LFE5U-12F-8BG381C

The LFE5U-12F-8BG381C is an ECP5 family field programmable gate array from Lattice Semiconductor designed for commercial-grade applications. It delivers reconfigurable logic with 12,000 logic elements and approximately 0.59 Mbits of embedded memory, making it suitable for mid-density designs that require flexible I/O and on-chip memory resources.

Packaged in a 381‑FBGA (supplier package: 381‑CABGA 17×17) with 197 I/O pins and a narrow supply voltage range (1.045 V to 1.155 V), this device targets applications that need configurable logic, moderate embedded RAM, and a broad set of architectural features defined by the ECP5 family.

Key Features

• Logic Capacity — 12,000 logic elements to implement mid-density programmable logic and custom glue logic.
• Embedded Memory — Approximately 0.59 Mbits (589,824 bits) of on-chip RAM for buffering, FIFOs, or small data stores.
• I/O Density — 197 available I/O pins delivered in a 381‑FBGA package for flexible signal interfacing and board routing.
• Clocking and Timing — ECP5 family architecture includes PLL and comprehensive clock distribution and divider structures (as described in the family datasheet) to support complex timing domains.
• DSP and Serial Support — Family-level features document sysDSP slices and SERDES/Physical Coding Sublayer capability for signal-processing and high-speed serial functions.
• Memory Interfaces and DDR Support — ECP5 family documentation describes DDR memory support, DQS grouping and delay calibration blocks for interfacing external DDR memories.
• Programmable I/O Cells — Dedicated programmable I/O cells and on-chip I/O buffer banks to accommodate multiple signaling standards and programmable termination options (family-level feature).
• Device Configuration & Reliability — Family features include device configuration options, on-chip oscillator and IEEE 1149.1-compliant boundary scan testability for production test and configuration management.
• Commercial Grade — Rated for 0 °C to 85 °C operating temperature for commercial applications.
• Surface Mount Package — 381‑FBGA surface-mount package (supplier package 381‑CABGA, 17×17) for compact board implementations.
• RoHS Compliant — Conforms to RoHS environmental requirements.

Typical Applications

• High-speed serial interfaces — Use the family SERDES and PCS capabilities for implementing serial links and protocol bridging in communications and data transport modules.
• DDR memory controllers — Implement DDR interface logic and memory controllers leveraging the family’s DDR support, DQS grouping and calibration features.
• DSP and signal processing — Leverage sysDSP slice architecture for mid-range signal-processing tasks, filtering and fixed-point arithmetic pipelines.
• General-purpose I/O aggregation — Use the 197 I/Os and programmable I/O cells for sensor aggregation, protocol conversion, or custom peripheral interfaces.

Unique Advantages

• Mid-density reconfigurable logic: 12,000 logic elements provide a balance between capacity and cost for systems that need custom logic without high-end FPGA complexity.
• Embedded memory on-chip: Approximately 0.59 Mbits of RAM reduces reliance on external memory for small buffers and control-state storage, simplifying designs.
• High I/O count in a compact BGA: 197 I/Os in a 381‑FBGA (17×17) package enables dense I/O routing while keeping board footprint moderate.
• Family-level serial and DDR features: Documented SERDES, DDR support and calibrated DQS blocks enable integration of serial links and memory interfaces without speculative claims about specific part capabilities.
• Commercial operating range: Rated for 0 °C to 85 °C to match commercial-product environmental requirements.
• Standards and testability: Family documentation includes IEEE 1149.1-compliant boundary scan support to help with production testing and board-level diagnostics.

Why Choose LFE5U-12F-8BG381C?

The LFE5U-12F-8BG381C positions itself as a commercially graded, mid-density FPGA option within the ECP5 family, delivering a compact package with significant I/O flexibility and on-chip memory. Its combination of 12,000 logic elements, nearly 0.59 Mbits of embedded RAM, and 197 I/Os makes it a practical choice for designs that require reconfigurable logic, memory buffering and versatile interfacing without stepping up to larger FPGA classes.

Engineers building communications peripherals, DDR-interfaced controllers, DSP-accelerated modules or I/O-bridging functions can leverage the documented ECP5 family features—programmable I/O cells, clocking resources, SERDES and DDR support—while benefiting from RoHS compliance and a commercial temperature grade for standard embedded applications.

Request a quote or submit an inquiry to obtain pricing and availability for the LFE5U-12F-8BG381C.