DTR-4.6
IC BLOCK DIAGRAMS AND DESCRIPTIONS
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
74HC04F(Hex Inverter)
TC74VHC541FT/T541AFT(Octal buss buffer)
INPUTS
OUTPUT
G1
H
X
L
L
G2
X
H
L
L
An
X
X
H
L
Z
Z
H
L
Yn
X:Don't care
Z:High Impedance
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
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
SELECT
1A
1B
1Y
2A
2B
2Y
GND
Vcc
ST
4A
4B
4Y
3A
3B
3Y
A S G
B
Y
A
B
Y Y B
A
B
Y
A
TC74VHC157FT(Quad 2-channel Multiplexer)
ST
SELECT
A
B
H
X
X
X
L
L
L
L
X
L
L
L
H
X
H
L
H
X
L
L
L
H
X
H
H
X:Don't care
OUTPUT
INPUTS
1
2
3
4
8
7
6
5
1A
3Y
2A
GND
Vcc
1Y
3A
2Y
TC7WU04FU(3 Inverter)
Truth Table
Truth Table
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
