Transcript Dekoder, Enkoder, 7Segment

Elektronika dan Instrumentasi:
Elektronika Digital 3 –
Enkoder, Dekoder, 7 segment
Dimas Firmanda Al Riza
Materi Kuliah
Dekoder dan Enkoder
A0
O0
A1
O1
A2
O2
A3
ENCODER
A4
A5
A6
A7
ONLY ONE INPUT
ACTIVATED AT A TIME
BINARY CODE OUTPUT
A0
O0
A1
O1
A2
O2
DECODER
O3
O4
O5
O6
O7
BINARY CODE INPUT
ONLY ONE OUTPUT
ACTIVATED AT A TIME
Binary Dekoding
Dekoder adalah suatu rangkaian logika yang memiliki sedikit masukan dan
banyak keluaran.
1 to 2 Dekoder
2 to 4 Dekoder
Rangkaian 2 to 4 Dekoder
3 to 8 Dekoder
3 to 8 Dekoder
Rangkaian 3 to 8 Dekoder
Enkoder Binary
ELECTRONIC ENCODER - DECIMAL
TO BCD BCD output
Decimal input
7
5
3
00
10
0
11
Decimal
to
BCD
Encoder
0
• Encoders are available in IC form.
• This encoder translates from
decimal input to BCD output.
10 line to 4 line Encoder
10 line to 4 line Encoder
BIN AR Y ( BC D )
D E C IMA L
8
EN C O D E R
9 5V
74147
8 5V
7 5V
6 5V
5 5V
4 5V
3 5V
2 5V
1 5V
I9
I8
I7
I6
I5
I4
I3
I2
I1
A3
A2
A1
A0
4
2
1
4 line to 10 line Decoder
D E C IMA L
9
8
DE CO DE R
BIN AR Y ( BC D )
74LS42
8 0V
4 0V
2 0V
1 0V
A3
A2
A1
A0
9
8
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
DECODERS: BCD TO 7-SEGMENT
DECODER/DRIVER
Decimal output
LED
BCD input
01
00
10
1
BCD-to7-Segment
Decoder/
Driver
Electronic decoders are available in IC form.
• This decoder translates from BCD to decimal.
• Decimals are shown on an 7-segment LED displa
• This IC also drives the 7-segment LED display.
•
TEST
Q #5#1- What is the decimal output from the decoder that
#2#3#4appears on the 7-segment display?
Answer: 9
3
0
7
6
BCD input
Decimal output
010 100 0
10 0110
BCD-to7-Segment
Decoder/
Driver
?
BC D -T O -SE VE N S EG ME N T D EC O D ER D R IVE R
V+
abc de f g .
74LS47
A3
A2
A1
A0
5V
test
RBI
g
f
e
d
c
b
a
RBO
7-segmen display
Rangkaian Pengubah kode BCD ke LED 7-segmen
Thankyou