參數(shù)資料
型號(hào): 74LVC543A
廠商: NXP Semiconductors N.V.
英文描述: Octal D-type registered transceiver 3-State
中文描述: 八路?注冊(cè)收發(fā)3型國(guó)家
文件頁(yè)數(shù): 4/12頁(yè)
文件大?。?/td> 104K
代理商: 74LVC543A
Philips Semiconductors
Product specification
74LVC543A
Octal D-type registered transceiver (3-State)
1998 Jul 31
4
LOGIC DIAGRAM
LE
D
LE
D
A
n
B
n
TO 7 OTHER CHANNELS
8 IDENTICAL
CHANNELS
OE
BA
E
BA
LE
BA
OE
AB
E
AB
LE
AB
SW00215
FUNCTION TABLE
OPERATING MODES
INPUTS
OUTPUTS
OE
XX
E
XX
LE
XX
DATA
Disabled
H
X
X
X
Z
Disabled
X
H
X
X
Z
Disabled + Latch
L
L
L
L
h
l
Z
Z
Latch + Display
L
L
L
L
h
l
H
L
Transparent
L
L
L
L
L
L
H
L
H
L
Hold
L
L
H
X
NC
(do nothing)
NOTES:
XX
H
L
h
l
X
NC =
Z
=
=
=
=
=
=
=
AB for A-to-B direction, BA for B-to-A direction
High voltage level
Low voltage level
High state must be present one setup time before the Low-to-High transition of LE
AB
, LE
BA
, E
AB
, E
BA
Low state must be present one setup time before the Low-to-High transition of LE
AB
, LE
BA
, E
AB
, E
BA
Don’t care
Low-to-High level transition
No change
High impedance OFF state
=
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