74HC533 Datasheet, PDF (4/7 Pages) NXP Semiconductors – Octal D-type transparent latch; 3-state; inverting

Philips Semiconductors
Octal D-type transparent latch; 3-state;
inverting
Product specification
74HC/HCT533
Fig.4 Functional diagram.
FUNCTION TABLE
OPERATING ^INPUTS
MODES _{OE LE Dn}
enable and L H L
read register L H H
(transparent
mode)
latch and
LL l
read register L L h
latch register H X X
and disable H X X
outputs
INTERNAL
LATCHES
L
H
OUTPUTS
Q₀ TO Q₇
H
L
L
H
H
L
X
Z
X
Z
Notes
1. H = HIGH voltage level
h = HIGH voltage level one set-up prior to the
HIGH-to-LOW LE transition
L = LOW voltage level
l = LOW voltage level one set-up prior to the
HIGH-to-LOW LE transition
X = don’t care
Z = high impedance OFF-state
Fig.5 Logic diagram (one latch).
December 1990
Fig.6 Logic diagram.
4