In this video, different types of memory in the Microcontroller has been discussed.
In modern day microcontrollers, you will find three different types of memories.
1) Flash Memory
2) SRAM
3) EEPROM
Flash Memory: It is a Non-Volatile type of memory and it used as program memory inside the microcontroller. It is one type of EEPROM or we can say that it is a subset of EEPROM.
So, in most microcontrollers, NOR Flash is used as program memory.
This NOR flash can support byte or word-wise read and write operations but erase operation is performed block-wise.(entire block of data is erased at a time)
Because of its certain advantages like faster read time, high density and low power consumption, it is preferred as a Program memory in Microcontrollers.
Typical write or erase operation can be performed on this flash memory is in the range of 10 K to 100 K.
SRAM:
SRAM is used as data memory in the microcontroller. It is a Volatile memory.
It is fastest among all available memory, so it provides a good read and writes speed, and that is why it is used as data memory in the microcontroller.
EEPROM:
It is Electrically Erasable and Programable ROM. In early days, this EEPROM was used as a program memory in microcontrollers. But nowadays, it is used as a data memory inside the microcontroller.
This EEPROM supports byte-wise read, write and erase operations.
This EEPROM can be used to store important data, (Sensor Log or status variables) in the program.
The typical write/erase cycles supported by today's EEPROM is in the range of 100 K to 500K.
The timestamps for the different topics in the video are given below:
2:08 Program Memory: Evolution of different program memories in Microcontrollers.
5:35 Data Memory in Microcontroller: SRAM and EEPROM
This video will be helpful to all students of science and engineering in understanding the various memories inside the microcontrollers.
#TypesofMemory
#Microcontroller
#FlashMemory
#SRAM
#EEPROM
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