74LVQ374 Ver la hoja de datos (PDF) - STMicroelectronics
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74LVQ374 Datasheet PDF : 13 Pages
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74LVQ374
Table 8: AC Electrical Characteristics (CL = 50 pF, RL = 500 Ω, Input tr = tf = 3ns)
Test Condition
Value
Symbol
Parameter
VCC
(V)
tPLH
tPHL
tPLZ
tPHZ
tPZL
tPZH
tW
tsL
tsH
thL
thH
fMAX
tOSLH
tOSHL
Propagation Delay
Time CK to Q
Output Disable
Time
Output Enable
Time
Clock Pulse Width
HIGH
Setup Time D to
CK, HIGH or LOW
Hold Time CK to D,
HIGH or LOW
Maximum Clock
Frequency
Output To Output
Skew Time
(note1, 2)
2.7
3.3(*)
2.7
3.3(*)
2.7
3.3(*)
2.7
3.3(*)
2.7
3.3(*)
2.7
3.3(*)
2.7
3.3(*)
2.7
3.3(*)
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min.
4.0
3.0
3.0
2.0
1.0
1.5
100
120
Typ.
7.7
6.3
8.8
7.2
9.2
7.2
1.5
1.1
0.0
0.0
0.0
0.0
150
180
0.5
0.5
Max.
12.0
9.0
13.0
10.0
13.0
10.0
1.0
1.0
Min.
4.0
3.0
3.0
2.0
1.0
1.5
80
100
Max.
14.0
10.5
15.0
11.5
15.0
11.5
1.0
1.0
Min.
4.0
3.0
3.0
2.0
1.0
1.5
60
80
Max.
16.0
12.0
17.0
13.0
17.0
13.0
1.0
1.0
ns
ns
ns
ns
ns
ns
MHz
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
(*) Voltage range is 3.3V ± 0.3V
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 (note 3.3
1)
fIN = 10MHz
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
4
pF
7
pF
15
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/8 (per Flip
Flop)
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