74LCX125(2004) 데이터 시트보기 (PDF) - STMicroelectronics
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74LCX125
(Rev.:2004)
(Rev.:2004)
STMicroelectronics
74LCX125 Datasheet PDF : 12 Pages
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74LCX125
Table 7: Dynamic Switching Characteristics
Test Condition
Value
Symbol
Parameter
VOLP
VOLV
Dynamic Low Level Quiet
Output (note 1)
VCC
TA = 25 °C
Unit
(V)
Min. Typ. Max.
3.3
CL = 50pF
VIL = 0V, VIH = 3.3V
0.8
-0.8
V
1) Number of outputs defined as "n". Measured with "n-1" outputs switching from HIGH to LOW or LOW to HIGH. The remaining output is
measured in the LOW state.
Table 8: AC Electrical Characteristics
Test Condition
Value
Symbol
Parameter
tPLH tPHL
tPZL tPZH
tPLZ tPHZ
tOSLH
tOSHL
Propagation Delay
Time
Output Enable Time
to HIGH and LOW
level
Output Disable Time
to HIGH and LOW
level
Output To Output
Skew Time (note1,
2)
VCC
(V)
2.7
3.0 to 3.6
2.7
3.0 to 3.6
2.7
3.0 to 3.6
3.0 to 3.6
CL RL ts = tr
(pF) (Ω) (ns)
50 500 2.5
50 500 2.5
50 500 2.5
50 500 2.5
-40 to 85 °C
Min.
1.0
1.0
Max.
6.0
5.2
6.0
1.0
5.0
1.0
6.0
1.0
5.0
1.0
-55 to 125 °C
Min.
1.0
1.0
Max.
6.9
6.0
6.9
1.0
6.0
1.0
6.9
1.0
6.0
1.0
Unit
ns
ns
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
COUT Output Capacitance
3.3
CPD Power Dissipation Capacitance
3.3
(note 1)
VIN = 0 to VCC
VIN = 0 to VCC
fIN = 10MHz
VIN = 0 or VCC
TA = 25 °C
Unit
Min. Typ. Max.
5
pF
10
pF
37
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)
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