M74HCT393(1993) View Datasheet(PDF) - STMicroelectronics
Part Name
Description
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M74HCT393 Datasheet PDF : 12 Pages
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M54/M74HCT393
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
(CLOCK - QA)
8
15
19
22
ns
19 30
38
45
ns
tPLH Propagation
4.5
tPHL Delay Time
(CLOCK - QB)
24 37
46
56
ns
tPLH Propagation
4.5
tPHL Delay Time
(CLOCK - QC)
28 43
54
65
ns
tPLH Propagation
4.5
tPHL Delay Time
(CLOCK - QD)
33 51
64
77
ns
tPLH Propagation
4.5
tPHL Delay Time
(CLEAR - Qn)
20 31
39
47
ns
fMAX Maximum Clock 4.5
Frequency
4.2 80
34
MHz
tW(H) Minimum Pulse 4.5
tW(L) Width
(CLOCK)
8
15
19
22
ns
tW(H) Minimum Pulse 4.5
Width
(CLEAR)
8
15
19
22
ns
tREM Minimum
4.5
Removal Time
5
6
8
ns
CIN Input Capacitance
5
10
10
10 pF
CPD (*) Power Dissipation
66
Capacitance
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/4 (per Flip Flop)
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