Working of RAM
WORKING OF RAM :-
RAM stores the data until the processor is executing the current data.
Once the processor finishes the current execution, RAM forwards the next
data to the processor.
The processor accesses the Data from the RAM is a random order with the help of the memory cell address. The cell address contains the row number and the column number of the memory cell. When the processor receives the data, it actually receives the memory cell address of the data. The RAM controller accepts the memory cell address. The RAM controller reads the data from the cell address and then sends the data in its respective address lines. The address lines contain the transistors and the capacitors for reading the data. The control circuit reads the capacitor when the transistors opens the cell. When the capacitor is charged , the memory cell returns a bit value as 1. When the capacitor is empty, the memory cell returns the bit value as 0.
In DRAM, each cell contains a pair of transistors and capacitor. Each cell represents a single bit of data in the binary format of 0 and 1. The capacitor stores the data in the memory cell. The transistor with the help of the memory control circuit reads these memory cells.A transistor acts as a switch. It turns on when the control circuit reads the capacitor. It turns off when the capacitor is empty. The DRAM Controller refreshes the capacitor after each reading of the memory cell. DRAM refreshes automatically. access speed of RAM is 80ns to 50 NS.
The processor accesses the Data from the RAM is a random order with the help of the memory cell address. The cell address contains the row number and the column number of the memory cell. When the processor receives the data, it actually receives the memory cell address of the data. The RAM controller accepts the memory cell address. The RAM controller reads the data from the cell address and then sends the data in its respective address lines. The address lines contain the transistors and the capacitors for reading the data. The control circuit reads the capacitor when the transistors opens the cell. When the capacitor is charged , the memory cell returns a bit value as 1. When the capacitor is empty, the memory cell returns the bit value as 0.
In DRAM, each cell contains a pair of transistors and capacitor. Each cell represents a single bit of data in the binary format of 0 and 1. The capacitor stores the data in the memory cell. The transistor with the help of the memory control circuit reads these memory cells.A transistor acts as a switch. It turns on when the control circuit reads the capacitor. It turns off when the capacitor is empty. The DRAM Controller refreshes the capacitor after each reading of the memory cell. DRAM refreshes automatically. access speed of RAM is 80ns to 50 NS.
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