LFE5UM-85F-8BG381C

The LFE5UM-85F-8BG381C is a member of the Lattice ECP5 FPGA family, delivering a mid-range programmable logic fabric for embedded and system-level designs. It combines a large pool of logic elements with embedded memory and a rich set of programmable I/O and SERDES/PHY resources to address connectivity, memory-interface, and custom-acceleration requirements.

This commercial-grade device is offered in a 381-ball FBGA package with surface-mount mounting and operates across a 1.045–1.155 V supply range and a 0 °C to 85 °C ambient temperature window.

Key Features

• Logic Capacity  Approximately 84,000 logic elements for implementing custom digital functions and control logic.
• Embedded Memory  Approximately 3.8 Mbits of on-chip RAM (3,833,856 total RAM bits) for buffering, FIFOs, and local storage.
• I/O Count  205 I/O pins to support multiple parallel and serial interfaces.
• SERDES and PHY Blocks  On-chip SERDES and physical coding sublayer elements are included in the ECP5 family architecture for serial connectivity and high-speed link implementations.
• Memory Interface Capability  Architectural support for DDR memory interfaces, including DQS grouping and calibrated delay control as described in the ECP5 family documentation.
• DSP and Processing Blocks  sysDSP slice architecture in the ECP5 family provides dedicated resources for arithmetic and signal-processing tasks.
• Clocking and PLL Resources  Integrated sysCLOCK PLL and clock-distribution network provide flexible clock management for synchronous designs.
• Package and Mounting  381-FBGA package (supplier device package: 381-CABGA, 17×17) with surface-mount mounting for compact board integration.
• Power and Temperature  Nominal supply range 1.045 V to 1.155 V; commercial operating temperature 0 °C to 85 °C.
• Compliance  RoHS compliant.

Typical Applications

• High-speed serial links and connectivity  Leverage the device’s SERDES and PCS blocks for implementing serialized interfaces and link-layer logic.
• Memory interface and buffering  Use on-chip sysMEM blocks and DDR memory support for frame buffering, packet buffering, and memory controller logic.
• Custom DSP and signal processing  Deploy sysDSP slices and the available logic elements to accelerate arithmetic and filtering functions in hardware.
• Interface bridging and protocol conversion  Large I/O count and programmable I/O cells make the device suitable for bridging multiple parallel and serial buses and implementing protocol adapters.

Unique Advantages

• Substantial logic and memory in a compact package:  About 84,000 logic elements and ~3.8 Mbits of embedded RAM provide a balance of capacity for complex control and data-path designs while fitting a 381-FBGA footprint.
• Integrated SERDES and DDR features:  On-chip SERDES, PCS, and DDR-supporting blocks reduce external component count for memory and high-speed link implementations.
• Flexible clock and DSP resources:  sysCLOCK PLLs and sysDSP slices enable deterministic timing architectures and on-chip acceleration of arithmetic workloads.
• Design-ready I/O density:  205 I/O pins allow multiple peripheral interfaces and board-level connectivity without immediate need for external expanders.
• Commercial-grade reliability:  Commercial operating range (0 °C to 85 °C) and RoHS compliance meet common electronics manufacturing and deployment requirements.

Why Choose LFE5UM-85F-8BG381C?

The LFE5UM-85F-8BG381C positions itself as a versatile mid-range FPGA option within the Lattice ECP5 family, blending sizable logic capacity, practical embedded memory, and integrated connectivity blocks in a compact 381-FBGA package. It is suited for designs that require on-chip buffering, serial links, and custom hardware acceleration while maintaining a commercial temperature profile.

Engineers targeting system-level integration and interface consolidation will find the device’s combination of logic elements, I/O density, DDR and SERDES-related features useful for reducing board-level complexity and streamlining BOM. As part of the ECP5 family from Lattice Semiconductor, this device aligns with a documented architectural model that includes clocking, memory, and DSP resources to support a broad range of embedded applications.

If you would like pricing or availability, request a quote or submit an inquiry to receive a formal quote and lead-time information.