M54HCT137 데이터 시트보기 (PDF) - STMicroelectronics
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M54HCT137 Datasheet PDF : 12 Pages
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M54/M74HCT137
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6 ns)
Symbol
Parameter
Test Conditions
VCC
(V)
TA = 25 oC
54HC and 74HC
Value
-40 to 85 oC -55 to 125 oC Unit
74HC
54HC
Min. Typ. Max. Min. Max. Min. Max.
tTLH Output Transition 4.5
tTHL Time
tPLH Propagation
4.5
tPHL Delay Time
(G1 - Y)
8
15
19
22
ns
17 27
34
41
ns
tPLH Propagation
4.5
tPHL Delay Time
(G2 - Y)
18 28
35
42
ns
tPLH Propagation
4.5
tPHL Delay Time
(GL - Y)
25 39
49
59
ns
tPLH Propagation
4.5
tPHL Delay Time
(A, B, C - Y)
24 37
46
56
ns
tW(L) Minimum Pulse 4.5
Width
(GL)
8
15
19
22
ns
ts
Minimum Set-up 4.5
Time
(A, B, C - GL)
5
6
8
ns
th
Minimum Hold
4.5
Time
(A, B, C - GL)
5
6
8
ns
CIN
CPD (*)
Input Capacitance
Power Dissipation
Capacitance
5
10
10
10 pF
58
pF
(*) 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 operting current can be obtained by the following equation. ICC(opr) = CPD •VCC •fIN + ICC
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