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54LVX4245J-QML Scheda tecnica(PDF) 5 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Il numero della parte 54LVX4245J-QML
Spiegazioni elettronici  8-Bit Dual Supply Translating Transceiver with TRI-STATE Outputs
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Produttore elettronici  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
Logo NSC - National Semiconductor (TI)

54LVX4245J-QML Scheda tecnica(HTML) 5 Page - National Semiconductor (TI)

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AC Electrical Characteristics
Symbol
Parameters
T
A = −55˚C to +125˚C
T
A = −55˚C to +125˚C
Units
C
L = 50 pF
C
L = 50 pF
V
CCA = 5V (Note 6)
V
CCA = 5V (Note 6)
V
CCB = 3.3V (Note 7)
V
CCB = 2.7V
Min
Max
Min
Max
t
PHL
Propagation Delay
1.0
7.5
1.0
8.5
ns
t
PLH
A to B
1.0
7.5
1.0
8.5
t
PHL
Propagation Delay
1.0
8.5
1.0
9.0
ns
t
PLH
B to A
1.0
8.5
1.0
9.0
t
PZL
Output Enable Time
1.0
9.5
1.0
10.0
ns
t
PZH
OE to B
1.0
9.5
1.0
10.0
t
PZL
Output Enable Time
1.0
8.0
1.0
8.0
ns
t
PZH
OE to A
1.0
8.0
1.0
8.0
t
PHZ
Output Disable Time
1.0
7.5
1.0
7.5
ns
t
PLZ
OE to B
1.0
7.5
1.0
7.5
t
PHZ
Output Disable Time
0.5
7.0
0.5
7.0
ns
t
PLZ
OE to A
0.5
7.0
0.5
7.0
t
OSHL
Output to Output
t
OSLH
Skew (Note 8)
1.5
1.5
ns
Data to Output
Note 6: Voltage Range 5.0V is 5.0V ±0.5V.
Note 7: Voltage Range 3.3V is 3.3V ±0.3V.
Note 8: Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The speci-
fication applies to any outputs switching in the same direction, either HIGH to LOW (tOSHL) or LOW to HIGH (tOSLH). Parameter guaranteed by design.
Capacitance
Symbol
Parameter
Max
Units
Conditions
C
IN
Input Capacitance
10
pF
V
CC = Open
C
I/O
Input/Output
12
pF
V
CCA = 5.0V
Capacitance
V
CCB = 3.3V
C
PD
Power Dissipation
50
pF
V
CCA = 5.0V
Capacitance
V
CCB = 3.3V
CPD is measured at 10 MHz
8-Bit Dual Supply Translating Transceiver
The LVX4245 is a dual supply device capable of bidirectional
signal translation. This level shifting ability provides an effi-
cient interface between low voltage CPU local bus with
memory and a standard bus defined by 5V I/O levels. The
device control inputs can be controlled by either the low volt-
age CPU and core logic or a bus arbitrator with 5V I/O levels.
Manufactured on a sub-micron CMOS process, the LVX4245
is ideal for mixed voltage applications using 3.3V devices
and 5V buses or IC’s.
DS101021-3
www.national.com
5


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