8085 MPU (MICRO PROCESSOR UNIT)
(Architecture and Pin Diagram) 8085 is pronounced as "eighty-eighty-five" microprocessor. It is an 8-bit microprocessor designed by Intel in 1977 using NMOS technology [( NMOS is nothing but negative channel metal oxide semiconductor; it is a type of semiconductor that charges negatively. So that transistors are turned ON/OFF by the movement of electrons .)] It was the first commercially successful microprocessor. It is used in washing machines, microwave ovens, mobile phones, different electronic devices etc. ARCHITECTURE 8085 consists of the following functional units − o Accumulator It is an 8-bit register used to perform operations like arithmetic, logical, I/O & LOAD/STORE. It is connected to internal data bus & ALU. o Arithmetic and logic unit An arithmetic-logic unit ( ALU ) is the part of a computer processor (CPU) that carries out operations (like addition, subtraction, AND, OR, etc.) on the op...
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