LFE2-20E-7F484C - 21K LUT ECP2 FPGA, 331 I/O | Lattice
MPN： LFE2-20E-7F484C ✗ 停產LFE2-20E-7F484C 概覽
An FPGA is a reprogrammable semiconductor in which the digital logic, interconnect, and programmable I/O blocks are configured after manufacture. Within the semiconductor hierarchy, the ECP2 belongs to the FPGA and CPLD category and to Lattice's ECP2 family. Unlike a fixed-function microcontroller, an FPGA can implement parallel datapaths, control logic, interfaces, and DSP pipelines in one device, allowing hardware behavior to be changed through a configuration bitstream.
The verified product information identifies 21K LUTs, 331 I/O, DSP capability, a 1.2 V operating voltage, and a -7 speed designation. The 484-BBGA package also provides a large, mechanically dense footprint suited to boards with space for fine-pitch ball-grid-array routing. Because the supplied distributor data does not enumerate memory resources, embedded multipliers, configuration interfaces, or I/O standards, those details must be confirmed in the Lattice ECP2 family documentation before final schematic and PCB sign-off.
Typical uses for a device in this resource class include industrial control and automation, communications infrastructure, embedded video and image processing, instrumentation, and multi-channel DSP-assisted signal processing. The 331-I/O count is especially useful for designs that must connect multiple buses, capture parallel data, or control a substantial number of external signals. The DSP resources allow selected arithmetic and filtering pipelines to be implemented in parallel rather than relying entirely on sequential processor execution.
Board-level implementation should follow Lattice's published high-density BGA layout, power, and decoupling guidance. Differential pairs, clock inputs, and high-speed memory interfaces require controlled impedance, continuous return paths, and length matching; the 1.2 V core rail also requires careful sequencing and filtering. Because this MPN is reported as obsolete by one indexed source while distributor listings remain available, procurement planning should confirm lifecycle status, date codes, traceability, and current inventory before a new production release.
This page consolidates distributor specifications, package identification, lifecycle signals, and same-family upgrade paths with practical implementation guidance. It also distinguishes confirmed parameters from details that require verification against the manufacturer documentation, helping engineers evaluate fit without treating distributor snippets as a substitute for the complete datasheet.
直接替換替代品，適用於 LFE2-20E-7F484C — 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： LFE2-20E-7F484C （相同外形與佔位） — 差異在於 Speed Grade, Package, DSP Capability, Package Type, Terminal Count.
LFE2-20E-7FN484C
✅ 直接替換📋 參考替代品（不在目錄中）
LFE2-20SE-7F484C
✅ 直接替換📋 參考替代品（不在目錄中）
LFE2-20E-6FN484C
✅ 直接替換📋 參考替代品（不在目錄中）
LFE2-20E-5F484I
✅ 直接替換聯絡詢價
查看資料表 →LFE2-20E-5F484C
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →LFE2-20E-7F484C 最大額定值與電氣特性
| Device Type | ECP2 Field Programmable Gate Array (FPGA) |
| Logic Capacity | 21,000 LUTs |
| User I/O Count | 331 I/O |
| DSP Capability | DSP blocks present |
| Core Supply Voltage | 1.2 V |
| Speed Grade | -7 |
| 封裝 | 484-BBGA |
| 安裝類型 | Surface Mount |
| Programmable Device Type | FPGA |
| Manufacturer | Lattice Semiconductor |
| Distributor Availability | 8 distributors listed on Octopart |
| LCSC Stock Signal | In-stock signal shown for related LFE2-20E-7FN484C |
| DigiKey Availability Signal | Order today, ships today |
| Indexed Lifecycle Signal | Obsolete |
LFE2-20E-7F484C 484-bbga 腳位配置指南
LFE2-20E-7F484C（484-bbga 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： LFE2-20E-7F484C.
請參閱 資料表 以查看完整腳位配置。
典型應用
LFE2-20E-7F484C 適用於 6 應用s: Industrial Control and Automation, Parallel Data Acquisition, Communications Interface Aggregation, DSP-Accelerated Signal Processing, Embedded Video and Image Preprocessing, Programmable Test and Measurement.
Industrial Control and Automation
The LFE2-20E-7F484C fits industrial control modules that require 331 user I/O alongside 21,000 LUTs of programmable logic. Its ECP2 architecture can consolidate machine-control sequencing, counter, timing, and interface logic without relying on several fixed-function controllers. The 484-BBGA package also offers a dense footprint for control boards with limited connector space, although designers must budget careful escape routing and layer transitions. Because the verified data does not state industrial temperature grades, the ordering suffix and environmental qualification should be checked before deployment in factory equipment. For designs with strict timing, the -7 grade provides a defined baseline, but every external clock, bus, and safety-related path still requires static timing analysis against the applicable ECP2 documentation.
推薦
Parallel Data Acquisition
With 331 user I/O, the LFE2-20E-7F484C is well suited to parallel acquisition, test, and instrumentation systems that must sample or generate many channels. The 21,000-LUT ECP2 fabric can support control sequencing, channel mapping, timing generation, and data conditioning around the external interface. In a digitizer or protocol exerciser, parallel buses can be handled as deterministic fixed logic rather than through sequential processor loops. The 484-BBGA package demands careful ball-escape and via planning to preserve signal integrity on long copper structures. Verify the supported I/O standards and usable I/O count by bank before assigning external voltage domains, because those details are not present in the supplied distributor snippets.
推薦
Communications Interface Aggregation
The LFE2-20E-7F484C can serve as a protocol aggregation and transport engine in communications equipment, combining multiple low-speed interfaces with higher-speed programmable logic. Its 331 I/O provide practical capacity for parallel data buses, control signals, and status inputs, while 21,000 LUTs support framing, buffering, and multiplexing functions. A bridge design can place the FPGA between an external transceiver and a processor or memory subsystem, reducing processor pin and software overhead. The ECP2's DSP capability may also accelerate filtering or symbol-processing stages when the design permits parallel datapaths. Exact transceiver I/O voltage support and maximum interface performance must be confirmed before schematic freeze, particularly for any LVDS or high-speed memory connection on the 484-BBGA device.
推薦
DSP-Accelerated Signal Processing
The LFE2-20E-7F484C's combination of 21,000 LUTs, 331 I/O, and DSP resources supports parallel filtering, correlation, and digital front-end implementations in instrumentation and embedded processing systems. By mapping appropriate stages into dedicated hardware, a design can achieve predictable sample timing and reduce sequential workload on a connected processor. The 331-I/O count also allows parallel ADC or DAC interfaces to be implemented without relying exclusively on serial links. A practical design should budget routing and memory resources carefully because the verified source does not disclose embedded-memory capacity, DSP block count, or multiplier characteristics. Confirm those parameters and the target device's -7 timing behavior before committing the pipeline topology and external converter interface.
推薦
Embedded Video and Image Preprocessing
The LFE2-20E-7F484C can implement parallel pixel transport, timing generation, and image pre-processing in embedded vision modules. Its 21,000 LUTs provide logic capacity for pipeline control and preprocessing, while 331 I/O can accommodate parallel sensors, capture devices, and auxiliary interfaces. The -7 speed designation provides a defined device grade for timing closure when the architecture relies on short synchronous paths. Because ECP2 devices can include programmable DSP and dedicated memory resources, portions of filtering or color processing may be mapped into hardware, but the exact block count and memory bandwidth in the supplied data are unknown. Video interface standards, color depth, resolution, and frame rate must therefore be reconciled with the manufacturer's device resource tables before selecting the architecture.
推薦
Programmable Test and Measurement
The LFE2-20E-7F484C is applicable to automated test systems, pattern generators, and instrument controllers because it combines 21,000 LUTs with 331 user I/O. The ECP2 fabric can implement timing generators, channel sequencing, data formatting, and protocol-specific stimulus logic in parallel. This allows a single programmable device to replace a collection of discrete counters and interface components while retaining field reconfiguration flexibility. The dense 484-BBGA package requires a high-quality PCB stack-up, length-aware routing, and effective BGA assembly; these mechanical constraints are as important as logic capacity in a high-pin-count instrument. Before using the part as a drop-in replacement in an existing test system, verify configuration interface behavior, I/O standards, and timing because those device-specific details are absent from the distributor evidence.
推薦
推薦產品摘要
工程參考資料，適用於 LFE2-20E-7F484C — 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 | LFE2-20E-7FN484C | LFE2-20SE-7F484C | LFE2-20E-6FN484C | LFE2-20E-5F484I | LFE2-20E-5F484C |
|---|---|---|---|---|---|---|
| Brand | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor |
| Package | 484-BBGA | 484-BBGA - same | 484-BBGA - same | 484-BBGA - same | 484-BBGA - same | 484-BBGA - same |
| FPGA Family | ECP2 | ECP2 | ECP2 | ECP2 | ECP2 | ECP2 |
| Speed Designation | -7 | -7 | -7 | -6 | -5 | -5 |
主要差異化特點
- Closest listed ordering-code match with the same -7 speed designation (對比LFE2-20E-7FN484C)
- Higher performance grade than the -6 same-package candidate (對比LFE2-20E-6FN484C)
- Higher performance grade than two -5 alternatives (對比LFE2-20E-5F484I)
設計說明
The verified core voltage is 1.2 V, but the complete power architecture was not supplied. Follow the manufacturer ECP2 power-supply and sequencing requirements for the 484-BBGA device rather than assuming that all banks use the same voltage. Provide local high-frequency decoupling at each supply ball or supply group, keep routing resistance and inductance low, and reserve bulk capacitance near the power-entry points.
A 484-BBGA footprint requires layer-transition planning, via-in-pad or via-geometry rules, and a manufacturing process capable of inspecting dense ball pitches. Derive escape routing from the device's actual ball map rather than a generic BGA symbol. Maintain continuous ground and return paths beneath high-speed nets, and avoid splitting reference planes under clock, serial, or memory interfaces.
The 331 user I/O create many opportunities for accidental parallel routing, crosstalk, and impedance discontinuities. Route clocks and high-speed interfaces first with controlled differential impedance, then match external source-synchronous interfaces to the timing requirements of the selected ECP2 device. Keep configuration, clock, and reset routing isolated from high-current outputs and use test points that do not disturb signal integrity.
The target carries an obsolete signal in one indexed source even though distributor availability remains visible. Do not approve a new design or production purchase based on distributor search results alone. Obtain the manufacturer lifecycle or PCN notice, confirm the ordering suffix and temperature grade, require traceability and date-code documentation, and preserve a reviewed alternate plan before ordering the 484-BBGA device.
合規資訊
Compliance attributes were not present in the verified web data and have therefore not been assumed. The indexed obsolete signal does not by itself establish AEC-Q100 status; this product is an FPGA rather than an automotive-qualified device in the supplied evidence.
