Thus the pin diagram and signals of 8085 microprocessor are explained in detail. Data bus ad7ad0, it carries the least significant 8bit address and data bus. Pin diagram 8085 microprocessor microprocessor youtube. Pin diagram and pin 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. Its data bus width is 8bit and address bus width is 16bit, thus it can address 216 64 kb of memory.
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. It is an 8bit microprocessor designed by intel in 1977 using nmos technology. During memory and io operations, status information is available on these lines during t2, t3, and t4 states. The pin configuration and functional pin diagram of. Intel 16bit hmos microprocessor specification sheet. The signals from the pins can be grouped as follows. Draw the different clock circuits which can be connected to pins 1 and 2 of 8085. View and download intel 8086 specification sheet online.
The 8085 is an 8bit general purpose microprocessor that can address 64k byte of memory. Microprocessor 8085 pin configuration electricalvoice. The 8086 operates in single processor or multiprocessor configuration to achieve high performance. Here the content of b register is copied to the accumulator.
During t1 state these lines are the four most significant address lines for memory operations. The serial data on this pin delivers its output to the seventh bit of the accumulator when sim instruction is executed. Pin diagram of 8085 microprocessor with description 8085 is a general purpose microprocessor having 40 pins and works on single power supply. You can visit similar threads as well for more free pdf and get yourself updated.
Sc cs iv semester microprocessor and its applications unit i introduction to microprocessor evolution of microprocessor general architecture of microprocessor system architecture of 8085 a pin configuration machine language and assembly language. The microprocessor 8086 is a 16bit cpu available in different clock rates and packaged in a 40 pin cerdip or. The muarts pin configuration can be seen in figure 2. The time for the back cycle of the intel 8085 a2 is 200 ns.
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. 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 microprocessor is one of most known subject is computer engineering branch. Pin diagram of 8085 microprocessor with description.
The pins of a 8085 microprocessor can be classified into seven groups. 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. To know the working of 8085 microprocessor, we should know the timing diagram of 8085 microprocessor. Draw the pin configuration and functional pin diagram of p 8085.
It is a 40 pin c package fabricated on a single lsi chip. With help of timing diagram we can easily calculate the execution time of instruction as well as program. Microprocessor architecture, programming, and applications. Pin configuration of 8085 microprocessor electronics. Pin diagram of 8085 and pin description of 8085 free 8085.
Pin diagram of 8085 microprocessor is as given below. After execution of the new program, microprocessor goes. Note of 8085 pin configuration by srikrishna thota lecturenotes. The status of the interrupt enable flag bit is updated at the beginning of each cycle.
Microprocessor 8085 pin configuration in microprocessor microprocessor 8085 pin configuration in microprocessor courses with reference manuals and examples pdf. Figure 1 shows the pin diagram of the 8085 microprocessor. With neat pin diagram explain the various signals of 8085 microprocessormay04. Microprocessor 8085 pin configuration in microprocessor. Home note of 8085 pin configuration by srikrishna thota. Muart pin configuration the status register provides all of the information, crystal frequency for the 8085 results in a 3. The 8085 has extensions to support new interrupts, with three maskable interrupts rst 7. The following image depicts the pin diagram of 8085 microprocessor. 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. Microprocessor 8085 pin configuration the following image depicts the pin diagram of 8085 microprocessor. Lecture note on microprocessor and microcontroller theory and. Ad7ad0, it carries the least significant 8bit address and data bus.
Before go for timing diagram of 8085 microprocessor we should know some basic parameters to draw timing diagram of 8085 microprocessor. 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. In bellow the pin configuration of 8085 microprocessor is shown in figure. Pin diagram of 8085 video lecture of 8085 microprocessors chapter from microprocessor subject for electronics engineering students. Address bus a15a8, it carries the most significant 8bits of memoryio address. Microprocessor architecture, programming, and applications with the 8085, 5th edition.
Apr 15, 2018 pin diagram of 8085 video lecture of 8085 microprocessors chapter from microprocessor subject for electronics engineering students. A15a8, it carries the most significant 8bits of memoryio address. It is an appended version of the 8080 microprocessor. Microprocessors 14 8085 is pronounced as eightyeightyfive microprocessor. Microprocessor 8085 pin diagram pdf these advanced versions are designed using hmos. Details you may be offline or with limited connectivity.
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