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M54HC273 Datasheet(PDF) 5 Page - STMicroelectronics

No. de pieza M54HC273
Descripción Electrónicos  OCTAL D TYPE FLIP FLOP WITH CLEAR
PDF  11 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M54HC273 Datasheet(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
25
75
95
110
ns
4.5
7
151922
6.0
6
131619
tPLH
tPHL
Propagation
Delay Time
(CLOCK - Q)
2.0
54
145
180
220
ns
4.5
18
29
36
44
6.0
15
25
31
37
tPLH
tPHL
Propagation
Delay Time
(CLEAR - Q)
2.0
60
160
200
240
ns
4.5
20
32
40
48
6.0
17
27
34
41
fMAX
Maximum Clock
Frequency
2.0
6
18
4.8
4
MHz
4.5
30
56
24
20
6.0
35
66
28
24
tW(H)
tW(L)
Minimum Pulse
Width
(CLOCK)
2.0
28
75
95
110
ns
4.5
7
151922
6.0
6
131619
tW(L)
Minimum Pulse
Width
(CLEAR)
2.0
28
75
95
110
ns
4.5
7
151922
6.0
6
131619
ts
Minimum Set-up
Time
2.0
20
75
95
110
ns
4.5
4
151922
6.0
3
131619
th
Minimum Hold
Time
2.0
0
0
0
ns
4.5
0
0
0
6.0
0
0
0
tREM
Minimum
Removal Time
(CLEAR)
2.0
16
50
65
75
ns
4.5
4
101315
6.0
3
9
11
13
CIN
Input Capacitance
5
10
10
10
pF
CPD (*)
Power Dissipation
Capacitance
43
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 Flip FLop), and the
total CPD when n pcs of Flip Flop operate can be gained by the following equations: CPD (total) = 32 + 11 x n
M54/M74HC273
5/11



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