LFE2-20E-5F484I - 21K LUT FPGA, 331 I/O | Lattice Semiconductor
부품 번호: LFE2-20E-5F484I ✓ 활성LFE2-20E-5F484I 개요
A field-programmable gate array is a programmable digital integrated circuit composed of configurable logic blocks, programmable interconnect, and input/output resources. Within the semiconductor hierarchy, an FPGA is a digital IC, and within programmable logic, the LatticeECP2 family provides a mid-density platform combining logic fabric, block RAM, multipliers, DSP capability, and high-speed I/O. This device occupies the 21K-cell position in the ECP2 family.
The verified device characteristics include a 90 nm CMOS process, 1.2 V supply, 21K logic cells, 331 I/O, and a -5 speed designation. Its 484-ball surface-mount FBGA package supports high pin density and is supplied in a manufacturer-standard tray. Mouser classifies the part as an FPGA with 21K LUTs, 331 I/O, and DSP capability.
The LFE2-20E-5F484I is positioned for designs where deterministic programmable logic, embedded DSP processing, and a large parallel I/O count are more important than the lowest unit price. Its 484-pin FBGA footprint can support substantial external connectivity, although BGA layout demands careful escape routing, continuous supply planes, and controlled via distribution. Because the complete verified data does not provide pin-level tables, a package drawing should be consulted before layout is released.
Typical uses include industrial control and automation, networked data acquisition, video or image-processing front ends, communications infrastructure, and test equipment. The 331 I/O count makes the device appropriate for systems that terminate many parallel buses or high-pin-count expansion interfaces, while the ECP2 DSP resources can accelerate filtering, arithmetic, and signal-processing functions without relying on a separate processor.
The primary design consideration is package complexity. A 484-pin FBGA assembly needs thermal-via arrays, short power-plane connections, multiple decoupling positions, and escape routing for configuration, clock, and high-speed interfaces. Signal integrity should be validated against the actual interface rate because the verified web results do not specify a complete I/O performance table.
This page combines verified distributor identification, device-family positioning, same-package ECP2 alternatives, and practical BGA design guidance. It also separates confirmed specifications from data that must be checked in the LatticeECP2/M family datasheet before schematic release, PCB layout, or production sourcing.
드롭인 대체품: LFE2-20E-5F484I — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: LFE2-20E-5F484I (동일 폼 팩터 및 풋프린트) — 차이점: Device Type, Speed Grade, Package, Package Type, Process Technology.
LFE2-20E-5FN484I
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
LFE2-20E-6F484I
✅ 드롭인가격 문의
데이터시트 보기 →LFE2-20E-4F484I
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
LFE2-20E-5F484C
✅ 드롭인 ⚠️ 사양 미검증가격 문의
데이터시트 보기 →LFE2-20E-8F484I
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
LFE2-20E-5F484I 최대 정격 & 전기적 특성
| Device Type | Field-Programmable Gate Array (FPGA) |
| FPGA Family | LatticeECP2 |
| Programmable Logic Cells | 21,000 cells |
| Logic Capacity | 21K LUTs |
| User I/O Count | 331 I/O |
| DSP Support | Yes |
| Core Supply Voltage | 1.2 V |
| Speed Grade | -5 |
| Process Technology | 90 nm CMOS |
| Package Type | 484-pin FBGA |
| Package Ball Count | 484 balls |
| 실장 유형 | Surface mount |
| Shipping Package | Tray |
| Programmable Logic Category | Programmable logic devices |
| IC Classification | Embedded FPGAs |
| Logic Block Resource | 282,624 logic cells (family listing reference) |
| Temperature Indicator | I suffix indicates the industrial ordering designation |
LFE2-20E-5F484I tray 핀 구성 가이드
LFE2-20E-5F484I(tray 패키지)의 핀 구성입니다. 이 디지털 IC에는 GPIO, 통신 인터페이스(UART, SPI, I2C), 전원 핀이 포함되어 있습니다. 대체 핀 기능과 구성 옵션은 제조사 데이터시트를 참조하십시오. 임베디드 시스템 설계와 PCB 레이아웃에 필수적입니다.
다음에 대한 상세 핀아웃 데이터 없음: LFE2-20E-5F484I.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
LFE2-20E-5F484I 적합 용도: 6 애플리케이션s: Industrial Automation and Control, Parallel Data Acquisition, Communications Interface Consolidation, Test and Measurement Equipment, Image and Signal Processing, Embedded System Control Hub.
Industrial Automation and Control
The LFE2-20E-5F484I fits centralized machine-control systems because its 21K LUTs can implement sequencing logic, motion-control interfaces, and safety monitoring while 331 I/O terminate numerous discrete and bus connections. The 1.2 V ECP2 core operates from the same 90 nm CMOS family architecture used across the LatticeECP2 portfolio. Designers can place the device between field-level sensors and actuators, using programmable logic for protocol conversion and timing. The 484-pin FBGA provides the pin density required for parallel interfaces, although industrial deployments require verified temperature coverage and EMC validation. Because the supplied data does not confirm the exact operating-temperature limits or isolated I/O ratings, those limits must be taken directly from the family documentation before a production design is released.
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Parallel Data Acquisition
The LFE2-20E-5F484I is appropriate for multichannel acquisition because 331 user I/O can aggregate several wide parallel sensors, counters, or digitizer interfaces without requiring a large pin-count bridge. Its 21K LUT class supplies the logic needed for sample control, channel interleaving, thresholding, and packing data into a serial link. The device also includes DSP resources, allowing selected filtering or arithmetic to run directly in the programmable fabric. Designers should confirm bank voltage limits, dedicated configuration pins, and the final usable-I/O budget in the manufacturer pin table. A single 1.2 V core rating does not describe every I/O voltage, so external level translators may still be required when sensors operate at other logic levels.
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Communications Interface Consolidation
The LFE2-20E-5F484I can consolidate multiple communications interfaces in access equipment, industrial gateways, and test systems. Its 331 I/O support parallel buses and chip selects, while 21K LUTs provide buffering, framing, FIFO control, and protocol state machines around external PHY or transceiver devices. The -5 grade belongs to the ECP2 family and should be matched against the worst-case timing requirement rather than selected solely by a generic speed number. Use the manufacturer timing report for every clock domain and confirm whether the -6 alternative has adequate margin. Because the verified web data does not identify the supported SerDes resources for this specific non-ECP2M device, the design should treat high-speed serial interfaces as external blocks unless that capability is confirmed in the official data sheet.
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Test and Measurement Equipment
The LFE2-20E-5F484I is suitable for programmable test and measurement front ends where sequencing, pattern generation, and result analysis benefit from deterministic parallel hardware. Its 21K LUTs can implement test engines and timing state machines, while DSP resources can support digital filters or calibration algorithms. The 331 I/O count allows the FPGA to interface directly with multiple DUTs, relay drivers, capture registers, and high-speed logic probes. The ECP2 architecture also makes it a reasonable platform for synchronizing instrument functions when paired with a low-jitter clock source. Before committing, engineers should verify differential I/O availability, supported I/O standards, and performance-grade limits because those details are not included in the supplied distributor snippets.
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Image and Signal Processing
The LFE2-20E-5F484I fits parallel image-pipeline and general signal-processing designs because its DSP resources complement the 21K-cell logic fabric. Engineers can implement parallel filtering, pixel classification, interpolation, and data reduction in programmable logic while the 331 I/O stream data from sensors or downstream converters. The -5 speed grade provides a defined device variant for timing closure, but the exact multiplier and block-RAM counts are not included in the verified data and must be checked before architecture selection. Power and thermal planning are also important because a 484-ball FBGA concentrates supply connections and signal escapes in a small area. Use a dense ground plane, multiple decoupling positions, and a manufacturer-recommended via pattern to keep the 1.2 V core rail stable.
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Embedded System Control Hub
The LFE2-20E-5F484I can act as the programmable control hub in an embedded instrument, appliance, or communications enclosure. The 21K LUTs accommodate boot logic, watchdog tasks, interrupt aggregation, DMA-style movement, and peripheral bridges, while the 331 I/O reduce the need for discrete glue logic. A dedicated FPGA configuration path and user-accessible serial console remain important for production diagnostics. The 484-pin FBGA makes this solution attractive for compact, high-pin-count designs, but it also imposes tighter PCB assembly requirements than a leaded package. The verified data confirms tray packaging and surface mounting, so the assembly process, land pattern, and X-ray inspection criteria must follow the manufacturer package drawing.
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추천 제품 요약
엔지니어링 참조 데이터: LFE2-20E-5F484I — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | LFE2-20E-5FN484I | LFE2-20E-6F484I | LFE2-20E-4F484I | LFE2-20E-5F484C | LFE2-20E-8F484I |
|---|---|---|---|---|---|---|
| Brand | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor |
| Package | 484-pin FBGA | 484-BBGA - same | 484-pin FBGA - same | 484-pin FBGA - same | 484-pin FBGA - same | 484-pin FBGA - same |
| FPGA Family | LatticeECP2 | LatticeECP2 | LatticeECP2 | LatticeECP2 | LatticeECP2 | LatticeECP2 |
| Programmable Logic Cells | 21,000 cells | 21,000 cells | 21,000 cells | 21,000 cells | 21,000 cells | 21,000 cells |
| Core Supply Voltage | 1.2 V | 1.2 V | 1.2 V | 1.2 V | 1.2 V | 1.2 V |
| Speed Grade | -5 | -5 | -6 | -4 | -5 | -8 |
| Process Technology | 90 nm CMOS | 90 nm CMOS | 90 nm CMOS | 90 nm CMOS | 90 nm CMOS | 90 nm CMOS |
주요 차별점
- Closest documented same-footprint ordering alternative (vs LFE2-20E-5FN484I)
- Faster grade available on the same 484-pin architecture (vs LFE2-20E-4F484I)
- Lower-speed sourcing option with the same package and density (vs LFE2-20E-6F484I)
설계 노트
Treat the 484-pin FBGA land pattern as a controlled high-pin-count layout rather than a conventional perimeter package. Use the manufacturer's package drawing for every ball assignment, place configuration, clock, and high-speed nets first, and preserve continuous ground references under escape routes. Avoid long point-to-point connections between outer signal balls and the FPGA. Confirm the PCB stack-up, ball-pitch dimensions, and BGA assembly capability against the official package drawing before fabrication.
The verified 1.2 V core rating does not by itself define the complete power architecture. Decouple the core and any independently biased I/O banks according to the manufacturer data sheet, using multiple low-inductance capacitors placed close to the relevant supply and ground balls. Validate the power tree, voltage tolerances, startup sequence, configuration behavior, and worst-case current before selecting regulators. Do not infer I/O voltage limits or current capacity from the 1.2 V core specification.
A large BGA concentrates power delivery and thermal-via requirements. Use the manufacturer's recommended thermal-via array beneath the device, maintain uninterrupted ground planes, and evaluate junction temperature with the actual logic activity rather than an idle-device assumption. The supplied web data does not provide junction-temperature, thermal-resistance, or maximum-current figures, so these values must be obtained from the family data sheet before defining airflow or copper-pour limits.
Do not treat same-package ECP2 variants as automatic drop-ins without checking the ordering code. The -4, -5, -6, and -8 speed grades can change timing closure, while the C and I suffixes identify different temperature or qualification expectations. The LFE2-20E-5FN484I is documented as terminal- and package-consistent with the target, but the exact procurement conditions must still be confirmed. Also verify the configuration method and programming-file support for every proposed substitution.
규정 준수 정보
The supplied verified data does not contain explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements. The E suffix is an ordering identifier rather than verified environmental-compliance evidence.
