Exercise : 1. Identify the fuction of the Ic based 2. Identify the output of the 74LS154 Ic will be activated if a and are both LOW while the data- select inputs are D = LOW, C = LOW, B = HIGH, and A = HIGH? %3D 3. Identify the output of the 74LS154 that will be activated if while the data-select inputs are all HIGH Inputs Outputs 1 Demultiplexer 2 3 4 5 Data GI inputs a G2 8 10 11 12 13 14 (74LS154) 15 D C BA MSB Data- select inputs LSB (a) Logic symbol

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Exercise :
1. Identify the fuction of the Ic based
2. Identify the output of the 74LS154 Ic will be activated if a and are both LOW while the data-
select inputs are D = LOW, C = LOW, B = HIGH, and A = HIGH?
%3D
3. Identify the output of the 74LS154 that will be activated if while the data-select inputs are
all HIGH
Inputs
Outputs
1
Demultiplexer
2
3
4
6.
Data
7
inputs
G2
8
9
10
11
12
13
14
(74LS154)
15 b-
D C BA
MSB
Data-
select
inputs
LSB
(a) Logic symbol
Transcribed Image Text:Exercise : 1. Identify the fuction of the Ic based 2. Identify the output of the 74LS154 Ic will be activated if a and are both LOW while the data- select inputs are D = LOW, C = LOW, B = HIGH, and A = HIGH? %3D 3. Identify the output of the 74LS154 that will be activated if while the data-select inputs are all HIGH Inputs Outputs 1 Demultiplexer 2 3 4 6. Data 7 inputs G2 8 9 10 11 12 13 14 (74LS154) 15 b- D C BA MSB Data- select inputs LSB (a) Logic symbol
Reference:
Function Table
Inputs
Outputs
G2 D
C B
10 11 12 13 14 15
G1
A
3
4
5
6.
7
8
9.
L
L
Η Η Η Η Η
нн
H
H
H
HHL
H.
LH HL
LH HH H H
H H H
L HH H H H H
н
H.
H.
H.
H.
H.
H.
L
L H
H HHH
ннн
H
H.
H.
H.
H.
H.
H.
L
H.
нн
L
L.
H L
нн
ннн
H
H
L
L
нннн
H
H.
H
H H L
1.
L
H H HH H H L
ннн
H
нннн ннн нн
L|HHH H H
H|HH H
H H H
L
н
H
H.
H.
H.
H
L
L
L
H.
H
H.
H.
H.
L
L
H H H
H.
нн
H.
H.
H.
H.
L H
L H
H
L
нн
ннн нн
L
H
H
H.
нннн
H.
ннн
H
L
ннн ннн
L Η Η Η Η Η Η Η
LH HH
H|H H
XH H H
X|H H H
х ннн ннн
H
L
L
нннн
H
H
H
нннн
нн
H
H H H
H H H
H H H
H H H
нн
H HHH
H.
H.
H
нн
H.
H HHH
H.
H.
X
хх
нннн
H
H.
H.
хх
ннн
H.
H.
H
хх
нннН
H
H
H H H
H = High Level, L = Low Level, X = Don't Care
HHHL HHHI
HHHH I
HHLIHHH HH
IHH EI
LLLL LLLLL LL-LHLH
LLLL -LLLL LHH
Transcribed Image Text:Reference: Function Table Inputs Outputs G2 D C B 10 11 12 13 14 15 G1 A 3 4 5 6. 7 8 9. L L Η Η Η Η Η нн H H H HHL H. LH HL LH HH H H H H H L HH H H H H н H. H. H. H. H. H. L L H H HHH ннн H H. H. H. H. H. H. L H. нн L L. H L нн ннн H H L L нннн H H. H H H L 1. L H H HH H H L ннн H нннн ннн нн L|HHH H H H|HH H H H H L н H H. H. H. H L L L H. H H. H. H. L L H H H H. нн H. H. H. H. L H L H H L нн ннн нн L H H H. нннн H. ннн H L ннн ннн L Η Η Η Η Η Η Η LH HH H|H H XH H H X|H H H х ннн ннн H L L нннн H H H нннн нн H H H H H H H H H H H H H нн H HHH H. H. H нн H. H HHH H. H. X хх нннн H H. H. хх ннн H. H. H хх нннН H H H H H H = High Level, L = Low Level, X = Don't Care HHHL HHHI HHHH I HHLIHHH HH IHH EI LLLL LLLLL LL-LHLH LLLL -LLLL LHH
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