M74HC190 查看數據表（PDF） - STMicroelectronics
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M74HC190 Datasheet PDF : 14 Pages
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M74HC190
Test Condition
Symbol
Parameter
VCC
(V)
th Minimum Hold
2.0
Time
4.5
6.0
tREM Minimum Removal 2.0
Time (CLEAR)
4.5
6.0
Value
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
0
0
0
0
0
0 ns
0
0
0
12 50
60
65
3 10
12
15 ns
3
9
11
13
CAPACITIVE CHARACTERISTICS
Test Condition
Value
Symbol
Parameter
VCC
(V)
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
CIN Input Capacitance 5.0
5 10
10
10 pF
CPD Power Dissipation
Capacitance (note 5.0
111
pF
1)
1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC
TEST CIRCUIT
CL = 50pF or equivalent (includes jig and probe capacitance)
RT = ZOUT of pulse generator (typically 50Ω)
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