FPGA & adaptive SoC databook · online editionRev. 2026.10

GW1AN-1S vs iCE40UL1K

A comparison of the Gowin Arora GW1AN-1S and the Lattice iCE40 Ultra iCE40UL1K using the data from both vendors' selection guides.

Side-by-side specifications

GW1AN-1SiCE40UL1K
Vendor / familyGowin AroraLattice iCE40 Ultra
Logic (LUT4-equivalent)1,1521,248
LUTs as published1,152 LUT41,248 LUT4
Vendor logic figure— LC— LC
DSP— 18×18 multipliers— 16×16 MAC blocks
Block RAM0.1 Mb0.1 Mb
Large RAM——
Max. user I/O4426
TransceiversNoneNone
Hard PCI ExpressNoneNone
Hard processorNoneNone
Process55 nm40 nm
Configuration memoryEmbedded flashNVCM
Packages22
Design toolGowin EDALattice iCEcube2

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

Key differences

The iCE40UL1K has about 8% more logic capacity (1.2K vs 1.2K LUT4 equivalents).

The GW1AN-1S has more on-chip memory (0.1 Mb vs 0.1 Mb).

Configuration memory: embedded flash on the GW1AN-1S, nvcm on the iCE40UL1K.

The GW1AN-1S is designed with Gowin EDA and the iCE40UL1K with Lattice iCEcube2.

Full specifications

See the complete spec sheets with packages and grades: GW1AN-1S (Arora) and iCE40UL1K (iCE40 Ultra).