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54AC161F Datasheet(PDF) 8 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # 54AC161F
Description  Synchronous Presettable Binary Counter
PDF  12 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

54AC161F Datasheet(HTML) 8 Page - National Semiconductor (TI)

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AC Operating Requirements (Continued)
54AC
V
CC
T
A = −55˚C
Fig.
Symbol
Parameter
(V)
to +125˚C
Units
No.
(Note 9)
C
L = 50 pF
Guaranteed Minimum
t
rec
Recovery Time
1.5
ns
MR to CP
2.0
Note 9: Voltage Range 3.3 is 3.3V ±0.3V
Voltage Range 5.0 is 5.0V ±0.5V
AC Electrical Characteristics
54ACT
V
CC
T
A = −55˚C
Fig.
Symbol
Parameter
(V)
to +125˚C
Units
No.
(Note 10)
C
L = 50 pF
Min
Max
f
max
Maximum Count
5.0
85
MHz
Frequency
t
PLH
Propagation Delay CP to Q
n
5.0
1.0
10.5
ns
(PE Input HIGH or LOW)
t
PHL
Propagation Delay CP to Q
n
5.0
1.0
10.5
ns
(PE Input HIGH or LOW)
t
PLH
Propagation Delay
5.0
1.0
14.0
ns
CP to TC
t
PHL
Propagation Delay
5.0
1.0
12.5
ns
CP to TC
t
PLH
Propagation Delay
5.0
1.0
9.5
ns
CET to TC
t
PHL
Propagation Delay
5.0
1.0
9.5
ns
CET to TC
t
PHL
Propagation Delay
5.0
1.0
10.0
ns
MR to Q
n
t
PHL
Propagation Delay
5.0
1.0
11.5
ns
MR to TC
Note 10: Voltage Range 5.0 is 5.0V ±0.5V
AC Operating Requirements
54ACT
V
CC
T
A = −55˚C
Fig.
Symbol
Parameter
(V)
to +125˚C
Units
No.
(Note
11)
C
L = 50 pF
Guaranteed Minimum
t
s
Setup Time, HIGH or LOW
5.0
13.0
ns
P
n to CP
t
h
Hold Time, HIGH or LOW
5.0
0
ns
P
n to CP
t
s
Setup Time, HIGH or LOW
5.0
11.0
ns
PE to CP
www.national.com
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