LFE2-12E-5Q208C - 12K LUT ECP2 FPGA 1.2V | Lattice
部品番号: LFE2-12E-5Q208C ✓ 生産中LFE2-12E-5Q208C 概要
An FPGA is a reprogrammable digital integrated circuit containing configurable logic blocks, programmable interconnect, and embedded memory. Within the semiconductor hierarchy, an FPGA is a programmable logic device, placing it between fixed-function logic ICs and application-specific ICs. The ECP2 family provides a practical balance of logic capacity, I/O availability, embedded RAM, and low power consumption for compact control, interface, and signal-processing systems.
The principal device characteristics include 12,000 logic cells distributed across 1,500 logic array blocks, 226,304 bits of total RAM, and 131 user I/O pins. The -5 speed designation identifies the device speed grade, while the Q208C suffix identifies the 208-pin lead-free plastic PQFP configuration. A 311 MHz maximum timing figure is listed in the supplied comparison data. The package is a surface-mount 208-BFQFP measuring approximately 28 mm by 28 mm.
The ECP2 architecture supports parallel digital logic, state-machine control, data acquisition, interface bridging, and fixed-point signal processing without requiring a separate external microcontroller. Embedded block RAM can hold data buffers, lookup tables, packet fields, or control state, while the large I/O count permits direct connection to parallel buses, counters, displays, and external converters. Programming is handled through the family's supported configuration workflow and appropriate Lattice design tools.
Typical uses include industrial control logic, instrumentation, communication interfaces, embedded display controllers, data-acquisition front ends, and compact sensor-processing platforms. Its 131 available I/O make it suitable for designs that need more parallel external connectivity than smaller ECP2 packages can provide. The 226,304-bit RAM budget also permits buffering multiple data words without relying on scarce external memory.
The main design constraint is board area: a 28 mm by 28 mm PQFP is physically larger than modern QFN packages and requires careful routing across two sides of the PCB. Designers should verify speed-grade timing, configuration-scheme requirements, supported I/O standards, and bank-compatible supply rails against the manufacturer datasheet before layout release.
This page consolidates distributor availability, exact device identifiers, package information, application guidance, and drop-in alternatives that are not presented together on a single distributor listing. It also distinguishes confirmed web-sourced alternatives from same-family options identified from the ECP2 naming structure, so engineers can assess each substitution before committing a design to production.
ドロップイン代替品: LFE2-12E-5Q208C — 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。
LFE2-12E-5QN208C
✅ ドロップイン📋 参考代替品（カタログ未掲載）
LFE2-12E-5Q208I
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
LFE2-12E-4Q208C
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
LFE2-12E-6Q208C
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
LFE2-12E-6QN208C
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
LFE2-12E-4QN208C
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
LFE2-12E-5Q208C 最大定格＆電気的特性
| Device Type | ECP2 Field Programmable Gate Array (FPGA) |
| Logic Elements | 12,000 cells |
| Logic Array Blocks | 1,500 LABs |
| LUT Capacity | 12K LUTs |
| User I/O Pins | 131 |
| Total RAM | 226,304 bits |
| 最大クロック周波数 | 311 MHz |
| Core Supply Voltage | 1.2 V |
| Core Supply Range | 1.14 V to 1.26 V |
| Process Technology | 90 nm CMOS |
| Speed Grade | -5 |
| パッケージ | 208-BFQFP / PQFP-208 |
| Package Dimensions | 28 mm x 28 mm |
| ピン数 | 208 |
| 実装タイプ | Surface Mount |
| Package Material | Lead-free plastic |
LFE2-12E-5Q208C lead-free plastic ピン配置ガイド
LFE2-12E-5Q208C (lead-free plastic 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: LFE2-12E-5Q208C.
詳細は データシート をご参照ください。
主な用途
LFE2-12E-5Q208C の用途: 6 件s: Industrial Control and Automation Logic, Data Acquisition Front End, Communication Interface Bridging, Embedded Display Controller, Sensor Signal Conditioning, Fixed-Point Signal Processing.
Industrial Control and Automation Logic
The LFE2-12E-5Q208C fits centralized machine-control logic because its 12,000 logic cells can implement multiple independent control domains while 226,304 bits of RAM support state tables, operating counters, and local event buffers. The 131 user I/O provide direct access to sensors, discrete actuators, interlocks, and status indicators without an external parallel interface controller. At a 1.2 V core supply and a listed 311 MHz maximum frequency, the device also supports modest control-domain timing. The design should divide I/O into voltage-compatible banks and apply the datasheet-recommended bypass and configuration circuitry.
おすすめ
Data Acquisition Front End
The LFE2-12E-5Q208C is useful for parallel data-acquisition front ends that require local channel counting, filtering, and packet preparation before transfer to a processor. Its 12K LUTs can sustain multiple control and arithmetic pipelines, while 226,304 bits of embedded RAM can buffer captured words or implement dual-port data storage. The 131 I/O allow direct connection to parallel ADC outputs, clock signals, and capture-status lines. Designers should confirm converter interface voltage standards and timing closure against the -5 speed grade rather than assuming every 208-pin ECP2 variant is timing-compatible.
おすすめ
Communication Interface Bridging
The LFE2-12E-5Q208C can bridge parallel processor buses to slower serial or parallel peripherals because programmable logic can implement framing, checksum, FIFO, and protocol state-machine functions. The 226,304 bits of RAM allow packet buffering without a separate memory component, and 131 user I/O leave sufficient parallel capacity for address, data, and control signals. The 1.2 V core helps simplify internal power distribution, although external transceiver I/O still require the correct voltage translation and termination. A production design should verify supported I/O standards and maximum interface rates in the ECP2 datasheet.
おすすめ
Embedded Display Controller
The LFE2-12E-5Q208C fits display-controller designs that combine rendering, timing, and input handling in one programmable device. Its 12K LUT capacity can support character or graphic pipeline logic, while the large I/O count accommodates display data, address lines, synchronization, and keypad or touch inputs. Embedded RAM can store glyphs, frame data, or double buffers, reducing external memory requirements. The 28 mm by 28 mm PQFP footprint is larger than a modern QFN alternative, so the PCB should provide adequate fan-out routing and consider the I/O voltage and drive limits of the selected panel interface.
おすすめ
Sensor Signal Conditioning
The LFE2-12E-5Q208C can perform digital sensor conditioning such as filtering, calibration-table lookup, debouncing, and event sequencing. Its 12,000 logic cells allow multiple sensor channels to share programmable pipelines, and 226,304 bits of RAM can hold calibration coefficients or rolling measurement windows. With 131 user I/O, the device can accept digital sensor outputs and produce consolidated status or alarm signals. Actual analog conditioning must occur in external components, so this application is best suited to digital sensors with comparator, ADC, or serial-interface front ends. Confirm I/O standards and pin-bank constraints for each connected device.
おすすめ
Fixed-Point Signal Processing
The LFE2-12E-5Q208C is appropriate for moderate fixed-point filtering, waveform generation, or digital modulation because the -5 speed grade and listed 311 MHz maximum frequency support pipelined arithmetic. Twelve thousand logic cells can distribute multiply-accumulate stages across the ECP2 fabric, while embedded RAM provides coefficient storage and sample buffering. The 131 I/O are suitable for parallel datapaths and clock-enabled interfaces. The implementation should include pipeline registers and timing constraints in the project rather than treating the theoretical maximum frequency as guaranteed system performance; board-level skew and the selected I/O path also affect the final result.
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: LFE2-12E-5Q208C — 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 | LFE2-12E-5QN208C | LFE2-12E-5Q208I | LFE2-12E-4Q208C | LFE2-12E-6Q208C | LFE2-12E-6QN208C | LFE2-12E-4QN208C |
|---|---|---|---|---|---|---|---|
| Package | 208-BFQFP (PQFP-208) | 208-BFQFP (PQFP-208) | 208-BFQFP (PQFP-208) | 208-BFQFP (PQFP-208) | 208-BFQFP (PQFP-208) | 208-BFQFP (PQFP-208) | 208-BFQFP (PQFP-208) |
| Brand | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor |
| FPGA Family | Lattice ECP2 | Lattice ECP2 | Lattice ECP2 | Lattice ECP2 | Lattice ECP2 | Lattice ECP2 | Lattice ECP2 |
| Logic Elements | 12,000 cells | 12,000 cells | 12,000 cells | 12,000 cells | 12,000 cells | 12,000 cells | 12,000 cells |
| LUT Capacity | 12K LUTs | 12K LUTs | 12K LUTs | 12K LUTs | 12K LUTs | 12K LUTs | 12K LUTs |
| Total RAM | 226,304 bits | 226,304 bits | 226,304 bits | 226,304 bits | 226,304 bits | 226,304 bits | 226,304 bits |
| Speed Grade | -5 | -5 | -5 | -4 | -6 | -6 | -4 |
| Core Supply Voltage | 1.2 V (1.14 V to 1.26 V) | 1.2 V | 1.2 V | 1.2 V | 1.2 V | 1.2 V | 1.2 V |
| Process Technology | 90 nm CMOS | 90 nm CMOS | 90 nm CMOS | 90 nm CMOS | 90 nm CMOS | 90 nm CMOS | 90 nm CMOS |
主な差別化要因
- Web-confirmed same-package replacement with the closest ordering code （vs LFE2-12E-5QN208C)
- Higher-speed same-footprint option for timing-constrained designs （vs LFE2-12E-6Q208C)
- Lower-cost timing-relaxed option with the same logic envelope （vs LFE2-12E-4Q208C)
設計ノート
The 208-BFQFP body is approximately 28 mm square, so reserve substantially more PCB area than a modern QFN FPGA would require. Place decoupling capacitors at the appropriate core and I/O supply pins, route high-speed nets with short paths and controlled impedance, and keep configuration and programming signals away from sensitive analog or clock inputs. Because individual bank assignments are not present in the supplied data, determine every VCC, VSS, and user-I/O connection from the manufacturer package drawing before fabrication.
Do not treat every ECP2 ordering suffix as automatically interchangeable. A speed-grade change can alter timing closure, while commercial, industrial, and additional ordering codes may carry different qualification or lifecycle conditions. The LFE2-12E-5QN208C is the closest web-confirmed replacement, but the N and I suffixes must be decoded from the Lattice ordering information. Also verify that the chosen alternative provides the same configuration scheme, embedded-memory resources, I/O standards, and package pinout before releasing a substitute into production.
The target's -5 grade and listed 311 MHz maximum frequency should be treated as device-family timing information rather than guaranteed board performance. Constrain all clock domains, use the speed grade selected for the production part, and avoid long stub branches on external buses. For source-synchronous or high-speed parallel interfaces, follow the datasheet's I/O timing and board-level skew guidance. Adding external bus transceivers can change voltage, direction, and propagation-delay requirements, so they must be validated as a complete interface rather than added solely for convenience.
The core operates at 1.2 V with a stated range of 1.14 V to 1.26 V. Use the manufacturer-recommended regulator topology and place local high-frequency bypass capacitance close to the device's supply pins. Do not infer I/O voltage directly from the 1.2 V core specification: user-I/O and configuration rails may use different supported voltages. Verify every power rail, sequencing requirement, current budget, and I/O bank voltage against the datasheet before selecting the power-supply components.
コンプライアンス情報
The verified comparison data identifies the package as lead-free plastic. No explicit RoHS, REACH, halogen-free, AEC-Q100, or conflict-minerals declaration was supplied, so those fields remain unknown rather than assumed.
