LFE3-17EA vs LFE5UM-25
A comparison of the Lattice LatticeECP3 LFE3-17EA and the Lattice ECP5 LFE5UM-25 using the data from both vendors' selection guides.
Side-by-side specifications
| LFE3-17EA | LFE5UM-25 | |
|---|---|---|
| Vendor / family | Lattice LatticeECP3 | Lattice ECP5 |
| LUTs as published | 17,000 LUT4 | 24,000 LUT4 |
| LUT type | 4-input look-up table | 4-input look-up table |
| LUT4 equivalent (approx.) | ≈17,000 | ≈24,000 |
| CoreScore (SERV cores) | — | — |
| Vendor logic figure | — | — |
| DSP | 24 18×18 multipliers | 28 18×18 multipliers |
| Block RAM | 0.7 Mb | 1 Mb |
| Large RAM | — | — |
| Max. user I/O | 222 | 197 |
| Transceivers | 4 × SERDES 3.2 Gb/s | 2 × SERDES 3.2 Gb/s |
| Hard PCI Express | None | None |
| Hard processor | None | None |
| Process | 65 nm | 40 nm |
| Configuration memory | SRAM | SRAM |
| Packages | 3 | 2 |
| Design tool | Lattice Diamond | Lattice Diamond |
Highlighted values are higher. LUT counts are shown as published; the LUT4 equivalent is an approximation to compare different LUT types, see how FPGA vendors count logic. Add up to two more devices to this comparison.
Key differences
The LFE5UM-25 has about 41% more logic capacity (24K vs 17K LUT4 equivalents).
For arithmetic, the LFE5UM-25 has 28 18×18 multipliers against 24 18×18 multipliers on the LFE3-17EA.
The LFE5UM-25 has more on-chip memory (1 Mb vs 0.7 Mb).
The LFE3-17EA is designed with Lattice Diamond and the LFE5UM-25 with Lattice Diamond; open source: F4PGA or Yosys + nextpnr-ecp5 with Project Trellis.
Full specifications
See the complete spec sheets with packages and grades: LFE3-17EA (LatticeECP3) and LFE5UM-25 (ECP5).