Introduction to Microprocessor

1. PRINCIPLES OF 8085
MICROPROCESSOR
Dr.S.Barani
School of Electrical and Electronics Engineering
Sathyabama Institute of Science and Technology
Week 1 – Introduction to Microprocessor

2. Course Objective
To have an outline of 8085 microprocessor
To develop assembly language programs for
various applications
To apply interfacing concepts

3. Microprocessor
An integrated circuit that contains all the functions of a central
processing unit of a computer.
The microprocessor can perform different sets of operations on the data it
receives depending on the sequence of instructions supplied in the given
program.
By changing the program, the microprocessor manipulates the data in
different ways as Instructions, Words, Bytes, etc.
They processed information 8-bits at a time. That’s why they are called ―8-bit
processors.
They can handle large numbers, but in order to process these numbers, they
broke them into 8-bit pieces and processed each group of 8-bits separately.
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8 bit processor – 8 bit data pipe
Intel 8085
Zilog Z80
Motrola 6800
16 bit processor – 16 bit data pipe
Intel 8086 / 88
Intel 80186 / 188
Intel 80286
Intel MCS-96
Zilog Z8000
Motrola 68000
VARIOUS TYPES OF MICROPROCESSOR
All Generation Intel Processor

5. 5
Microcontroller
A microcontroller is a compact integrated circuit designed to govern a specific operation in an embedded
system. A typical microcontroller includes a processor, memory and input/output (I/O) peripherals on a
single chip.
MICROPROCESSOR
1. Presence of External Peripheral
2. Bulky
3. No of external components needed are
more for the development of application.
4. High processing speed till 1 GHz
5. High Power consumption
MICROCONTROLLER
1. RAM,ROM,EEPROM embedded in it.
2. Compact
3. No of external components needed are less
for the development of application.
4. Low processing speed 8 MHz – 50 MHz
5. Low power consumption

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