TX-L55/LR552
IC BLOCK DIAGRAMS AND DESCRIPTIONS
TC7WU04FU (Buffer)
Truth Table
1
2
3
4
5
6
7
8
1A
3Y
2A
GND
2Y
3A
1Y
Vcc
A
L
H
Y
H
L
1A
1Y
2A
2Y
3A
3Y
GND
1
2
3
4
5
6
7
14
13
12
11
10
9
8
Vcc
6A
6Y
5A
5Y
4A
4Y
(TOP VIEW)
A
L
H
Y
H
L
Truth table
74HCU04F (Hex Inverter)
TC74HCT7007A (Hex Buffer)
1A
1Y
2A
2Y
3A
3Y
GND
1
2
3
4
5
6
7
14
13
12
11
10
9
8
Vcc
6A
6Y
5A
5Y
4A
4Y
(TOP VIEW)
A
L
H
Y
L
H
Truth table
G1
A1
A2
A3
A4
A5
A6
A7
A8
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
Vcc
G2
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
Z
Z
H
L
X :Don't care
Z :High impedance
G1
H
X
L
L
G2
X
H
L
L
An
X
X
H
L
OUTPUT
INPUTS
TC74VHC541FT(Octal Bus Buffer)
1
2
3
4
8
7
6
5
+
+
Vcc
OUT B
-IN B
+IN B
VDD
OUT A
-IN A
+IN A
TK15420(Operation Amplifier)
