M74HCT373 데이터 시트보기 (PDF) - STMicroelectronics
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M74HCT373 Datasheet PDF : 11 Pages
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M74HCT373
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
Test Condition
Value
Symbol
Parameter
tTLH tTHL Output Transition
Time
tPLH tPHL Propagation Delay
Time
(LE - Q)
tPLH tPHL Propagation Delay
Time
(D - Q)
tPZL tPZH High Impedance
Output Enable
Time
tPLZ tPHZ High Impedance
Output Disable
Time
tW(H) Minimum Pulse
Width (LE)
ts
Minimum Set-up
Time
th Minimum Hold
Time
VCC CL
(V) (pF)
4.5 50
50
4.5
150
50
4.5
150
50
4.5
150
4.5 50
4.5 50
4.5 50
4.5 50
RL = 1 KΩ
RL = 1 KΩ
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
7 12
15
18 ns
20 30
38
45
ns
24 37
46
56
19 30
38
45
ns
23 36
45
54
20 30
38
45 ns
24 37
46
56
20 30
38
45 ns
8 15
19
22 ns
4 10
13
15 ns
5
5
8 ns
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 10
10
10 pF
CPD Power Dissipation
Capacitance (note
66
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/8 (per Flip
Flop) and the CPD when n pcs of Flip Flop operate, can be gained by the following equation: CPD(TOTAL) = 32 + 34 x n (pF)
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