74LVQ138MTR(2004) View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
74LVQ138MTR Datasheet PDF : 12 Pages
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74LVQ138
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.
0.2 0.8
V
-0.8 -0.2
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
Value
Symbol
Parameter
VCC
(V)
tPLH tPHL Propagation Delay
Time
A, B, C to Y
tPLH tPHL Propagation Delay
Time
G1 to Y
tPLH tPHL Propagation Delay
Time
G2A or G2B to Y
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(*)
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
6.6 10.5
5.5 8.0
12.0
9.0
14.0
ns
10.5
6.7 10.5
5.6 8.0
12.0
9.0
14.0
ns
10.5
6.3 10.5
5.2 8.0
12.0
9.0
14.0
ns
10.5
0.5 1.0
1.0
1.0
0.5 1.0
1.0
1.0 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
CPD Power Dissipation
Capacitance (note 3.3
1)
fIN = 10MH
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
4
pF
50
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
4/12
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