LFE2-20E-7F672C - 21K LUT FPGA | Lattice Semiconductor
料号： LFE2-20E-7F672C ✓ 量产中LFE2-20E-7F672C 概述
A field-programmable gate array is a semiconductor whose logic architecture is configured after fabrication. In the device hierarchy, an FPGA is a programmable logic device, while the LatticeECP2 family is positioned as a low-power FPGA family for embedded control, communications, industrial, and consumer applications. Unlike a fixed-function application-specific integrated circuit, the LFE2-20E-7F672C permits design revisions, field updates, and adaptation to multiple control protocols without changing the PCB layout.
Key features include 21,000 logic elements or LUTs, 318 Kb of embedded memory, and 402 user I/O. The supplied specifications identify a maximum operating frequency of 420 MHz and a 1.2 V operating supply voltage. Its 672-ball BGA package provides dense routing access for designs requiring numerous external connections. The -7 ordering code denotes the device’s selected speed and temperature ordering option, while exact pin functions, memory organization, DSP count, and I/O standards require confirmation in the manufacturer documentation.
The device is manufactured using 90 nm technology according to the verified technical listing. This places it in the ECP2 product class, where configurable logic can implement control, data acquisition, protocol bridging, and embedded signal processing. The 1.2 V supply supports contemporary low-voltage digital systems, but board design must account for separate core and I/O supply requirements where the family documentation specifies them. Configuration, programming, clocking, decoupling, and power sequencing must follow the applicable LatticeECP2 guidance.
Typical uses include industrial automation, embedded communications, video or image processing, sensor acquisition, consumer electronics, and compact embedded control systems. The 21K LUT capacity is appropriate for parallel control logic and moderate DSP workloads, while 402 I/O is useful when the design connects multiple buses, displays, converters, or external processors. Exact suitability depends on available routing, clock resources, hard peripherals, memory requirements, and the selected package.
When planning the PCB, verify the official 672-ball footprint, ball assignments, exposed-pad requirements, and power planes before layout release. Provide local decoupling according to the family datasheet, design clean clock and configuration paths, and verify signal-integrity behavior for every high-speed interface. Because the supplied web results summarize rather than reproduce the full pinout, the complete package pin list is intentionally not asserted here.
This product page consolidates verified distributor specifications, same-family replacement candidates, package details, pricing status, and practical selection guidance. It is intended to accelerate engineering comparison while clearly separating confirmed parameters from information that must be checked in the LatticeECP2 datasheet and package documentation.
直接替换替代料： LFE2-20E-7F672C ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
LFE2-20SE-7F672C
✅ 直接替换📋 参考替代料（不在目录中）
LFE2-20E-7FN672C
✅ 直接替换📋 参考替代料（不在目录中）
LFE2-20E-6FN672C
✅ 直接替换📋 参考替代料（不在目录中）
LFE2-20E-7F672C-ND
✅ 直接替换📋 参考替代料（不在目录中）
LFE2-20E-6F672C
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LFE2-20E-8F672C
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LFE2-20E-7F672C 最大额定值与电气特性
| Device Type | Field Programmable Gate Array (FPGA) |
| FPGA Family | LatticeECP2 |
| Maximum Frequency | 420 MHz |
| 工作电源电压 | 1.2 V |
| Maximum Operating Temperature | 85 °C |
| Logic Elements | 21,000 cells |
| Look-Up Tables | 21K LUTs |
| Embedded Memory | 318 Kb |
| User I/O | 402 I/O |
| Total Terminal Count | 672 terminals |
| 封装 | 672-pin FBGA |
| Package Type | BGA, square, ball terminal |
| Process Technology | 90 nm |
LFE2-20E-7F672C bga, square, ball terminal 引脚配置指南
LFE2-20E-7F672C（bga, square, ball terminal 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： LFE2-20E-7F672C.
请参阅 数据手册 以查看完整引脚配置。
典型应用
LFE2-20E-7F672C 适用于 6 应用s: Industrial Automation Controller, Embedded Communications Gateway, Video Image Preprocessing, Data Acquisition and Sensor Fusion, Programmable Logic Test Platform, Consumer and Embedded Control.
Industrial Automation Controller
The LFE2-20E-7F672C fits industrial automation controllers that coordinate sensors, actuators, motion logic, and communications within one programmable device. Its 21,000 logic cells provide substantial capacity for sequencing and state-machine logic, while 402 I/O allow the controller to interface with numerous discrete inputs, outputs, encoders, and field-bus transceivers. The 1.2 V core supply and 420 MHz maximum frequency support demanding control logic without using a separate microcontroller for simple peripheral functions. Designers should budget core and I/O supply rails independently, confirm supported I/O standards, and validate timing against the selected ECP2 speed grade before releasing the controller.
Embedded Communications Gateway
The LFE2-20E-7F672C is suitable for embedded communication gateways that translate among serial interfaces or implement protocol-specific framing and buffering. Its 21K LUT fabric can run parallel state machines, CRC logic, packet filters, and bus arbitration, while the 402 available I/O can reduce the need for external logic when several protocols or status signals are present. The 420 MHz maximum frequency provides headroom for pipelined datapaths and clocked interface logic. Final implementation must confirm the actual I/O-standard, PLL, clock, and memory resources required by the selected protocol suite, as these details are not included in the verified distributor snippets.
Video Image Preprocessing
The LFE2-20E-7F672C can support parallel video timing control, pixel-domain processing, test-pattern generation, or interface conditioning in embedded imaging systems. The 21,000-cell architecture is large enough to combine control and moderate processing functions, while 402 I/O can accommodate parallel data paths and synchronization signals when an external video device supplies data. The device’s 420 MHz maximum operating frequency is useful for timed digital pipelines, although actual image throughput depends on routing, memory bandwidth, clocking, and the availability of suitable hard DSP blocks. Engineers should verify those resources and the required video I/O standards in the LatticeECP2 family documentation.
Data Acquisition and Sensor Fusion
The LFE2-20E-7F672C is well suited to consolidating acquisition control, digital filtering, calibration, and sensor-format conversion in a compact embedded module. Its 318 Kb of embedded memory can buffer or organize sample data, while 21K LUTs support parallel filters, counters, interpolation, and digital sensor compensation. With 402 I/O, the FPGA can connect multiple converters, digital sensors, triggers, and status outputs without requiring several separate logic devices. Designers should use the family timing resources to establish deterministic acquisition timing, verify available memory organization, and calculate data latency from the actual pipeline rather than from the 420 MHz headline frequency alone.
Programmable Logic Test Platform
The LFE2-20E-7F672C is appropriate for programmable test and measurement logic that generates patterns, captures responses, and coordinates instruments or device-under-test interfaces. Its 21K LUT capacity and 402 I/O permit concurrent channels and extensive fixture signaling, while the 672-ball package supports dense board routing. The 420 MHz maximum frequency enables high-rate digital test patterns when external sources do not drive every function. Because the supplied data does not enumerate PLL count, pin standards, configuration resources, or memory blocks, engineers must verify those facilities for the exact 672-ball device and include worst-case timing uncertainty in the test budget.
Consumer and Embedded Control
The LFE2-20E-7F672C can consolidate display control, user-interface logic, peripheral management, and product-specific sequencing in a single embedded controller. The 21,000-cell fabric is suitable for moderately logic-heavy consumer products, and 402 I/O provides connectivity to displays, buttons, audio or communication converters, and power-control devices. Its 1.2 V operating supply aligns with compact mixed-signal systems, but I/O rails may require separate regulation depending on external voltage standards. Before schematic approval, verify the exact supported I/O voltages, configuration scheme, clock-management resources, and embedded-memory organization from the manufacturer documentation.
工程参考数据： LFE2-20E-7F672C ——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 | LFE2-20SE-7F672C | LFE2-20E-7FN672C | LFE2-20E-6FN672C | LFE2-20E-7F672C-ND | LFE2-20E-6F672C | LFE2-20E-8F672C |
|---|---|---|---|---|---|---|---|
| Package | 672-pin FBGA | 672-pin FBGA | 672-pin FBGA | 672-pin FBGA | 672-pin FBGA | 672-pin FBGA | 672-pin FBGA |
| Brand | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor |
| Logic Cells | 21,000 cells | 21,000 cells | 21,000 cells | 21,000 cells | 21,000 cells | 21,000 cells | 21,000 cells |
| User I/O | 402 I/O | 402 I/O | 402 I/O | 402 I/O | 402 I/O | 402 I/O | 402 I/O |
| Operating Supply Voltage | 1.2 V | 1.2 V | 1.2 V | 1.2 V | 1.2 V | 1.2 V | 1.2 V |
| Embedded Memory | 318 Kb | 318 Kb | 318 Kb | 318 Kb | 318 Kb | 318 Kb | 318 Kb |
| Technology | 90 nm | 90 nm | 90 nm | 90 nm | 90 nm | 90 nm | 90 nm |
| Special Ordering Feature | -7 ordering code | SE ordering option | FN ordering option | -6 speed grade and FN ordering option | ND no-lead packaging option | -6 speed grade | -8 speed grade |
关键差异点
- Higher specified operating frequency than the -6 family option （对比 LFE2-20E-6FN672C)
- Exact -7 ordering configuration （对比 LFE2-20SE-7F672C)
- Documented availability and price reference for the nearest ordering variant （对比 LFE2-20E-7FN672C)
- High-density package and I/O capacity for consolidated embedded designs （对比 LFE2-20E-6F672C)
设计说明
The verified package is a 672-ball FBGA, but the supplied results do not provide the official land pattern, ball map, or pin table. Do not infer the footprint from a generic BGA drawing. Before PCB release, compare the selected Lattice ECP2 672-BBGA mechanical drawing and pinout for the exact ordering code, then map every power, ground, configuration, clock, and user I/O ball in the schematic and layout. The library contains no matching 672-pin SVG key, so package_svg_key is correctly set to default rather than an invented diagram.
The verified operating supply is 1.2 V, but core current, I/O current, static power, and dynamic power are absent from the supplied data. Do not size the supply from the 420 MHz frequency alone. Obtain the family power tables, estimate utilization and switching activity for the compiled design, include I/O drive and termination loads, and add appropriate design margin for temperature and manufacturing variation. Keep the FPGA core and any independently powered I/O domains separated according to the manufacturer schematic guidance.
Plan the 672-ball layout with short clock and configuration paths, continuous return-plane access, and minimal stubs on high-speed nets. The verified 420 MHz maximum is a device capability, not a guarantee that every I/O path can operate at that rate. Apply the family I/O standards and timing constraints, use controlled-impedance routing where required, and reserve differential or source-synchronous layout techniques only after confirming the exact I/O capability in the datasheet. Validate final timing and signal integrity on the assembled board.
The order code contains meaningful speed and commercial suffixes, so a near match in family name is not sufficient for substitution. Before replacing LFE2-20E-7F672C, compare the ordering guide, pin table, configuration method, supported resources, temperature grade, speed grade, and I/O ratings. The -6 alternatives can reduce timing margin relative to the 420 MHz target, while SE and FN options may change system-level behavior. Preserve the exact approved MPN in AVL and procurement systems until validation is complete.
合规信息
The supplied web results do not contain verified RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification statements. AEC-Q100 is treated as not applicable because this LatticeECP2 FPGA is not presented as an automotive-qualified device.
