INSTRUCTION MANUAL
FOR
ENCODER & DECODER CIRCUIT
MODEL NO. ME 718
MARS" nade Encoder & Decoder Circuits has been designed to study the following
Decimal to BCDEncoder
Binary to Gray Code Convertor
BCD to Decimal Decoder
BCD to 7-Segment Decoder.
The Instrument comprises of
thfe
following built in parts
Fixed output DC Regulated power supply of 5V
switches are provided on t front parel"
Ten Logic inputs "o"&"1" selectable through SPDT
Ten Logic output indicatorsace provided op the front panel
to observe the statys.
nections are brought out
IC's 7447,74147, 7442 &7486 are mounted onthe front panel and impe
on sockets.
output gn sockets provided on
with is the front panel.
One 7-Segment Display
The front panel of the instrumeris printed circuit board
(PCB). All the IC's are placed on the
front panel & important connectfons are brought out onsockets.
THEORY
ne
up of gates &inverters. An example of this type is
Combinational logic circuits are digital circuits made It
multiplexers, comparators and codeconvertors.
exclusive OR circuit. The most common type are decoders, are completely available
in mostcases, these functional logic circuits
these
not very difficult to design circuits, but the proper
The job ofthe user is identify and select
integrated circuits. This eliminates the need to design them.
as
devices
the input to the decoder
is a parajlel 4-Bit
used type of decoder is the BCD to.Decimal Decoder,
Awidely representing decimal
numbers
1001 and the circuit provides ten discrete outputs
through
Binary number from 0000 to operate a lighted number display
decoder is generaly used
The output of such a
Othrough 9.
decimal digit '0'
to represent the
are used digital system
in
codes that and Gray
There is a wide variety to binary excess-3 code
BCD),
used codes are
8-4-2-1 binary code (Natural hexadecimal,
'9. Some of most commonly codes. other codes,
such as octal,
Unrough the decimal digits in these
bits are required to represent
PAGE NO 1/4 DOC 718
c00e. Four REV 02, DT 23 05 0
elc, are also common.
FOR
ENCODER & DECODER CIRCUIT
MODEL NO. ME 718
MARS" nade Encoder & Decoder Circuits has been designed to study the following
Decimal to BCDEncoder
Binary to Gray Code Convertor
BCD to Decimal Decoder
BCD to 7-Segment Decoder.
The Instrument comprises of
thfe
following built in parts
Fixed output DC Regulated power supply of 5V
switches are provided on t front parel"
Ten Logic inputs "o"&"1" selectable through SPDT
Ten Logic output indicatorsace provided op the front panel
to observe the statys.
nections are brought out
IC's 7447,74147, 7442 &7486 are mounted onthe front panel and impe
on sockets.
output gn sockets provided on
with is the front panel.
One 7-Segment Display
The front panel of the instrumeris printed circuit board
(PCB). All the IC's are placed on the
front panel & important connectfons are brought out onsockets.
THEORY
ne
up of gates &inverters. An example of this type is
Combinational logic circuits are digital circuits made It
multiplexers, comparators and codeconvertors.
exclusive OR circuit. The most common type are decoders, are completely available
in mostcases, these functional logic circuits
these
not very difficult to design circuits, but the proper
The job ofthe user is identify and select
integrated circuits. This eliminates the need to design them.
as
devices
the input to the decoder
is a parajlel 4-Bit
used type of decoder is the BCD to.Decimal Decoder,
Awidely representing decimal
numbers
1001 and the circuit provides ten discrete outputs
through
Binary number from 0000 to operate a lighted number display
decoder is generaly used
The output of such a
Othrough 9.
decimal digit '0'
to represent the
are used digital system
in
codes that and Gray
There is a wide variety to binary excess-3 code
BCD),
used codes are
8-4-2-1 binary code (Natural hexadecimal,
'9. Some of most commonly codes. other codes,
such as octal,
Unrough the decimal digits in these
bits are required to represent
PAGE NO 1/4 DOC 718
c00e. Four REV 02, DT 23 05 0
elc, are also common.
