LFE2-12E-5F256C - 12K LUT FPGA, 193 I/O | Lattice Semiconductor
料号： LFE2-12E-5F256C ✗ 停产LFE2-12E-5F256C 概述
An FPGA is a programmable semiconductor whose logic, routing, and I/O resources can be configured after manufacture. Within the broader semiconductor hierarchy, the LFE2-12E-5F256C is an embedded programmable logic device, followed by the FPGA and CPLD product classes. The ECP2 family combines programmable logic, dedicated DSP capability, embedded memory, and general-purpose I/O in a single surface-mount device, making it useful where a fixed application-specific IC would be costly or inflexible.
The principal features are a 12K logic-cell capacity, 193 available I/O, a 1.2 V core voltage, and one DSP block. The 256-BGA package supports dense board layouts but requires careful BGA assembly and inspection because its balls are hidden beneath the device. The 17 mm by 17 mm outline and 311 MHz operating-frequency figure make the part appropriate for embedded control, communication, signal processing, and general programmable-logic designs where the required architecture is not economically suited to a custom ASIC.
The ECP2 architecture is designed for general-purpose embedded logic rather than the very large parallel-processing resources associated with high-end FPGA families. This distinction matters when evaluating timing closure, utilization, and tool support. A design must account for the available 193 I/O, embedded memory, clocking resources, and DSP capacity before confirming that the LFE2-12E-5F256C can meet its throughput and latency requirements.
Typical design roles include interface bridging, industrial control, embedded protocol handling, test and measurement logic, and compact DSP-assisted signal processing. The single DSP resource is meaningful for multiply-accumulate operations, but designers should verify whether one block is sufficient for the target filter, waveform, or transform. The device can also serve as a companion programmable controller beside fixed-function analog, interface, or power-management components.
PCB implementation should account for the 256-BGA assembly process, power and ground distribution, decoupling, and thermal performance. Because the verified data identifies this exact package but does not provide its complete ball map, designers must use the official Lattice package drawing to assign power, ground, configuration, clock, and user I/O balls before schematic capture or layout release. Programming, system configuration, and signal-integrity requirements should likewise be verified against the manufacturer documentation.
This product record consolidates verified distributor specifications, package information, comparison data, and practical replacement guidance that are not presented in a single manufacturer table. It also distinguishes same-footprint alternatives from functional alternatives so engineers can assess speed-grade, temperature-grade, and availability changes without assuming automatic interchangeability.
直接替换替代料： LFE2-12E-5F256C ——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： LFE2-12E-5F256C （相同外形与封装尺寸） ——差异在于 Programmable Logic, Speed Grade.
LFE2-12SE-6FN256C
✅ 直接替换📋 参考替代料（不在目录中）
LFE2-12SE-5F256I
✅ 直接替换📋 参考替代料（不在目录中）
LFE2-12E-6F256C
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →LFE2-12E-7F256C
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LFE2-12E-8F256C
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LFE2-12E-5F256C 最大额定值与电气特性
| Device Type | ECP2 Field-Programmable Gate Array (FPGA) |
| Logic Cells | 12,000 cells |
| Number of I/O | 193 I/O |
| Maximum Operating Frequency | 311 MHz |
| Core Supply Voltage | 1.2 V |
| Speed Grade | -5 |
| DSP Block Count | 1 DSP multiplier block |
| Embedded Memory Capacity | 226,304 bits |
| Package Type | 256-ball PBGA (FPBGA-256) |
| Package Dimensions | 17 mm x 17 mm |
| 安装类型 | Surface Mount |
| Programmable Logic | SRAM-configurable FPGA |
| Product Family | Lattice ECP2 |
| Manufacturer Product Status | Obsolete |
LFE2-12E-5F256C 17 mm x 17 mm 引脚配置指南
LFE2-12E-5F256C（17 mm x 17 mm 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： LFE2-12E-5F256C.
请参阅 数据手册 以查看完整引脚配置。
典型应用
LFE2-12E-5F256C 适用于 6 应用s: Industrial Embedded Control, Communications Interface Bridging, DSP-Assisted Signal Processing, Test and Measurement Instrumentation, Embedded Data Acquisition, Interface and Bus Conversion.
Industrial Embedded Control
The LFE2-12E-5F256C can serve as the programmable control core in industrial equipment when the design fits within 12,000 logic cells and 193 I/O. Its 1.2 V core supply and listed 311 MHz operating frequency support digital state machines, sensor conditioning interfaces, actuator sequencing, and supervisory logic. The 256-ball PBGA provides substantial interconnect density, but the design must include precise decoupling and a manufacturer-compliant land pattern. Because the device is obsolete, production use should include secured supply or a planned migration to a supported ECP2 option.
推荐
Communications Interface Bridging
The LFE2-12E-5F256C is useful for protocol conversion, packet routing, and legacy-interface bridging because its 12K logic capacity accommodates moderate parallel logic while 193 I/O support multiple external interfaces. A single DSP block can accelerate selected multiply-accumulate operations, although the architecture must be assessed against the one-block limit for demanding signal processing. The -5 speed grade provides 311 MHz listed operating performance, so timing closure should be completed with the actual Lattice toolchain and the exact pin assignment required by the 256-BGA design.
推荐
DSP-Assisted Signal Processing
The LFE2-12E-5F256C can implement compact DSP-assisted filtering, waveform generation, or error-correction logic where one dedicated multiplier block is sufficient. Its 12,000 logic cells provide implementation space around the DSP resource, while 226,304 bits of embedded memory support buffering and coefficient storage. The principal design trade-off is arithmetic throughput: one DSP block may be adequate for sample-rate-oriented or multiplexed operations but insufficient for heavily parallel filters. Validate numerical precision, latency, and timing using the intended ECP2 synthesis and place-and-route flow.
推荐
Test and Measurement Instrumentation
The LFE2-12E-5F256C can coordinate acquisition, trigger, timing, and data-formatting functions in compact measurement equipment. Its 193 I/O provide substantial connectivity to converters, memories, and communication transceivers, while the programmable logic supports configurable test sequences without creating a custom ASIC. The 311 MHz listed operating frequency is suitable for many control and data-movement tasks, but precision instrumentation may impose stricter timing, analog-interface, and calibration requirements. Those requirements must be evaluated independently of the FPGA's general processing capability.
推荐
Embedded Data Acquisition
The LFE2-12E-5F256C is appropriate for modular data-acquisition front ends that require programmable timing, control, and buffering. The 1.2 V core operates from a compact rail system, while 12,000 logic cells can manage acquisition sequencing and data formatting. Its 193 I/O allow parallel sensor inputs, status signals, and external memory interfaces to be integrated on one device. Designers should verify converter interface timing, memory bandwidth, and BGA routing because general I/O count does not guarantee that every required interface can meet its target frequency.
推荐
Interface and Bus Conversion
The LFE2-12E-5F256C can bridge dissimilar bus widths, translate protocol timing, or provide legacy peripheral emulation. Its 193 I/O offer substantial connectivity, and the 12K-cell ECP2 architecture allows control logic and modest data-path processing to coexist in one programmable device. The principal advantage over a fixed bridge IC is configuration flexibility, while the trade-off is development effort, validation burden, and obsolete-product sourcing risk. Pin planning should reserve configuration pins and clock resources according to the official FPBGA-256 package data.
推荐
推荐产品汇总
工程参考数据： LFE2-12E-5F256C ——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 | LFE2-12SE-6FN256C | LFE2-12SE-5F256I | LFE2-12E-6F256C | LFE2-12E-7F256C | LFE2-12E-8F256C |
|---|---|---|---|---|---|---|
| Brand | Lattice Semiconductor Corporation | Lattice Semiconductor Corporation | Lattice Semiconductor Corporation | Lattice Semiconductor Corporation | Lattice Semiconductor Corporation | Lattice Semiconductor Corporation |
| Package | FPBGA-256 | FPBGA-256 - same package format | 256-BGA - same package format | FPBGA-256 - same package format | FPBGA-256 - same package format | FPBGA-256 - same package format |
| Logic Capacity | 12,000 cells | 12K cells | 12K cells | 12K cells | 12K cells | 12K cells |
| Number of I/O | 193 I/O | 193 I/O | 193 I/O | 193 I/O | 193 I/O | 193 I/O |
| Speed Grade | -5 | -6 | -5 | -6 | -7 | -8 |
| Core Supply Voltage | 1.2 V | 1.2 V | 1.2 V | 1.2 V | 1.2 V | 1.2 V |
关键差异点
- Exact -5 speed-grade match （对比 LFE2-12SE-6FN256C)
- Verified same-class replacement with 12K capacity （对比 LFE2-12SE-5F256I)
- Higher speed-grade options remain available in the same footprint （对比 LFE2-12E-7F256C)
设计说明
Do not generate the FPBGA-256 land pattern from a generic 256-BGA footprint. Obtain the official Lattice package drawing and verify ball size, pitch, pad diameter, solder-mask definition, and component outline. Place the 1.2 V core decoupling and ground connections according to the manufacturer power architecture; the supplied excerpts do not include the required capacitor values, so no numerical placement values are asserted here.
Reserve all configuration, clock, and dedicated user-I/O balls before committing the board outline. Place the FPGA close to its high-speed memory, communication devices, and clock sources, while keeping sensitive clock routing short and away from switching nodes. The 193 available I/O should be allocated with package-ball restrictions in mind rather than treating the number as 193 freely routable signals.
Build the core supply around the verified 1.2 V requirement and validate source current, sequencing, startup behavior, and tolerance against the manufacturer data. Because the verified excerpts do not provide current limits or recommended capacitor values, the designer must obtain those values from the official ECP2 documentation. Avoid substituting a higher-speed-grade alternative until both dynamic and static power have been rechecked.
A matching 256-BGA package does not by itself prove drop-in interchangeability. Verify the ball map, configuration interface, clock pins, speed grade, temperature grade, voltage limits, and timing behavior for LFE2-12SE-6FN256C or LFE2-12SE-5F256I. Run synthesis, place-and-route, timing analysis, and bitstream-generation checks with the exact replacement MPN, and preserve an archival bitstream strategy for the obsolete target.
合规信息
The verified excerpts do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is marked not applicable because the available data does not identify this part as an automotive-qualified option.
