Do you know what ROM is?
Its characteristic is that once the data is stored, it can no longer be changed or deleted.
So, what does ROM do?
Types of ROM
Now lets discuss types of ROM for the basic understanding.
MROM Mask Read Only Memory
MROM is the short form of Mask Read Only Memory.
The process of programming a PROM is sometimes called burning the PROM.
The memory can be programmed just once after manufacturing by blowing the fuses, which is an irreversible process.
Usually, an EPROM eraser can achieve this purpose, making it possible to reprogram the memory.
For this purpose, a quartz transparent window is reserved on the package of the memory for easy exposure.
It can be erased and reprogrammed about 10,000 times.
Both erasing and programming take about 4 to 10 milliseconds.
Therefore, the process of reprogramming can be flexible but slow.
Flash Memory
Flash memory (flash) is a modern key in of EEPROM.
