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M74HC541 датащи(PDF) 6 Page - STMicroelectronics

номер детали M74HC541
подробное описание детали  OCTAL BUS BUFFER WITH 3 STATE OUTPUTS HC540: INVERTED - HC541 NON INVERTED
PDF  12 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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TEST CIRCUIT ICC (Opr.)
HC540
AC ELECTRICAL CHARACTERISTICS (CL =50 pF, Input tr =tf =6 ns)
Symbol
Parameter
Test Conditions
Value
Unit
VCC
(V)
CL
(pF)
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
50
25
60
75
90
ns
4.5
7
121918
6.0
6
101315
tPLH
tPHL
Propagation
Delay Time
2.0
50
40
85
105
130
ns
4.5
10
17
21
26
6.0
9
141822
2.0
150
56
115
145
175
ns
4.5
14
23
29
35
6.0
12
20
25
30
tPZL
tPZH
Output Enable
Time
2.0
50
RL =1K
Ω
47
110
140
165
ns
4.5
13
22
28
33
6.0
11
19
24
28
2.0
150
RL =1K
Ω
61
135
170
205
ns
4.5
17
27
34
41
6.0
14
23
29
35
tPLZ
tPHZ
Output Disable
Time
2.0
50
RL =1K
Ω
52
110
140
165
ns
4.5
15
22
28
33
6.0
13
19
24
28
CIN
Input Capacitance
5
10
10
10
pF
CPD (*)
Power Dissipation
Capacitance
31
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/8 (per gate)
M54/M74HC540/541
6/12



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