74VHCT273 Просмотр технического описания (PDF) - STMicroelectronics
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74VHCT273 Datasheet PDF : 9 Pages
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74VHCT273A
AC ELECTRICAL CHARACTERISTICS (Input tr = tf =3 ns)
Symb ol
Parameter
Test Condition
V CC
CL
( V)
(pF)
tPLH Propagation Delay
tPHL Time CK to Q
5.0(*)
15
5.0(*)
50
tPHL Propagation Delay
Time CLR to Q
5.0(*)
15
5.0(*)
50
tw CLR pulse Width
LOW
tw CK pulse Width
HIGH or LOW
ts Setup Time D to CK
HIGH or LOW
th Hold Time D to CK
HIGH or LOW
tREM Removal Time
CLR to CK
5.0(*)
5.0(*)
5.0(*)
5.0(*)
5.0(*)
fMAX Maximum Clock
Frequency
5.0(*)
15
5.0(*)
50
tOSLH Output to Output Skew
tOSHL Time (note 1)
5.0(*)
50
(*) Voltage range is 5V ± 0.5V
Note 1: Parameter guaranteed by design. tsoLH = |tpLHm- tpLHn|, tsoHL = |tpHLm - tpHLn|
Value
TA = 25 oC
Min. Typ. Max.
5.6 8.2
6.3 9.2
6.9 10.0
7.7 11.0
5.0
-40 to 85 oC
Min . Max.
1.0 10.0
1.0 11.0
1.0 11.6
1.0 12.6
5.0
Unit
ns
ns
ns
5.0
5.0
ns
2.0
2.0
ns
2.0
2.0
ns
1.0
1.0
ns
75 170
65
MHz
50 160
45
1.0
1.0
ns
CAPACITIVE CHARACTERISTICS
Symb ol
Parameter
Test Conditions
Value
Un it
TA = 25 oC
-40 to 85 oC
Min. Typ . Max. Min . Max.
CIN Input Capacitance
4
10
10
pF
CPD Power Dissipation
Capacitance (note 1)
15
pF
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 operating current can be obtained by the following equation. ICC(opr) = CPD • VCC • fIN + ICC/8 (per Flip-Flop)
DYNAMIC SWITCHING CHARACTERISTICS
Symb ol
Parameter
Test Conditions
V CC
( V)
Value
TA = 25 oC
Min. Typ. Max.
-40 to 85 oC
Min . Max.
Un it
VOLP Dynamic Low Voltage
5.0
VOLV Quiet Output (note 1, 2)
0.6 0.9
-0.9 -0.6
VIHD Dynamic High Voltage
5.0
CL = 50 pF
2.0
V
Input (note 1, 3)
VILD Dynamic Low Voltage
5.0
0.8
Input (note 1, 3)
1) Worst case package.
2) Max number of outputs defined as (n). Data inputs are driven 0V to 3.0V, (n -1) outputs switching and one output at GND.
3) Max number of data inputs (n) switching. (n-1) switching 0V to3.0V. Inputs under test switching: 3.0V to threshold (VILD), 0V to threshold (VIHD), f=1MHz.
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