MM74HCT74 Просмотр технического описания (PDF) - Fairchild Semiconductor
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MM74HCT74 Datasheet PDF : 10 Pages
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AC Electrical Characteristics
VCC = 5.0V ± 10%, CL = 50 pF, tr = tf = 6ns unless otherwise specified.
Symbol
Parameter
TA = 25°C TA = –40° to +85°C
Conditions Typ.
Guaranteed Limits
Units
fMAX
tPHL, tPLH
Maximum Operating Frequency
Maximum Propagation Delay from
Clock to Q or Q
27
21
35
21
MHz
44
ns
tPHL, tPLH Maximum Propagation Delay from
Preset or Clear to Q or Q
21
35
44
ns
tREM
Minimum Removal Time Preset or
Clear to Clock
20
25
ns
tS
Minimum Setup Time Data to
Clock
20
25
ns
tH
Minimum Hold Time Clock to Data
tW
Minimum Pulse Width Clock,
Preset or Clear
–3
0
0
ns
9
16
20
ns
tr, tf
Maximum Clock Input Rise and
Fall Time
500
500
ns
tTHL, tTLH Maximum Output Rise and Fall
15
Time
CPD
Power Dissipation Capacitance(5) (per flip-flop)
10
CIN
Maximum Input Capacitance
5
10
19
ns
pF
10
pF
Note:
5. 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.
©1984 Fairchild Semiconductor Corporation
MM74HCT74 Rev. 1.4.0
5
www.fairchildsemi.com
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