TC74HC191AP/AF
AC Characteristics
(C
L
=
50 pF, input: t
r
=
t
f
=
6 ns)
Characteristics
Symbol
Test Condition
V
CC
(V)
2.0
⎯
Ta
=
25°C
Min
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
Ta
= −
40~85°C
Max
75
15
13
180
36
31
120
24
20
240
48
41
205
41
35
175
35
30
105
21
18
180
36
31
160
32
27
⎯
⎯
⎯
Typ.
30
8
7
88
22
19
52
13
11
108
27
23
100
25
22
84
21
18
56
14
12
84
21
18
72
18
15
11
44
52
5
101
Min
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
Max
95
19
16
225
45
38
150
30
26
300
60
51
255
51
43
220
44
37
130
26
22
225
45
38
200
40
34
⎯
⎯
⎯
Unit
Output transition time
t
TLH
t
THL
4.5
6.0
2.0
ns
Propagation delay
time
(CK-Q)
Propagation delay
time
(CK-
RCO
)
Propagation delay
time
(CK-MAX/MIN)
Propagation delay
time
(
LOAD
-Q)
Propagation delay
time
(DATA-Q)
Propagation delay
time
( ENABLE -
RCO
)
Propagation delay
time
(D/ U - RCO )
Propagation delay
time
(D/
U
-MAX/MIN)
t
pLH
t
pHL
t
pLH
t
pHL
⎯
4.5
6.0
2.0
ns
⎯
4.5
6.0
2.0
ns
t
pLH
t
pHL
⎯
4.5
6.0
2.0
ns
t
pLH
t
pHL
⎯
4.5
6.0
2.0
ns
t
pLH
t
pHL
⎯
4.5
6.0
2.0
ns
t
pLH
t
pHL
⎯
4.5
6.0
2.0
ns
t
pLH
t
pHL
⎯
4.5
6.0
2.0
ns
t
pLH
t
pHL
⎯
4.5
6.0
2.0
ns
5
25
29
⎯
⎯
4
20
24
⎯
⎯
Maximum clock
frequency
Input capacitance
Power dissipation
capacitance
f
max
⎯
4.5
6.0
MHz
C
IN
C
PD
(Note)
⎯
⎯
10
⎯
10
⎯
pF
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
�½�V
CC
�½�f
IN
+
I
CC
9
2007-10-01
TOSHIBA [ TOSHIBA SEMICONDUCTOR ]
