LFE5UM-45F-6BG381C

IC FPGA 203 I/O 381CABGA
Part Description

ECP5 Field Programmable Gate Array (FPGA) IC 203 1990656 44000 381-FBGA

Quantity 1,854 Available (as of October 8, 2026)
Product CategoryField Programmable Gate Array (FPGA)
ManufacturerLattice Semiconductor Corporation
Manufacturing StatusActive
Manufacturer Standard Lead Time20 Weeks
Datasheet

Specifications & Environmental

Device Package381-CABGA (17x17)GradeCommercialOperating Temperature0°C – 85°C
Package / Case381-FBGANumber of I/O203Voltage1.045 V - 1.155 V
Mounting MethodSurface MountRoHS ComplianceROHS3 CompliantREACH ComplianceREACH Unaffected
Moisture Sensitivity Level3 (168 Hours)Number of LABs/CLBs11000Number of Logic Elements/Cells44000
Number of GatesN/AECCN3A991DHTS Code8542.39.0001
QualificationN/ATotal RAM Bits1990656

Overview of LFE5UM-45F-6BG381C – ECP5 FPGA, 44,000 Logic Elements, 203 I/Os, 381-FBGA

The LFE5UM-45F-6BG381C is a field programmable gate array (FPGA) from the Lattice ECP5 family offering 44,000 logic elements and approximately 1.99 Mbits of on-chip RAM. It is a commercial-grade, surface-mount device in a 381-FBGA (381-CABGA, 17×17) package that targets designs requiring reconfigurable digital logic, flexible I/O and on-chip memory.

Architecturally, the ECP5 family datasheet highlights features such as programmable I/O cells, DDR memory support, SERDES, sysDSP slices, PLL-based clocking and device configuration options, providing a platform suitable for consolidating digital functions and implementing custom interfaces within a compact footprint.

Key Features

  • Logic Density  44,000 logic elements for implementing moderate-density FPGA designs and custom digital logic.
  • Embedded Memory  Approximately 1.99 Mbits of total on-chip RAM to support buffering, frame storage and local data processing.
  • I/O Capacity  203 user I/Os to accommodate multiple parallel interfaces and mixed-signal connections at the board level.
  • On-chip Architecture (ECP5 family)  Includes programmable I/O cells, clocking (PLLs and clock distribution), sysDSP slices, DDR memory support and SERDES capability as described in the ECP5 family datasheet.
  • Power  Nominal core voltage range of 1.045 V to 1.155 V for core power planning and supply design.
  • Package & Mounting  381-FBGA package (supplier device package: 381-CABGA, 17×17) with surface-mount mounting type for compact board integration.
  • Temperature & Grade  Commercial grade operation from 0 °C to 85 °C for typical commercial and industrial-adjacent applications.
  • Environmental Compliance  RoHS compliant for lead-free production and regulatory alignment.

Typical Applications

  • Reconfigurable Logic  Implement custom digital functions and state machines where in-field programmability is required.
  • Interface Bridging  Consolidate multiple parallel and serial interfaces using the device’s 203 I/Os and the family’s SERDES and programmable I/O features.
  • On-board Data Processing  Use embedded memory and sysDSP slices for local buffering, preprocessing and algorithm acceleration within a compact FPGA footprint.

Unique Advantages

  • High Logic Capacity:  44,000 logic elements enable substantial logic implementation without moving to larger, more expensive families.
  • Generous I/O Count:  203 I/Os support complex multi-interface boards and flexible pinout assignments.
  • On-chip Memory Resource:  Approximately 1.99 Mbits of embedded RAM reduces external memory dependency for many control and buffering tasks.
  • Compact Packaging:  381-FBGA (17×17) package offers a dense, board-friendly solution for space-constrained designs.
  • Commercial Grade Suitability:  Rated for 0 °C to 85 °C operation, aligning with many commercial product and prototype requirements.
  • Regulatory Alignment:  RoHS compliance supports lead-free manufacturing workflows.

Why Choose LFE5UM-45F-6BG381C?

The LFE5UM-45F-6BG381C delivers a balanced combination of logic density, embedded memory and I/O resources in a compact 381-FBGA package, drawing on the ECP5 family architecture features documented in the datasheet. It is suited to engineers who need a reprogrammable platform capable of consolidating interfaces, performing on-chip data processing and implementing custom logic without migrating to larger FPGA families.

Backed by the ECP5 family’s architecture—programmable I/O, DDR support, SERDES, sysDSP and robust clocking options—this device provides a scalable building block for production designs and prototypes where commercial-grade temperature range, RoHS compliance and controlled core voltage are required.

Request a quote or submit an inquiry to check pricing and availability for the LFE5UM-45F-6BG381C.

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