74LVQ273 데이터 시트보기 (PDF) - Fairchild Semiconductor
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74LVQ273 Datasheet PDF : 6 Pages
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AC Electrical Characteristics
TA = +25°C
TA = −40°C to +85°C
Symbol
Parameter
VCC
CL = 50 pF
CL = 50 pF
Units
(V)
Min
Typ
Max
Min
Max
fMAX
Maximum Clock
Frequency
2.7
50
3.3 ± 0.3
90
45
MHz
75
tPLH
Propagation Delay
CP to Qn
2.7
4.0
9.6
17.6
3.0
20.0
ns
3.3 ± 0.3
4.0
8.0
12.5
3.0
14.0
tPHL
Propagation Delay
CP to Qn
2.7
4.0
10.2
18.3
3.5
20.5
ns
3.3 ± 0.3
4.0
8.5
13.0
3.5
14.5
tPHL
Propagation Delay
MR to Qn
2.7
4.0
10.2
18.3
3.5
20.0
ns
3.3 ± 0.3
4.0
8.5
13.0
3.5
14.0
tOSHL
tOSLH
Output to Output
Skew (Note 9)
2.7
3.3 ± 0.3
1.0
1.5
1.0
1.5
1.5
ns
1.5
Note 9: Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs within the same packaged 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. Not tested.
AC Operating Requirements
Symbol
Parameter
tS
Setup Time, HIGH or LOW
Dn to CP
tH
Hold Time, HIGH or LOW
Dn to CP
tW
Clock Pulse Width
HIGH or LOW
tW
MR Pulse Width
HIGH or LOW
tW
Recovery Time
MR to CP
VCC
(V)
2.7
3.3 ± 0.3
2.7
3.3 ± 0.3
2.7
3.3 ± 0.3
2.7
3.3 ± 0.3
2.7
3.3 ± 0.3
TA = +25°C
TA = −40°C to +85°C
CL = 50 pF
CL = 50 pF
Typ
Guaranteed Minimum
6.5
8.5
5.0
6.0
0.0
0.0
0.0
0.0
7.0
8.5
5.5
6.0
7.0
8.5
5.5
6.0
5.0
6.5
4.0
4.5
Units
ns
ns
ns
ns
ns
Capacitance
Symbol
Parameter
CIN
Input Capacitance
CPD (Note 10)
Power Dissipation Capacitance
Note 10: CPD is measured at 10 MHz.
Typ
Units
Conditions
4.5
pF
VCC = Open
35
pF
VCC = 3.3V
3
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