IN74VHC74
AC electrical characteristics
(t
LH
= t
HL
= 3.0 ns)
Value
25
°
C
–40
to 85
°
C
min
–
–
Symbol
Parameter
Test conditions
V
CC
, V
C
L
,
pF
min
–
–
max
11.9
15.4
max
14.0
17.5
Unit
15
50
t
PHL
,
t
PLH
Propagation delay time
when
switching
"off" from input
СР
to
outputs Q,
Q
"on",
V
IL
= 0 V,
V
I
Н
= Vcc
,
3.3 ± 0.3
ns
15
50
–
–
7.3
8.3
–
–
8.5
10.5
t
PHL
,
t
PLH
Propagation delay time
when
switching
"off" from input
СР
to
outputs Q,
Q
"on",
V
IL
= 0 V,
V
I
Н
=Vcc
,
5.0 ± 0.5
ns
15
50
–
–
12.3
15.8
–
–
14.5
18.0
t
PHL
,
t
PLH
Propagation delay time
when
switching
"off" from inputs
RD
to outputs Q,
Q
"on",
SD
,
V
IL
= 0 V,
V
I
Н
= Vcc
,
3.3 ± 0.3
ns
15
50
–
–
7.7
9.7
–
–
9.0
11.0
t
PHL
,
t
PLH
Propagation delay time
when
switching
"off" from inputs
RD
to outputs Q,
Q
"on",
SD
,
V
IL
= 0 V,
V
I
Н
=Vcc
,
5.0 ± 0.5
ns
15
50
–
–
80
50
–
–
70
45
f
max
Maximum
Frequency
Clock
V
IL
V
I
Н
=Vcc
,
V
IL
V
I
Н
=Vcc
,
V
IL
V
I
Н
=Vcc
,
=
0
V,
3.3 ± 0.5
MHz
15
50
–
–
130
90
–
–
110
75
f
max
Maximum
Frequency
Clock
=
0
V,
5.0 ± 0.5
MHz
3.3 ± 0.3
5.0 ± 0.5
3.0 ± 0.3
5.0 ± 0.5
6.0
5.0
0.5
0.5
5.0
3.0
–
–
–
–
–
–
7.0
5.0
0.5
0.5
5.0
3.0
–
–
–
–
–
–
t
SU
Time of setting signal D
to CP
Retention time, D signal
to CP
=
0
V,
15 -
50
15 -
50
15 -
50
t
H
V
IL
V
I
Н
=Vcc
,
V
IL
V
I
Н
=Vcc
,
=
0
V,
ns
3.0 ± 0.3
5.0 ± 0.5
t
REM
Time of recovery of
signal
СР
after signals
SD
,
RD
=
0
V,
3.0 ± 0.3
5.0 ± 0.5
6.0
5.0
–
–
7.0
6.0
–
–
t
W
Pulse duration of CP,
SD
,
RD
signals
Input capacity
Dynamic capacity
V
IL
V
I
Н
=Vcc
,
=
0
V,
15 -
50
C
I
C
Р
D
5.0
5.0
10
50
pF
V
I
= 0 V orV
CC
5