LFE5U-85F-6BG381I

The LFE5U-85F-6BG381I is an ECP5 family FPGA from Lattice Semiconductor Corporation. It provides a programmable logic fabric with a high logic element count and on-chip memory, delivered in a compact 381-FBGA package.

Designed for industrial-grade systems, this device targets applications that require flexible digital logic, substantial embedded RAM, and a broad I/O complement within a surface-mount, RoHS-compliant footprint.

Key Features

• Logic Density  Approximately 84,000 logic elements for implementing complex combinational and sequential logic.
• Embedded Memory  Approximately 3.83 Mbits of on-chip RAM to support FIFOs, buffers, and small data storage needs.
• I/O Resources  205 user I/Os to interface with external peripherals, memory, and digital sensors.
• Package & Mounting  381-FBGA package (supplier package: 381-CABGA, 17×17) with surface-mount mounting for compact board integration.
• Industrial Operating Range  Rated for operation from -40 °C to 100 °C to meet industrial temperature requirements.
• Power Supply  Core voltage specified from 1.045 V to 1.155 V for precise power design and sequencing.
• Standards Compliance  RoHS-compliant manufacturing to support environmental and regulatory requirements.
• ECP5 Family Architecture  Built on the ECP5 family platform (see manufacturer datasheet for architecture-level details such as routing, clocking, memory blocks, and SERDES support).

Typical Applications

• Industrial Control  Programmable logic for motor control, automation interfaces, and industrial I/O where extended temperature range and robust I/O counts are needed.
• High‑Speed Interfaces  Implementation of custom interface logic and memory controllers leveraging the device’s I/O capacity and on‑chip RAM.
• Embedded Systems  Custom accelerators, protocol bridging, and glue logic in compact, surface-mount designs.
• Communications and Networking Equipment  Programmable dataplane functions and interface adaptation using the ECP5 family architecture.

Unique Advantages

• High Logic Capacity: Approximately 84,000 logic elements enable dense logic implementation without external CPLDs or discrete glue logic.
• Substantial On‑Chip Memory: Approximately 3.83 Mbits of embedded RAM reduce external memory dependencies for buffering and small data storage.
• Generous I/O Count: 205 I/Os provide flexible connectivity for peripherals, memory interfaces, and sensors.
• Industrial Temperature Rating: -40 °C to 100 °C operation supports deployment in demanding industrial environments.
• Compact, Surface‑Mount Package: 381-FBGA (381-CABGA 17×17) combines high pin count with a small board footprint for dense system designs.
• RoHS Compliant: Supports environmentally conscious manufacturing and regulatory requirements.

Why Choose LFE5U-85F-6BG381I?

The LFE5U-85F-6BG381I positions itself as a flexible, industrial-grade FPGA choice within the ECP5 family, delivering a balance of logic density, embedded memory, and I/O capacity in a compact FBGA package. Its specified core voltage range and extended operating temperature make it suitable for systems that demand stable, long-term operation in industrial environments.

This device is appropriate for designers building embedded controllers, custom interface logic, and communications functions who require a programmable, RoHS-compliant FPGA with significant on-chip resources and a high pin count in a surface-mount form factor.

Request a quote or submit an inquiry to receive pricing and availability information for the LFE5U-85F-6BG381I and support for your design requirements.