PROM stands for Programmable Read-Only Memory
It is a memory chip on which information can be composed as it were once. Once a program has been composed onto a PROM, it remains there until the end of time. Not at all like Ram, PROMs hold their substance when the computer is turned off. A PROM is fabricated as blank memory, and after that, an uncommon burner is utilized to compose to it once. PROMS ordinarily store low-level gadget drivers for particular equipment and are burned once.
A programmable read-only memory may be a frame of advanced memory where the setting of each bit is bolted by a meld or anti-fuse. It is one sort of ROM. The information in them is changeless and cannot be changed. PROM could be a sort of ROM that’s modified after the memory is built. PROM chips have a few diverse applications, counting cell phones, video amusement supports, RFID labels, restorative gadgets, and other gadgets. They give a straightforward implies of programming electronic gadgets
block diagram of PROM
Applications of PROM
- Mobile Phones for giving Client Particular Selections.
- Implantable Restorative devices.
- Radio-Frequency Identification (RFID)tags.
- High definition Multimedia Interfaces(HDMI)
Characteristics of PROM
- It has programmable random access memory
- In prom And gates are fixed and or gates are programmable
- Prom Works as a memory
- It is not reusable.
- The storage endurance of PROM is high
- few functions can be actualized(it is effective when the work to be implemented(i.e the min terms) must have all the variables.
Advantages of PROM
- The programming can be done utilizing numerous sorts of program and does not depend on difficult wiring of the program to the chip.
- Since it isn’t conceivable to un-blow the intertwine, so the realness of the information remains intaglio and it is outlandish to evacuate or modify the substance.
Disadvantages of PROM
- PROM is that the data once burnt cannot be deleted or changed when recognized with errors.