LFE2-35E-6F484I - 32K LUT ECP2 FPGA | Lattice Semiconductor
料号： LFE2-35E-6F484I ✓ 量产中LFE2-35E-6F484I 概述
An FPGA is a programmable semiconductor in which the logic, interconnect, and digital signal-processing resources are configured after manufacture. ECP2 devices belong to the broader field-programmable logic hierarchy, combining configurable LUT-based logic, embedded memory, programmable I/O, and dedicated DSP resources in one device. This combination allows designers to implement parallel digital logic, control functions, interface logic, and fixed-point processing without changing the physical PCB when design requirements evolve.
The LFE2-35E-6F484I provides 32,000 logic elements, corresponding to 4,000 LUTs, together with 339,968 RAM bits and 331 user I/O. The -6 speed designation identifies the device speed grade, while the final letter in the part number identifies the package and temperature-related ordering information. Its 484-ball package supports dense PCB routing for systems requiring substantial I/O, including industrial control, communications, instrumentation, embedded processing, and general-purpose programmable logic.
The device also includes DSP capability, making it suitable for fixed-point filtering, signal conditioning, and control-loop implementations where parallel logic and dedicated arithmetic resources are useful. Its 1.2 V-class supply requirement places it in modern low-voltage digital systems, while the 331 user I/O provide substantial connectivity for external memories, sensors, converters, transceivers, and industrial interfaces.
When designing a board around the LFE2-35E-6F484I, follow the manufacturer’s BGA layout, power-supply, decoupling, and programming guidelines. Pay particular attention to the required core voltage tolerance, signal-transition requirements, thermal conditions, and the configuration interface used during programming. The large BGA footprint also benefits from careful layer planning and controlled escape routing for high-speed and high-fan-out connections.
This page consolidates the device’s electrical, packaging, and application information, identifies a confirmed same-family alternative, and provides practical selection and layout guidance for engineers evaluating the LFE2-35E-6F484I for a new FPGA design.
直接替换替代料： LFE2-35E-6F484I ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： LFE2-35E-6F484I （相同外形与封装尺寸） ——差异在于 Core Supply Voltage, Device Type, Package, Speed Grade.
LFE2-35E-6FN484I
✅ 直接替换📋 参考替代料（不在目录中）
LFE2-35E-6F484I 最大额定值与电气特性
| Device Type | ECP2 Field Programmable Gate Array (FPGA) IC |
| Logic Elements | 32,000 |
| Look-Up Tables | 4,000 LUTs |
| Total RAM | 339,968 bits |
| User I/O | 331 |
| DSP Resources | Present |
| Core Supply Voltage | 1.14 V to 1.26 V |
| Nominal Supply Voltage | 1.2 V |
| Speed Grade | -6 |
| Junction Temperature Range | -40 °C to 100 °C |
| 封装 | 484-pin FBGA |
| 引脚数 | 484 pins |
| 安装类型 | Surface Mount |
| Technology | 90 nm |
| Programmable Architecture | LUT-based FPGA with embedded RAM and DSP |
| Manufacturer | Lattice Semiconductor Corporation |
| 生命周期状态 | Active |
LFE2-35E-6F484I 484-pin fbga 引脚配置指南
LFE2-35E-6F484I（484-pin fbga 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： LFE2-35E-6F484I.
请参阅 数据手册 以查看完整引脚配置。
典型应用
LFE2-35E-6F484I 适用于 6 应用s: Industrial Control Systems, Communications Interface Consolidation, Data Acquisition and Instrumentation, Fixed-Point Signal Processing, Embedded Sensor and Condition Monitoring, Programmable Logic Consolidation.
Industrial Control Systems
The LFE2-35E-6F484I suits industrial controllers that coordinate sensors, actuators, communication links, and real-time decision logic. Its 32,000 logic elements provide substantial configurable control capacity, while 331 user I/O allow direct connection to digital inputs, outputs, counters, and industrial interface devices. The 1.14 V to 1.26 V core range supports compact low-voltage digital platforms. The -40 °C to 100 °C junction specification aligns with many industrial environments. Designers should reserve clean power planes, controlled clock distribution, and defined external standards so the FPGA remains reliable under electrical noise and temperature variation.
推荐
Communications Interface Consolidation
The LFE2-35E-6F484I can consolidate protocol conversion, framing, filtering, and interface control into one programmable device. Its 4,000 LUTs and 339,968 RAM bits are useful for parallel-to-serial conversion, packet buffering, and state machines, while 331 user I/O support multiple data buses. DSP resources can accelerate fixed-point signal processing within a communication path. The architecture is particularly useful when protocols or line rates evolve after hardware layout is fixed. Board planning must reserve appropriate level shifters, clocking components, termination, and isolation where required by the external communication standard.
推荐
Data Acquisition and Instrumentation
The LFE2-35E-6F484I is appropriate for instrumentation that must coordinate sampling, timing, data packing, and control logic. The 339,968 RAM bits can support acquisition buffers and working storage, while the programmable I/O can interface with sensors, converters, counters, and display or communications subsystems. Its DSP capability provides a path to fixed-point filtering and signal conditioning without requiring a separate accelerator in every design. The 484-pin package offers high connectivity but requires careful layer allocation so analog-sensitive and digital-routing areas remain separated.
推荐
Fixed-Point Signal Processing
The LFE2-35E-6F484I combines configurable LUT logic, embedded RAM, and DSP resources for fixed-point filtering, demodulation, waveform generation, and conditioning. The parallel nature of FPGA logic makes it useful when the design must process samples on fixed intervals or implement multiple arithmetic paths concurrently. Its 4,000 LUTs and 339,968 RAM bits support moderate-sized pipelines and data storage. Implementation quality depends on clocking, pipeline latency, and resource mapping, so use the manufacturer’s DSP construction guidance and validate timing with the final constraints and board configuration.
推荐
Embedded Sensor and Condition Monitoring
The LFE2-35E-6F484I can combine sensor conditioning, filtering, event detection, and control output in a single programmable platform. Its 331 user I/O provide broad connectivity to digital sensors, switches, status indicators, and actuators, while DSP resources support arithmetic on sensor data. This flexibility is useful when new measurement modes must be added without changing the controller board. Because industrial sensors can introduce transients and ground offsets, the design should include suitable protection, isolation, filtering, and grounding rather than relying on the FPGA alone for signal conditioning.
推荐
Programmable Logic Consolidation
The LFE2-35E-6F484I is useful when several fixed-function logic blocks can be replaced by one configurable device. The 32,000 logic elements can implement control, sequencing, counters, protocol state machines, and data-format conversion, while 339,968 RAM bits add embedded storage. Consolidating these functions can reduce board area and simplify updates because the bitstream can change after deployment. The tradeoff is the complexity of configuration, timing closure, and in-field programming. Maintain a controlled bitstream release process and verify unused I/O states, startup behavior, and recovery requirements before production deployment.
推荐
推荐产品汇总
工程参考数据： LFE2-35E-6F484I ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | LFE2-35E-6FN484I |
|---|---|---|
| Brand | Lattice Semiconductor | Lattice Semiconductor |
| Package | 484-pin FBGA | 484-pin FBGA |
| Family | ECP2 | ECP2 |
| Logic Elements | 32,000 | 32,000 |
| Look-Up Tables | 4,000 LUTs | 4,000 LUTs |
| Total RAM | 339,968 bits | 339,968 bits |
| User I/O | 331 | 331 |
| Speed Grade | -6 | -6 |
| DSP Capability | Yes | Yes |
关键差异点
- High I/O density in a single ECP2 device （对比 LFE2-35E-6FN484I)
- Balanced programmable logic and DSP capability （对比 LFE2-35E-6FN484I)
- Industrial junction-temperature capability （对比 LFE2-35E-6FN484I)
设计说明
Design the 484-ball FBGA layout from the manufacturer’s land pattern and assembly guidance. Reserve individual layers for BGA escape routing, power distribution, and high-speed signals, and route sensitive interfaces away from switching nodes and inductors. The large pin count increases routing congestion, so complete signal-integrity and assembly-rule checks before release.
Maintain the LFE2-35E-6F484I core supply within 1.14 V to 1.26 V across voltage tolerance, temperature, and transient conditions. Separate the digital core supply from noisy analog or switching-supply sections where practical, place local bulk and bypass capacitance at the supply-entry points, and follow the manufacturer’s recommended power and ground-plane topology.
Do not approve a replacement based only on the visible package, LUT count, and I/O count. Check the complete ordering table, electrical limits, temperature suffix, configuration interface, and every BGA ball assignment. In particular, verify that the JEDEC-compatible ball map and user I/O positions match the original design before treating LFE2-35E-6FN484I as a substitution.
Use a continuous, low-impedance ground structure beneath and between signal layers, and provide symmetric clock distribution to minimize skew across the FPGA. Keep configuration and JTAG access paths away from high-voltage isolation gaps and noisy interfaces. Because this device combines 331 user I/O with a large BGA, perform complete escape-routing analysis before fixing component placement.
Estimated thermal planning must use the actual ECP2 core dissipation, package thermal data, board copper area, airflow, and maximum ambient temperature; these inputs are not established by the distributor listing. Place the device where the PCB can spread heat effectively, monitor temperature in the worst-case operating mode, and avoid placing it immediately beside a high-loss switching component without an explicit thermal review.
合规信息
The verified technical listings do not state component-level RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is not applicable because the ECP2 FPGA is not presented as an automotive-qualified device in the verified data.
