LFE5U-45F-8BG554I

The LFE5U-45F-8BG554I is an ECP5 family field-programmable gate array (FPGA) IC designed for industrial-grade embedded applications. It combines a mid-range logic fabric with embedded memory and extensive I/O to implement control, interface, and signal-processing functions in compact surface-mount packages.

Built on the ECP5 architecture, this device targets designs that require a balance of logic density, on-chip RAM, and high I/O count while operating across a wide industrial temperature range and a narrow core voltage window.

Key Features

• Logic Capacity — 44,000 logic elements provide ample programmable resources for glue logic, control state machines, and moderate-complexity custom logic blocks.
• Embedded Memory — Approximately 1.99 Mbits of on-chip RAM for buffering, FIFOs, and embedded data storage without external memory.
• I/O Density — 245 user I/O pins support large numbers of peripherals, parallel interfaces, and board-level signals from a single device.
• ECP5 Family Architecture — Device belongs to the ECP5 family with documented architecture elements such as sysDSP slices, programmable I/O cells, SERDES and DDR memory support, and a flexible clocking structure as described in the ECP5 family data sheet.
• Power and Supply — Core operating window of 1.045 V to 1.155 V enables precise power sequencing and predictable core power behavior.
• Package & Mounting — 554-FBGA (554-CABGA, 23 × 23 mm) surface-mount package for high-density board designs and automated assembly.
• Industrial Temperature Range — Specified to operate from −40 °C to 100 °C for deployment in industrial environments.
• RoHS Compliant — Manufactured in compliance with RoHS requirements.

Typical Applications

• Interface Bridging and Connectivity — Use the device’s high I/O count and ECP5 SERDES/PIO capabilities to implement protocol bridges, board-level interface conversions, and I/O aggregation.
• Embedded Control and System Glue — Implement deterministic control logic, peripherals, and state machines leveraging 44k logic elements and on-chip RAM for buffering and temporary storage.
• Signal Processing and Acceleration — Apply the ECP5 family’s DSP-oriented architecture elements and embedded memory to offload fixed-point signal-processing workloads and real-time data paths.

Unique Advantages

• Balanced Logic and Memory: Combines 44k logic elements with approximately 1.99 Mbits of embedded RAM to support both control logic and data buffering within a single device, reducing BOM complexity.
• High I/O Integration: 245 I/Os enable consolidation of multiple interfaces and peripherals, simplifying PCB routing and system partitioning.
• Industrial Robustness: Rated for −40 °C to 100 °C operation, suitable for industrial deployments where extended temperature capability is required.
• Compact, Assembly-Friendly Package: 554-FBGA surface-mount package supports high-density board designs and automated manufacturing processes.
• Standards-Conscious Manufacturing: RoHS compliance supports environmentally conscious product builds and regulatory needs.

Why Choose LFE5U-45F-8BG554I?

The LFE5U-45F-8BG554I strikes a practical balance between programmable logic capacity, on-chip memory, and I/O density for industrial applications. Its place in the ECP5 family provides access to a documented architecture that includes programmable I/O, DSP-oriented slices, SERDES and DDR memory support, and a flexible clocking structure—enabling compact implementations of interface, control, and processing functions.

This device is well suited to engineering teams seeking a field-programmable solution that reduces external components while delivering reliable operation across industrial temperature ranges and standard surface-mount assembly practices.

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