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M54HC237 数据表(PDF) 5 Page - STMicroelectronics

部件名 M54HC237
功能描述  3 TO 8 LINE DECODER LATCH
PDF  11 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

M54HC237 数据表(HTML) 5 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
115
ns
4.5
8
151922
6.0
7
131619
tPLH
tPHL
Propagation
Delay Time
(A, B, C - Y)
2.0
60
180
225
270
ns
4.5
19
36
45
54
6.0
16
31
38
46
tPLH
tPHL
Propagation
Delay Time
(G1 - Y)
2.0
45
140
175
210
ns
4.5
15
28
35
42
6.0
13
24
30
36
tPLH
tPHL
Propagation
Delay Time
(G2 - Y)
2.0
45
140
175
210
ns
4.5
15
28
35
42
6.0
13
24
30
36
tPLH
tPHL
Propagation
Delay Time
(GL - Y)
2.0
65
190
240
285
ns
4.5
21
38
48
57
6.0
18
32
41
48
tW(L)
Minimum Pulse
Width
(GL)
2.0
10
75
95
110
ns
4.5
6
151922
6.0
6
131619
ts
Minimum Set-up
Time
(A, B, C - GL)
2.0
12
50
65
75
ns
4.5
3
101315
6.0
2
9
11
13
th
Minimum Hold
Time
(A, B, C - GL)
2.0
25
30
40
ns
4.5
5
6
8
6.0
5
5
7
CIN
Input Capacitance
5
10
10
10
pF
CPD (*)
Power Dissipation
Capacitance
52
pF
(*) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load.
SWITCHING CHARACTERISTICS TEST WAVEFORM
M54/M74HC237
5/11



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