Muart pin configuration the status register provides all of the information, crystal frequency for the 8085 results in a 3. Pin diagram and pin description of 8085 microprocessor. 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. After execution of the new program, microprocessor goes. Note of 8085 pin configuration by srikrishna thota. The serial data on this pin delivers its output to the seventh bit of the accumulator when sim instruction is executed. Note of 8085 pin configuration by srikrishna thota lecturenotes. Microprocessor 8085 pin diagram pdf these advanced versions are designed using hmos. The 8086 operates in single processor or multiprocessor configuration to achieve high performance. It is very important to know the pin configuration of 8085 microprocessor before study the 8085 microprocessor programming. Its data bus width is 8bit and address bus width is 16bit, thus it can address 216 64 kb of memory.
Before go for timing diagram of 8085 microprocessor we should know some basic parameters to draw timing diagram of 8085 microprocessor. Microprocessor architecture, programming, and applications with the 8085, 5th edition. This article discusses what is a 8085 microprocessor, pin configuration of 8085, which includes address bus, interrupts, rd, wr, ready, hold, hlda, intr. View and download intel 8086 specification sheet online. Mitras 8085 simulator available for download from various sites.
Apr 15, 2018 pin diagram of 8085 video lecture of 8085 microprocessors chapter from microprocessor subject for electronics engineering students. Here the content of b register is copied to the accumulator. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Pin diagram of 8085 microprocessor with description. The pin configuration and functional pin diagram of.
Microprocessor 8085 pin configuration in microprocessor microprocessor 8085 pin configuration in microprocessor courses with reference manuals and examples pdf. The microprocessor is one of most known subject is computer engineering branch. Lecture note on microprocessor and microcontroller theory and. With help of timing diagram we can easily calculate the execution time of instruction as well as program. 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. The pins serve a particular function in minimum mode single. Microprocessor 8085 pin configuration the following image depicts the pin diagram of 8085 microprocessor. 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. Microprocessors 14 8085 is pronounced as eightyeightyfive microprocessor.
Pin diagram of 8085 microprocessor is as given below. Pin configuration of 8085 microprocessor electronics. Thus the pin diagram and signals of 8085 microprocessor are explained in detail. 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. You can visit similar threads as well for more free pdf and get yourself updated. Data bus ad7ad0, it carries the least significant 8bit address and data bus. In bellow the pin configuration of 8085 microprocessor is shown in figure. Address bus a15a8, it carries the most significant 8bits of memoryio address.
Draw the pin configuration and functional pin diagram of p 8085. Microprocessor 8085 pin configuration in microprocessor. In this article, we will discuss 8085 microprocessor pin configuration or pin diagram of 8085 or external architecture of 8085 microprocessor. Pin configuration of 8085 pin out diagram it has 40 pins and. The status of the interrupt enable flag bit is updated at the beginning of each cycle. It is an 8bit microprocessor designed by intel in 1977 using nmos technology. Draw the pin configuration and functional pin diagram of. The following image depicts the pin diagram of 8085 microprocessor.
Ad7ad0, it carries the least significant 8bit address and data bus. Control and status signals these signals are used to identify the nature of operation. During t1 state these lines are the four most significant address lines for memory operations. Pin diagram of 8085 and pin description of 8085 free 8085. It is a 40 pin c package fabricated on a single lsi chip. Microprocessor 8085 pin configuration electricalvoice. It is an appended version of the 8080 microprocessor. A15a8, it carries the most significant 8bits of memoryio address. To know the working of 8085 microprocessor, we should know the timing diagram of 8085 microprocessor. Tutorial on introduction to 8085 architecture and programming.
Pin diagram 8085 microprocessor microprocessor youtube. During memory and io operations, status information is available on these lines during t2, t3, and t4 states. Home note of 8085 pin configuration by srikrishna thota. The microprocessor 8086 is a 16bit cpu available in different clock rates and packaged in a 40 pin cerdip or. The pins of a 8085 microprocessor can be classified into seven groups. Draw the different clock circuits which can be connected to pins 1 and 2 of 8085. With neat pin diagram explain the various signals of 8085 microprocessormay04. The signals from the pins can be grouped as follows. Microprocessor architecture, programming, and applications.
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