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74LCX02MTR(2004) View Datasheet(PDF) - STMicroelectronics

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74LCX02MTR Datasheet PDF : 11 Pages
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74LCX02
Table 8: AC Electrical Characteristics
Test Condition
Value
Symbol
Parameter
tPLH tPHL
tOSLH
tOSHL
Propagation Delay
Time
Output To Output
Skew Time (note1,
2)
VCC
(V)
2.7
3.0 to 3.6
3.0 to 3.6
CL RL ts = tr
(pF) () (ns)
50 500 2.5
50 500 2.5
-40 to 85 °C
Min.
1.0
Max.
4.4
5.4
1.0
-55 to 125 °C
Min.
1.0
Max.
4.4
5.4
1.0
Unit
ns
ns
1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switch-
ing in the same direction, either HIGH or LOW (tOSLH = | tPLHm - tPLHn|, tOSHL = | tPHLm - tPHLn|)
2) Parameter guaranteed by design
Table 9: Capacitive Characteristics
Test Condition
Value
Symbol
Parameter
VCC
(V)
CIN Input Capacitance
3.3
CPD Power Dissipation Capacitance
3.3
(note 1)
VIN = 0 to VCC
fIN = 10MHz
VIN = 0 or VCC
TA = 25 °C
Unit
Min. Typ. Max.
6
pF
43
pF
1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/4 (per gate)
Figure 3: Test Circuit
CL = 50 pF or equivalent (includes jig and probe capacitance)
RL = 500or equivalent
RT = ZOUT of pulse generator (typically 50)
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