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M74HC253 数据表(PDF) 6 Page - STMicroelectronics

部件名 M74HC253
功能描述  HC253 DUAL 4 CHANNEL MULTIPLEXER 3 STATE OUTPUT HC153 DUAL 4 CHANNEL MULTIPLEXER
PDF  12 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

M74HC253 数据表(HTML) 6 Page - STMicroelectronics

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AC ELECTRICAL CHARACTERISTICS (CL =50 pF, Input tr =tf =6 ns)
Symbol
Parameter
Test Conditions
Value
Unit
VCC
(V)
TA =25
oC
54HC and 74HC
-40 to 85
oC
74HC
-55 to 125
oC
54HC
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
tTLH
tTHL
Output Transition
Time
2.0
30
75
95
110
ns
4.5
8
151922
6.0
7
131619
tPLH
tPHL
Propagation
Delay Time
(Cn - Y)
2.0
48
115
145
175
ns
4.5
15
23
29
35
6.0
12
20
25
30
tPLH
tPHL
Propagation
Delay Time
(A, B - Y)
2.0
68
150
190
225
ns
4.5
20
30
38
45
6.0
16
26
32
38
tPLH
tPHL
Propagation
Delay Time
(G - Y)
2.0
30
85
105
130
ns
4.5
10
17
21
26
6.0
9
141822
tPZL
tPZH
Propagation
Delay Time (for
HC253) (G - Y)
2.0
RL =1K
Ω
36
100
125
150
ns
4.5
12
20
25
30
6.0
9
172126
tPLZ
tPHZ
Propagation
Delay Time (for
HC253) (G - Y)
2.0
RL =1K
Ω
22
100
125
150
ns
4.5
11
20
25
30
6.0
9
172126
CIN
Input Capacitance
5
10
10
10
pF
CPD (*)
Power Dissipation
Capacitance
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/4 (per circuit)
M54/M74HC153 M54/M74HC253
6/12



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