This document discusses the applications of microprocessors in various devices and systems. It begins by listing common applications such as mobile phones, computers, traffic control systems, and medical devices. It then provides more detailed descriptions of how microprocessors are used in coffee makers, remote controls, dishwashers, watches, central heating systems, security systems, microwaves, car remotes, and motorcycle helmets. The document also discusses how the low cost and small size of microprocessors make them useful for instrumentation, control systems, communication equipment, and office automation. Finally, it lists some major microprocessor manufacturers and provides an overview of the features and pins of the 8085 microprocessor.

1. K.N.BALUPRITHVIRAJ
ASSISTANT PROFESSOR
DEPARTMENT OF EIE
KONGU ENGINEERING COLLEGE
PERUNDURAI, ERODE

67.  There are a lot of applications of Microprocessor in general life. Some of the
applications are given below:
 Mobile Phones
 Digital Watches
 Washing Machine
 Computer
 Lighting Control
 Traffic Control
 LAPTOP
 Modems
 Power Stations
 Television
 CD Player
 Multimeter
 CRO
 Wave generator
 More applications in medical

68.  Coffee Makers
 A coffee maker’s microprocessor executes its programming
to consistently and correctly deliver a precise volume of
water at an exact temperature perfect for brewing coffee.
 Remote controls
 The first TV remote controls used a beam of light to conduct
basic functions: TV on/off, change channels, and mute.
Microprocessors enhance the remote control with a multitude
of pre-programmed options such as: sleep timer,
last/previous, TV settings, guide, etc. Remote controls are
also designed to work with a specific TV, but microprocessors
have made the universal remote possible.

69.  Dishwashers
 Modern dishwashers use microprocessors to increase
their functionality. An increased number of options has
led to specific types of run cycles. Options including the
mixture of soap and water, water distribution, cleaning
intensity, timing, and drying temperature.
 Watches
 Microprocessors enhanced the wristwatch from keeping
time to a multi-functional machine. Microprocessor-
based watches can sync with smartphones, download
applications, read GPS coordinates, act as an alarm
clock or timer, and sense temperature. Further, they add
to the Millennial’s culture of health by tracking exercise,
diet, and cardiovascular health.

70.  Central Heating System
 The microprocessor in a central heating system
interprets the measurements taken from the temperature
sensors. Heating has become more exact through the
constant regulation of climate control. Microprocessors
have increased efficiency by measuring and minimizing
energy output.
 Security Systems
 Security systems run throughout the house via a myriad
of systems (motion sensors, locks, cameras, alarms) to
protect from home invasion. The microprocessor at the
central hub consistently processes the data being sent
and waits for an “emergency” code. Security can be
linked and monitored by computer or smartphone,
assuring optimum safety.

71.  Microwaves
 Sophisticated microprocessors expand the microwaves daily
use. Now, they reheat according to food, weight, and
desired temperature. Pre-programmed options remove the
guesswork for defrosting and heating times.
Microprocessors offer temperature consistency and remove
hot spots.
 Car remote
 People are accustomed to unlocking and locking their
vehicles through the use of a car remote. The car remote
functions through a microprocessor allowing it to: locate,
lock from a distance, open the trunk, and start the vehicle.
High-end cars are now offering an option to connect
directly to a smartphone, eliminating the need for a car
remote and consolidating functions to one device.

72.  Motorcycle Helmets
 Using an array of cameras, sensors, and
microprocessors, helmets can communicate with the
motorcycle to create an innovative heads-up display
(HUD) in the visor. The Skully AR-1 telemetry helmet
has been binding technology with safety to minimize
accidents.

73.  The availability of low cost, low power and small
weight, computing capability makes it useful in
different applications. Now a days, a microprocessor
based systems are used in instructions, automatic
testing product, speed control of motors, traffic light
control , light control of furnaces etc. Some of the
important areas are mentioned below:

74.  Instrumentation:
 it is very useful in the field of instrumentation. Frequency
counters, function generators, frequency synthesizers,
spectrum analyses and many other instruments are available,
when microprocessors are used as controller. It is also used in
medical instrumentation
 Control:
 Microprocessor based controllers are available in home
appliances, such as microwave oven, washing machine etc.,
microprocessors are being used in controlling various
parameters like speed, pressure, temperature etc. These are
used with the help of suitable transduction.

75.  Communication:
 Microprocessors are being used in a wide range of communication
equipments. In telephone industry, these are used in digital telephone sets.
Telephone exchanges and modem etc. The use of microprocessor in
television, satellite communication have made teleconferencing possible.
Railway reservation and air reservation system also uses this technology.
LAN and WAN for communication of vertical information through
computer network.
 Office Automation and Publication:
 Microprocessor based micro computer with software packages has changed
the office environment. Microprocessors based systems are being used for
word processing, spread sheet operations, storage etc. The microprocessor
has revolutionize the publication technology.

76.  INTEL
 SAMSUNG
 QUALCOMM
 BROADCOM
 MICRON TECHNOLOGY
 TEXAS INSTRUMENTS
 TOSHIBA
 NXP

77.  Altera
 AMD
 ARM
 ATMEL
 FAIRCHILD SEMICONDUCTOR
 FREESCALE SEMICONDUCTOR
 FUJITSU
 HITACHI
 RENESAS ELECTRONICS
 TOSHIBA
 WESTERN DIGITAL
 ZILOG
 NATIONAL SEMICONDUCTORS
 XILINX

78. Features:
 It is a programmable device.
 It has 24 I/O programmable pins like PA,PB,PC (3-8
pins).
 T T L compatible.
 Improved dc driving capability

80.  Data bus(D0-D7):These are 8-bit bi-directional
buses, connected to 8085 data bus for transferring
data.
 CS: This is Active Low signal. When it is low, then
data is transfer from 8085.
 Read: This is Active Low signal, when it is Low read
operation will be start.
 Write: This is Active Low signal, when it is Low
Write operation will be start.

82. RESET: This is used to reset the device. That means clear
control registers.
PA0-PA7:It is the 8-bit bi-directional I/O pins used to send the
data to peripheral or
or to receive the data from peripheral.
PB0-PB7:Similar to PA
PC0-PC7:This is also 8-bit bidirectional I/O pins. These lines
are divided into two groups.
1. PC0 to PC3(Lower Groups)
2. PC4 to PC7 (Higher groups)
These two groups working in separately using 4 data’s.