MM74HC74AM(1999) Просмотр технического описания (PDF) - Fairchild Semiconductor
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MM74HC74AM Datasheet PDF : 7 Pages
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AC Electrical Characteristics
VCC = 5V, TA = 25°C, CL = 15 pF, tr = tf = 6 ns
Symbol
Parameter
fMAX
tPHL, tPLH
tPHL, tPLH
tREM
ts
tH
tW
Maximum Operating Frequency
Maximum Propagation
Delay Clock to Q or Q
Maximum Propagation
Delay Preset or Clear to Q or Q
Minimum Removal Time,
Preset or Clear to Clock
Minimum Setup Time
Data to Clock
Minimum Hold Time
Clock to Data
Minimum Pulse Width
Clock, Preset or Clear
Conditions
Guaranteed
Typ
Units
Limit
72
30
MHz
10
30
ns
17
40
ns
6
5
ns
10
20
ns
0
0
ns
8
16
ns
AC Electrical Characteristics
CL = 50 pF, tr = tf = 6 ns (unless otherwise specified)
Symbol
Parameter
Conditions
VCC
TA = 25°C
TA = −40 to 85°C TA = −55 to 125°C
Typ
Guaranteed Limits
fMAX
Maximum Operating
Frequency
2.0V
22
6
5
4
4.5V
72
30
24
20
6.0V
94
35
28
24
tPHL, tPLH Maximum Propagation
Delay Clock to Q or Q
2.0V
34
110
140
165
4.5V
12
22
28
33
6.0V
10
19
24
28
tPHL, tPLH Maximum Propagation
Delay Preset or Clear
2.0V
66
150
190
225
4.5V
20
30
38
45
To Q or Q
6.0V
16
26
33
38
tREM
Minimum Removal Time
Preset or Clear
2.0V
20
50
65
75
4.5V
6
10
13
15
To Clock
6.0V
5
9
11
13
ts
Minimum Setup Time
Data to Clock
2.0V
35
80
100
120
4.5V
10
16
20
24
6.0V
8
14
17
20
tH
Minimum Hold Time
Clock to Data
2.0V
4.5V
0
0
0
0
0
0
6.0V
0
0
0
tW
Minimum, Pulse Width
Clock, Preset or Clear
2.0V
30
80
101
119
4.5V
9
16
20
24
6.0V
8
14
17
20
tTLH, tTHL Maximum Output
Rise and Fall Time
2.0V
25
75
95
110
4.5V
7
15
19
22
6.0V
6
13
16
19
tr, tf
Maximum Input Rise
and Fall Time
2.0V
4.5V
1000
500
1000
500
1000
500
6.0V
400
400
400
CPD
Power Dissipation
(per flip-flop)
80
Capacitance (Note 6)
CIN
Maximum Input
Capacitance
5
10
10
10
Note 6: CPD determines the no load dynamic power consumption, PD = CPD VCC2 f + ICC VCC, and the no load dynamic current consumption,
IS = CPD VCC f + ICC.
Units
MHz
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
pF
pF
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