74LVC573 PHILIPS [NXP Semiconductors], 74LVC573 Datasheet - Page 7

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74LVC573

Manufacturer Part Number
74LVC573
Description
Octal D-type transparent latch with 5-volt tolerant inputs/outputs 3-State
Manufacturer
PHILIPS [NXP Semiconductors]
Datasheet

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Philips Semiconductors
AC WAVEFORMS
V
V
output load.
V
V
Waveform 1. Input (D
Waveform 2. Latch enable input (LE) pulse width, the latch
enable input to output (Q
Waveform 3. 3-State enable and disable times.
1998 Jul 29
M
OL
X
Y
Octal D-type transparent latch with 5-volt
tolerant inputs/outputs (3-State)
Q
LOW-to-OFF
OFF-to-LOW
Q
HIGH-to-OFF
OFF-to-HIGH
= V
= V
nOE INPUT
INPUT
OUTPUT
= 1.5V at V
n
n
Qn OUTPUT
and V
GND
V
V
GND
V
LE INPUT
V
OUTPUT
OUTPUT
GND
V
V
OL
OH
OH
CC
OL
OH
OL
V
I
I
+ 0.3V at V
–0.3V at V
OH
V
are the typical output voltage drop that occur with the
V
GND
V
OL
CC
OH
I
w 2.7V; V
V
outputs
enabled
V
CC
M
CC
t
M
PHL
t
PLZ
n
t
w 2.7V; V
w 2.7V; V
PHZ
) to output (Qn) propagation delays.
V
n
t
M
PHL
) propagation delays
M
t
w
= 0.5 V
V
M
V
Y
V
X
V
X
M
Y
= V
= V
CC
OH
OL
outputs
disabled
at V
– 0.1 V
+ 0.1 V
CC
t
t
t 2.7V.
PZL
PLH
t
PZH
t
CC
PLH
CC
at V
at V
SY00041
SA00388
V
CC
CC
M
V
M
SW00207
outputs
enabled
t 2.7V
t 2.7V
7
Waveform 4. Data setup and hold times for the D
LE input.
TEST CIRCUIT
Dn
INPUT
LE
INPUT
NOTE: The shaded areas indicate when the input is permitted to change
DEFINITIONS
R
C
R
GENERATOR
SWITCH POSITION
t
t
GND
GND
t
PHZ
L
L
T
É É É
É É É
É É É
PLH
PLZ
TEST
PULSE
= Load resistor
= Load capacitance includes jig and probe capacitance
V
V
= Termination resistance should be equal to Z
Waveform 5. Load circuitry for switching times.
I
I
of pulse generators.
/t
/t
/t
for predictable output performance.
PHL
PZL
PZH
Test Circuit for 3-State Outputs
SWITCH
2<V
V
Open
GND
M
V
t
IN
SU
CC
R
É É É É É É É É
É É É É É É É É
É É É É É É É É
T
th
V
M
D.U.T.
V
CC
2.7 – 3.6V
t 2.7V
V
V
OUT
CC
C
74LVC573A
L
Product specification
t
SU
2.7V
V
V
CC
IN
OUT
n
É É É
É É É
É É É
S
input to the
1
R
R
th
L
L
=500
=500
SW00073
2<V
GND
Open
SW00047
CC

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