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Hitachi MB-6890 Service Manual page 10

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5.
in
IC's
use.
No.
Type
HDeso9P/MCeao9L
Mpu
Hmssossp
L.Sl
HD4ea21P
HD4sssoP
HM4716AP-1
RAM
/mnzsasc-ssc
uPD2364C-331
ROM
uPD2364C-332
yPD2332C-328
HDHLSODP
" D 7 L S " 2 P
HDNLSMP
HD74LS05P
HD74LS08P
HD74LS1OP
HD74LS11P
H D 7 4 ~ 5 1 4 P
HD74LS30P
HDm.S32P
HD14Ls74AP
HD14LSseP
HD74LS93P
HD74LSI25AP
HD14LS13sP
HD14LS139P
Hm4LS1sw
HD74LS1_53P
Q
circuit
no.
1C1
rcse
Q
LCSS
ICS4
Icse,
1Cs1
Icss
1Cs9
xcsz
[css
1Cso,1Cs1
IC54'
IC65'
IC66
IC57
ICss,1Cs9
Icvo
IC71
IC12, IC73,
IC75
IC14,
1C1s,
Qrcs
IC4
I C S
IClO7
1C2s, rczs,
IC12s
IC47,
IC129,
IC145
Icaa,
IC34, 1C4e,
ICQ4
[C142
IC23,
IC31,
1C91
IC44,
IC100
IC22,
ICIOS
lC95,
xczs,
Icas,
xC49,
IC92
IC96, IC136,
IC143
1C14s
1C21
rC4s
Qrclss
[Cm
rcso,
ICIO4
1C29, 1C3z, IC97,
1Cl44]
IC14,
IC1s, ICI7,
IC1s
Icso,
xCs3,
xC93,
IC99
1C1o3
IC126.
ICl30
Azcss,
[C131
1C1s, IC101.
rC1o2
'ICl22
1C123,
rC124
IC\34
ICQ4,
me
Q1C12.
IC13
ICU.
IC137
'
Q
xC9o
1C112
Q
3
function
Pf C@SSif19
central
CRTC
Q
PIA
ACIA
RAM
BASIC
Rom
BASIC
Rom
BASIC,
monitoraom
\characters,graphic
_
2
NAND
lnput
gate
2
input
NOR
gate
inverter
inverter
collector
open
2
input
NAND
gate
3
input
AND
gate
3
input
AND
gm?
Q
Stghmitt
inverter
trigger
S
input
AND
gate
2
input
NOP-
gate
flip
D
flop
type
qate
eX_Or
4
bit
2
decimalcounter
'
bus
buffer
gate
d&m'dQr_Q/demltiplexer
_
»~
deselecwr/multiplexer
QQ
~
Unit
Q
Q
Q
ROM
Q
V
Q
Q
Q
Q
Q
!
Q
Q
Q
1

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