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Компоненты Описание
74VCX16240DTR Просмотр технического описания (PDF) - ON Semiconductor
Номер в каталоге
Компоненты Описание
производитель
74VCX16240DTR
Low−Voltage 1.8/2.5/3.3V 16−Bit Buffer
ON Semiconductor
74VCX16240DTR Datasheet PDF : 9 Pages
1
2
3
4
5
6
7
8
9
OE1 1
O0 2
O1 3
GND 4
O2 5
O3 6
V
CC
7
O4 8
O5 9
GND 10
O6 11
O7 12
O8 13
O9 14
GND 15
O10 16
O11 17
V
CC
18
O12 19
O13 20
GND 21
O14 22
O15 23
OE4 24
48 OE2
47 D0
46 D1
45 GND
44 D2
43 D3
42 V
CC
41 D4
40 D5
39 GND
38 D6
37 D7
36 D8
35 D9
34 GND
33 D10
32 D11
31 V
CC
30 D12
29 D13
28 GND
27 D14
26 D15
25 OE3
Figure 1. 48
−
Lead Pinout
(Top View)
74VCX16240
1
OE1
48
OE2
25
OE3
24
OE4
D0:3
O0:3
D8:11
O8:11
D4:7
O4:7 D12:15
O12:15
One of Four
Figure 2. Logic Diagram
1
OE1
EN1
OE2
48
EN2
25
OE3
EN3
24
OE4
EN4
D0
47
D1
46
D2
44
D3
43
D4
41
D5
40
D6
38
D7
37
D8
36
D9
35
D10
33
D11
32
D12
30
D13
29
D14
27
D15
26
1
1
∇
1
2
∇
1
3
∇
1
4
∇
2
O0
3
O1
5
O2
6
O3
8
O4
9
O5
11
O6
12
O7
13
O8
14
O9
16
O10
17
O11
19
O12
20
O13
22
O14
23
O15
Figure 3. IEC Logic Diagram
Table 1. PIN NAMES
Pins
OEn
D0
−
D15
O0
−
O15
Function
Output Enable Inputs
Inputs
Outputs
TRUTH TABLE
OE1
D0:3
O0:3
OE2
D4:7
O4:7
OE3
D8:11
O8:11
OE4
L
L
H
L
L
H
L
L
H
L
L
H
L
L
H
L
L
H
L
L
H
X
Z
H
X
Z
H
X
Z
H
H = High Voltage Level;
L = Low Voltage Level;
Z = High Impedance State;
X = High or Low Voltage Level and Transitions Are Acceptable, for I
CC
reasons, DO NOT FLOAT Inputs
D12:15
L
H
X
O12:15
H
L
Z
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