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MM74HC273
AC Electrical Characteristics
VCC
5V, TA
25
q
C, CL
15 pF, tr
tf
6 ns
AC Electrical Characteristics
CL
50 pF, t r
tf
6 ns (unless otherwise specified)
Note 5: CPD determines the no load dynam ic pow er cons um ption, PD
CPD VCC2f
ICC VCC, and the no load dynamic current consumption,
IS
CPD VCC f
ICC.
Symbol Parameter Conditions Typ Guaranteed Units
Limit
fMAX Maximum Operating Frequency 50 30 MHz
tPHL, tPLH Maximum Propagation 18 27 ns
Delay, Clock to Output
tPHL Maximum Propagation 18 27 ns
Delay, Clear to Output
tREM Minimum Re mova l Time, 10 20 ns
Clear to Clock
tsMinimum Setu p T im e 10 20 ns
Data to Clock
tHMinimum Ho ld T ime
20ns
Clock to Data
tWMinimum Pulse Width 10 16 ns
Clock or Clear
Symbol Parameter Conditions VCC TA
25
q
CT
A
40 to 85
q
CT
A
55 to 125
q
CUnits
Typ Guaranteed Limits
fMAX Maximum Operating 2.0V 16 5 4 3 MHz
Frequency 4.5V 74 27 21 18 MHz
6.0V 78 31 24 20 MHz
tPHL, tPLH Maximum Propagation 2.0V 38 135 170 205 ns
Delay, Clock to Output 4.5V 14 27 34 41 ns
6.0V 12 23 29 35 ns
tPHL Maximum Propagation 2.0V 42 135 170 205 ns
Delay, Clear to Output 4.5V 19 27 34 41 ns
6.0V 18 23 29 35 ns
tREM Minimum Removal Time 2.0V 0 25 32 37 ns
Clear to Clock 4.5V 0 5 6 7 ns
6.0V 0 4 5 6 ns
tsMinimum Setup Time 2.0V 26 100 125 150 ns
Data to Clock 4.5V 7 20 25 30 ns
6.0V 5 17 21 25 ns
tHMinimum Hold Time 2.0V
15 0 0 0 ns
Clock to Data 4.5V
60 0 0 ns
6.0V
40 0 0 ns
tWMinimum Pulse Width 2.0V 34 80 100 120 ns
Clock or Clear 4.5V 11 16 20 24 ns
6.0V 10 14 18 20 ns
tr, tfMaximum Input Rise and 2.0V 1000 1000 1000 ns
Fall Time, Clock 4.5V 500 500 500 ns
6.0V 400 400 400 ns
tTHL, tTLH Maximum Output Rise 2.0V 28 75 95 110 ns
and Fall Time 4.5V 11 15 19 22 ns
6.0V 9 13 16 19 ns
CPD Power Dissipation (per flip-flop) 45 pF
Capacitance (Note 5)
CIN Maximum Input 7 10 10 10 pF
Capacitance