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O que (quem) é Programmable Array Logic - definição

Programmable Array Logic

TYPE OF PROGRAMMABLE LOGIC DEVICE

John Birkner; Programmable array logic

Programmable Array Logic (PAL) is a family of programmable logic device semiconductors used to implement logic functions in digital circuits introduced by Monolithic Memories, Inc. (MMI) in March 1978.

https://en.wikipedia.org/wiki/Programmable_Array_Logic

Programmable Array Logic

TYPE OF PROGRAMMABLE LOGIC DEVICE

John Birkner; Programmable array logic

<hardware> (PAL) A family of fuse-programmable logic integrated circuits originally developed by MMI. Registered or combinatorial output functions are modelled in a sum of products form. Each output is a sum (logical or) of a fixed number of products (logical and) of the input signals. This structure is well suited for automatic generation of programming patterns by logic compilers. PAL devices are programmed by blowing the fuses permanently using overvoltage. Today, more complex devices based on the same original architecture are available (CPLD's for Complex PLD's) that incorporate the equivalent of several original PAL chips. PAL chips are, however, still popular due to their high speed. Generic Array Logic devices are reprogrammable and contain more logic gates. (1995-12-09)

Generic Array Logic

TYPE OF DIGITAL CIRCUIT

Programmable electrically erasable logic; Gate Array Logic; Generic array logic

<hardware, integrated circuit> (GAL) A newer kind of Programmable Array Logic based on EEPROM storage cells, been pioneered by Lattice. GALs can be erased and reprogrammed and usually replace a whole set of different PALs (hence the name). (1995-12-09)