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54LCX245 数据表(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部件名 54LCX245
功能描述  Low Voltage Bidirectional Transceiver with 5V Tolerant Inputs and Outputs
PDF  6 Pages
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

54LCX245 数据表(HTML) 4 Page - National Semiconductor (TI)

  54LCX245 Datasheet HTML 1Page - National Semiconductor (TI) 54LCX245 Datasheet HTML 2Page - National Semiconductor (TI) 54LCX245 Datasheet HTML 3Page - National Semiconductor (TI) 54LCX245 Datasheet HTML 4Page - National Semiconductor (TI) 54LCX245 Datasheet HTML 5Page - National Semiconductor (TI) 54LCX245 Datasheet HTML 6Page - National Semiconductor (TI)  
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AC Electrical Characteristics
Symbol
Parameter
TA = −55˚C to +125˚C, CL = 50pF, RL = 500Ω
Units
VCC = 3.3V ± 0.3V
VCC = 2.7V
Min
Max
Min
Max
tPHL
Propagation Delay
1.5
8.0
1.5
9.0
ns
tPLH
An to Bn or Bn to An
1.5
8.0
1.5
9.0
tPZL
Output Enable Time
1.5
10.0
1.5
11.0
ns
tPZH
1.5
10.0
1.5
11.0
tPLZ
Output Disable Time
1.5
8.0
1.5
9.0
ns
tPHZ
1.5
8.0
1.5
9.0
tOSHL
Output to Output Skew
1.0
1.0
ns
tOSLH
(Notes 4, 5)
1.0
1.0
Note 4: 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).
Note 5: Guaranteed but not tested (design characterization data).
Dynamic Switching Characteristics
Symbol
Parameter
Conditions
VCC
(V)
TA = 25˚C
Units
Max
VOLP
Quiet Output Dynamic Peak VOL
CL = 50 pF, VIH = 3.0V, VIL = 0V
3.0
1.0
V
VOLV
Quiet Output Dynamic Valley VOL
CL = 50 pF, VIH = 3.0V, V IL = 0V
3.0
-0.8
V
Capacitance
Symbol
Parameter
Conditions
Max
Units
CIN
Input Capacitance
VCC = Open, VI = 0V or VCC
10
pF
CI/O
Input/Output Capacitance
VCC = 3.3V, VI = 0V or VCC
12
pF
CPD
Power Dissipation Capacitance
VCC = 3.3V, VI = 0V or VCC,f = 10 MHz
30
pF
www.national.com
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