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8. Timing chart
Ⅰ.TL-7400 Timing Chart
STROBE
EX SYNC In
DATA
PORTC
DATA
PORTA
DATA
DATA
PORTD
240nsec
±40nse
28 clock
D
2
6
D
2
8
D
3
0
D
3
2
D
3
4
D
3
6
D
1
2
2
D
1
2
4
D
1
2
6
S
1
S
3
S
3
6
9
1
S
3
6
9
3
S
3
6
9
5
S
3
6
9
7
S
3
6
9
9
D
2
7
D
2
9
D
3
1
D
3
3
D
3
5
D
3
7
D
1
2
3
D
1
2
5
D
1
2
7
S
2
S
4
S
3
6
9
2
S
3
6
9
4
S
3
6
9
6
S
3
6
9
8
S
3
7
0
0
D
2
7
D
2
9
D
3
1
D
3
3
D
3
5
D
3
7
S
7
3
9
9
S
7
3
9
7
S
3
7
0
9
S
3
7
0
7
S
3
7
0
5
S
3
7
0
3
S
3
7
0
1
Optical Black Output
(48 pixels)
Dummy Signal (76 pixels)
1 Line Output Period (1966 pixels(min))
D
2
6
D
2
8
D
3
0
D
3
2
D
3
4
D
3
6
S
7
4
0
0
S
7
3
9
8
S
3
7
1
0
S
3
7
0
8
S
3
7
0
6
S
3
7
0
4
S
3
7
0
2
LINE VALID
D
1
2
3
D
1
2
5
D
1
2
7
D
1
2
2
D
1
2
4
D
1
2
6