74LVQ138M View Datasheet(PDF) - STMicroelectronics
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Description
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74LVQ138M Datasheet PDF : 9 Pages
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74LVQ138
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, RL = 500 Ω, Input tr = tf = 3ns)
Test Condition
Value
Symbol
Parameter
VCC
(V)
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
tPLH tPHL Propagation Delay
Time
A, B, C to Y
2.7
3.3(*)
6.6 10.5
5.5 8.0
12.0
9.0
14.0
ns
10.5
tPLH tPHL Propagation Delay
Time
G1 to Y
2.7
3.3(*)
6.7 10.5
5.6 8.0
12.0
9.0
14.0
ns
10.5
tPLH tPHL Propagation Delay
Time
G2A or G2B to Y
2.7
3.3(*)
6.3 10.5
5.2 8.0
12.0
9.0
14.0
ns
10.5
tOSLH
tOSHL
Output To Output
Skew Time
(note1, 2)
2.7
3.3(*)
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
CAPACITIVE CHARACTERISTICS
Test Condition
Value
Symbol
Parameter
VCC
(V)
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
CIN Input Capacitance 3.3
4
pF
CPD Power Dissipation
Capacitance (note 3.3
fIN = 10MH
50
pF
1)
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
TEST CIRCUIT
CL = 50pF or equivalent (includes jig and probe capacitance)
RL = 500Ω or equivalent
RT = ZOUT of pulse generator (typically 50Ω)
5/9
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