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Generic array logic (GAL)

Generic array logic (GAL)
Tn the development of Programmable Array Logic (PAL) devices, the design target was to make available to the user/designer as many 'free' logic gates on the device as possible. Lattice Semiconductor Corporation has further developed the device into the Generic Array Logic-GAL. In essence, both devices are electrically erasable CMOS memory les that provide the user with reconfigurable logic and bipolar performance. This makes the GAL suitable for a wide variety of applications. Note that a PAL IC can be programmed only once, whereas a GAL TC can be prograrnmed time and again. This makes the use of GAL ICs mucb more cast effcctive than PAL ICs.
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