Memory Interfacing:-As we know that any system which process digital data needs the facility for storing the data. Interfacing is a technique to be used for connecting the Microprocessor to Memory. Now a days Semiconductor memories are used for storing purpose. There are some of the advantages of the semiconductor memory. Small size High speed Better reliability Low cost Generally, RAM or ROM is used for memory interfacing. Memory:-A memory is a digital IC which stores the data in binary form. Memory Size:-The number of location and number of bits per word will vary from memory to memory. For example, If a particular memory chip is capable of storing M words with each word having N-bits.

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1. Microprocessor Interfacing Techniques

Architecture and Organization of 8085 - Instruction Set.Lecture XIV 8086 marching band pdf Memory. Memory interfacing in 8085 microprocessor notes How to interface a memory device with µp. For interfacing memory devices to µp 8085, keep.How a program is executed by microprocessor 8085? Procedure to communicate with memory by a microprocessor.

Then the size of the memory will be M × N. Interfacing a ROM memory of 4096*8 with 8085 Microprocessor:- Given memory size = 4096 * 8 4096 =2^12. So 12 lines will be used for interfacing. A0 to A11 In this system A0 to A11 lines of Microprocessor will be connected to the address lines of the memory.

Microprocessor Interfacing Techniques

And D0 to D7 of the 8085 microprocessor will be connected to the data bus of the memory. As we know that the it is EPROM, so only RD pin is connected to the microprocessor. There is not the facility for writing data. In case if you are using RAM then you have to connect one more pin for writing operation.