DC Characteristics for ’AC Family Devices
Note 2:
All outputs loaded; thresholds on input associated with output under test.
Note 3:
Maximum test duration 2.0 ms, one output loaded at a time.
(Continued)
Note 4:
I
IN
and I
CC
@
3.0V are guaranteed to be less than or equal to the respective limit
@
5.5V V
CC
.
I
CC
for 54AC
@
25˚C is identical to 74AC
@
25˚C.
AC Electrical Characteristics
V
CC
Symbol
Parameter
(V)
(Note 5)
Min
f
max
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
Maximum Count
Frequency
Propagation Delay
CP to Q
n
Propagation Delay
CP to Q
n
Propagation Delay
CP to TC
Propagation Delay
CP to TC
Propagation Delay
CP to RC
Propagation Delay
CP to RC
Propagation Delay
CE to RC
Propagation Delay
CE to RC
Propagation Delay
U/D to RC
Propagation Delay
U/D to RC
Propagation Delay
U/D to TC
Propagation Delay
U/D to TC
Propagation Delay
P
n
to Q
n
Propagation Delay
P
n
to Q
n
Propagation Delay
PL to Q
n
Propagation Delay
PL to Q
n
Note 5:
Voltage Range 3.3 is 3.3V
±
0.3V
Voltage Range 5.0 is 5.0V
±
0.5V
54AC
T
A
= −55˚C
to +125˚C
C
L
= 50 pF
Max
MHz
16.5
12.0
16.0
12.0
19.5
14.0
19.0
14.5
14.0
10.5
12.5
9.5
14.0
10.0
12.5
9.5
14.5
11.0
15.0
11.0
14.0
10.5
13.5
10.0
16.5
11.5
15.5
10.5
18.0
12.5
15.5
11.5
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
55
80
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
Units
Fig.
No.
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
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