54F NSC [National Semiconductor], 54F Datasheet - Page 5

• Manufacturer Part Number: 54F
• Description: Up/Down Binary Counter with Separate Up/Down Clocks
• Manufacturer: NSC [National Semiconductor]

Symbol
f
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Symbol
t
t
t
t
t
t
t
t
t
t
max
PLH
PHL
PLH
PHL
PLH
PHL
PLH
PHL
PHL
PLH
PHL
PLH
PHL
PLH
PHL
AC Electrical Characteristics
AC Operating Requirements
s
s
h
h
w
w
w
w
rec
rec
(H)
(L)
(H)
(L)
(L)
(L)
(L)
(H)
Maximum Count Frequency
Propagation Delay
CP
TC
Propagation Delay
CP
Propagation Delay
P
Propagation Delay
PL to Q
Propagation Delay
MR to Q
Propagation Delay
MR to TC
Propagation Delay
MR to TC
Propagation Delay
PL to TC
Propagation Delay
P
n
n
Setup Time HIGH or LOW
P
Hold Time HIGH or LOW
P
PL Pulse Width LOW
CP
Pulse Width LOW
CP
Pulse Width LOW
(Change of Direction)
MR Pulse Width HIGH
Recovery Time
PL to CP
Recovery Time
MR to CP
U
n
n
U
U
to Q
to TC
to PL
to PL
U
U
or TC
or CP
or CP
or CP
or CP
n
n
Parameter
n
U
U
Parameter
U
D
U
D
D
D
or TC
or TC
U
D
D
or CP
to
to Q
or CP
D
D
n
D
D
Min
100
4 0
3 5
4 0
5 5
3 0
6 0
5 0
5 5
5 5
6 0
6 0
7 0
7 0
7 0
6 5
10 0
Min
4 5
4 5
2 0
2 0
6 0
5 0
6 0
6 0
4 0
V
T
CC
A
V
e a
T
e a
C
CC
74F
A
L
e a
e
e a
11 0
10 0
11 0
10 5
11 5
12 0
11 5
11 5
11 0
74F
Typ
25 C
125
7 0
6 0
6 5
9 5
4 5
8 5
5 0V
Max
50 pF
25 C
5 0V
5
Max
12 5
14 5
11 0
13 0
14 5
13 5
14 5
15 5
14 5
14 5
14 0
8 0
9 0
8 5
7 0
12 0
Min
6 0
6 0
2 0
2 0
7 5
7 0
6 0
8 0
4 5
T
A
V
Min
54F
CC
T
4 0
3 5
3 5
5 5
3 0
6 0
5 0
5 5
5 0
5 0
6 0
7 0
6 0
6 0
5 0
75
C
A
L
e
V
e
54F
CC
Mil
50 pF
Max
e
Max
10 5
10 0
14 0
16 5
13 5
15 0
16 0
15 0
16 0
18 5
17 5
16 5
16 5
9 5
8 5
Mil
T
10 0
Min
5 0
5 0
2 0
2 0
6 0
5 0
6 0
6 0
4 0
A
T
Min
4 0
3 5
4 0
5 5
3 0
6 0
5 0
5 5
5 5
6 0
6 0
7 0
7 0
7 0
6 5
A
90
V
C
CC
L
V
74F
CC
e
74F
e
50 pF
e
Com
Max
Com
Max
10 0
13 5
15 5
12 0
14 0
15 5
14 5
15 5
16 5
15 5
15 5
15 0
9 0
9 5
8 0
Units
Units
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns