Programmable Array Logic

Programmable Array Logic (PAL) is a type of Programmable Logic Device (PLD) used to realize a particular logical function. PALs comprise of an AND gate array followed by an OR gate array as shown by Figure 1. However it is to be noted that here only the AND gate array is programmable unlike the OR … Read more

Read Only Memory | ROM

Read Only Memory (ROM) is a kind of memory which forms an integral part of many electronic components including those of computers. The major trait of this memory is the fact that, here, the number of reads are unrestricted while the number of writes are fixed. This means that in a ROM, the user can … Read more

Programmable Logic Devices

A logic device is an electronic component which performs a definite function which is decided at the time of manufacture and will never change. For example, a not gate always inverts the logic level of the input signal and does/can-do-nothing else. On the other hand, Programmable Logic Devices (PLDs) are the components which do not … Read more