Datasheet

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MM74HCT273
AC Electrical Characteristics
V
CC
5V, T
A
25 C, C
L
15 pF, t
r
t
f
6 ns
AC Electrical Characteristics
V
CC
5.0V 10%, C
L
50 pF, t
r
t
f
6 ns unless otherwise specified
Note 5: C
PD
determines the no load dynamic power consumption, P
D
C
PD
V
CC
2
f I
CC
V
CC
, and the no load dynamic current consumption,
I
S
C
PD
V
CC
2
f I
CC
.
Symbol Parameter Conditions Typ
Guaranteed
Units
Limits
f
MAX
Maximum Operating Frequency 68 30 MHz
t
PHL
, t
PLH
Maximum Propagation Delay from Clock to Q 18 30 ns
t
PHL
, t
PLH
Maximum Propagation Delay from Clear to Q 21 30 ns
t
REM
Minimum Removal Time, Clear to Clock 15ns
t
S
Minimum Set-Up Time D to Clock 6 20 ns
t
H
Minimum Hold Time Clock to D 35ns
t
W
Minimum Pulse Width Clock or Clear 10 16 ns
Symbol Parameter Conditions T
A
25 CT
A
40 C to 85 CT
A
55 C to 125 CUnits
Typ Guaranteed Limits
f
MAX
Maximum Operating 68 27 21 18 MHz
Frequency
t
PHL
, t
PLH
Maximum Propagation 22 37 46 56 ns
Delay from Clock to Q
t
PHL
, t
PLH
Maximum Propagation 25 35 44 52 ns
Delay from Clear to Q
t
REM
Minimum Removal 15 6 7 ns
Time Clear to Clock
t
S
Minimum Set-Up Time 6 20 25 30 ns
D to Clock
t
H
Minimum Hold Time 35 5 5 ns
Clock to D
t
W
Minimum Pulse Width 10 16 25 30 ns
Clock or Clear
t
r
, t
f
Maximum Input Rise 500 500 500 ns
and Fall Time, Clock
t
THL
, t
TLH
Maximum Output Rise 11 15 19 22 ns
and Fall Time
C
PD
Power Dissipation (Per Flip-Flop) 50 pF
Capacitance (Note 5)
C
IN
Maximum Input 6 10 10 10 pF
Capacitance