FPGA & adaptive SoC databook · online editionRev. 2026.10

iCE40UP3K vs iCE5LP4K

A comparison of the Lattice iCE40 UltraPlus iCE40UP3K and the Lattice iCE40 Ultra iCE5LP4K using the data from both vendors' selection guides.

Side-by-side specifications

iCE40UP3KiCE5LP4K
Vendor / familyLattice iCE40 UltraPlusLattice iCE40 Ultra
Logic (LUT4-equivalent)2,8003,520
LUTs as published2,800 LUT43,520 LUT4
Vendor logic figure— LC— LC
DSP4 16×16 MAC blocks4 16×16 MAC blocks
Block RAM0.1 Mb0.1 Mb
Large RAM1 Mb—
Max. user I/O2139
TransceiversNoneNone
Hard PCI ExpressNoneNone
Hard processorNoneNone
Process40 nm40 nm
Configuration memoryNVCMNVCM
Packages13
Design toolLattice RadiantLattice iCEcube2

Highlighted values are higher. Logic is compared in LUT4 equivalents; see how FPGA vendors count logic.

Key differences

The iCE5LP4K has about 26% more logic capacity (3.5K vs 2.8K LUT4 equivalents).

The iCE40UP3K has more on-chip memory (1.1 Mb vs 0.1 Mb).

The iCE40UP3K is designed with Lattice Radiant and the iCE5LP4K with Lattice iCEcube2.

Full specifications

See the complete spec sheets with packages and grades: iCE40UP3K (iCE40 UltraPlus) and iCE5LP4K (iCE40 Ultra).