LFE5U-45F-7BG256C

The LFE5U-45F-7BG256C is an ECP5 family Field Programmable Gate Array (FPGA) in a 256-LFBGA package. It integrates up to 44,000 logic elements and approximately 1.99 Mbits of embedded RAM together with up to 197 user I/Os to address mid-density programmable logic needs.

With a documented ECP5 architecture that includes flexible clocking, DDR memory support, SERDES and programmable I/O capabilities, this commercial-grade device is suited to designs that require significant logic capacity, on-chip memory, and a large I/O count within a compact surface-mount package.

Key Features

• Core Logic 44,000 logic elements (cells) provide mid-range programmable logic capacity for glue logic, protocol bridging, and control functions.
• Embedded Memory Approximately 1.99 Mbits of on-chip RAM to support buffers, FIFOs, and small data stores without external memory.
• I/O Density Up to 197 user I/Os to support parallel interfaces, multiple peripherals, and high pin-count designs.
• Package and Mounting 256-LFBGA (supplier package 256-CABGA, 14×14) in a surface-mount form factor for space-constrained PCBs.
• Power and Operating Range Core supply documented from 1.045 V to 1.155 V and commercial operating temperature range of 0 °C to 85 °C.
• ECP5 Family Architecture Family-level datasheet details include flexible clocking structures, DDR memory support, SERDES/PCS features, programmable I/O cells, boundary-scan testability, and an on-chip oscillator.
• Regulatory RoHS compliant.

Typical Applications

• Embedded Control Implements control logic, protocol conversion, and custom state machines using the device’s 44,000 logic elements and embedded RAM.
• I/O-Intensive Systems Supports designs that require many parallel or multiplexed interfaces, leveraging up to 197 user I/Os in a compact package.
• Memory-Centric Functions Uses approximately 1.99 Mbits of on-chip RAM for buffering, FIFOs, and small-data buffering in streaming or data-acquisition applications.
• High-Speed Interfaces and SERDES Employs the ECP5 family’s SERDES and DDR support (as described in the family datasheet) for serial links and memory-interface tasks.

Unique Advantages

• Substantial Logic Capacity: 44,000 logic elements enable complex logic implementations without immediately moving to larger device classes.
• Embedded Memory Onboard: Approximately 1.99 Mbits of RAM reduces dependence on external memory for many buffer and FIFO requirements.
• High I/O Count in Small Package: 197 user I/Os in a 256-LFBGA package provide a balance of connectivity and compact PCB footprint.
• Commercial Temperature Rating: Specified 0 °C to 85 °C operation for mainstream embedded and industrial-adjacent applications.
• ECP5 Architecture Feature Set: Family-level features such as flexible clocking, DDR and SERDES support, programmable I/O, and on-chip oscillator expand system design options.
• RoHS Compliant: Meets common environmental and manufacturing requirements for lead-free assembly.

Why Choose LFE5U-45F-7BG256C?

The LFE5U-45F-7BG256C positions itself as a mid-density, I/O-rich FPGA option within the ECP5 family, combining 44,000 logic elements and approximately 1.99 Mbits of embedded RAM in a 256-LFBGA surface-mount package. Its documented family architecture—covering clocking, DDR support, SERDES, and programmable I/O—gives designers a clear technical foundation for implementing protocol bridging, buffering, and control functions while keeping PCB footprint and BOM complexity under control.

This device is well suited for engineers and product teams that need scalable, on-chip logic and memory resources with a high I/O count and standard commercial temperature operation. The ECP5 family datasheet provides detailed architecture and implementation guidance to support design verification and deployment.

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