74LVX4245T データシートの表示（PDF） - STMicroelectronics
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74LVX4245T Datasheet PDF : 10 Pages
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74LVX4245
AC ELECTRICAL CHARACTERISTICS (Input tr = tf =3 ns, VCCA = 4.5 to 5.5V, CL = 50 pF)
Symb ol
Parameter
V alu e
Un it
Min.
VCCB = 3±0.3 V
TA = 25 oC
-40 to 85 oC
Typ. Max. Min. Max.
(*)
VCCB =2.7 V
-40 to 85 oC
Min . Max.
tPLH Propagation Delay
tPHL Time An to Bn
1.0
5.1
8.5
1.0
9.0
1.0
10.0
ns
1.0
5.3
8.5
1.0
9.0
1.0
10.0
tPZL Output Enable Time
tPZH G to Bn
1.0
1.0
6.5
10.0
1.0
10.5
1.0
11.5
ns
6.7
10.0
1.0
10.5
1.0
11.5
tPLZ Output Disable Time
1.0
tPHZ G to Bn
1.0
6.0
3.3
9.5
6.5
1.0
10.0
1.0
10.0
ns
1.0
7.0
1.0
7.5
tPLH Propagation Delay
tPHL TimeBn to An
1.0
5.4
8.5
1.0
9.0
1.0
10.0
ns
1.0
5.5
8.5
1.0
9.0
1.0
10.0
tPZL Output Enable Time
tPZH G to An
1.0
1.0
5.2
5.8
9.0
9.0
1.0
1.0
9.5
9.5
1.0
10.0
ns
1.0
10.0
tPLZ Output Disable Time
1.0
tPHZ G to An
1.0
3.9
2.9
7.0
6.5
1.0
1.0
7.5
7.0
1.0
1.0
7.5
ns
7.5
tOSLZ Output to Output
1.0
1.5
1.5
1.5
ns
tOSHL Skew Time (note 1, 2)
1.0
1.5
1.5
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
(*) Typical values at VCCA = 3.3V VCCB = 5.0V
(**) Typical values at VCCA = 3.3V VCCB = 3.3V
CAPACITIVE CHARACTERISTICS
Symb ol
Parameter
T est Con ditio ns
VCCB VCCA
(V) (V)
Valu e
TA = 25 oC
-40 to 85 oC
Min. T yp. Max. Min. Max.
Unit
CINA Input Capacitance
open open
4.5
pF
CI/O Input/Output
Capacitance
3.3 5.0
10
pF
CPD Power Dissipation
Capacitance (note 1)
A to B
3.3 5.0
55
pF
CPD Power Dissipation
Capacitance (note 1)
3.3 5.0
40
pF
B to A
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/8(per circuit)
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