LFE5UM-25
LatticeECP5The LFE5UM-25 is an ECP5 FPGA from Lattice, built on a 40 nm process. It provides 24,000 LUT4 look-up tables, 1 Mb of block RAM and 28 18×18 multipliers. It offers up to 197 user I/O pins and 2 SERDES transceivers at up to 3.2 Gb/s. It is available in 2 packages, from the csfBGA285 (10 × 10 mm) to the caBGA381 (17 × 17 mm). Designs are built with Lattice Diamond.
Specifications
| Vendor | Lattice |
|---|---|
| Family | ECP5 |
| Series | ECP5 |
| Process | 40 nm |
| Configuration memory | SRAM |
| LUT4-equivalent capacity | 24,000 |
| Look-up tables (LUT4) | 24,000 |
| Distributed RAM | 194 Kb |
| Block RAM | 1 Mb (56 × 18 Kb) |
| DSP (18×18 multiplier) | 28 |
| Max. user I/O | 197 |
|---|---|
| SERDES transceivers | 2 × 3.2 Gb/s |
| PCI Express | None |
| Analog / monitor | None |
| Design tool | Lattice Diamond |
Packages
| Package | Size (mm) | Pitch (mm) | User I/O | Transceivers |
|---|---|---|---|---|
| csfBGA285 | 10 × 10 | 0.5 | 118 | 2 |
| caBGA381 | 17 × 17 | 0.8 | 197 | 2 |
Package names are shown as in the selection guide; the full ordering code adds speed grade and temperature (see the data sheet).
Alternatives to the LFE5UM-25
Closest matches in other families and vendors by logic, DSP, memory, I/O and transceivers. Check pin compatibility and tools before migrating.
| Device | LUT4-eq. | Vendor logic | DSP | Block RAM | Max I/O | Transceivers | PCIe |
|---|---|---|---|---|---|---|---|
| EP4CGX22Altera Cyclone IV | 21K 21K LUT4 | 21K LE | 40 | 0.7 Mb | 150 | 4 XCVR 3.125 Gb/s | Gen2 |
| LFD2NX-28Lattice Certus-NX | 23.3K 23.3K LUT4 | 28K LC | 40 | 1 Mb | 191 | 1 SERDES 5 Gb/s | Gen2 |
| GW5A-25Gowin Arora V | 23K 23K LUT4 | — | 28 | 1 Mb | 239 | — | — |
| GW5AR-25Gowin Arora V | 23K 23K LUT4 | — | 28 | 1 Mb | 239 | — | — |
| GW3AR-20Gowin Arora III | 23K 23K LUT4 | — | 26 | 1.1 Mb | 238 | — | — |
| XC7A15TAMD Artix-7 | 16.6K 10.4K LUT6 | 16.6K LC | 45 | 0.9 Mb | 250 | 4 GTP 6.6 Gb/s | Gen2 |
Compare side by side: LFE5UM-25 vs EP4CGX22, LFE5UM-25 vs LFD2NX-28, LFE5UM-25 vs GW5A-25.
LFE5UM-25 quick facts
How many LUTs does the LFE5UM-25 have?
The LFE5UM-25 has 24,000 LUT4 look-up tables, about 24,000 LUT4 equivalents.
How many DSP blocks does the LFE5UM-25 have?
The LFE5UM-25 has 28 18×18 multipliers and 1 Mb of block RAM.
Does the LFE5UM-25 have transceivers?
Yes, 2 SERDES transceivers at up to 3.2 Gb/s.
What are the alternatives to the LFE5UM-25?
Devices of similar size in other families include EP4CGX22 (Altera Cyclone IV), LFD2NX-28 (Lattice Certus-NX), GW5A-25 (Gowin Arora V).
Which software is used to design with the LFE5UM-25?
Designs for the LFE5UM-25 are built with Lattice Diamond.
Other ECP5 devices
| Device | LUT4-eq. | Vendor logic | DSP | Block RAM | Max I/O | Transceivers | PCIe |
|---|---|---|---|---|---|---|---|
| LFE5U-12 | 12K 12K LUT4 | — | 28 | 0.6 Mb | 197 | — | — |
| LFE5UM-25 | 24K 24K LUT4 | — | 28 | 1 Mb | 197 | 2 SERDES 3.2 Gb/s | — |
| LFE5UM5G-25 | 24K 24K LUT4 | — | 28 | 1 Mb | 197 | 2 SERDES 5 Gb/s | — |
| LFE5U-25 | 24K 24K LUT4 | — | 28 | 1 Mb | 197 | — | — |
| LFE5UM-45 | 44K 44K LUT4 | — | 72 | 1.9 Mb | 245 | 4 SERDES 3.2 Gb/s | — |
| LFE5UM5G-45 | 44K 44K LUT4 | — | 72 | 1.9 Mb | 245 | 4 SERDES 5 Gb/s | — |
| LFE5U-45 | 44K 44K LUT4 | — | 72 | 1.9 Mb | 245 | — | — |
| LFE5UM-85 | 84K 84K LUT4 | — | 156 | 3.7 Mb | 365 | 4 SERDES 3.2 Gb/s | — |
| LFE5UM5G-85 | 84K 84K LUT4 | — | 156 | 3.7 Mb | 365 | 4 SERDES 5 Gb/s | — |
| LFE5U-85 | 84K 84K LUT4 | — | 156 | 3.7 Mb | 365 | — | — |
Source: Lattice ECP5 product page, Family Table, retrieved 2026-10-24. Data is extracted automatically from the vendor's selection guide; verify critical values in the device data sheet.