LFE5UM5G-85F-8BG381C

The LFE5UM5G-85F-8BG381C is a commercial-grade FPGA from the ECP5-5G family by Lattice Semiconductor, offering a balanced combination of logic density, embedded memory and I/O capacity in a compact BGA package. It is designed for applications that require programmable logic, moderate on-chip RAM and flexible I/O in a surface-mount 381-FBGA package.

Core capabilities include approximately 84,000 logic elements arranged across 21,000 CLBs, about 3.8 Mbits of embedded memory, and 205 I/O pins, enabling integration of custom digital functions, interface logic and memory buffering within a single device.

Key Features

• Core Logic  Approximately 84,000 logic elements organized into 21,000 CLBs for implementing complex combinational and sequential logic.
• Embedded Memory  Total on-chip RAM of 3,833,856 bits (approximately 3.8 Mbits) for local buffering, FIFOs and small data stores.
• I/O Capacity  205 I/O pins to support multiple parallel interfaces and board-level signal routing.
• Power  Core voltage supply range 1.045 V to 1.155 V, enabling defined low-voltage operation.
• Package & Mounting  381-FBGA package (supplier package: 381-CABGA, 17×17), surface-mount mounting for compact PCB integration.
• Operating Grade & Temperature  Commercial grade with an operating temperature range of 0 °C to 85 °C.
• Standards & Compliance  RoHS-compliant device suitable for standard commercial electronic assemblies.
• Family-Level Architecture  Part of the ECP5 and ECP5-5G family; family datasheet documents architecture elements such as flexible clocking (sysCLOCK PLL), DDR memory support, SERDES/PCS blocks, sysDSP slices, programmable I/O cells and device configuration options.

Typical Applications

• Commercial Embedded Systems  Implement custom control logic, interface bridging and protocol adaptation where programmable logic and on-chip memory reduce external components.
• Communications and Data I/O  Support for SERDES and DDR memory features at the family level enables implementation of high-speed serial interfaces and buffering in communications gear.
• Signal Processing and Acceleration  On-chip memory and sysDSP family features enable local data buffering and deterministic processing for DSP tasks.
• Prototyping and Custom FPGA Functions  Compact 381-FBGA packaging and substantial logic density make the device suitable for development platforms and board-level integration where space is limited.

Unique Advantages

• High Logic Density:  Approximately 84,000 logic elements provide the capacity to implement substantial custom logic without multiple devices.
• Significant Embedded Memory:  Around 3.8 Mbits of on-chip RAM reduces dependence on external memory for many buffering and storage needs.
• Generous I/O Count:  205 I/O enable flexible interfacing to peripherals, sensors and board-level signals.
• Compact, Surface-Mount Package:  381-FBGA (17×17 supplier package) allows high-density PCB layouts while providing robust mounting.
• Defined Commercial Operating Range:  0 °C to 85 °C rating aligns with standard commercial electronics deployment scenarios.
• Family-Level Feature Set:  Belongs to the ECP5-5G family with documented architecture options for clocking, SERDES, DDR support and DSP slices, simplifying design decisions across related devices.

Why Choose LFE5UM5G-85F-8BG381C?

The LFE5UM5G-85F-8BG381C balances logic capacity, embedded RAM and I/O in a compact 381-FBGA surface-mount package for commercial applications. As a member of the ECP5-5G family, it aligns with documented family-level features such as flexible clocking, DDR support, SERDES and DSP-oriented slices, making it a practical choice for designers who need programmable logic, local memory and robust I/O without moving to larger device classes.

This device is well suited to engineering teams building commercial embedded systems, communications interfaces and signal-processing modules that require a verified datasheet reference and predictable operating conditions tied to the published specifications.

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