English
Language : 

MC74LVX138_14 Datasheet, PDF (4/7 Pages) ON Semiconductor – 3-to-8 Line Decoder
MC74LVX138
AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3.0ns)
TA = 25°C
TA = −40 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
−
CL = 50pF
−
7.1
13.8
1.0
9.6
17.3
1.0
16.5
ns
20.0
VCC = 3.3 ± 0.3V CL = 15pF
−
5.5
8.8
1.0
10.5
CL = 50pF
−
8.0
12.3
1.0
14.0
tPLH,
tPHL
Propagation Delay
E3 to O
VCC = 2.7V
CL = 15pF
−
8.7
16.3
1.0
CL = 50pF
−
11.2 19.8
1.0
19.5
ns
23.0
VCC = 3.3 ± 0.3V CL = 15pF
−
6.8
10.6
1.0
12.5
CL = 50pF
−
9.3
14.1
1.0
16.0
tPLH,
tPHL
Propagation Delay
E1 or E2 to O
VCC = 2.7V
CL = 15pF
−
8.8
16.0
1.0
CL = 50pF
−
11.3 19.5
1.0
18.5
ns
22.0
VCC = 3.3 ± 0.3V CL = 15pF
−
6.9
10.4
1.0
11.5
CL = 50pF
−
9.4
13.9
1.0
15.0
tOSHL Output−to−Output Skew
VCC = 2.7V
CL = 50pF
−
−
2.5
−
tOSLH (Note 1)
VCC = 3.3 ± 0.3V CL = 50pF
−
−
2.5
−
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 HIGH−to−LOW (tOSHL) or LOW−to−HIGH (tOSLH); parameter
guaranteed by design.
CAPACITIVE CHARACTERISTICS
Symbol
Parameter
TA = 25°C
Min
Typ
Max
TA = −40 to 85°C
Min
Max
Unit
Cin Input Capacitance
−
4
10
−
10
pF
CPD Power Dissipation Capacitance (Note 2)
−
34
−
−
−
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 no−load 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
−
0.5
V
VOLV Quiet Output Minimum Dynamic VOL
−
−0.5
V
VIHD Minimum High Level Dynamic Input Voltage
−
2.0
V
VILD Maximum Low Level Dynamic Input Voltage
−
0.8
V
http://onsemi.com
4