1. what are the various types ICs used in fabricating digital functional blocks?
Fixed function ICS
Application specific ICs
Field programmable ICs
2. Describe how a PLA functions? Compare PROMs and PLAs
The working principles of PROMs and PLAs are similar.However PLAs does not provide full decoding of input variables and does not generate all miniterms as in a PROM.A PLA uses a group of AND gates in place of address decoder, each input of which can be programmed to generate a product term of input variables.
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