We are not sure how memorizing the pin diagram of intel 8085 is going to help us once we pass our microprocessor and. Pin diagram and pin description of 8085 microprocessor september 2, 2016 admin microprocessor 0. Figure 1 shows the pin diagram of the 8085 microprocessor. The block diagram explaining the architecture of intel 8085 microprocessor is shown in fig.
The time for the back cycle of the intel 8085 a2 is 200 ns. Each instruction is represented by an 8bit binary value. It goes true low one half clock cycle after the falling edge. Pin description of 8085 contd 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. Microprocessor 8086 pin configuration in microprocessor microprocessor 8086 pin configuration in microprocessor courses with reference manuals and examples pdf. Although this manual is designed primarily for reference, it also contains some instructional matenal to help the beginning. The pins of a 8085 microprocessor can be classified into seven groups. An instruction is a command given to the computer to perform a specified operation on given data. Pin configuration of 8085 microprocessor electronics. In this article, we will discuss 8085 microprocessor pin configuration or pin diagram of 8085 or external architecture of 8085 microprocessor. Pin diagram of 8085 microprocessor with description. Ad7ad0, it carries the least significant 8bit address and data bus.
For both high and low states, the output q draws a current from the input of the or gate. The internal architecture of 8085 includes the alu, timing and control unit, instruction register and decoder, register array, interrupt control and serial io. The instruction set of a microprocessor is the collection of the instructions that the microprocessor is designed to execute. Intel 8085 8bit microprocessor intel 8085 is an 8bit, nmos microprocessor. Over view of microprocessor 8085 and its application. It is 40 pin ic, requires 3 mhz speed of operation and clock cycle is 320 ns. Preface this manual describes programming with intel s assembly language. Pin diagram and pin description of 8085 microprocessor.
A15a8, it carries the most significant 8bits of memoryio address. What is read pin in 8085 in microprocessor answers. The modified versions of the 8085 processor have these minimum common features and functional similarities. Microprocessor 8085 pin configuration in microprocessor. What is pin configuration of microprocessor 8085 answers. You can visit similar threads as well for more free pdf and get yourself updated. Note that the 8086 has data bus width of 16bit, and it is able to address. Pin diagram of 8085 microprocessor is as given below. Learn 8085 microprocessor pin diagram in 2 minutes guaranteed. It indicates that external logic should drive the data bus with data during a read cycle. The processor has attributes of both 8and 16bit microprocessors. Intel 8085 8bit microprocessor shrimati indira gandhi. If you continue browsing the site, you agree to the use of cookies on this website. How many output pins are there in microprocessor 8085.
Typically smaller systems and contains a single microprocessor. Jun 15, 2017 8085 microprocessor, generally pronounced as eightyeighty five microprocessor is an 8bit microprocessor. Tutorial on introduction to 8085 architecture and programming. The intel 8085 eightyeightyfive is an 8bit microprocessor produced by intel and introduced in march 1976. When interrupt pin is activated, an isr will be called, interrupting the program that is. The following image depicts the pin diagram of 8085 microprocessor. These signals are used to identify the nature of operation. Pin diagram 8085 microprocessor microprocessor youtube. Microprocessor 8085 pin configuration tutorialspoint. The 8085 is an 8bit general purpose microprocessor that can address 64k byte of memory.
It operates on 8bit data and uses 16bit address to access the memory. Mar 04, 2014 learn 8085 microprocessor pin diagram in 2 minutes guaranteed. In bellow the pin configuration of 8085 microprocessor is shown in figure. Microprocessor 8085 pin configuration electricalvoice. Microprocessor 8086 pin configuration tutorialspoint. Pin diagram of 8085 microprocessor with description 8085 is a general purpose microprocessor having 40 pins and works on single power supply. Scribd is the worlds largest social reading and publishing site. Microprocessor 8085 pin configuration in microprocessor microprocessor 8085 pin configuration in microprocessor courses with reference manuals and examples pdf. It is directly compatible with 8086 software and 80808085 hardware and peripherals. Apr 15, 2018 pin diagram of 8085 video lecture of 8085 microprocessors chapter from microprocessor subject for electronics engineering students.
It is a 40 pin c package fabricated on a single lsi chip. With the help of 16bit address, 8085 can access 216 65536 64k memory locations. It is a 40 pin dipdual in package ic by intel introduced in 1976. Over view of microprocessor 8085 and its application doi. Pin diagram of 8085 and pin description of 8085 free 8085. Microprocessor 8086 pin configuration in microprocessor. They are used for the most significant bit of memory address. The signals from the pins can be grouped as follows. Mar 16, 2020 in this article, we will discuss 8085 microprocessor pin configuration or pin diagram of 8085 or external architecture of 8085 microprocessor. This is a 3byte instruction, the second byte specifies the loworder address and the third byte specifies the highorder address.
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. Nov 21, 2007 intel 8085 block diagram slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. It is an appended version of the 8080 microprocessor. Learn 8085 microprocessor pin diagram in 2 minutes. The 6808 and 8085, hdsp211x to an intel 8085 microprocessor. Cheaper since all control signals for memory and io are generated by the microprocessor. Download free sample and get upto 48% off on mrprental. Let me know if you need more study material for you course. The entire group of instructions that a microprocessor supports is called instruction set. Pin diagram and pin description of 8086 the following pin function descriptions are for the microprocessor 8086 in either minimum or maximum mode. 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.
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