參數(shù)資料
型號: 74HC533
廠商: NXP Semiconductors N.V.
英文描述: Octal D-type transparent latch; 3-state; inverting
中文描述: 八路D型透明鎖存器,三態(tài);反相
文件頁數(shù): 4/7頁
文件大?。?/td> 62K
代理商: 74HC533
December 1990
4
Philips Semiconductors
Product specification
Octal D-type transparent latch; 3-state;
inverting
74HC/HCT533
Fig.4 Functional diagram.
Fig.5 Logic diagram (one latch).
FUNCTION TABLE
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
OPERATING
MODES
INPUTS
INTERNAL
LATCHES
OUTPUTS
OE
LE
D
n
L
H
Q
0
TO Q
7
H
L
enable and
read register
(transparent
mode)
latch and
read register
latch register
and disable
outputs
L
L
H
H
L
H
L
L
H
H
L
L
X
X
l
h
X
X
L
H
X
X
H
L
Z
Z
Fig.6 Logic diagram.
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