74LVQ74T Просмотр технического описания (PDF) - STMicroelectronics
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74LVQ74T Datasheet PDF : 11 Pages
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74LVQ74
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, RL = 500 Ω, Input tr = tf =3 ns)
Symb ol
Parameter
T est Con ditio n
VCC
(V)
Valu e
TA = 25 oC
-40 to 85 oC
Min. T yp. Max. Min. Max.
Unit
tPLH Propagation Delay Time
tPHL CK to Q
2.7
3.3(*)
8.0 19.0
6.5 13.0
21.0 ns
14.0
tPLH Propagation Delay Time
tPHL PR or CLR to Q
2.7
3.3(*)
7.0 16.0
6.0 12.0
19.0 ns
13.0
tw Pulse Width CK, HIGH
or LOW
2.7
3.3(*)
1.5 7.0
1.5 5.0
10.0 ns
7.0
tw(L) Pulse Width PR or CLR,
LOW
2.7
3.3(*)
1.5 7.0
1.5 5.0
10.0 ns
7.0
ts Setup Time D to CK
HIGH or LOW
2.7
3.3(*)
-0.2 5.0
-0.2 4.0
6.0
ns
5.0
th Hold Time Q to CK
HIGH or LOW
2.7
3.3(*)
0.2 2.0
0.2 2.0
2.0
ns
2.0
tREM Recovery Time PR or
CLR to Q
2.7
3.3(*)
-1.0 1.0
-1.0 1.0
1.0
ns
1.0
fMAX Maximum Clock
Frequency
2.7
3.3(*)
60 200
40
MHz
100 250
100
tOSLZ Output to Output Skew
tOSHL Time (note 1, 2)
2.7
3.3(*)
0.5 1.0
0.5 1.0
1.5 ns
1.5
1) Skew is defined as the absolute value of the difference between the actual propagation delay for any twooutputs of the same device switching in the
same direction, either HIGH or LOW
2) Parameter guaranteed by design
CAPACITIVE CHARACTERISTICS
Symb ol
Parameter
Test Conditions
VCC
(V)
Valu e
TA = 25 oC
-40 to 85 oC
Min. T yp. Max. Min. Max.
Unit
CIN Input Capacitance
3.3
4
pF
CPD Power Dissipation
3.3
fIN = 10 MHz
33
pF
Capacitance (note 1)
1) CPD isdefined as the value of the IC’sinternal equivalent capacitance which is calculated fromthe operating current consumption without load. (Referto
Test Circuit).Average operting current can be obtained by the following equation. ICC(opr) = CPD • VCC • fIN + ICC/n(per circuit)
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