TC74VCXH162373FT Datasheet, PDF (3/13 Pages) Toshiba Semiconductor – Low-Voltage 16-Bit D-Type Latch with Bushold

Truth Table
Inputs
1OE
1LE
H
X
L
L
L
H
L
H
1D1-1D8
X
X
L
H
Outputs
1Q1-1Q8
Z
Qn
L
H
TC74VCXH162373FT
Inputs
Outputs
2OE
2LE
2D1-2D8
2Q1-2Q8
H
X
X
Z
L
L
X
Qn
L
H
L
L
L
H
H
H
X: Don’t care
Z: High impedance
Qn: Q outputs are latched at the time when the LE input is taken to a low logic level.
System Diagram
48
1LE
1D1
1D2
1D3
1D4
1D5
1D6
1D7
1D8
47
46
44
43
41
40
38
37
D
D
D
D
D
D
D
D
LE Q LE Q LE Q LE Q LE Q LE Q LE Q LE Q
1
1OE
25
2LE
2
3
5
6
8
9
11
12
1Q1
1Q2
1Q3
1Q4
1Q5
1Q6
1Q7
1Q8
2D1
2D2
2D3
2D4
2D5
2D6
2D7
2D8
36
35
33
32
30
29
27
26
D
D
D
D
D
D
D
D
LE Q LE Q LE Q LE Q LE Q LE Q LE Q LE Q
24
2OE
13
2Q1
14
2Q2
16
2Q3
17
2Q4
19
2Q5
20
2Q6
22
2Q7
23
2Q8
3
2007-10-19