LFE5UM5G in Lattice ECP5 Family
The LFE5UM5G family, part of Lattice Semiconductor's ECP5-5G series, represents a specialized class of low-power FPGAs designed for high-performance connectivity. Built on a 40nm process, these devices distinguish themselves by offering high-speed SERDES capabilities supporting up to 5Gbps. They provide a cost-optimized balance between logic density, power efficiency, and connectivity, making them ideal for bridging, protocol conversion, and hardware acceleration in space-constrained embedded systems where thermal management is a primary design concern.
Variants in This Sub-Family
Comparing specs that differ across variants.
| Part Number | I/O Pins | Contents | Platform | Utilized IC / Part | Total RAM Bits | Number of LABs/CLBs | Stock |
|---|---|---|---|---|---|---|---|
| LFE5UM5G-85F-8BG554I (Lattice Semiconductor Corporation) | — | — | — | — | — | — | 60 |
| LFE5UM5G-85F-EVN (Lattice Semiconductor Corporation) | — | Board(s), Cable(s) | 5G-5 | LFE5UM5G-85F | — | — | 39 |
| LFE5UM5G-45F-VERSA-EVN (Lattice Semiconductor Corporation) | — | Board(s), Cable(s).. | 5G-5 | LFE5UM5G-45F | — | — | — |
| LFE5UM5G-45F-8BG381C (Lattice Semiconductor) | 203 | — | — | — | 1990656 | 11000 | 138 |
| LFE5UM5G-85F-8BG381I (Lattice) | 205 | — | — | — | 3833856 | 21000 | 225 |
Variants within the LFE5UM5G sub-family primarily differ based on logic cell density (e.g., 45K vs. 85K LUTs) and package dimensions. Speed grades, such as the -8 rating, define the maximum frequency thresholds, while temperature ratings like 'C' (Commercial) and 'I' (Industrial) dictate operating environments. Developers can choose between the 381-ball or 554-ball BGA options to balance I/O count requirements against PCB routing complexity and size constraints.
