Datasheet
www.fairchildsemi.com 4
MM74HCT164
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
f+I
CC
.
Symbol Parameter Conditions Typ
Guaranteed
Units
Limit
f
MAX
Maximum Operating 50% Duty 55 35 MHz
Frequency from Clock to Q Cycle Clock
t
PHL
, t
PLH
Maximum Propagation 17 27 ns
Delay Clock to Q
t
PHL
Maximum Propagation 23 38 ns
Delay from Clear to Q
t
REM
Minimum Removal Time, 3 6 ns
Clear to Clock
t
S
Minimum Set Up Time t
H
≥ 20 ns 6 13 ns
Data to Clock
t
H
Minimum Hold Time t
S
≥ 20 ns 1.5 5 ns
Clock to Data
t
W
Minimum Pulse Width 9 16 ns
Clock, Preset or Clear
Symbol Parameter Conditions
T
A
= 25°CT
A
= −40°C to 85°CT
A
= −55°C to 125°C
Units
Typ Max Min Max Min Max
f
MAX
Maximum Operating 50% Duty 45 30 25 22 MHz
Frequency Cycle Clock
t
PHL
, t
PLH
Maximum Propagation 20 30 38 45 ns
Delay from Clock to Q
t
PHL
Maximum Propagation 26 41 51 61 ns
Delay from Clear to Q
t
REM
Minimum Removal Time 4 8 10 14 ns
Clear to Clock
t
S
Minimum Setup Time t
H
≥ 20 ns 7 15 19 23 ns
Data to Clock
t
H
Minimum Hold Time t
S
≥ 20 ns 1.5 5 5 5 ns
Clock to Data
t
W
Minimum Pulse Width 10 18 22 27 ns
Clock, or Clear
t
r
, t
f
Maximum Input Rise and 500 500 500 ns
Fall Time
t
THL
, t
TLH
Maximum Output 15 19 22 ns
Rise and Fall Time
C
PD
Power Dissipation (per flip-flop) 160 pF
Capacitance (Note 5)
C
IN
Maximum Input 5 10 10 10 pF
Capacitance