MC74LCX16240_12 Datasheet, PDF (2/8 Pages) ON Semiconductor – Low-Voltage CMOS 16-Bit Buffer

MC74LCX16240
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. Pinout: TSSOP−48 (Top View)
Table 1. PIN NAMES
Pins
OEn
D0−D15
O0−O15
Function
Output Enable Inputs
Inputs
Outputs
1
OE1
48
OE2
D0:3
D4:7
25
OE3
24
OE4
O0:3 D8:11
O8:11
O4:7 D12:15
O12:15
One of Four
Figure 2. Logic Diagram
TRUTH TABLE
OE1
D0:3
O0:3
OE2
D4:7
O4:7
OE3
D8:11
O8:11
OE4 D12:15
L
L
H
L
L
H
L
L
H
L
L
L
H
L
L
H
L
L
H
L
L
H
H
X
Z
H
X
Z
H
X
Z
H
X
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
O12:15
H
L
Z
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