FPGA & adaptive SoC databook · online editionRev. 2026.10

LCMXO2-640U vs LCMXO640E

A comparison of the Lattice MachXO2 LCMXO2-640U and the Lattice MachXO LCMXO640E using the data from both vendors' selection guides.

Side-by-side specifications

LCMXO2-640ULCMXO640E
Vendor / familyLattice MachXO2Lattice MachXO
LUTs as published640 LUT4640 LUT4
LUT type4-input look-up table4-input look-up table
LUT4 equivalent (approx.)≈640≈640
CoreScore (SERV cores)——
Vendor logic figure——
DSP— 18×18 multipliers— 18×18 multipliers
Block RAM0.1 Mb—
Large RAM——
Max. user I/O107159
TransceiversNoneNone
Hard PCI ExpressNoneNone
Hard processorNoneNone
Process65 nm130 nm
Configuration memoryInternal flashInternal flash
Packages16
Design toolLattice DiamondLattice 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

Both devices offer similar logic capacity: 640 and 640 LUT4 equivalents.

The LCMXO2-640U is designed with Lattice Diamond and the LCMXO640E with Lattice Diamond.

Full specifications

See the complete spec sheets with packages and grades: LCMXO2-640U (MachXO2) and LCMXO640E (MachXO).