Sn74Ls123Ns - Sony DSR-300P Service Manual

IC
SN74LS123NS (TI)FLAT PACKAGE
SN74LS123NS-E05
TTL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS WITH DIRECT RESET
—TOP VIEW—
R C
V
CC R
D
16 15 14 13 12 11
V
CC
R
Q D
Q
Q
Q
R
D
1 2 3 4 5 6
A B R
D
C
OUTPUT PULSE WIDTH
6 7
V
C CR CC
9
5
Q
R
10
C
12
Q
R
D
V
CC
11
R
C
14 15
C CR
V
CC
1
13
Q
2
R
C
4
Q
R
D
3
SN74LVC245APW-E05 (TI)
C-MOS BILATERAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
—TOP VIEW—
DIR 1 V 20
IN DD
EN
A1 2 19
IN
A2 3 18 B1
A3 4 17 B2
A4 5 16 B3
A5 6 15 B4
A6 7 14 B5
A7 8 13 B6
A8 9 12 B7
10 GND 11 B8
B1 B2
18 17
19
EN
1
DIR
2 3
A1 A2
9-44
B A
10 9
INPUTS OUTPUTS
Q
R A B Q
D
0 x x 0 1
x
1 x 0 1
x x 0 0 1
1 0
0 : LOW LEVEL
1 1
GND 1 : HIGH LEVEL
0 1
7 8 x
: DON'T CARE
V
CC
R
700
'123 : T = 0.28 (1+ ) CR
W
R
700
'L123 : T = 0.33 (1+ ) CR
W
R
700
'123 : T = 0.25 (1+ ) CR
W
R
700
'L123 : T = 0.29 (1+ ) CR
W
R
'LS123 : T = 0.45CR
W
2 18
DIR
17
3
16
4
5 15
A B
6 14
7 13
DIR 12
8
11
9
DIR EN
1 19
EN
DIR OPERATION
0 0 B to A
0 1 A to B
1 x HI-Z
0 : LOW LEVEL
1 : HIGH LEVEL
x : DON'T CARE
HI-Z : HIGH IMPEDANCE
B3 B4 B5 B6 B7 B8
16 15 14 13 12 11
4 5 6 7 8 9
A3 A4 A5 A6 A7 A8
SN74LVT16245ADGGR-E05 (TI)
C-MOS 16-BIT BIDIRECTIONAL TRANSCEIVER
—TOP VIEW—
12
1B8
1OE
1DIR 1 48
IN IN 11
1B7
9
1B1 2 47 1A1
I/O I/O
1B6
8
1B5
1B2 3 46 1A2
I/O I/O
6
1B4
5
4 GND GND 45
1B3
3
1B2
1B3 5 44 1A3
I/O I/O
2
1B1
1B4 6 43 1A4
I/O I/O
23
7 V V 42
DD DD 2B8
22
2B7
1B5 8 41 1A5
I/O I/O
20
2B6
19
1B6 9 40 1A6
I/O I/O
2B5
17
2B4
10 GND GND 39
16
2B3
1B7 11 38 1A7 14
I/O I/O
2B2
13
1B8 12 37 1A8
I/O I/O 2B1
2B1 13 36 2A1
I/O I/O
1
1DIR
48
2B2 14 35 2A2
I/O I/O
1OE
15 GND 34
24
2DIR
2B3 16 33 2A3 25
I/O I/O
2OE
2B4 17 32 2A4
I/O I/O
18 V V 31
DD DD
2B5 19 30 2A5
I/O I/O
xOE
2B6 20 29 2A6
I/O I/O
0
21 GND GND 28
0
1
2B7 22 27 2A7
I/O I/O
0 : LOW LEVEL
2B8 23 26 2A8
I/O I/O
1 : HIGH LEVEL
2OE
2DIR 24 25
IN IN
x : DON'T CARE
HI-Z : HIGH IMPEDANCE
1
1DIR
48
1OE
47
1A1
2
1B1
46
1A2
3
1B2
44
1A3
5
1B3
43
1A4
6
1B4
41
1A5
8
1B5
40
1A6
9
1B6
38
1A7
11
1B7
37
1A8
12
1B8
24
2DIR
25
2OE
36
2A1
13
2B1
35
2A2
14
2B2
33
2A3
16
2B3
32
2A4
17
2B4
30
2A5
19
2B5
29
2A6
20
2B6
27
2A7
22
2B7
26
2A8
23
2B8
37
1A8
38
1A7
40
1A6
41
1A5
43
1A4
44
1A3
46
1A2
47
1A1
26
2A8
27
2A7
29
2A6
30
2A5
32
2A4
33
2A3
35
2A2
36
2A1
INPUTS
OUTPUTS
xDIR
0
BUS B DATA TO BUS A
1
BUS A DATA TO BUS B
x
HI-Z
DSR-300/P(J,E)/V2