LFE5UM-45F-8BG554C

The LFE5UM-45F-8BG554C is a field-programmable gate array (FPGA) from the Lattice ECP5 family, delivering reconfigurable logic, embedded memory and a high-density I/O count in a compact 554‑FBGA package. Its combination of 44,000 logic elements, approximately 1.99 Mbits of on-chip RAM and 245 I/O pins makes it suited for mid-density designs requiring flexible I/O, memory and interface capabilities.

Built to the ECP5 family architecture, the device includes system-level features such as programmable I/O, clocking and SERDES/DDR support described in the ECP5 data sheet, enabling design reuse across applications that need deterministic clocking and high-speed serial or parallel interfaces.

Key Features

• Programmable Logic — 44,000 logic elements to implement custom digital logic and state machines.
• Embedded Memory — Approximately 1.99 Mbits of on-chip RAM for buffering, FIFOs and on-chip storage.
• I/O Density — 245 programmable I/O pins to support multiple parallel interfaces and board-level connectivity.
• Package & Mounting — 554‑FBGA (554‑CABGA, 23 × 23) surface-mount package for compact board designs.
• Supply Voltage — Core supply specified from 1.045 V to 1.155 V, supporting defined power-rail requirements.
• Operating Range — Commercial grade device rated for 0 °C to 85 °C ambient operation.
• Family Architecture Features — ECP5 family capabilities documented in the data sheet include programmable I/O cells, comprehensive clocking (sysCLOCK PLL and clock distribution), DDR memory support, SERDES and PCS blocks, on-chip oscillator and IEEE 1149.1 boundary-scan testability.
• RoHS Compliant — Conforms to RoHS environmental requirements.

Typical Applications

• High‑density I/O and Interface Bridging — Use the 245 I/Os and programmable I/O cells to implement protocol bridging, parallel interfaces and board-level glue logic.
• Memory Interface and Buffering — Leverage the on-chip RAM and DDR memory support for data buffering, packet staging and memory-mapped logic.
• High‑speed Serial Systems — SERDES and PCS blocks in the ECP5 family enable deployment in designs requiring serial links and serialized client interfaces.
• Embedded Logic and Control — 44,000 logic elements provide capacity for custom control, signal processing pipelines and glue logic in embedded systems.

Unique Advantages

• Balanced Logic and Memory Capacity: 44,000 logic elements combined with approximately 1.99 Mbits of on-chip RAM supports mid-density designs that need both compute and local storage.
• High I/O Count: 245 I/O pins enable complex board-level interfacing without external multiplexers, simplifying PCB routing and BOM.
• Compact, Surface‑Mount Package: 554‑FBGA (23 × 23) provides a high pin‑count footprint in a space-efficient form factor for dense PCBs.
• System-Level Feature Set: ECP5 family capabilities such as programmable I/O, sysCLOCK PLL, DDR support and SERDES/PCS blocks allow integrated implementation of timing, memory and serial interface functions.
• Commercial Grade Suitability: Rated for 0 °C to 85 °C operation, appropriate for a wide range of commercial embedded applications.
• Regulatory Compliance: RoHS compliance supports environmentally conscious assembly and distribution.

Why Choose LFE5UM-45F-8BG554C?

The LFE5UM-45F-8BG554C positions itself as a mid-density ECP5 FPGA option that combines substantial programmable logic, embedded memory and a large I/O footprint in a compact 554‑FBGA package. Its documented ECP5 family features—programmable I/O, advanced clocking, DDR and SERDES capabilities—make it suitable for designs that require integrated interface logic, local buffering and deterministic clocking without moving to larger, higher-cost devices.

This device is well suited to engineering teams seeking a commercially graded, RoHS‑compliant FPGA with clear electrical and thermal operating ranges and a feature set aligned to interface-heavy, embedded control and serial/parallel bridging applications. Reference to the ECP5 family data sheet provides additional architectural detail for system-level integration and verification.

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