74LVQ574 Ver la hoja de datos (PDF) - STMicroelectronics
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74LVQ574 Datasheet PDF : 13 Pages
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74LVQ574
Table 7: Dynamic Switching Characteristics
Test Condition
Value
Symbol
Parameter
VCC
(V)
VOLP Dynamic Low
Voltage Quiet
3.3
VOLV Output (note 1, 2)
VIHD Dynamic High
3.3
Voltage Input
(note 1, 3)
VILD Dynamic Low
3.3
Voltage Input
(note 1, 3)
CL = 50 pF
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
0.5 0.8
V
-0.8 -0.6
2
V
0.8
V
1) Worst case package.
2) Max number of outputs defined as (n). Data inputs are driven 0V to 3.3V, (n-1) outputs switching and one output at GND.
3) Max number of data inputs (n) switching. (n-1) switching 0V to 3.3V. Inputs under test switching: 3.3V to threshold (VILD), 0V to threshold
(VIHD), f=1MHz.
Table 8: AC Electrical Characteristics (CL = 50 pF, RL = 500 Ω, Input tr = tf = 3ns)
Test Condition
Symbol
Parameter
VCC
(V)
tPLH tPHL Propagation Delay
Time CK to Q
tPLZ Output Enable
tPHZ Time
tPZL Output Disable
tPZH Time
tW CK Pulse Width
HIGH or LOW
tsL
tsH
thL
thH
fMAX
Setup Time D to
CK, HIGH or LOW
Hold Time CK to D,
HIGH or LOW
Maximum Clock
Frequency
tOSLH
tOSHL
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(*)
Value
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.
7.4
6.1
8.0
6.5
8.0
6.5
2.0
1.5
0.0
0.0
0.0
0.0
150
180
0.5
0.5
Max.
12.0
9.0
12.0
9.0
12.0
9.0
1.0
1.0
Min.
4.0
3.0
3.0
2.0
1.0
1.5
80
100
Max.
14.0
10.5
14.0
10.5
14.0
10.5
1.0
1.0
Min.
4.0
3.0
3.0
2.0
1.0
1.5
60
80
Max.
16.0
12.0
16.0
12.0
16.0
12.0
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
4/13
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