LFE5U-45F-8BG256C

The LFE5U-45F-8BG256C is an ECP5 family FPGA IC in a 256-LFBGA (supplier package 256-CABGA, 14×14) surface-mount package. It provides a programmable logic platform with 44,000 logic elements and approximately 1.99 Mbits of embedded memory suitable for a wide range of commercial embedded designs.

With 197 I/O pins, dedicated architecture elements described in the ECP5 datasheet (clocking, programmable I/O, SERDES and memory blocks), and a tight core supply range, this device targets designs that require moderate logic density, flexible I/O and compact packaging.

Key Features

• Logic Capacity  44,000 logic elements (logic cells) for implementing custom digital functions and control logic.
• Embedded Memory  Approximately 1.99 Mbits of on-chip RAM for data buffering, frame/packet storage and state retention.
• I/O Resources  197 user I/O pins to support broad peripheral and interface connectivity without external expander logic.
• Package & Mounting  256-LFBGA package (supplier: 256-CABGA, 14×14) in a surface-mount form factor for compact board layouts.
• Power Supply  Core supply operating range specified from 1.045 V to 1.155 V, enabling controlled power sequencing and integration.
• Operating Range & Grade  Commercial grade device rated for 0 °C to 85 °C operation.
• RoHS Compliant  Meets RoHS requirements for lead-free assembly and environmental compliance.
• ECP5 Family Architecture  Built on the ECP5 family with documented features such as flexible clocking, programmable I/O cells, memory blocks and SERDES/PHY elements described in the family datasheet.

Typical Applications

• Memory interface controllers  Use the device's on-chip memory and DDR-related blocks described in the ECP5 datasheet for buffering and timing-critical memory interfaces.
• High-density I/O bridging  197 I/O pins enable protocol translation, bus bridging and mixed-signal interface aggregation in compact board designs.
• Custom logic and signal processing  44,000 logic elements combined with sysDSP and DSP-oriented blocks in the ECP5 family support bespoke control and real-time processing tasks.
• Compact embedded systems  The 256-LFBGA package and surface-mount form factor suit space-constrained commercial products needing programmable logic integration.

Unique Advantages

• Balanced integration: Combines substantial logic capacity with nearly 2 Mbits of embedded memory to reduce external component count.
• High I/O density: 197 available I/O pins allow direct connection to multiple peripherals and interfaces without additional expanders.
• Compact packaging: 256-LFBGA (256-CABGA, 14×14) delivers a small footprint for board-level space savings.
• Controlled power envelope: Narrow core supply window (1.045 V–1.155 V) simplifies power rail design and sequencing requirements.
• Design documentation: Supported by the ECP5 family data sheet detailing clocking, I/O, memory and SERDES/PHY architecture for robust design planning.
• RoHS compliance: Ready for lead-free assembly and environmentally regulated manufacturing processes.

Why Choose LFE5U-45F-8BG256C?

The LFE5U-45F-8BG256C places a significant logic and memory resource set into a compact, surface-mount 256-LFBGA package, making it well suited for commercial embedded systems that require flexible I/O, on-chip memory and programmable logic. Its documented ECP5 family architecture—covering clocking, programmable I/O and SERDES/memory blocks—helps engineers map system functions directly into the device.

This FPGA is appropriate for teams designing scalable, board-level solutions that benefit from integrated logic, substantial I/O, and RoHS compatibility. Refer to the ECP5 family datasheet for architecture and integration guidance when evaluating the part for your specific design.

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