74LVC374AMTR Просмотр технического описания (PDF) - STMicroelectronics
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74LVC374AMTR Datasheet PDF : 14 Pages
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74LVC374A
Table 8: AC Electrical Characteristics
Test Condition
Value
Symbol
Parameter
VCC
CL
RL ts = tr -40 to 85 °C
-55 to 125 °C Unit
(V)
(pF) (Ω) (ns) Min. Max. Min. Max.
tPLH tPHL Propagation Delay 1.65 to 1.95 30 1000 2.0
TBD
TBD
Time D to Q
2.3 to 2.7 30 500 2.0
TBD
TBD
ns
2.7
50 500 2.5 1.5
7.8
1.5
9.4
3.0 to 3.6 50 500 2.5
1
6.8
1
8.2
tPLH tPHL Propagation Delay 1.65 to 1.95 30 1000 2.0
TBD
TBD
Time LE to Q
2.3 to 2.7 30 500 2.0
TBD
TBD
ns
2.7
50 500 2.5 1.5
7.8
1.5
9.4
3.0 to 3.6 50 500 2.5
1
6.8
1
8.2
tPZL tPZH Output Enable Time 1.65 to 1.95 30 1000 2.0
TBD
TBD
2.3 to 2.7 30 500 2.0
TBD
TBD
ns
2.7
50 500 2.5
1
8.7
1
10.4
3.0 to 3.6 50 500 2.5
1
7.7
1
9.2
tPLZ tPHZ Output Disable Time 1.65 to 1.95 30 1000 2.0
TBD
TBD
2.3 to 2.7 30 500 2.0
TBD
TBD
ns
2.7
50 500 2.5
2
7.6
2
9.1
3.0 to 3.6 50 500 2.5
2
7.0
2
8.4
tW
LE Pulse Width
1.65 to 1.95 30 1000 2.0 TBD
TBD
HIGH
2.3 to 2.7 30 500 2.0 TBD
TBD
ns
2.7
50 500 2.5 3.3
3.3
3.0 to 3.6 50 500 2.5 3.3
3.3
ts
Setup Time D to LE 1.65 to 1.95 30 1000 2.0 TBD
TDB
(HIGH to LOW)
2.3 to 2.7 30 500 2.0 TBD
TBD
ns
2.7
50 500 2.5
2
2
3.0 to 3.6 50 500 2.5
2
2
th
Hold Time D to
1.65 to 1.95 30 1000 2.0 TBD
TBD
CLOCK, HIGH or
2.3 to 2.7 30 500 2.0 TBD
TBD
LOW
ns
2.7
50 500 2.5 1.5
1.5
3.0 to 3.6 50 500 2.5 1.5
1.5
tOSLH
tOSHL
Output To Output
Skew Time (note1,
2)
2.7 to 3.6
1
1
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
CPD Power Dissipation Capacitance
1.8
(note 1)
2.5
3.3
fIN = 10MHz
TA = 25 °C
Unit
Min. Typ. Max.
4
pF
28
30
pF
34
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/n (per circuit)
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