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Hitachi MB-6890 Service Manual page 33

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(4-Line
I6-Line
Decoder/Demulb
to
with
iplexer
Open
Collector
ww
A
VCC
B
C
D
G:
Gr
EEEE BIEIIIBH EI
ABCD IS Z
0
"
IIBBIIEIB EIHIEUB
Go
Gu
Cz
Gu
Ga
Gs
Qs
if
5-35
IUPUt
Q.Q,Q,IQ1i Q¢
G,G,D
c
B
A
ILL
L
L
L
LL
I
LLLL
LHI
L
L'L
L
L
L
L'H
LLLLHH
L'
L
L
L
H
L
L
L
L
H
L
H
L
L
L
H
H
L
H
L
L
L
H
H
L
L
H
L
L
L
V
I
I
_IL-I"I'-I I"|||II|Jll|'~ lIlIIII
ruvvu
L
Lux.
H
L
_
LLHLH'H
LLYHHLL
LLHHLH
LLHHHLI
LLHHHH
Lnxxxx
H
L
X
X
XIX
H
H
X
X
X
X
All manuals and user guides at all-guides.com
Output)
Oni
Ou
Ou
Qu
Qu
.
I
Ga
C1
Cn
GND
(HD14IS9P)
s-I2
'rrunh
Table
Output
QJQtQJQnQ.QJ
Q, Q.Q1Q.
Q
.
I
L'
L
L
L
L
L
I
I
I
I
I
I
I
L
L
I
'Z
5-36
4
line-16
:
Qutput
Q O Q 1 5
Therefore,
to
operate
decoder.
I
I-I'
I
Lo
I-
IL
Either
of
becomes
H
1
line
d9CgdEr_
is
collector.
open
is
G1=G2
L
required
=
and
is
G1
G2
"H",
the
without
input
state
to
output
(A-D)
_

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