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TC74HC 138F
(TC40H138FN)*l
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CN-1
CN-2
CN-3
CN-4
CN-5
CN-6
CN-7
CN-8
CN-9
CN-1 0
CN-11
CN-12
CN-13
CN-14
CN-15
CN-16
CN-17
CN-18
CN-19
CN-20
CN-21
CN-22
CN-23
CN-24
CN-25
CN-26
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c
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c
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c
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CN-32
CN-33
CN-34
CN-35
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*1: On account of parts procurement situation, the TC40H138FN was used as a substitution of the
TC74HC138F
for
some
of
CE-201 M and CE-202M in earlier productions.
When the TC40H-
138FN
on
is in failure,
either
the TC40H138FN or TC74HC138F can be used as a
replacement.
But when the TC74HC138F is in
use,
it has to be replaced by the
TC74HC138F,
not the
TC-
40H138FN
which may impede proper operation due to variation in access time by the RAM chip
used.
14. CE-202M CIRCUIT DIAGRAM/PARTS LAYOUT CHART
(PCOS TYPE)
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