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Digital Logic Circuits 35
TYPES O
ROM
- Store information (function) du
- Mask is used in the production
- Unalterable
- Low cost for large quantity pro
PROM (Programmable ROM)
- Store info electrically using PR
- Unalterable
- Higher cost than ROM -> used
-> Can be used in small q
EPROM (Erasable PROM)
- Store info electrically using PR
- Stored info is erasable (alterab
some devices) and rewri
- Higher cost than PROM but re
development phase. Not
due to eras ability
Computer Organization
