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Hitachi MB-6890 Service Manual page 10

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

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