Mb74Ls00; Mb74Ls08; Mb74Ls125A; Mb74Ls14 - Sony HB-501P Service Manual

MB74LS00 (FUJITSU)
SN74LS00N (Tl)
TTL 2-INPUT POSITIVE-NAND GATE
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il4|
[ii]
W\
R Rol fil-B
Vcc
( + 5V)
GND
HI LU LU LU 1_5J L®J LU
Y = A-B = A + B
0; LOW LEVEL
1; HIGH LEVEL
A B;
0_ _0
0 1 1
J_ 0 1
1 1
0
MB74LS08 (FUJITSU)
SN74LS08N (Tl)
TTL 2-INPUT POSITIVE-AND GATE
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Y = A • B - A + B
A y_
0_
0
0
0^
0
1
0_
_0
1 1 1
0;LOW LEVEL
1 ; HIGH LEVEL
MB74LS125A (FUJITSU)
SN74LS1 25 AN (Tl)
TTL BUS BUFFER GATES WITH 3-STATE OUTPUT
— TOP VIEW —
FI FI FI Fl.Fpl [?1 I?1
Vcc
(+5V)
s
IS3
J
ft^~| GND
lii "lil in lii
ill
'urm
G A
Y
0
0 0
0 1 1
1
X
HI- Z
0 ; LOW LEVEL X;DONT CARE
1 ;HIGH LEVEL HI-Z;HIGH IMPEDANCE
MB74LS14 (FUJITSU)
SN74LS14N (Tl) .
TTL SCHMITT TRIGGER INVERTER
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9
Y= A
V
IN
VOUT
SN74LSI4N--0.8 1.6V
MB74LS1 57 (FUJITSU)
SN74LS1 57N (Tl)
TTL 2-LINE-T0-1 -LINE DATA SELECTOR/MULTIPLEXER
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INH YO Y1 YC XO XI XC
IN IN IN OUT IN IN OUT
|?6iri5|[i4l|T51ri2|fiT|io||9l
Vcc
H-5V)
ItTi LtA
GND
LU LAJ HI l±J Lil HI m' 0
A VO VI VC WO W1 wc
IN IN IN OUT IN IN OUT
0; LOW LEVEL
1 ; HIGH LEVEL
X; DON'T CARE
[ CONT. IN
ON
CHANNEL
INH A
0
0
0
0
1 1
1
x i
GND
MB74LS245 (FUJITSU)
SN74LS245N (Tl)
TTL BILATERAL SCHMITT TRIGGER BUS TRANSCEIVERS WITH 3-STATE OUTPUT
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DIR
in
[T
w
—
Vcc
(+ 5Vi
P
A1
\
2
_
19jEN in
A2[T 18] B1
A3[4
17]B2
A4[T
16] 83
A5[F
Hi84
a6E
14]b5
A7[T
j|]B6
abE
[|]B7
Qo
GND
il]B8
_
EN
DIR OPERATION
0 0 B to A
0 1 A to B
1 X HI -Z
0;LOW LEVEL
1 i HIGH LEVEL
XI DON'T CARE.
HI-Z;HIGH IMPEDANCE
EN
DIR
MB74LS32 (FUJITSU)
SN74LS32N (Tl)
TTL 2-INPUT POSITIVE-OR GATE
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4-2
HB-501 P/501 F