Datasheet

SCLS397F − APRIL 1998 − REVISED APRIL 2005
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
description/ordering information (continued)
These devices are fully specified for partial-power-down applications using I
off
. The I
off
circuitry disables the
outputs, preventing damaging current backflow through the devices when they are powered down.
FUNCTION TABLE
INPUTS
OUTPUT
G
SELECT
DATA
OUTPUT
Y
G
SELECT
A/B
A B
Y
H X X X L
L L L XL
L L H XH
L H X LL
L H X H H
logic diagram (positive logic)
Pin numbers shown are for the D, DB, DGV, J, NS, PW, and W packages.
2
3
5
6
11
10
14
13
15
1
G
A/B
4B
4A
3B
3A
2B
2A
1B
1A
4
7
9
12
1Y
2Y
3Y
4Y