mm74hct191 National Semiconductor Corporation, mm74hct191 Datasheet - Page 4

• Manufacturer Part Number: mm74hct191
• Description: Mm54hct190/mm74hct190 Synchronous Decade Up/ Down Counters With Mode Control. Mm54hct191/ Mm74hct191 Synchronous Binary Up/down Counters With Mode Control
• Manufacturer: National Semiconductor Corporation

f
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
C
C
MAX
PLH
PLH
PLH
PLH
PLH
PLH
PLH
PHL
W
S
H
S
H
S
H
THL
Symbol
IN
PD
AC Electrical Characteristics
Note 5 C
t
t
t
t
t
t
t
t
t
PHL
PHL
PHL
PHL
PHL
PHL
PHL
PLH
TLH
PD
Maximum Clock
Frequency
Maximum Propa-
gation Delay Time
Maximum Propa-
gation Delay Time
Maximum Propa-
gation Delay Time
Maximum Propa-
gation Delay Time
Maximum Propa-
gation Delay Time
Maximum Propa-
gation Delay Time
Maximum Propa-
gation Delay Time
Propagation Delay
Time
Minimum Clock
Pulse Width
Minimum Set-Up Time
Minimum Hold Time
Minimum Set-Up Time
Minimum Hold Time
Minimum Set-Up Time
Minimum Hold Time
Maximum Output
Rise and Fall Time
Maximum Input Capacitance
Power Dissipation
Capacitance (Note 5)
determines the no load dynamic power consumption P
Parameter
Down Up Ripple
Down Up Max Min
Down Up
Data A
B C D
Enable
Enable
From
Clock
Clock
Clock
Clock
Clock
Input
Load
Load
Data
Down Up
Max Min
Output
Q
Q
Q
Q
Q
Q
Enable
Ripple
Ripple
V
Clock
Clock
Clock
Clock
Clock
Load
Data
A
C
A
C
A
C
CC
To
Q
Q
Q
Q
Q
Q
D
e
B
D
B
D
B
D
e
5V
C
Conditions
PD
g
V
10% C
CC
4
2
f
a
I
CC
L
T
e
Typ
V
b
b
b
28
31
30
24
32
45
42
30
26
15
10
23
13
10
35
A
CC
5
3
7
5
50 pF t
e
and the no load dynamic current consumption I
25 C
20
44
40
30
43
55
50
45
33
25
20
30
20
15
5
0
0
r
T
e
A
eb
t
f
e
74HCT
40 C to 85 C T
6 ns unless otherwise specified
16
55
50
38
54
69
63
56
41
31
25
38
25
19
6
0
0
Guaranteed Limits
A
eb
54HCT
55 C to 125 C Units
13
66
60
45
65
83
75
68
50
38
30
45
30
22
S
8
0
0
e
C
PD
V
CC
f
a
I
CC
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
pF
pF