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MC74LVX138_14 Datasheet, PDF (4/7 Pages) ON Semiconductor – 3-to-8 Line Decoder | |||
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MC74LVX138
AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3.0ns)
TA = 25°C
TA = â40 to 85°C
Symbol
Parameter
Test Conditions
Min
Typ
Max
Min
Max
Unit
tPLH,
tPHL
Propagation Delay
Input to Output
VCC = 2.7V
CL = 15pF
â
CL = 50pF
â
7.1
13.8
1.0
9.6
17.3
1.0
16.5
ns
20.0
VCC = 3.3 ± 0.3V CL = 15pF
â
5.5
8.8
1.0
10.5
CL = 50pF
â
8.0
12.3
1.0
14.0
tPLH,
tPHL
Propagation Delay
E3 to O
VCC = 2.7V
CL = 15pF
â
8.7
16.3
1.0
CL = 50pF
â
11.2 19.8
1.0
19.5
ns
23.0
VCC = 3.3 ± 0.3V CL = 15pF
â
6.8
10.6
1.0
12.5
CL = 50pF
â
9.3
14.1
1.0
16.0
tPLH,
tPHL
Propagation Delay
E1 or E2 to O
VCC = 2.7V
CL = 15pF
â
8.8
16.0
1.0
CL = 50pF
â
11.3 19.5
1.0
18.5
ns
22.0
VCC = 3.3 ± 0.3V CL = 15pF
â
6.9
10.4
1.0
11.5
CL = 50pF
â
9.4
13.9
1.0
15.0
tOSHL OutputâtoâOutput Skew
VCC = 2.7V
CL = 50pF
â
â
2.5
â
tOSLH (Note 1)
VCC = 3.3 ± 0.3V CL = 50pF
â
â
2.5
â
2.5
ns
2.5
1. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device.
The specification applies to any outputs switching in the same direction, either HIGHâtoâLOW (tOSHL) or LOWâtoâHIGH (tOSLH); parameter
guaranteed by design.
CAPACITIVE CHARACTERISTICS
Symbol
Parameter
TA = 25°C
Min
Typ
Max
TA = â40 to 85°C
Min
Max
Unit
Cin Input Capacitance
â
4
10
â
10
pF
CPD Power Dissipation Capacitance (Note 2)
â
34
â
â
â
pF
2. CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load.
Average operating current can be obtained by the equation: ICC(OPR) = CPD VCC fin + ICC . CPD is used to determine the noâload dynamic
power consumption; PD = CPD VCC2 fin + ICC VCC.
NOISE CHARACTERISTICS (Input tr = tf = 3.0ns, CL = 50pF, VCC = 3.3V, Measured in SOIC Package)
TA = 25°C
Symbol
Characteristic
Typ
Max
Unit
VOLP Quiet Output Maximum Dynamic VOL
â
0.5
V
VOLV Quiet Output Minimum Dynamic VOL
â
â0.5
V
VIHD Minimum High Level Dynamic Input Voltage
â
2.0
V
VILD Maximum Low Level Dynamic Input Voltage
â
0.8
V
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