SRAM | CMOS SRAM | CMOS SRAM |
| I/O Voltage | 3.3 V or 5 V | 3.3 V or 5 V | 3.3 V or 5 V | 3.3 V or 5 V | 3.3 V or 5 V |
主要差異化特點
- Direct same-family speed-grade flexibility (對比EPF81188ARC240-4)
- High pin-count integration density (對比EPF81188AGC232-4)
- Legacy system sustainment position (對比Cyclone IV EP4CE6E22)
設計說明
The EPF81188ARC240-5 is classified NRND (Not Recommended for New Designs) per Intel/Altera's product lifecycle policy. For new designs, migrate to Cyclone IV/V or MAX II/IV/V families which offer lower power, modern toolchain support (Quartus Prime), and guaranteed long-term availability. Use this part only for sustaining existing validated systems.
The FLEX 8000 family uses the legacy MAX+PLUS II toolchain, which is unsupported on modern 64-bit Windows and most Linux distributions. Engineers maintaining FLEX 8000 designs must retain legacy 32-bit Windows XP/Windows 7 environments or use DOSBox emulation. Plan tool support when scheduling long-term system maintenance.
The EPF81188ARC240-5 operates from a 4.75 V to 5.25 V supply per the FLEX 8000 datasheet. Estimated: at 100% toggle rate on all 1008 LEs and 5 V supply, dynamic current can reach several hundred mA. Use a low-ESR decoupling network with at least 10 uF bulk and 0.1 uF high-frequency caps near each VCC pin group.
合規資訊
RoHS status marked non-compliant per 3achips datasheet snippet. Other compliance attributes were not stated in the verified web data.
