LFE2-35E-5F484I - 32K LUT, 331 I/O ECP2 FPGA | Lattice
料号： LFE2-35E-5F484I ✓ 量产中LFE2-35E-5F484I 概述
An FPGA is a reconfigurable semiconductor whose lookup tables, registers, interconnect, and programmable I/O implement digital logic functions after configuration. Within the product hierarchy, the LFE2-35E-5F484I is an FPGA, a programmable-logic IC, and a semiconductor. Compared with fixed-function logic, an FPGA supports field updates, parallel processing, hardware customization, and design changes without changing the PCB. The ECP2 family balances programmable logic, embedded DSP capability, and low-power operation in a single device.
The device provides approximately 32K LUTs and 331 I/O, giving it the resources to consolidate multiple digital subsystems onto one package. Its -5 speed designation identifies the selected performance grade, while the 484-ball BGA package supports dense PCB routing and a large pin count. The 1.2 V core supply is suitable for low-energy logic systems. Exact memory-block, DSP-count, differential-I/O, operating-temperature, and package-dimension details should be confirmed in the LatticeECP2/M family data sheet before design release.
The LFE2-35E-5F484I belongs to the ECP2 family rather than the ECP2M family. This distinction matters because the family data sheet identifies advanced DSP and high-speed SERDES capabilities that are not automatically shared by every ECP2 member. Board-level compatibility must therefore be based on the exact package, speed suffix, I/O arrangement, power rails, and configuration requirements rather than the device family name alone.
Typical uses include industrial control, communications interfaces, test equipment, embedded signal processing, data acquisition, and general-purpose programmable logic. Its combination of 331 I/O and a large logic-cell count is useful when an interface-rich design must consolidate logic that would otherwise require multiple programmable devices. A synchronized switching converter or multiple regulators may be required because the core and I/O supplies can have distinct voltage requirements.
When planning a PCB, reserve the complete 484-ball land pattern, verify every power and ground ball assignment, and confirm differential-pair routing and configuration interface requirements against the family documentation. Treat the BGA package as a fine-pitch assembly constraint requiring appropriate land geometry, solder mask definition, thermal design, and inspection coverage rather than treating the FPGA as a generic fine-pitch component.
This page combines the exact LFE2-35E-5F484I ordering characteristics with same-family drop-in candidates, application guidance, and design-focused comparison data. It is intended to accelerate engineering selection while keeping unresolved device details subject to verification in the manufacturer family documentation.
直接替换替代料： LFE2-35E-5F484I ——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-5F484I （相同外形与封装尺寸） ——差异在于 Device Type, Package, Speed Grade, Core Supply Voltage, DSP Support.
LFE2-35E-5FN484I
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LFE2-35E-6F484I
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →LFE2-35E-6FN484I
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LFE2-35SE-5F484I
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LFE2-12E-5F484I
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →LFE2-35E-5F484I 最大额定值与电气特性
| Device Type | ECP2 Field Programmable Gate Array (FPGA) |
| Logic Capacity | 32000 LUTs |
| User I/O Count | 331 I/O |
| Core Supply Voltage | 1.2 V |
| Speed Grade | -5 |
| Temperature Grade | Industrial |
| 封装 | 484-BBGA |
| Package Type | BGA |
| Terminal Count | 484 balls |
| Package Shape | Square |
| 安装方式 | Surface Mount |
| DSP Support | DSP blocks |
| Programmable Logic | LUT-based FPGA |
| RoHS 状态 | unknown |
LFE2-35E-5F484I square 引脚配置指南
LFE2-35E-5F484I（square 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-5F484I.
请参阅 数据手册 以查看完整引脚配置。
典型应用
LFE2-35E-5F484I 适用于 6 应用s: Industrial Control and Automation, Communications Interface Consolidation, Data Acquisition and Signal Conditioning, Test and Measurement Equipment, Embedded DSP and Signal Processing, Embedded and Programmable Control.
Industrial Control and Automation
The LFE2-35E-5F484I is suitable for industrial control logic because it combines approximately 32K LUTs with 331 user I/O in a 484-ball BGA. The large I/O count allows motor-control, sensor-conditioning, and communications interfaces to share one programmable-logic device, while the -5 grade supports designs requiring more timing headroom than an entry-level FPGA. The industrial temperature designation makes it a candidate for factory equipment, but designers must confirm the exact temperature range and every power-ball connection in the family data sheet. This device is best suited to deterministic parallel control, interlocks, pulse counting, and machine-interface aggregation rather than applications dominated by large embedded-memory buffers.
推荐
Communications Interface Consolidation
With approximately 32K LUTs and 331 I/O, the LFE2-35E-5F484I can consolidate parallel, serial, and protocol-conversion logic around a communications subsystem. Its programmable interconnect allows designers to implement framing, filtering, buffering, and interface bridging without relying on a large collection of fixed-function devices. The 484-BBGA package provides enough ball positions for power, configuration, and high-I/O designs, although differential-pair routing and specific transceiver standards must be checked for the exact ECP2 variant. The device is especially useful where protocol logic must evolve after installation and field reconfiguration would reduce redesign costs.
推荐
Data Acquisition and Signal Conditioning
The LFE2-35E-5F484I can act as a programmable timing, control, and data-conditioning element in acquisition systems. Approximately 32K LUTs are sufficient for parallel channel sequencing, digital filtering, threshold logic, counters, and interface state machines, while 331 I/O supports multiple converters and sensors. The 1.2 V core rail supports compact low-power implementations, but board designers must account for separate I/O voltage requirements and converter supply noise. Use the part when deterministic sampling coordination and flexible post-installation logic changes are more valuable than the simplicity of a fixed-function controller.
推荐
Test and Measurement Equipment
The LFE2-35E-5F484I is applicable to programmable test systems requiring many parallel I/O and moderate logic density. Its approximately 32K LUTs can implement pattern generation, timing control, acquisition sequencing, instrument-bus adaptation, and embedded DSP-assisted processing. The 331-I/O count is valuable for connecting numerous test channels while the -5 speed grade supports demanding synchronous logic. For production instrumentation, verify whether the selected ECP2 variant supports the required high-speed I/O standards and whether the industrial temperature designation covers the intended operating environment.
推荐
Embedded DSP and Signal Processing
The LFE2-35E-5F484I can support embedded digital signal-processing functions because the ECP2 family includes DSP-oriented programmable resources and the device provides approximately 32K LUTs for control and data movement. Suitable tasks include filtering, fixed-point arithmetic, waveform generation, and sensor-signal conditioning when the exact DSP inventory and operating rates meet the design needs. Designers should use the family resource tables to map multipliers, memory, and pipeline registers rather than estimating utilization from LUT count alone. The FPGA approach provides revision flexibility and parallelism, making it useful where changing algorithms would otherwise require a new mask or discrete processor design.
推荐
Embedded and Programmable Control
The LFE2-35E-5F484I can serve as the central programmable controller in an embedded system that benefits from parallel hardware execution and field updates. Approximately 32K LUTs and 331 I/O allow state-machine-heavy control, peripheral bridging, and real-time decision logic to be integrated into one component. Compared with a microcontroller-based implementation, the FPGA offers deterministic parallel behavior and flexible I/O timing; compared with custom ASICs, it allows late design changes without a silicon respin. Program the device through a supported Lattice configuration path and include a safe recovery method so a field update cannot leave the equipment permanently inoperable.
推荐
推荐产品汇总
工程参考数据： LFE2-35E-5F484I ——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-5FN484I | LFE2-35E-6F484I | LFE2-35E-6FN484I | LFE2-35SE-5F484I | LFE2-12E-5F484I |
|---|---|---|---|---|---|---|
| Package | 484-BBGA | 484-BBGA | 484-BBGA | 484-BBGA | 484-BBGA | 484-BBGA |
| Brand | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor |
| Logic Capacity | 32000 LUTs | 32000 LUTs | 32000 LUTs | 32000 LUTs | 32000 LUTs | 12000 LUTs |
| Speed Grade | -5 | -5 | -6 | -6 | -5 | -5 |
| FPGA Family | ECP2 | ECP2 | ECP2 | ECP2 | ECP2 | ECP2 |
关键差异点
- Higher logic density within the same 484-BBGA footprint （对比 LFE2-12E-5F484I)
- Direct -5 timing-grade match （对比 LFE2-35E-5FN484I)
- Higher speed grade available in the same resource class （对比 LFE2-35E-6F484I)
- Industrial-grade resource density for interface-rich control （对比 LFE2-12E-5F484I)
设计说明
Design the board against the complete 484-ball land pattern rather than a generic BGA footprint. Confirm ball pitches, ball-map revision, pad and solder-mask dimensions, via-in-pad requirements, and assembly process constraints in the package drawing. Preserve escape routing for configuration signals and separate power and ground balls exactly as required by the family documentation; a visually identical BGA can still have different ball maps.
Plan distinct core, I/O, and auxiliary supply rails only as specified for the exact device. The LFE2-35E-5F484I has a 1.2 V core characterization, but the complete power architecture must come from the family data sheet. Place required bypass capacitance directly at the relevant balls, minimize plane transitions, and test each rail for adequate startup, sequencing, ripple, and droop behavior across the intended load range.
The 484-BBGA has many thermal and power connections, so thermal performance depends on the board escape geometry and copper available around the device. Remove the heat-spreader area only if the package drawing permits it, and connect exposed thermal balls according to the manufacturer recommendation. Use thermal analysis for high-activity designs because static logic utilization alone does not predict switching loss or local junction temperature.
Do not select a replacement from the LUT count alone. Verify the exact ordering code, speed grade, temperature marking, package ball map, configuration interface, supported I/O standards, power rails, and timing constraints. ECP2 and ECP2M devices may offer different resource levels and serial-interface capabilities even when both use a 484-ball package. Preserve a documented configuration-recovery path so programming failures do not require board replacement.
合规信息
Current manufacturer declarations are required to establish RoHS, REACH, lead-free, halogen-free, and conflict-minerals status for this exact ordering code.
