what are PLD's?How are they classified.
The programmable logic devices (PLD's) are used in a lot of applications, and replace SSI and MSI circuits, due the space saving and reduce the number of devices in a certain design. A PLD is made of a matrix of AND and OR gates, that can be programmed to obtain certain logic functions. There are four types of devices that can be clasified as PLD's: a)The Programmable Read-Only Memory, PROM. b)The Programmable Logic Array , PLA. c)The Programmable Array Logic, PAL. d)The Generic Array Logic, GAL.
The programmable logic devices (PLD's) are used in a lot of applications, and replace SSI and MSI circuits, due the space saving and reduce the number of devices in a certain design. A PLD is made of a matrix of AND and OR gates, that can be programmed to obtain certain logic functions. There are four types of devices that can be clasified as PLD's: a)The Programmable Read-Only Memory, PROM. b)The Programmable Logic Array , PLA. c)The Programmable Array Logic, PAL. d)The Generic Array Logic, GAL.
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