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74VCX16244DT View Datasheet(PDF) - ON Semiconductor

Part NameDescriptionManufacturer
74VCX16244DT Low-Voltage 1.8V/2.5V/3.3V 16-Bit Buffer With 3.6 V−Tolerant Inputs and Outputs (3−State, Non−Inverting) ON-Semiconductor
ON Semiconductor ON-Semiconductor
74VCX16244DT Datasheet PDF : 10 Pages
1 2 3 4 5 6 7 8 9 10
OE1 1
O0 2
O1 3
GND 4
O2 5
O3 6
VCC 7
O4 8
O5 9
GND 10
O6 11
O7 12
O8 13
O9 14
GND 15
O10 16
O11 17
VCC 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 VCC
41 D4
40 D5
39 GND
38 D6
37 D7
36 D8
35 D9
34 GND
33 D10
32 D11
31 VCC
30 D12
29 D13
28 GND
27 D14
26 D15
25 OE3
Figure 1. 48−Lead Pinout
(Top View)
74VCX16244
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
L
L
L
L
L
L
L
L
L
L
H
H
L
H
H
L
H
H
H
X
Z
H
X
Z
H
X
Z
H = High Voltage Level;
L = Low Voltage Level;
Z = High Impedance State;
X = High or Low Voltage Level and Transitions Are Acceptable, for ICC reasons, DO NOT FLOAT Inputs
OE4
L
L
H
D12:15
L
H
X
O12:15
L
H
Z
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