TC74HC74AP/AF/AFN
2007-10-01
6
AC Characteristics
(C
L
= 50 pF, input: t
r
= t
f
= 6 ns)
Test Condition Ta = 25°C Ta = −40~85°C
Characteristics Symbol
V
CC
(V)
Min Typ. Max Min Max
Unit
Output transition time
t
TLH
t
THL
⎯
2.0
4.5
6.0
⎯
⎯
⎯
30
8
7
75
15
13
⎯
⎯
⎯
95
19
16
ns
Propagation delay
time
(CK-Q,
Q
)
t
pLH
t
pHL
⎯
2.0
4.5
6.0
⎯
⎯
⎯
48
16
13
150
30
26
⎯
⎯
⎯
190
38
32
ns
Propagation delay
time
(
CLR
, PR -Q,
Q
)
t
pLH
t
pHL
⎯
2.0
4.5
6.0
⎯
⎯
⎯
51
17
15
150
30
26
⎯
⎯
⎯
190
38
32
ns
Maximum clock
frequency
f
max
⎯
2.0
4.5
6.0
6
31
36
21
63
67
⎯
⎯
⎯
5
25
29
⎯
⎯
⎯
MHz
Input capacitance C
IN
⎯ ⎯ 5 10 ⎯ 10 pF
Power dissipation
capacitance
C
PD
(Note) ⎯ 34 ⎯ ⎯ ⎯ pF
Note: C
PD
is defined as the value of the internal equivalent capacitance which is calculated from the operating
current consumption without load.
Average operating current can be obtained by the equation:
I
CC
(opr) = C
PD
･V
CC
･f
IN
+ I
CC
/2 (per F/F)
