Datasheet

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DESCRIPTION/ORDERING INFORMATION (CONTINUED)
1OE
1A1
1A2
1A3
1A4
1Y1
1Y2
1Y3
1Y4
1
47
46
44
43
2
3
5
6
2OE
2A1
2A2
2A3
2A4
2Y1
2Y2
2Y3
2Y4
48
41
40
38
37
8
9
11
12
3OE
3A1
3A2
3A3
3A4
3Y1
3Y2
3Y3
3Y4
25
36
35
33
32
13
14
16
17
4OE
4A1
4A2
4A3
4A4
4Y1
4Y2
4Y3
4Y4
24
30
29
27
26
19
20
22
23
SN74LVCH16240A
16-BIT BUFFER/DRIVER
WITH 3-STATE OUTPUTS
SCAS566H – MARCH 1996 – REVISED MARCH 2005
Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors
with the bus-hold circuitry is not recommended.
This device is fully specified for partial-power-down applications using I
off
. The I
off
circuitry disables the outputs,
preventing damaging current backflow through the device when it is powered down.
FUNCTION TABLE
(EACH 4-BIT BUFFER)
INPUTS
OUTPUT
Y
OE A
L H L
L L H
H X Z
LOGIC DIAGRAM (POSITIVE LOGIC)
2