In this article, we will discuss 8085 microprocessor pin configuration or pin diagram of 8085 or external architecture of 8085 microprocessor. Learn 8085 microprocessor pin diagram in 2 minutes guaranteed. Microprocessor 8085 by ramesh gaonkar pdf programming and applications with 8085, 5th edition. The following image depicts the pin diagram of 8085 microprocessor. In bellow the pin configuration of 8085 microprocessor is shown in figure. Buy microprocessor 8085 and its interfacing by mathur, sunil pdf online. Tutorial on introduction to 8085 architecture and programming. The intel 8085 microprocessor is a second generation microprocessor and is an eightbit processor designed in the year of 1976 with the nmos technology with a 40 pin dip, approximately consisting 6500 transistors having a power supply of 5v.
Instructions of various types 1byte,2byte and 3byte are explained. Ad7ad0, it carries the least significant 8bit address and data bus. It is a 8 bit microprocessor, introduce by intel in 1976. Lecture note on microprocessor and microcontroller theory vssut. Microprocessor 8085 notes free download as word doc. It is a 40 pin dipdual in package ic by intel introduced in 1976. The internal architecture of 8085 includes the alu, timing and control unit, instruction register and decoder, register array, interrupt control and serial io control. The time for the back cycle of the intel 8085 a2 is 200 ns.
Intel 8085 8bit microprocessor intel 8085 is an 8bit, nmos microprocessor. A15a8, it carries the most significant 8bits of memoryio address. The intel 8085 eightyeightyfive is an 8bit microprocessor produced by intel and introduced in march 1976. The 8085 is an 8bit general purpose microprocessor that can address 64k byte of memory. You can visit similar threads as well for more free pdf and get.
Lecture note on microprocessor and microcontroller theory and applications. How many output pins are there in microprocessor 8085. It is directly compatible with 8086 software and 80808085 hardware and peripherals. Pin diagram of 8085 microprocessor with description. Microprocessor architecture, programming, and applications with the 8085 by ramesh s. Opcode operand machine codehex code byte description. Address bus a15a8, it carries the most significant 8bits of memoryio address. Includes the instructions that moves copies data between registers or between memory locations and registers. The microprocessor is one of most known subject is computer engineering branch.
Detailed explanation of pin description of 8085 microprocessor 1. The pins serve a particular function in minimum mode single. Pin diagram of 8085 and pin description of 8085 free 8085. Pin configuration of the microprocessor 8085 is shown in figure. Microprocessor mechanical and electrical equipment for buildings pdf free architecture. Microprocessor 8085 by ramesh gaonkar pdf download.
Download microprocessor 8085 and its interfacing by mathur. Microprocessors 14 8085 is pronounced as eightyeightyfive microprocessor. These signals are used to identify the nature of operation. The ebook has complete chapters on microprocessor and it is. Immediate addressing,register addressing,direct addressing,indirect addressing. Microprocessor 8085 pin configuration electricalvoice. The signals from the pins can be grouped as follows. To maximise the functions on the available pins, the 8085 uses a multiplexed. It has 16bit address bus and hence can address up to 26165535 bytes 64kb memory location through a0a15. Figure 1 shows the pin diagram of the 8085 microprocessor. The 8085 instruction set can be classified into the following five functional headings. Its data bus width is 8bit and address bus width is 16bit, thus it can address 216 64 kb of memory. The in and out instructions are used to read and write io port data. Intel 8085 8bit microprocessor shrimati indira gandhi.
Click on document microprocessor architecture, programming, and applications with the 8085 by ramesh s. This uptodate and contemporary book is designed as a first level undergraduate text on microprocessors for the students of engineering computer science, electrical, electronics, telecommunication, instrumentation, computer applications and information technology. Detailed explanation of pin description of 8085 microprocessor. Intel, alldatasheet, datasheet, datasheet search site for electronic components and. Microprocessor 8085 pin configuration the following image depicts the pin diagram of 8085 microprocessor. Pin diagram of 8085 microprocessor is as given below. The 8085a incorporates all of the features that mental ray pdf the 8224 clock generator and 8228. Pin configuration of 8085 microprocessor electronics. Pin diagram of 8085 microprocessor with description 8085 is a general purpose microprocessor having 40 pins and works on single power supply. It gives a clear exposition of the architecture, programming and interfacing and applications of 8085 microprocessor. Pdf msan145 8085 intel microprocessor block diagram intel 8085 interfacing of memory devices with 8085 8085 microprocessor. The 8085 microprocessor is an 8bit processor available as a 40pin ic package and uses. For both high and low states, the output q draws a current from the input of the or gate. Clk out this signal can be used as the system clock for other devices.
From the collection, a scannedin computerrelated tel 8085 9800301c 8080 8085 assembly language programming manual nov78. If the operand is a memory location, its location is specified by the contents of the hl registers. Microprocessor 8085 datasheet pdf with the 8080a microprocessor, and it is designed to improve the present. It is very important to know the pin configuration of 8085 microprocessor before study the 8085 microprocessor programming. It is an 8bit microprocessor designed by intel in 1977 using nmos technology. Learn 8085 microprocessor pin diagram in 2 minutes. A draw the pindiagram of 8085 micro processor and give. Address bus is 16 bit that means it can address 64k bytes. Lecture note on microprocessor and microcontroller theory.
The 8086 operates in single processor or multiprocessor configuration to achieve high performance. It is an appended version of the 8080 microprocessor. Each instruction is represented by an 8bit binary value. The pins of a 8085 microprocessor can be classified into seven groups. Operations performed by 8085 the alu performs the arithmetic and logical operations. Download free sample and get upto 48% off on mrprental. Instruction set of 8085 an instruction is a binary pattern designed inside a microprocessor to perform a specific function.
The 8085 microprocessor is an 8bit generalpurpose microprocessor having 40 pins which is capable of addressing 64 kb of memory. Pin description of 8085contd page2 the microprocessor is a clockdriven semiconductor device consisting of electronic logic circuits manufactured by using either a largescale integration lsi or verylargescale integration vlsi technique. The entire group of instructions that a microprocessor supports is called instruction set. Microprocessor architecture, programming and applications with the 8085 is a detailed guide that provides information on.
It is a softwarebinary compatible with the morefamous intel 8080 with only two minor instructions added to support its added interrupt and serial inputoutput features. The intel 8085 eightyeightyfive is an 8bit microprocessor produced by intel and introduced. Pin diagram and pin description of 8085 microprocessor. This page of 8085 microprocessor tutorial describes 8085 microprocessor programming. This article discusses what is a 8085 microprocessor, pin configuration of 8085, which includes address bus, interrupts, rd, wr, ready, hold, hlda, intr. Microprocessor 8085 pin configuration tutorialspoint.
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