M54HC4049 查看數據表（PDF） - STMicroelectronics
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M54HC4049 Datasheet PDF : 11 Pages
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M54/M74HC4049/4050
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6 ns)
Symbol
Parameter
Test Conditions
VCC CL
(V) (pF)
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 2.0
tTHL Time
4.5 50
25 60
75
90
7
12
15
18
ns
6.0
6
10
13
15
tPLH Propagation
tPHL Delay Time
2.0
4.5 50
30 75
9
15
95
115
19
23
ns
6.0
8
13
16
20
2.0
4.5 150
45 100
125
150
14 20
25
30
ns
6.0
12 17
21
26
CIN
CPD (*)
Input Capacitance
Power Dissipation
Capacitance
5
10
10
10 pF
26
pF
CPD isdefined 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 (per Gate)
SWITCHING CHARACTERISTICS TEST WAVEFORM
HC4049
HC4050
5/11
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