Exact numbers and features vary from device to device, but every CLB consists of a configurable switch matrix with 4 or 6 inputs, some selection circuitry (MUX, etc), and flip-flops.

• 实际数量和特性会依器件的不同而不同,但是每个CLB都包含一个由4或6个输入、一些选型电路(多路复用器等)和触发器组成的可配置开关矩阵。