Electronic – What are ALMs, LEs and ALUTs


Does ALM mean "Adaptive logic module"?

Jul 1, 2013 –

One ALUT is equivalent to about 1.25 LEs.

Does LE mean logic element and ALUT means adaptive look-up table?

Best Answer


The Adaptive Logic Module (ALM) is the basic building block of supported device families and is designed to maximize performance and resource usage. Each ALM, composed of two Adaptive Look-Up Tables (ALUT) ...

LE has meant "logic element" for many years, although what defines a logic element is not entirely static, in Altera-land is usually means a 4-input look-up table (sometimes called a 4-LUT) + a d-type flipflop (DFF).