MC74LCX16374
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2
48
1
CP1
OE1
47
2
D0
O0
46
3
D1
O1
45
4
GND
44
5
D2
O2
43
6
D3
O3
42
7
VCC
41
8
D4
O4
40
9
D5
O5
39
10
GND
38
11
D6
O6
37
12
D7
O7
36
13
D8
O8
35
14
D9
O9
34
15
GND
33
16
D10
O10
32
17
D11
O11
31
18
VCC
30
19
D12
O12
29
20
D13
O13
28
21
GND
27
22
D14
O14
26
23
O15
25
24
CP2
OE2
O0
D0
O1
D1
O2
D2
O3
D3
O4
D4
O5
D5
O6
D6
O7
D7
nCP
Q
D
nCP
Q
D
nCP
Q
D
nCP
Q
D
nCP
Q
D
nCP
Q
D
nCP
Q
D
nCP
Q
D
CP1
OE1
O8
D8
O9
D9
O10
D10
O11
D11
O12
D12
O13
D13
O14
D14
O15
D15
nCP
Q
D
nCP
Q
D
nCP
Q
D
nCP
Q
D
nCP
Q
D
nCP
Q
D
nCP
Q
D
nCP
Q
D
CP2
OE2
1
48
24
25
2
47
3
46
5
44
6
43
8
41
9
40
11
38
12
37
13
36
14
35
16
33
17
32
19
30
20
29
22
27
23
26
Figure 1. Pinout: 48Lead
(Top View)
Figure 2. Logic Diagram
Table 1. PIN NAMES
Pins
Function
OEn
Output Enable Inputs
CPn
Clock Pulse Inputs
D0D15
Inputs
O0O15
Outputs
TRUTH TABLE
Inputs
Outputs
Inputs
Outputs
CP1
OE1
D0:7
O0:7
CP2
OE2
D8:15
O8:15
↑
L
H
↑
L
H
↑
L
↑
L
X
O0
L
X
O0
X
H
X
Z
X
H
X
Z
H = High Voltage Level
L = Low Voltage Level
Z = High Impedance State
↑ = LowtoHigh Transition
X = High or Low Voltage Level and Transitions Are Acceptable; for ICC reasons, DO NOT FLOAT Inputs