Jan 17, 2018 may 17, 2020 pin diagram of 8085 microprocessor computer science engineering cse video edurev is made by best teachers of computer science engineering cse. It is a 40 pin c package fabricated on a single lsi chip. Pdf chapter 4 8085 microprocessor architecture and memory. In each instruction, programmer has to specify 3 things. The photo image is shown in figure and pin diagram is shown in figure. Pin configuration of 8085 microprocessor electronics. Microprocessor 8085 pin configuration electricalvoice. A15a8, it carries the most significant 8bits of memoryio address. Introduction, features and pin diagram introduction to 8085 microprocessor. Pin diagram of intel 8085 microprocessor electronics and.
All these hardware modules as part of 8085 architecture have been shown in the figure with its respective pins used in 8085 chip. Pin diagram and description of 8086 microprocessor. Figure 5pin diagram of 8085 ale address latch enable. This is positive going pulse generated every time the 8085 begins an operation machine cycle. 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. May 17, 2020 pin diagram of 8085 microprocessor computer science engineering cse video edurev is made by best teachers of computer science engineering cse. These signals are used to identify the nature of operation. 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 microprocessor 8086 is a 16bit cpu available in different clock rates and packaged in a 40 pin cerdip or plastic package.
In this article, we will discuss 8085 microprocessor pin configuration or pin diagram of 8085 or external architecture of 8085 microprocessor. This processor can be built with electronic logic circuits that are fabricated using the technologies like vlsi very large scale integration or lsi large scale integration. The time for the back cycle of the intel 8085 a2 is 200 ns. The maximum memory attached to the 8085 microprocessor is 64 kb. Pin diagram of 8085 microprocessor with description. Dec 18, 2019 8085 microprocessor pin diagram explanation pdf 1.
Microprocessor is a brain of every complex electronic gadget that is it is processing device of every computing device. 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. In this article you will get to know about the definition, architecture, block diagram and working of 8085 microprocessor. Like the pin configuration of 8085 microprocessor, the 8086 microprocessor also contains 40 pins dual in line. It provides serial interfacing with serial input data sid and serial output.
Intel programmable interval timer learn microprocessor in simple and pin configuration, addressing modes and interrupts, instruction sets, programmable peripheral interface, intel a pin description, intel interfacing timer with download as word doc. Learn about the pin diagram, description of 8085 microprocessor. The address and data bus are multiplexed in this processor which helps in providing more control signals. To study the pin diagram we group the signals into 5 categories. Pin diagram of 8085 and pin description of 8085 free 8085. When the signal on this pin is low for at least 3 clocking cycles, it forces the microprocessor to reset itself. Draw the pin configuration and functional pin diagram of p 8085. Addressing modes of 8085 to perform any operation, we have to give the corresponding instructions to the microprocessor. Figure 1 shows the pin diagram of the 8085 microprocessor. The 20 lines of the address bus operate in multiplexed mode. Draw the pin configuration and functional pin diagram of. This video is highly rated by computer science engineering cse students and has been viewed 421 times. The intel microprocessor 8085 is an 8 bit microprocessor. Demultiplexing address and data bus using ale address latch enable.
The 8085a is a nmos chip with 40 pin package and it is a 8 bit microprocessor. Ad7ad0, it carries the least significant 8bit address and data bus. It is an appended version of the 8080 microprocessor. Pin diagram of 8085 microprocesoor free download as powerpoint presentation. Here in this page, you will be able to read the content of this class notes as an embedded pdf. However, unlike the 8085 microprocessor, an 8086 to have better performance, operates in 2 modes that are minimum and maximum mode. Microprocessor 8085 notes free download as word doc. The pin configuration and functional pin diagram of.
This article discusses what is a 8085 microprocessor, pin configuration of 8085, which includes address bus, interrupts, rd, wr, ready, hold, hlda, intr. Jan 29, 2018 52 videos play all microprocessor 8085 tutorials point india ltd. In this article you will get to know about the definition, architecture, block diagram and working of. Pin diagram of 8085 microprocesoor central processing unit.
To generate internal clock signals, 8085 microprocessor requires external inputs. Lecture note on microprocessor and microcontroller theory. The 8085 is an 8bit general purpose microprocessor that can address 64k byte of memory. Pin diagram of 8085 microprocessor computer science. Pin diagram of 8086 microprocessor is as given below. V cc hold hlda clkout reset in ready iom s 1 rd ale s 0 a 15 a 14 a a 12 a 11 a 10 a 9 a 8 wr x 1 x 2 reset out sod sid trap rst 7. With neat pin diagram explain the various signals of 8085. Microprocessor 8085 pin configuration the following image depicts the pin diagram of 8085 microprocessor. Appreciate the detailed explanation of address and data bus. The following image depicts the pin diagram of 8085 microprocessor. To generate internal clock signals, 8085 microprocessor requires external inputs from x1 and x2 pins. Mar 16, 2020 in this article, we will discuss 8085 microprocessor pin configuration or pin diagram of 8085 or external architecture of 8085 microprocessor.
Refer functions of all the 8085 pins below in the table. Its data bus width is 8bit and address bus width is 16bit, thus it can address 216 64 kb of memory. Law of conservation of angular momentum statement and derivation. Pin diagram of 8085 microprocessor is as given below. Microprocessor 8085 pin configuration tutorialspoint.
In bellow the pin configuration of 8085 microprocessor is shown in figure. It, also known as central processing unit cpu is like an artificial brain. Mvi b, 3eh move the data 3eh given in the instruction to b register. These x1 and x2 pins are also called crystal input pins. The pins of a 8085 microprocessor can be classified into seven groups. Introduction to instruction set for 8085 microprocessor duration. Unit1 introduction to 8086 ece department microprocessors and microcontrollers page 1 uniti introduction to 8086 contents at a glance.
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