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74VHC273 датащи(PDF) 6 Page - Fairchild Semiconductor

номер детали 74VHC273
подробное описание детали  Octal D-Type Flip-Flop
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производитель  FAIRCHILD [Fairchild Semiconductor]
домашняя страница  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

74VHC273 датащи(HTML) 6 Page - Fairchild Semiconductor

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©1994 Fairchild Semiconductor Corporation
www.fairchildsemi.com
74VHC273 Rev. 1.5
6
AC Electrical Characteristics
Notes:
3. Parameter guaranteed by design tOSLH = |tPLHmax – tPLHmin|; tOSHL = |tPHLmax – tPHLmin|.
4. CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating
current consumption without load. Average operating current can be obtained from the equation:
ICC (opr.) = CPD • VCC • fIN + ICC / 8 (per F/F). The total CPD when n pieces of the Flip-Flop operates can be
calculated by the equation: CPD (total) = 22 + 9n.
AC Operating Requirements
Note:
5. VCC is 3.3 ± 0.3V or 5.0 ± 0.5V
Symbol
Parameter
VCC (V)
Conditions
TA = 25°C
TA = –40°C
to +85°C
Units
Min.
Typ.
Max.
Min.
Max.
fMAX
Maximum Clock
Frequency
3.3 ± 0.3
CL = 15pF
75
120
65
MHz
CL = 50pF
50
75
45
5.0 ± 0.5
CL = 15pF
120
165
100
MHz
CL = 50pF
80
110
70
tPLH, tPHL Propagation Delay
Time (CK – Q)
3.3 ± 0.3
CL = 15pF
8.7
13.6
1.0
16.0
ns
CL = 50pF
11.2
17.1
1.0
19.5
5.0 ± 0.5
CL = 15pF
5.8
9.0
1.0
10.5
ns
CL = 50pF
7.3
11.0
1.0
12.5
tPHL
Propagation Delay
Time (MR – Q)
3.3 ± 0.3
CL = 15pF
8.9
13.6
1.0
16.0
ns
CL = 50pF
11.4
17.1
1.0
19.5
5.0 ± 0.5
CL = 15pF
5.2
8.5
1.0
10.0
ns
CL = 50pF
6.7
10.5
1.0
12.0
tOSLH,
tOSHL
Output to Output
Skew
3.3 ± 0.3
(3)
CL = 50pF
1.5
1.5
ns
5.0 ± 0.5
CL = 50pF
1.0
1.0
CIN
Input Capacitance
VCC = Open
4.0
10.0
10.0
pF
CPD
Power Dissipation
Capacitance
(4)
31
pF
Symbol
Parameter
VCC (V)
(5)
TA = 25°C
TA = –40°C to +85°C
Units
Typ.
Guaranteed Minimum
tW(L), tW(H)
Minimum Pulse Width (CK)
3.3
5.5
6.5
ns
5.0
5.0
5.0
tW(L)
Minimum Pulse Width (MR)
3.3
5.0
6.0
ns
5.0
5.0
5.0
tS
Minimum Setup Time
3.3
5.5
6.5
ns
5.0
4.5
4.5
tH
Minimum Hold Time
3.3
1.0
1.0
ns
5.0
1.0
1.0
tREC
Minimum Removal Time (MR)
3.3
2.5
2.5
ns
5.0
2.0
2.0


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