Data Sheet

www.fairchildsemi.com 4
MM74HC374
AC Electrical Characteristics
V
CC
2.0 6.0V, 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
V
CC
T
A
25 CT
A
40 to 85 CT
A
55 to 125 C
Units
Typ Guaranteed Limits
f
MAX
Maximum Operating C
L
50 pF 2.0V 6 5 4 MHz
Frequency 4.5V 30 24 20 MHz
6.0V 35 28 23 MHz
t
PHL
, t
PLH
Maximum Propagation C
L
50 pF 2.0V 68 180 225 270 ns
Delay, Clock to Q C
L
150 pF 2.0V 110 230 288 345 ns
C
L
50 pF 4.5V 22 36 45 48 ns
C
L
150 pF 4.5V 30 46 57 69 ns
C
L
50 pF 6.0V 20 31 39 46 ns
C
L
150 pF 6.0V 28 40 50 60 ns
t
PZH
, t
PZL
Maximum Output R
L
1 k
Enable Time C
L
50 pF 2.0V 50 150 189 225 ns
C
L
150 pF 2.0V 80 200 250 300 ns
C
L
50 pF 4.5V 21 30 37 45 ns
C
L
150 pF 4.5V 30 40 50 60 ns
C
L
50 pF 6.0V 19 26 31 39 ns
C
L
150 pF 6.0V 26 35 44 53 ns
t
PHZ
, t
PLZ
Maximum Output R
L
1 k 2.0V 50 150 189 225 ns
Disable Time C
L
50 pF 4.5V 21 30 37 45 ns
6.0V 19 26 31 39 ns
t
S
Minimum Setup Time 2.0V 50 60 75 ns
4.5V 9 13 15 ns
6.0V 9 11 13 ns
t
H
Minimum Hold Time 2.0V 5 30 5 ns
4.5V 5 5 5 ns
6.0V 5 5 5 ns
t
W
Minimum Pulse Width 2.0V 30 80 100 120 ns
4.5V 9 16 20 24 ns
6.0V 8 14 18 20 ns
t
THL
, t
TLH
Maximum Output Rise C
L
50 pF 2.0V 25 60 75 90 ns
and Fall Time 4.5V 7 12 15 18 ns
6.0V 6 10 13 15 ns
t
r
, t
f
Maximum Input Rise and 2.0V 1000 1000 1000 ns
Fall Time, Clock 4.5V 500 500 500 ns
6.0V 400 400 400 ns
C
PD
Power Dissipation (per flip-flop)
Capacitance (Note 5) OC V
CC
30 pF
OC GND 50 pF
C
IN
Maximum Input Capacitance 5 10 10 10 pF