EP3C25E144C7 - 24,624 Logic Elements FPGA | Altera
部品番号: EP3C25E144C7 ✗ 生産終了EP3C25E144C7 概要
A field-programmable gate array is a semiconductor whose digital logic, memory, and I/O behavior are configured after manufacture. In the product hierarchy, an FPGA is a programmable-logic semiconductor and a more flexible alternative to application-specific integrated circuits. The Cyclone III family combines configurable logic blocks, embedded RAM, general-purpose I/O, and programmable interconnect resources within one device.
Key features include 24,624 logic elements, 1,539 logic array blocks, and 608,256 bits of embedded RAM. The device provides 82 user I/O and is available in a 144-pin exposed-pad package. Its listed 437.5 MHz maximum frequency gives designers a useful benchmark for clocked digital logic, although achievable system frequency depends on the selected logic path, I/O standard, timing constraints, and implementation.
The Cyclone III architecture organizes programmable resources into logic array blocks connected by general-purpose interconnect. Embedded memory allows designers to implement buffers, lookup tables, packet stores, and small data tables without using external memories. Its 82 I/O pins support integration with external processors, transceivers, converters, memory devices, and industrial interface components, subject to the voltage and timing constraints specified by the manufacturer datasheet.
Typical uses include industrial control, communications infrastructure, instrumentation, embedded signal processing, and general-purpose logic consolidation. The device can host parallel interfaces, control logic, protocol bridges, or embedded state machines where a programmable architecture simplifies updates compared with fixed logic. Its 144-pin exposed-pad package also supports board-level thermal management through the pad and associated PCB copper.
The primary design consideration is thermal management. The exposed pad must be connected to the required power and ground planes and thermally coupled to copper according to the package and board guidelines. Designers must also verify I/O voltage compatibility, pin constraints, power sequencing, memory initialization, and timing closure in the Quartus design environment.
This product record combines verified distributor specifications, source links, practical application guidance, and explicitly qualified drop-in alternatives. Alternative electrical data is left as where the supplied source material does not provide a verified value, allowing engineers to distinguish confirmed facts from items that still require datasheet validation.
ドロップイン代替品: EP3C25E144C7 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: EP3C25E144C7 （同一形状・フットプリント） — 相違点: Package, Process Technology, Core Supply Voltage, Maximum Frequency, RoHS Status.
EP3C25E144I7N
✅ ドロップイン価格はお問い合わせください
データシートを見る →EP3C25E144C8
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →EP3C25E144C7N
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
EP3C25E144I8
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
EP3C25E144I8N
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
EP3C25E144C7 最大定格＆電気的特性
| Device Type | Field Programmable Gate Array (FPGA) |
| FPGA Family | Cyclone III |
| Logic Elements | 24,624 |
| Logic Array Blocks | 1,539 |
| Embedded RAM | 608,256 bits |
| General-Purpose I/O | 82 |
| Maximum Frequency | 437.5 MHz |
| Process Technology | 65 nm |
| Core Supply Voltage | 1.15 V to 1.25 V |
| Nominal Core Voltage | 1.2 V |
| Junction Temperature Range | 0°C to 85°C |
| パッケージ | 144-pin EQFP/LQFP with exposed pad |
| Number of Terminals | 144 |
| Package Form | Rectangular |
| Terminal Form | Gull wing |
| 実装タイプ | Surface mount |
| Programmability | User-programmable after manufacture |
EP3C25E144C7 rectangular ピン配置ガイド
EP3C25E144C7 (rectangular パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: EP3C25E144C7.
詳細は データシート をご参照ください。
主な用途
EP3C25E144C7 の用途: 6 件s: Industrial PLC and Automation Control, Communications Interface Bridging, Data Acquisition and Signal Conditioning, Embedded Instrumentation Control, Network Equipment Control Plane, Programmable Logic Consolidation.
Industrial PLC and Automation Control
The EP3C25E144C7 fits industrial programmable-logic controller and automation modules because it combines 24,624 logic elements, 1,539 logic array blocks, and 82 general-purpose I/O. Those resources can support parallel sequencing logic, machine-state machines, interlocks, counters, and communication-control functions. The 1.15 V to 1.25 V core range requires a compliant supply design, while the 608,256 bits of embedded RAM can implement small buffers or lookup tables. Its 144-pin exposed-pad package also requires a deliberate PCB thermal strategy.
おすすめ
Communications Interface Bridging
The EP3C25E144C7 is suitable for protocol conversion and communications preprocessing because its programmable logic can merge serial framing, packet filtering, buffering, and control functions into one device. The 608,256 bits of embedded RAM provides local storage for small packet queues or state tables, while the listed 437.5 MHz device frequency gives adequate margin for many parallel-logic implementations. The 82 user I/O allow direct connection to transceivers and level shifters. Actual line-rate performance still depends on I/O standards, timing constraints, and selected external components.
おすすめ
Data Acquisition and Signal Conditioning
The EP3C25E144C7 can implement digital signal conditioning around data-conversion systems, including sampling control, calibration tables, trigger logic, and data packing. Its 24,624 logic elements are useful for parallel datapaths and finite-state control, while the 608,256 bits of embedded RAM can hold calibration or lookup data. The device operates from a 1.15 V to 1.25 V core supply, leaving separate external handling for converter and interface voltages. Designers must establish complete timing constraints for acquisition clocks and validate analog isolation separately.
おすすめ
Embedded Instrumentation Control
The EP3C25E144C7 suits instrument-control logic that coordinates front-panel functions, calibration storage, status reporting, and measurement sequencing. Programmable I/O and logic blocks can implement custom test sequences and interface adaptation without a separate fixed-logic ASIC, while embedded RAM can support local measurement tables or command history. The 82 I/O offer connections to display, keypad, and communication circuitry, but voltage compatibility must be checked for every external device. The exposed pad should be tied and thermally coupled according to the manufacturer footprint.
おすすめ
Network Equipment Control Plane
The EP3C25E144C7 can implement control-plane, status, and management functions in network equipment where programmable logic accelerates packet classification or supervisory processing. Its 24,624 logic elements and 608,256 bits of RAM provide a compact resource base for finite-state machines, queues, and protocol parsing, while 82 I/O support PHY, transceiver, and management interfaces. The 437.5 MHz listed frequency is a device benchmark, not a guaranteed throughput figure. Line-rate closure depends on memory interfaces, routing congestion, and timing constraints.
おすすめ
Programmable Logic Consolidation
The EP3C25E144C7 is useful when consolidating glue logic, parallel datapaths, and small state machines into a single configurable device. Its 1,539 logic array blocks and 24,624 logic elements provide a substantially larger implementation surface than basic CPLDs, while 608,256 bits of RAM reduce the need for external buffers. The 144-pin package offers 82 general-purpose I/O, but not every package pin is necessarily available for general routing because configuration and power pins have fixed assignments. A complete Quartus fit, timing, and pin-placement review is required before committing to the design.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: EP3C25E144C7 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | EP3C25E144I7N | EP3C25E144C8 | EP3C25E144C7N | EP3C25E144I8 | EP3C25E144I8N |
|---|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera | Altera |
| Package | 144-pin EQFP/LQFP with exposed pad | 144-pin EQFP/LQFP with exposed pad - same | 144-pin EQFP/LQFP with exposed pad - same | 144-pin EQFP/LQFP with exposed pad - same | 144-pin EQFP/LQFP with exposed pad - same | 144-pin EQFP/LQFP with exposed pad - same |
| Device Family | Cyclone III | Cyclone III | Cyclone III | Cyclone III | Cyclone III | Cyclone III |
| Logic Elements | 24,624 | 24,624 | 24,624 | 24,624 | 24,624 | 24,624 |
| Logic Array Blocks | 1,539 | 1,539 | 1,539 | 1,539 | 1,539 | 1,539 |
| Embedded RAM | 608,256 bits | 608,256 bits | 608,256 bits | 608,256 bits | 608,256 bits | 608,256 bits |
| General-Purpose I/O | 82 | 82 | 82 | 82 | 82 | 82 |
| Ordering-Grade Distinction | C7 commercial-temperature, speed-grade 7 ordering code | I7 industrial-temperature, speed-grade 7, lead-free N suffix | C8 commercial-temperature, speed-grade 8 ordering code | C7 commercial-temperature, speed-grade 7, lead-free N suffix | I8 industrial-temperature, speed-grade 8 ordering code | I8 industrial-temperature, speed-grade 8, lead-free N suffix |
主な差別化要因
- Directly documented Intel/Altera listing （vs EP3C25E144I7N)
- Commercial-temperature ordering option （vs EP3C25E144I7N)
- Same-footprint configuration reuse （vs EP3C25E144C8)
- Lead-free ordering path without changing the package （vs EP3C25E144C7N)
設計ノート
Treat the EP3C25E144C7 exposed pad as both an electrical and thermal connection. Follow the manufacturer package drawing for power and ground connectivity, then provide uninterrupted copper beneath and around the package. Use the published junction-temperature limit, device activity factor, and estimated FPGA core dissipation to calculate board temperature rise. Do not infer safe operation from the 0°C to 85°C junction range alone; junction temperature, not ambient temperature, is the controlling limit.
Implement the 1.15 V to 1.25 V core rail with low-noise, stable regulation and verify sequencing against the manufacturer power-up requirements. Place the core bypass capacitors directly at the relevant supply and ground pins using short, low-inductance paths. A Quartus power estimate should include logic, I/O, and configuration resources rather than relying only on the 437.5 MHz device benchmark. Margin for temperature, aging, and local supply tolerance should be established from the complete datasheet.
Preserve the 144-pin EQFP/LQFP footprint and exposed-pad geometry exactly, including pad dimensions, solder-mask definition, paste pattern, and copper thermal relief. Because an FPGA is not pin-compatible based on package name alone, verify the complete pin table, configuration pins, power pins, and I/O assignments against the selected ordering code. Route clocks and high-speed signals over continuous reference planes, keep the FPGA away from switching-node edges, and minimize vias in sensitive clock paths.
Do not treat EP3C25E144C7 and EP3C25E144I7N as unconditional equivalents. The C7 and I7 ordering identifiers encode different temperature-grade requirements, and adding an N suffix can identify lead-free termination rather than a functional change. Likewise, a speed-grade suffix can alter timing guarantees. Before substitution, compare the complete ordering table, absolute maximum ratings, recommended operating conditions, configuration behavior, package drawing, and lifecycle status in the manufacturer documentation.
Apply timing constraints to every clock, interface, and I/O path and complete post-fit timing analysis in the appropriate FPGA design tool. The listed 437.5 MHz maximum frequency is not a promise that every design will close at that frequency because logic depth, routing congestion, I/O standards, and memory usage affect timing. Reserve PLL outputs and dedicated clock pins where required, keep external clock jitter within the device budget, and validate external interface voltage levels independently of the 1.15 V to 1.25 V core supply.
コンプライアンス情報
The supplied web results do not provide explicit RoHS, REACH, halogen-free, or conflict-minerals declarations for EP3C25E144C7. The N suffix in related ordering codes is not sufficient to establish the target's compliance status without the manufacturer ordering and material-declaration documentation. AEC-Q100 is treated as not applicable because this industrial FPGA is not identified as an automotive-qualified product.
