8085A - Intel

8085A 8-bit Microprocessor

Intel 8085 8-bit Microprocessor Intel 8085 is an 8-bit, NMOS microprocessor. It is a 40 pin C package fabricated on a single LSI chip. The Intel 8085A uses a single +5V D.C supply for its operation. Its clock speed is about 3 MHz. The clock cycle is of 320 ns. The time for the back cycle of the Intel 8085 A-2 is 200 ns. It has 80 basic instructions and 246 o.

Features

l signals which are necessary for the execution of instructions. It controls provides status, control and timing signals which are required for the operation of memory and I/O 1 devices. It controls the entire operation of the microprocessor and peripherals consented to it. Thus it is seen that control unit of the CPU acts as a brain of the computer. Registers Figure 1 show the various registers of Intel 8085A. Registers are small memories within the CPU. They are used by the microprocessor for temporary storage and manipulation of data and instructions. Data remain in the registers till they.