Pin diagram of 8085 and pin description of 8085 free 8085. Refer functions of all the 8085 pins below in the table. It is an appended version of the 8080 microprocessor. Figure 1 shows the pin diagram of the 8085 microprocessor. Unit1 introduction to 8086 ece department microprocessors and microcontrollers page 2 iv address bus. Due to this reason, in the 40 pin ic of 8086 microprocessor, 8 pins i.
It is a 40 pin c package fabricated on a single lsi chip. The pin configuration and functional pin diagram of. Microprocessor 8085 notes free download as word doc. To study the various types of instructions provided by 8085 to study the pin diagram and the signals of various pins of 8085. The address bus consists of 16, 20, 24, or more parallel signal lines. Pin diagram of 8085 microprocessor computer science. 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. Microprocessor 8085 pin configuration electricalvoice. Introduction, features and pin diagram introduction to 8085 microprocessor. To find the largest number in an array of data using 8085 instruction set. The microprocessor 8086 is a 16bit cpu available in different clock rates and packaged in a 40 pin cerdip or plastic package. Draw the pin configuration and functional pin diagram of. Pin diagram of 8085 microprocessor is as given below.
The 20 lines of the address bus operate in multiplexed mode. 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. The address and data bus are multiplexed in this processor which helps in providing more control signals. Demultiplexing address and data bus using ale address latch enable. We will discuss the pin description in this section. Apr 28, 2020 pin diagram of 8085 microprocessor computer science engineering cse video edurev is made by best teachers of computer science engineering cse. Mvi b, 3eh move the data 3eh given in the instruction to b register. All these hardware modules as part of 8085 architecture have been shown in the figure with its respective pins used in 8085 chip. On these lines the cpu sends out the address of the memory location that is to be written to or read from. Pin diagram of intel 8085 microprocessor sreejith hrishikesan july 01, 2019. It provides serial interfacing with serial input data sid and serial output. Unit1 introduction to 8086 ece department microprocessors and microcontrollers page 1 uniti introduction to 8086 contents at a glance. Introduction to instruction set for 8085 microprocessor duration.
But before that have a look at the pin diagram of 8086 microprocessor. It, also known as central processing unit cpu is like an artificial brain. Microprocessor is a brain of every complex electronic gadget that is it is processing device of every computing device. Intel 8085 8bit microprocessor intel 8085 is an 8bit, nmos microprocessor. Jan 17, 2018 apr 28, 2020 pin diagram of 8085 microprocessor computer science engineering cse video edurev is made by best teachers of computer science engineering cse. Addressing modes of 8085 to perform any operation, we have to give the corresponding instructions to the microprocessor. This article discusses what is a 8085 microprocessor, pin configuration of 8085, which includes address bus, interrupts, rd, wr, ready, hold, hlda, intr. It determines the number of operations per second the processor can perform. Scribd is the worlds largest social reading and publishing site. This video is highly rated by computer science engineering cse students and has been viewed 416 times. It is the set of instructions that the microprocessor can understand. Microprocessor 8085 pin configuration the following image depicts the pin diagram of 8085 microprocessor.
Jan 29, 2018 52 videos play all microprocessor 8085 tutorials point india ltd. Program, data and stack memories occupy the same memory space. If the processor detects a cached address on the bus, it can take one of the two actions. The time for the back cycle of the intel 8085 a2 is 200 ns. 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. This is positive going pulse generated every time the 8085 begins an operation machine cycle. The 8085 is an 8bit general purpose microprocessor that can address 64k byte of memory. Program memory program can be located anywhere in memory.
Microprocessor 8085 pin configuration tutorialspoint. Tutorial on introduction to 8085 architecture and programming. A15a8, it carries the most significant 8bits of memoryio address. The following image depicts the pin diagram of 8085 microprocessor. Overview of 8085 microprocessor 8085 architecture pin diagram functional block diagram. The pins of a 8085 microprocessor can be classified into seven groups. Pin configuration of 8085 microprocessor electronics. Like the pin configuration of 8085 microprocessor, the 8086 microprocessor also contains 40 pins dual in line however, unlike the 8085 microprocessor, an 8086 to have better performance, operates in 2 modes that are minimum and maximum mode. Draw the pin configuration and functional pin diagram of p 8085. When the signal on this pin is low for at least 3 clocking cycles, it forces the microprocessor to reset itself. In this article you will get to know about the definition, architecture, block diagram and working of. These signals are used to identify the nature of operation.
Ad7ad0, it carries the least significant 8bit address and data bus. 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. Pin diagram and description of 8086 microprocessor. Pin diagram and pin description of 8085 microprocessor.
Pin diagram of 8086 microprocessor is as given below. Its data bus width is 8bit and address bus width is 16bit, thus it can address 216 64 kb of memory. Figure 5pin diagram of 8085 ale address latch enable. Appreciate the detailed explanation of address and data bus. Here in this page, you will be able to read the content of this class notes as an embedded pdf. In each instruction, programmer has to specify 3 things. Before knowing about the 8085 architecture in detail, lets us briefly discuss about the basic features of 8085 processor 8085 microprocessor is an 8bit microprocessor with a 40 pin dual in line package. It is the number of bits processed in a single instruction. Learn about the pin diagram, description of 8085 microprocessor. Mar 16, 2020 in this article, we will discuss 8085 microprocessor pin configuration or pin diagram of 8085 or external architecture of 8085 microprocessor. Once decoded, the instruction controls the remainder of the mpu, memory and io through the timing and control block. Dec 18, 2019 8085 microprocessor pin diagram explanation pdf 1. The photo image is shown in figure and pin diagram is shown in figure. The maximum memory attached to the 8085 microprocessor is 64 kb.1211 74 1211 1366 283 426 413 1316 757 1387 689 934 181 1094 1144 63 853 1318 424 599 872 688 729 1379 944 1390 153 710 1420 1466 794 964 577