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54AC191F Datasheet(PDF) 6 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # 54AC191F
Description  Up/Down Counter with Preset and Ripple Clock
PDF  10 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

54AC191F Datasheet(HTML) 6 Page - National Semiconductor (TI)

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DC Characteristics for ’AC Family Devices (Continued)
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.
Note 4: IIN and ICC @ 3.0V are guaranteed to be less than or equal to the respective limit @ 5.5V VCC.
ICC for 54AC @ 25˚C is identical to 74AC @ 25˚C.
AC Electrical Characteristics
54AC
V
CC
T
A = −55˚C
to +125˚C
C
L = 50 pF
Fig.
No.
Symbol
Parameter
(V)
Units
(Note 5)
Min
Max
f
max
Maximum Count
3.3
55
MHz
Frequency
5.0
80
t
PLH
Propagation Delay
3.3
1.0
16.5
ns
CP to Q
n
5.0
1.0
12.0
t
PHL
Propagation Delay
3.3
1.0
16.0
ns
CP to Q
n
5.0
1.0
12.0
t
PLH
Propagation Delay
3.3
1.0
19.5
ns
CP to TC
5.0
1.0
14.0
t
PHL
Propagation Delay
3.3
1.0
19.0
ns
CP to TC
5.0
1.0
14.5
t
PLH
Propagation Delay
3.3
1.0
14.0
ns
CP to RC
5.0
1.0
10.5
t
PHL
Propagation Delay
3.3
1.0
12.5
ns
CP to RC
5.0
1.0
9.5
t
PLH
Propagation Delay
3.3
1.0
14.0
ns
CE to RC
5.0
1.0
10.0
t
PHL
Propagation Delay
3.3
1.0
12.5
ns
CE to RC
5.0
1.0
9.5
t
PLH
Propagation Delay
3.3
1.0
14.5
ns
U/D to RC
5.0
1.0
11.0
t
PHL
Propagation Delay
3.3
1.0
15.0
ns
U/D to RC
5.0
1.0
11.0
t
PLH
Propagation Delay
3.3
1.0
14.0
ns
U/D to TC
5.0
1.0
10.5
t
PHL
Propagation Delay
3.3
1.0
13.5
ns
U/D to TC
5.0
1.0
10.0
t
PLH
Propagation Delay
3.3
1.0
16.5
ns
P
n to Qn
5.0
1.0
11.5
t
PHL
Propagation Delay
3.3
1.0
15.5
ns
P
n to Qn
5.0
1.0
10.5
t
PLH
Propagation Delay
3.3
1.0
18.0
ns
PL to Q
n
5.0
1.0
12.5
t
PHL
Propagation Delay
3.3
1.0
15.5
ns
PL to Q
n
5.0
1.0
11.5
Note 5: Voltage Range 3.3 is 3.3V ±0.3V
Voltage Range 5.0 is 5.0V ±0.5V
www.national.com
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